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description Publicationkeyboard_double_arrow_right Article , Preprint , Other literature type 2024 FrancePublisher:Cellule MathDoc/CEDRAM Funded by:EC | NUHGD, ANR | ISDEECEC| NUHGD ,ANR| ISDEECAuthors: Buzzi, Jérôme; Kloeckner, Benoît,; Leplaideur, Renaud;Buzzi, Jérôme; Kloeckner, Benoît,; Leplaideur, Renaud;We define a nonlinear thermodynamical formalism which translates into dynamical system theory the statistical mechanics of generalized mean-field models, extending investigation of the quadratic case by Leplaideur and Watbled. Under suitable conditions, we prove a variational principle for the nonlinear pressure and we characterize the nonlinear equilibrium measures and relate them to specific classical equilibrium measures. In this non-linear thermodynamical formalism, which can, e.g., model mean-field approximation of large systems, several kind of phase transitions appear, some of which cannot happen in the linear case. We use our correspondence between non-linear and linear equilibrium measures to further the understanding of phase transitions, { both in previously known cases (Curie-Weiss and Potts models) and in} new examples (metastable phase transition). Finally, we apply some of the ideas introduced to the classical thermodynamical formalism, proving that freezing phase transitions can occur over \emph{any} zero-entropy invariant compact subset of the phase space. 44 pages several very nice figures
Annales Henri Lebesg... arrow_drop_down Mémoires en Sciences de l'Information et de la CommunicationPreprint . 2021https://doi.org/10.48550/arxiv...Article . 2020License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5802/ahl.192&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Annales Henri Lebesg... arrow_drop_down Mémoires en Sciences de l'Information et de la CommunicationPreprint . 2021https://doi.org/10.48550/arxiv...Article . 2020License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5802/ahl.192&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2024 Norway, FrancePublisher:Cellule MathDoc/CEDRAM Funded by:EC | POEMAEC| POEMAAuthors: Debus, Sebastian; Moustrou, Philippe; Riener, Cordian; Verdure, Hugues;Debus, Sebastian; Moustrou, Philippe; Riener, Cordian; Verdure, Hugues;Specht polynomials classically realize the irreducible representations of the symmetric group. The ideals defined by these polynomials provide a strong connection with the combinatorics of Young tableaux and have been intensively studied by several authors. We initiate similar investigations for the ideals defined by the Specht polynomials associated to the hyperoctahedral group $B_n$. We introduce a bidominance order on bipartitions which describes the poset of inclusions of these ideals and study algebraic consequences on general $B_n$-invariant ideals and varieties, which can lead to computational simplifications. Comment: Some revisions due to comments of referees
Algebraic Combinator... arrow_drop_down https://doi.org/10.48550/arxiv...Article . 2022License: arXiv Non-Exclusive DistributionData sources: DataciteHAL Descartes; Hyper Article en Ligne; Mémoires en Sciences de l'Information et de la CommunicationOther literature type . Preprint . 2022add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5802/alco.316&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Algebraic Combinator... arrow_drop_down https://doi.org/10.48550/arxiv...Article . 2022License: arXiv Non-Exclusive DistributionData sources: DataciteHAL Descartes; Hyper Article en Ligne; Mémoires en Sciences de l'Information et de la CommunicationOther literature type . Preprint . 2022add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5802/alco.316&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Preprint , Article , Other literature type 2024 FrancePublisher:Elsevier BV Funded by:EC | POEMA, NSERC, ANR | SESAME +1 projectsEC| POEMA ,NSERC ,ANR| SESAME ,ANR| ECARPAuthors: Rémi Prébet; Mohab Safey El Din; Éric Schost;Rémi Prébet; Mohab Safey El Din; Éric Schost;Answering connectivity queries in real algebraic sets is a fundamental problem in effective real algebraic geometry that finds many applications in e.g. robotics where motion planning issues are topical. This computational problem is tackled through the computation of so-called roadmaps which are real algebraic subsets of the set V under study, of dimension at most one, and which have a connected intersection with all semi-algebraically connected components of V. Algorithms for computing roadmaps rely on statements establishing connectivity properties of some well-chosen subsets of V , assuming that V is bounded. In this paper, we extend such connectivity statements by dropping the boundedness assumption on V. This exploits properties of so-called generalized polar varieties, which are critical loci of V for some well-chosen polynomial maps. Comment: 26 pages, 23 figures
arXiv.org e-Print Ar... arrow_drop_down Journal of Symbolic ComputationArticle . 2024 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefhttps://doi.org/10.48550/arxiv...Article . 2022License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jsc.2023.102234&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert arXiv.org e-Print Ar... arrow_drop_down Journal of Symbolic ComputationArticle . 2024 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefhttps://doi.org/10.48550/arxiv...Article . 2022License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jsc.2023.102234&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Preprint 2024 FrancePublisher:International Press of Boston Funded by:EC | SOS, EC | IPFLOWEC| SOS ,EC| IPFLOWAuthors: Bonthonneau, Yannick Guedes; Guillarmou, Colin; Jézéquel, Malo;Bonthonneau, Yannick Guedes; Guillarmou, Colin; Jézéquel, Malo;For analytic negatively curved Riemannian manifold with analytic strictly convex boundary, we show that the scattering map for the geodesic flow determines the manifold up to isometry. In particular one recovers both the topology and the metric. More generally, our result holds in the analytic category under the no conjugate point and hyperbolic trapped sets assumptions. Comment: v2: added Propositions 2.6 and 2.7 and Appendix B v3: Electronic copy of final peer-reviewed manuscript accepted for publication
arXiv.org e-Print Ar... arrow_drop_down https://doi.org/10.48550/arxiv...Article . 2022License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.4310/cjm.2024.v12.n1.a2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert arXiv.org e-Print Ar... arrow_drop_down https://doi.org/10.48550/arxiv...Article . 2022License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.4310/cjm.2024.v12.n1.a2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint , Other literature type 2024 FrancePublisher:Elsevier BV Funded by:EC | COMPRISEEC| COMPRISEAuthors: Imran Sheikh; Emmanuel Vincent; Irina Illina;Imran Sheikh; Emmanuel Vincent; Irina Illina;International audience; Training domain-specific automatic speech recognition (ASR) systems requires a suitable amount of data comprising the target domain. In several scenarios, such as early development stages, privacy-critical applications, or under-resourced languages, only a limited amount of in-domain speech data and an even smaller amount of manual text transcriptions, if any, are available. This motivates the study of ASR language model (LM) training on a limited amount of in-domain speech data. Early works have attempted training of n-gram LMs from ASR N-best lists and lattices but training and adaptation of recurrent neural network (RNN) LMs from ASR transcripts has not received attention. In this work, we study training and adaptation of RNN LMs using alternate, uncertain ASR hypotheses embedded in ASR confusion networks obtained from target domain speech data. We explore different methods for training the RNN LMs to deal with the uncertain input sequences. The first method extends the cross-entropy objective into a Kullback–Leibler (KL) divergence based training loss, the second method formulates a training loss based on a hidden Markov model (HMM), and the third method performs training on paths sampled from the confusion networks. These methods are applied to limited data setups including telephone and meeting conversation datasets. Performance is evaluated under two settings wherein no manual transcriptions or a small amount of manual transcriptions are available to aid the training. Moreover, a model adaptation setting is also evaluated wherein the RNN LM is pre-trained on an out-of-domain conversational corpus. Overall the sampling method for training RNN LMs on ASR confusion networks performs the best, and results in up to 12% relative reduction in perplexity on the meeting dataset as compared to training on ASR 1-best hypotheses, without any manual transcriptions. However, the perplexity reductions do not translate into equivalent WER reductions. A detailed analysis of the perplexity reductions obtained by the different methods is performed in order to understand this effect.
Hyper Article en Lig... arrow_drop_down Computer Speech & LanguageArticle . 2024 . Peer-reviewedLicense: Elsevier TDMData sources: CrossrefHAL Descartes; INRIA a CCSD electronic archive server; Mémoires en Sciences de l'Information et de la CommunicationArticle . 2024License: CC BYadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.csl.2023.101555&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Hyper Article en Lig... arrow_drop_down Computer Speech & LanguageArticle . 2024 . Peer-reviewedLicense: Elsevier TDMData sources: CrossrefHAL Descartes; INRIA a CCSD electronic archive server; Mémoires en Sciences de l'Information et de la CommunicationArticle . 2024License: CC BYadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.csl.2023.101555&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type , Article 2024 Switzerland, United Kingdom, France, Netherlands, France, NetherlandsPublisher:Elsevier BV Funded by:EC | EU-AIMS, EC | AIMS-2-TRIALS, EC | BEAUTIPHUL MINDEC| EU-AIMS ,EC| AIMS-2-TRIALS ,EC| BEAUTIPHUL MINDLeyhausen, Johanna; Schäfer, Tim; Gurr, Caroline; Berg, Lisa M.; Seelemeyer, Hanna; Pretzsch, Charlotte M.; Loth, Eva; Oakley, Bethany; Buitelaar, Jan K.; Beckmann, Christian F.; Floris, Dorothea L.; Charman, Tony; Bourgeron, Thomas; Banaschewski, Tobias; Jones, Emily J.H.; Tillmann, Julian; Chatham, Chris; Murphy, Declan G.; Ecker, Christine; Ahmad, Jumana; Ambrosino, Sara; Auyeung, Bonnie; Banaschewski, Tobias; Baron-Cohen, Simon; Baumeister, Sarah; Beckmann, Christian F.; Bölte, Sven; Bourgeron, Thomas; Bours, Carsten; Brammer, Michael; Brandeis, Daniel; Brogna, Claudia; de Bruijn, Yvette; Buitelaar, Jan K.; Chakrabarti, Bhismadev; Charman, Tony; Cornelissen, Ineke; Crawley, Daisy; Dell’Acqua, Flavio; Dumas, Guillaume; Durston, Sarah; Ecker, Christine; Faulkner, Jessica; Frouin, Vincent; Garcés, Pilar; Goyard, David; Ham, Lindsay; Hayward, Hannah; Hipp, Joerg; Holt, Rosemary; Johnson, Mark H.; Jones, Emily J.H.; Kundu, Prantik; Lai, Meng-Chuan; D’ardhuy, Xavier Liogier; Lombardo, Michael V.; Loth, Eva; Lythgoe, David J.; Mandl, René; Marquand, Andre; Mason, Luke; Mennes, Maarten; Meyer-Lindenberg, Andreas; Moessnang, Carolin; Bast, Nico; Murphy, Declan G.M.; Oakley, Bethany; O’Dwyer, Laurence; Oldehinkel, Marianne; Oranje, Bob; Pandina, Gahan; Persico, Antonio M.; Ruggeri, Barbara; Ruigrok, Amber; Sabet, Jessica; Sacco, Roberto; San José Cáceres, Antonia; Simonoff, Emily; Spooren, Will; Tillmann, Julian; Toro, Roberto; Tost, Heike; Waldman, Jack; Williams, Steve C.R.; Wooldridge, Caroline; Zwiers, Marcel P.;pmid: 37348802
International audience; BackgroundAutism is a heterogeneous neurodevelopmental condition accompanied by differences in brain connectivity. Structural connectivity in autism has mainly been investigated within the white matter. However, many genetic variants associated with autism highlight genes related to synaptogenesis and axonal guidance, thus also implicating differences in intrinsic (i.e., gray matter) connections in autism. Intrinsic connections may be assessed in vivo via so-called intrinsic global and local wiring costs.MethodsHere, we examined intrinsic global and local wiring costs in the brain of 359 individuals with autism and 279 healthy control participants ages 6 to 30 years from the EU-AIMS LEAP (Longitudinal European Autism Project). FreeSurfer was used to derive surface mesh representations to compute the estimated length of connections required to wire the brain within the gray matter. Vertexwise between-group differences were assessed using a general linear model. A gene expression decoding analysis based on the Allen Human Brain Atlas was performed to link neuroanatomical differences to putative underpinnings.ResultsGroup differences in global and local wiring costs were predominantly observed in medial and lateral prefrontal brain regions, in inferior temporal regions, and at the left temporoparietal junction. The resulting neuroanatomical patterns were enriched for genes that had been previously implicated in the etiology of autism at genetic and transcriptomic levels.ConclusionsBased on intrinsic gray matter connectivity, the current study investigated the complex neuroanatomy of autism and linked between-group differences to putative genomic and/or molecular mechanisms to parse the heterogeneity of autism and provide targets for future subgrouping approaches.
King's Research Port... arrow_drop_down Zurich Open Repository and ArchiveOther literature type . 2024METIS Research Information System; Biological PsychiatryArticle . 2024 . Peer-reviewedLicense: Elsevier TDMadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu1 citations 1 popularity Average influence Average impulse Average Powered by BIP!download 17download downloads 17 Powered bymore_vert King's Research Port... arrow_drop_down Zurich Open Repository and ArchiveOther literature type . 2024METIS Research Information System; Biological PsychiatryArticle . 2024 . Peer-reviewedLicense: Elsevier TDMadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.biopsych.2023.06.010&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2024 FrancePublisher:Wiley Funded by:EC | G-StatisticsEC| G-StatisticsAuthors: Anna Calissano; Theodore Papadopoulo; Xavier Pennec; Samuel Deslauriers‐Gauthier;Anna Calissano; Theodore Papadopoulo; Xavier Pennec; Samuel Deslauriers‐Gauthier;doi: 10.1002/hbm.26554
AbstractEvery brain is unique, having its structural and functional organization shaped by both genetic and environmental factors over the course of its development. Brain image studies tend to produce results by averaging across a group of subjects, under the common assumption that it is possible to subdivide the cortex into homogeneous areas while maintaining a correspondence across subjects. We investigate this assumption: can the structural properties of a specific region of an atlas be assumed to be the same across subjects? This question is addressed by looking at the network representation of the brain, with nodes corresponding to brain regions and edges to their structural relationships. Using an unsupervised graph matching strategy, we align the structural connectomes of a set of healthy subjects, considering parcellations of different granularity, to understand the connectivity misalignment between regions. First, we compare the obtained permutations with four different algorithm initializations: Spatial Adjacency, Identity, Barycenter, and Random. Our results suggest that applying an alignment strategy improves the similarity across subjects when the number of parcels is above 100 and when using Spatial Adjacency and Identity initialization (the most plausible priors). Second, we characterize the obtained permutations, revealing that the majority of permutations happens between neighbors parcels. Lastly, we study the spatial distribution of the permutations. By visualizing the results on the cortex, we observe no clear spatial patterns on the permutations and all the regions across the context are mostly permuted with first and second order neighbors.
HAL Descartes; Hyper... arrow_drop_down HAL Descartes; Hyper Article en LigneOther literature type . Preprint . 2022Full-Text: https://hal.inria.fr/hal-03910761/documentHAL Descartes; INRIA a CCSD electronic archive server; Mémoires en Sciences de l'Information et de la CommunicationArticle . 2023License: CC BYadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/hbm.26554&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert HAL Descartes; Hyper... arrow_drop_down HAL Descartes; Hyper Article en LigneOther literature type . Preprint . 2022Full-Text: https://hal.inria.fr/hal-03910761/documentHAL Descartes; INRIA a CCSD electronic archive server; Mémoires en Sciences de l'Information et de la CommunicationArticle . 2023License: CC BYadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/hbm.26554&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2023 FrancePublisher:Institute of Electrical and Electronics Engineers (IEEE) Funded by:EC | POEMAEC| POEMAAuthors: Jie Wang; Corbinian Schlosser; Milan Korda; Victor Magron;Jie Wang; Corbinian Schlosser; Milan Korda; Victor Magron;In this paper, we develop a dynamical system counterpart to the term sparsity sum-of-squares (TSSOS) algorithm proposed for static polynomial optimization. This allows for computational savings and improved scalability while preserving convergence guarantees when sum-of-squares methods are applied to problems from dynamical systems, including the problems of approximating region of attraction, the maximum positively invariant set, and the global attractor. At its core, the method exploits the algebraic structure of the data, thereby complementing existing methods that exploit causality relations among the states of the dynamical system. The procedure encompasses sign symmetries of the dynamical system as was already revealed for polynomial optimization. Numerical examples demonstrate the efficiency of the approach in the presence of this type of sparsity. 7 pages, 4 figures. IEEE Transactions on Automatic Control (2023)
https://doi.org/10.4... arrow_drop_down IEEE Transactions on Automatic ControlArticle . 2023 . Peer-reviewedLicense: IEEE CopyrightData sources: CrossrefHyper Article en Ligne; Hal-DiderotOther literature type . Preprint . 2021add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1109/tac.2023.3293014&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert https://doi.org/10.4... arrow_drop_down IEEE Transactions on Automatic ControlArticle . 2023 . Peer-reviewedLicense: IEEE CopyrightData sources: CrossrefHyper Article en Ligne; Hal-DiderotOther literature type . Preprint . 2021add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1109/tac.2023.3293014&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Part of book or chapter of book , Other literature type 2023 FrancePublisher:Cambridge University Press (CUP) Funded by:EC | IPODD, EC | IMPACTEBU, EC | QUANTDISPOSITIONEC| IPODD ,EC| IMPACTEBU ,EC| QUANTDISPOSITIONAuthors: Fromage, Diane;Fromage, Diane;International audience; The creation of the Banking Union (BU) in 2012 represented an important change in the Economic and Monetary Union (EMU), and in the European Union (EU) in general. Indeed, it entailed the delegation of new competences in the areas of banking supervision and bank resolution to the EU level, and it demanded the creation of unique procedures and original governance mechanisms. It has no doubt represented a big step forward in the process of European integration as it is only the second area in which full integration is realized. At the same time, it has also certainly increased the existing level of complexity within the EU. This is the case among other reasons because euro area Member States are part of the BU, but membership to the BU is also open to the rest of the Member States. In fact, in 2020, Bulgaria and Croatia availed themselves of this possibility to join the BU without having adopted the common currency. By creating a third category of Member States next to the EU27 and those that belong to the euro area within the EMU, the BU added a new layer of differentiation in an already largely differentiated Union. [First lines]
https://doi.org/10.1... arrow_drop_down https://doi.org/10.1017/978100...Part of book or chapter of book . 2023 . Peer-reviewedLicense: Cambridge Core User AgreementData sources: CrossrefHAL Descartes; Mémoires en Sciences de l'Information et de la CommunicationPart of book or chapter of book . 2023License: CC BY NC NDadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert https://doi.org/10.1... arrow_drop_down https://doi.org/10.1017/978100...Part of book or chapter of book . 2023 . Peer-reviewedLicense: Cambridge Core User AgreementData sources: CrossrefHAL Descartes; Mémoires en Sciences de l'Information et de la CommunicationPart of book or chapter of book . 2023License: CC BY NC NDadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Conference object , Preprint , Report , Other literature type 2023 France, GermanyPublisher:Society for Industrial & Applied Mathematics (SIAM) Funded by:EC | SYSTEMATICGRAPH, ANR | DISTANCIAEC| SYSTEMATICGRAPH ,ANR| DISTANCIAJérémie Chalopin; Victor Chepoi; Fionn Mc Inerney; Sébastien Ratel; Yann Vaxès;One of the open problems in machine learning is whether any set-family of VC-dimension $d$ admits a sample compression scheme of size~$O(d)$. In this paper, we study this problem for balls in graphs. For balls of arbitrary radius $r$, we design proper sample compression schemes of size $2$ for trees, of size $3$ for cycles, of size $4$ for interval graphs, of size $6$ for trees of cycles, and of size $22$ for cube-free median graphs. For balls of a given radius, we design proper labeled sample compression schemes of size $2$ for trees and of size $4$ for interval graphs. We also design approximate sample compression schemes of size 2 for balls of $\delta$-hyperbolic graphs. Comment: 26 pages, 9 figures
arXiv.org e-Print Ar... arrow_drop_down Dagstuhl Research Online Publication ServerOther literature type . 2022License: CC BYData sources: Dagstuhl Research Online Publication ServerHAL AMU; Mémoires en Sciences de l'Information et de la CommunicationConference object . 2022License: CC BYFull-Text: https://hal.science/hal-03854487/documenthttps://doi.org/10.48550/arxiv...Article . 2022License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert arXiv.org e-Print Ar... arrow_drop_down Dagstuhl Research Online Publication ServerOther literature type . 2022License: CC BYData sources: Dagstuhl Research Online Publication ServerHAL AMU; Mémoires en Sciences de l'Information et de la CommunicationConference object . 2022License: CC BYFull-Text: https://hal.science/hal-03854487/documenthttps://doi.org/10.48550/arxiv...Article . 2022License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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description Publicationkeyboard_double_arrow_right Article , Preprint , Other literature type 2024 FrancePublisher:Cellule MathDoc/CEDRAM Funded by:EC | NUHGD, ANR | ISDEECEC| NUHGD ,ANR| ISDEECAuthors: Buzzi, Jérôme; Kloeckner, Benoît,; Leplaideur, Renaud;Buzzi, Jérôme; Kloeckner, Benoît,; Leplaideur, Renaud;We define a nonlinear thermodynamical formalism which translates into dynamical system theory the statistical mechanics of generalized mean-field models, extending investigation of the quadratic case by Leplaideur and Watbled. Under suitable conditions, we prove a variational principle for the nonlinear pressure and we characterize the nonlinear equilibrium measures and relate them to specific classical equilibrium measures. In this non-linear thermodynamical formalism, which can, e.g., model mean-field approximation of large systems, several kind of phase transitions appear, some of which cannot happen in the linear case. We use our correspondence between non-linear and linear equilibrium measures to further the understanding of phase transitions, { both in previously known cases (Curie-Weiss and Potts models) and in} new examples (metastable phase transition). Finally, we apply some of the ideas introduced to the classical thermodynamical formalism, proving that freezing phase transitions can occur over \emph{any} zero-entropy invariant compact subset of the phase space. 44 pages several very nice figures
Annales Henri Lebesg... arrow_drop_down Mémoires en Sciences de l'Information et de la CommunicationPreprint . 2021https://doi.org/10.48550/arxiv...Article . 2020License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Annales Henri Lebesg... arrow_drop_down Mémoires en Sciences de l'Information et de la CommunicationPreprint . 2021https://doi.org/10.48550/arxiv...Article . 2020License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2024 Norway, FrancePublisher:Cellule MathDoc/CEDRAM Funded by:EC | POEMAEC| POEMAAuthors: Debus, Sebastian; Moustrou, Philippe; Riener, Cordian; Verdure, Hugues;Debus, Sebastian; Moustrou, Philippe; Riener, Cordian; Verdure, Hugues;Specht polynomials classically realize the irreducible representations of the symmetric group. The ideals defined by these polynomials provide a strong connection with the combinatorics of Young tableaux and have been intensively studied by several authors. We initiate similar investigations for the ideals defined by the Specht polynomials associated to the hyperoctahedral group $B_n$. We introduce a bidominance order on bipartitions which describes the poset of inclusions of these ideals and study algebraic consequences on general $B_n$-invariant ideals and varieties, which can lead to computational simplifications. Comment: Some revisions due to comments of referees
Algebraic Combinator... arrow_drop_down https://doi.org/10.48550/arxiv...Article . 2022License: arXiv Non-Exclusive DistributionData sources: DataciteHAL Descartes; Hyper Article en Ligne; Mémoires en Sciences de l'Information et de la CommunicationOther literature type . Preprint . 2022add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Algebraic Combinator... arrow_drop_down https://doi.org/10.48550/arxiv...Article . 2022License: arXiv Non-Exclusive DistributionData sources: DataciteHAL Descartes; Hyper Article en Ligne; Mémoires en Sciences de l'Information et de la CommunicationOther literature type . Preprint . 2022add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5802/alco.316&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Preprint , Article , Other literature type 2024 FrancePublisher:Elsevier BV Funded by:EC | POEMA, NSERC, ANR | SESAME +1 projectsEC| POEMA ,NSERC ,ANR| SESAME ,ANR| ECARPAuthors: Rémi Prébet; Mohab Safey El Din; Éric Schost;Rémi Prébet; Mohab Safey El Din; Éric Schost;Answering connectivity queries in real algebraic sets is a fundamental problem in effective real algebraic geometry that finds many applications in e.g. robotics where motion planning issues are topical. This computational problem is tackled through the computation of so-called roadmaps which are real algebraic subsets of the set V under study, of dimension at most one, and which have a connected intersection with all semi-algebraically connected components of V. Algorithms for computing roadmaps rely on statements establishing connectivity properties of some well-chosen subsets of V , assuming that V is bounded. In this paper, we extend such connectivity statements by dropping the boundedness assumption on V. This exploits properties of so-called generalized polar varieties, which are critical loci of V for some well-chosen polynomial maps. Comment: 26 pages, 23 figures
arXiv.org e-Print Ar... arrow_drop_down Journal of Symbolic ComputationArticle . 2024 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefhttps://doi.org/10.48550/arxiv...Article . 2022License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jsc.2023.102234&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert arXiv.org e-Print Ar... arrow_drop_down Journal of Symbolic ComputationArticle . 2024 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefhttps://doi.org/10.48550/arxiv...Article . 2022License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jsc.2023.102234&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Preprint 2024 FrancePublisher:International Press of Boston Funded by:EC | SOS, EC | IPFLOWEC| SOS ,EC| IPFLOWAuthors: Bonthonneau, Yannick Guedes; Guillarmou, Colin; Jézéquel, Malo;Bonthonneau, Yannick Guedes; Guillarmou, Colin; Jézéquel, Malo;For analytic negatively curved Riemannian manifold with analytic strictly convex boundary, we show that the scattering map for the geodesic flow determines the manifold up to isometry. In particular one recovers both the topology and the metric. More generally, our result holds in the analytic category under the no conjugate point and hyperbolic trapped sets assumptions. Comment: v2: added Propositions 2.6 and 2.7 and Appendix B v3: Electronic copy of final peer-reviewed manuscript accepted for publication
arXiv.org e-Print Ar... arrow_drop_down https://doi.org/10.48550/arxiv...Article . 2022License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.4310/cjm.2024.v12.n1.a2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert arXiv.org e-Print Ar... arrow_drop_down https://doi.org/10.48550/arxiv...Article . 2022License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.4310/cjm.2024.v12.n1.a2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint , Other literature type 2024 FrancePublisher:Elsevier BV Funded by:EC | COMPRISEEC| COMPRISEAuthors: Imran Sheikh; Emmanuel Vincent; Irina Illina;Imran Sheikh; Emmanuel Vincent; Irina Illina;International audience; Training domain-specific automatic speech recognition (ASR) systems requires a suitable amount of data comprising the target domain. In several scenarios, such as early development stages, privacy-critical applications, or under-resourced languages, only a limited amount of in-domain speech data and an even smaller amount of manual text transcriptions, if any, are available. This motivates the study of ASR language model (LM) training on a limited amount of in-domain speech data. Early works have attempted training of n-gram LMs from ASR N-best lists and lattices but training and adaptation of recurrent neural network (RNN) LMs from ASR transcripts has not received attention. In this work, we study training and adaptation of RNN LMs using alternate, uncertain ASR hypotheses embedded in ASR confusion networks obtained from target domain speech data. We explore different methods for training the RNN LMs to deal with the uncertain input sequences. The first method extends the cross-entropy objective into a Kullback–Leibler (KL) divergence based training loss, the second method formulates a training loss based on a hidden Markov model (HMM), and the third method performs training on paths sampled from the confusion networks. These methods are applied to limited data setups including telephone and meeting conversation datasets. Performance is evaluated under two settings wherein no manual transcriptions or a small amount of manual transcriptions are available to aid the training. Moreover, a model adaptation setting is also evaluated wherein the RNN LM is pre-trained on an out-of-domain conversational corpus. Overall the sampling method for training RNN LMs on ASR confusion networks performs the best, and results in up to 12% relative reduction in perplexity on the meeting dataset as compared to training on ASR 1-best hypotheses, without any manual transcriptions. However, the perplexity reductions do not translate into equivalent WER reductions. A detailed analysis of the perplexity reductions obtained by the different methods is performed in order to understand this effect.
Hyper Article en Lig... arrow_drop_down Computer Speech & LanguageArticle . 2024 . Peer-reviewedLicense: Elsevier TDMData sources: CrossrefHAL Descartes; INRIA a CCSD electronic archive server; Mémoires en Sciences de l'Information et de la CommunicationArticle . 2024License: CC BYadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Hyper Article en Lig... arrow_drop_down Computer Speech & LanguageArticle . 2024 . Peer-reviewedLicense: Elsevier TDMData sources: CrossrefHAL Descartes; INRIA a CCSD electronic archive server; Mémoires en Sciences de l'Information et de la CommunicationArticle . 2024License: CC BYadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type , Article 2024 Switzerland, United Kingdom, France, Netherlands, France, NetherlandsPublisher:Elsevier BV Funded by:EC | EU-AIMS, EC | AIMS-2-TRIALS, EC | BEAUTIPHUL MINDEC| EU-AIMS ,EC| AIMS-2-TRIALS ,EC| BEAUTIPHUL MINDLeyhausen, Johanna; Schäfer, Tim; Gurr, Caroline; Berg, Lisa M.; Seelemeyer, Hanna; Pretzsch, Charlotte M.; Loth, Eva; Oakley, Bethany; Buitelaar, Jan K.; Beckmann, Christian F.; Floris, Dorothea L.; Charman, Tony; Bourgeron, Thomas; Banaschewski, Tobias; Jones, Emily J.H.; Tillmann, Julian; Chatham, Chris; Murphy, Declan G.; Ecker, Christine; Ahmad, Jumana; Ambrosino, Sara; Auyeung, Bonnie; Banaschewski, Tobias; Baron-Cohen, Simon; Baumeister, Sarah; Beckmann, Christian F.; Bölte, Sven; Bourgeron, Thomas; Bours, Carsten; Brammer, Michael; Brandeis, Daniel; Brogna, Claudia; de Bruijn, Yvette; Buitelaar, Jan K.; Chakrabarti, Bhismadev; Charman, Tony; Cornelissen, Ineke; Crawley, Daisy; Dell’Acqua, Flavio; Dumas, Guillaume; Durston, Sarah; Ecker, Christine; Faulkner, Jessica; Frouin, Vincent; Garcés, Pilar; Goyard, David; Ham, Lindsay; Hayward, Hannah; Hipp, Joerg; Holt, Rosemary; Johnson, Mark H.; Jones, Emily J.H.; Kundu, Prantik; Lai, Meng-Chuan; D’ardhuy, Xavier Liogier; Lombardo, Michael V.; Loth, Eva; Lythgoe, David J.; Mandl, René; Marquand, Andre; Mason, Luke; Mennes, Maarten; Meyer-Lindenberg, Andreas; Moessnang, Carolin; Bast, Nico; Murphy, Declan G.M.; Oakley, Bethany; O’Dwyer, Laurence; Oldehinkel, Marianne; Oranje, Bob; Pandina, Gahan; Persico, Antonio M.; Ruggeri, Barbara; Ruigrok, Amber; Sabet, Jessica; Sacco, Roberto; San José Cáceres, Antonia; Simonoff, Emily; Spooren, Will; Tillmann, Julian; Toro, Roberto; Tost, Heike; Waldman, Jack; Williams, Steve C.R.; Wooldridge, Caroline; Zwiers, Marcel P.;pmid: 37348802
International audience; BackgroundAutism is a heterogeneous neurodevelopmental condition accompanied by differences in brain connectivity. Structural connectivity in autism has mainly been investigated within the white matter. However, many genetic variants associated with autism highlight genes related to synaptogenesis and axonal guidance, thus also implicating differences in intrinsic (i.e., gray matter) connections in autism. Intrinsic connections may be assessed in vivo via so-called intrinsic global and local wiring costs.MethodsHere, we examined intrinsic global and local wiring costs in the brain of 359 individuals with autism and 279 healthy control participants ages 6 to 30 years from the EU-AIMS LEAP (Longitudinal European Autism Project). FreeSurfer was used to derive surface mesh representations to compute the estimated length of connections required to wire the brain within the gray matter. Vertexwise between-group differences were assessed using a general linear model. A gene expression decoding analysis based on the Allen Human Brain Atlas was performed to link neuroanatomical differences to putative underpinnings.ResultsGroup differences in global and local wiring costs were predominantly observed in medial and lateral prefrontal brain regions, in inferior temporal regions, and at the left temporoparietal junction. The resulting neuroanatomical patterns were enriched for genes that had been previously implicated in the etiology of autism at genetic and transcriptomic levels.ConclusionsBased on intrinsic gray matter connectivity, the current study investigated the complex neuroanatomy of autism and linked between-group differences to putative genomic and/or molecular mechanisms to parse the heterogeneity of autism and provide targets for future subgrouping approaches.
King's Research Port... arrow_drop_down Zurich Open Repository and ArchiveOther literature type . 2024METIS Research Information System; Biological PsychiatryArticle . 2024 . Peer-reviewedLicense: Elsevier TDMadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu1 citations 1 popularity Average influence Average impulse Average Powered by BIP!download 17download downloads 17 Powered bymore_vert King's Research Port... arrow_drop_down Zurich Open Repository and ArchiveOther literature type . 2024METIS Research Information System; Biological PsychiatryArticle . 2024 . Peer-reviewedLicense: Elsevier TDMadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2024 FrancePublisher:Wiley Funded by:EC | G-StatisticsEC| G-StatisticsAuthors: Anna Calissano; Theodore Papadopoulo; Xavier Pennec; Samuel Deslauriers‐Gauthier;Anna Calissano; Theodore Papadopoulo; Xavier Pennec; Samuel Deslauriers‐Gauthier;doi: 10.1002/hbm.26554
AbstractEvery brain is unique, having its structural and functional organization shaped by both genetic and environmental factors over the course of its development. Brain image studies tend to produce results by averaging across a group of subjects, under the common assumption that it is possible to subdivide the cortex into homogeneous areas while maintaining a correspondence across subjects. We investigate this assumption: can the structural properties of a specific region of an atlas be assumed to be the same across subjects? This question is addressed by looking at the network representation of the brain, with nodes corresponding to brain regions and edges to their structural relationships. Using an unsupervised graph matching strategy, we align the structural connectomes of a set of healthy subjects, considering parcellations of different granularity, to understand the connectivity misalignment between regions. First, we compare the obtained permutations with four different algorithm initializations: Spatial Adjacency, Identity, Barycenter, and Random. Our results suggest that applying an alignment strategy improves the similarity across subjects when the number of parcels is above 100 and when using Spatial Adjacency and Identity initialization (the most plausible priors). Second, we characterize the obtained permutations, revealing that the majority of permutations happens between neighbors parcels. Lastly, we study the spatial distribution of the permutations. By visualizing the results on the cortex, we observe no clear spatial patterns on the permutations and all the regions across the context are mostly permuted with first and second order neighbors.
HAL Descartes; Hyper... arrow_drop_down HAL Descartes; Hyper Article en LigneOther literature type . Preprint . 2022Full-Text: https://hal.inria.fr/hal-03910761/documentHAL Descartes; INRIA a CCSD electronic archive server; Mémoires en Sciences de l'Information et de la CommunicationArticle . 2023License: CC BYadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert HAL Descartes; Hyper... arrow_drop_down HAL Descartes; Hyper Article en LigneOther literature type . Preprint . 2022Full-Text: https://hal.inria.fr/hal-03910761/documentHAL Descartes; INRIA a CCSD electronic archive server; Mémoires en Sciences de l'Information et de la CommunicationArticle . 2023License: CC BYadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2023 FrancePublisher:Institute of Electrical and Electronics Engineers (IEEE) Funded by:EC | POEMAEC| POEMAAuthors: Jie Wang; Corbinian Schlosser; Milan Korda; Victor Magron;Jie Wang; Corbinian Schlosser; Milan Korda; Victor Magron;In this paper, we develop a dynamical system counterpart to the term sparsity sum-of-squares (TSSOS) algorithm proposed for static polynomial optimization. This allows for computational savings and improved scalability while preserving convergence guarantees when sum-of-squares methods are applied to problems from dynamical systems, including the problems of approximating region of attraction, the maximum positively invariant set, and the global attractor. At its core, the method exploits the algebraic structure of the data, thereby complementing existing methods that exploit causality relations among the states of the dynamical system. The procedure encompasses sign symmetries of the dynamical system as was already revealed for polynomial optimization. Numerical examples demonstrate the efficiency of the approach in the presence of this type of sparsity. 7 pages, 4 figures. IEEE Transactions on Automatic Control (2023)
https://doi.org/10.4... arrow_drop_down IEEE Transactions on Automatic ControlArticle . 2023 . Peer-reviewedLicense: IEEE CopyrightData sources: CrossrefHyper Article en Ligne; Hal-DiderotOther literature type . Preprint . 2021add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1109/tac.2023.3293014&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert https://doi.org/10.4... arrow_drop_down IEEE Transactions on Automatic ControlArticle . 2023 . Peer-reviewedLicense: IEEE CopyrightData sources: CrossrefHyper Article en Ligne; Hal-DiderotOther literature type . Preprint . 2021add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1109/tac.2023.3293014&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Part of book or chapter of book , Other literature type 2023 FrancePublisher:Cambridge University Press (CUP) Funded by:EC | IPODD, EC | IMPACTEBU, EC | QUANTDISPOSITIONEC| IPODD ,EC| IMPACTEBU ,EC| QUANTDISPOSITIONAuthors: Fromage, Diane;Fromage, Diane;International audience; The creation of the Banking Union (BU) in 2012 represented an important change in the Economic and Monetary Union (EMU), and in the European Union (EU) in general. Indeed, it entailed the delegation of new competences in the areas of banking supervision and bank resolution to the EU level, and it demanded the creation of unique procedures and original governance mechanisms. It has no doubt represented a big step forward in the process of European integration as it is only the second area in which full integration is realized. At the same time, it has also certainly increased the existing level of complexity within the EU. This is the case among other reasons because euro area Member States are part of the BU, but membership to the BU is also open to the rest of the Member States. In fact, in 2020, Bulgaria and Croatia availed themselves of this possibility to join the BU without having adopted the common currency. By creating a third category of Member States next to the EU27 and those that belong to the euro area within the EMU, the BU added a new layer of differentiation in an already largely differentiated Union. [First lines]
https://doi.org/10.1... arrow_drop_down https://doi.org/10.1017/978100...Part of book or chapter of book . 2023 . Peer-reviewedLicense: Cambridge Core User AgreementData sources: CrossrefHAL Descartes; Mémoires en Sciences de l'Information et de la CommunicationPart of book or chapter of book . 2023License: CC BY NC NDadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1017/9781009228800.008&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert https://doi.org/10.1... arrow_drop_down https://doi.org/10.1017/978100...Part of book or chapter of book . 2023 . Peer-reviewedLicense: Cambridge Core User AgreementData sources: CrossrefHAL Descartes; Mémoires en Sciences de l'Information et de la CommunicationPart of book or chapter of book . 2023License: CC BY NC NDadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1017/9781009228800.008&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Conference object , Preprint , Report , Other literature type 2023 France, GermanyPublisher:Society for Industrial & Applied Mathematics (SIAM) Funded by:EC | SYSTEMATICGRAPH, ANR | DISTANCIAEC| SYSTEMATICGRAPH ,ANR| DISTANCIAJérémie Chalopin; Victor Chepoi; Fionn Mc Inerney; Sébastien Ratel; Yann Vaxès;One of the open problems in machine learning is whether any set-family of VC-dimension $d$ admits a sample compression scheme of size~$O(d)$. In this paper, we study this problem for balls in graphs. For balls of arbitrary radius $r$, we design proper sample compression schemes of size $2$ for trees, of size $3$ for cycles, of size $4$ for interval graphs, of size $6$ for trees of cycles, and of size $22$ for cube-free median graphs. For balls of a given radius, we design proper labeled sample compression schemes of size $2$ for trees and of size $4$ for interval graphs. We also design approximate sample compression schemes of size 2 for balls of $\delta$-hyperbolic graphs. Comment: 26 pages, 9 figures
arXiv.org e-Print Ar... arrow_drop_down Dagstuhl Research Online Publication ServerOther literature type . 2022License: CC BYData sources: Dagstuhl Research Online Publication ServerHAL AMU; Mémoires en Sciences de l'Information et de la CommunicationConference object . 2022License: CC BYFull-Text: https://hal.science/hal-03854487/documenthttps://doi.org/10.48550/arxiv...Article . 2022License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1137/22m1527817&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert arXiv.org e-Print Ar... arrow_drop_down Dagstuhl Research Online Publication ServerOther literature type . 2022License: CC BYData sources: Dagstuhl Research Online Publication ServerHAL AMU; Mémoires en Sciences de l'Information et de la CommunicationConference object . 2022License: CC BYFull-Text: https://hal.science/hal-03854487/documenthttps://doi.org/10.48550/arxiv...Article . 2022License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1137/22m1527817&type=result"></script>'); --> </script>
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