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description Publicationkeyboard_double_arrow_right Article , Conference object 2016 France EnglishPublisher:Diagnostic Pathology Traore, K.; Daniel, C.; Jaulent, M.-C.; Schrader, T.; Racoceanu, Daniel; Kergosien, Y.;Introduction/ Background Recently, histopathology has seen the introduction of several tools such as slide scanners and virtual slide technologies, creating the conditions for broader adoption of computer aided diagnosis based on whole slide images (WSI) to reduce observation variability between pathologists. This change brings up a number of new scientific challenges such as the sustainable management of the semantics associated to the grading process, image analysis and annotation in order to facilitate pre-filled report generation. The College of American Pathologists cancer checklists and protocols (CAP-CC&P) [1] are reference resources for complete Anatomic Pathology (AP) reporting of malignant tumors. Current terminology systems for AP structured reporting gather terms of very different granularity [2][3] and have not yet been compiled in a systematic approach. Semantic data models are formal representations of knowledge in a given domain that allow both human users and software applications to consistently and accurately interpret domain terminology [4][5]. Aims Our objective is to i) analyze the histopathological knowledge for breast cancer grading available in the reference CAP CC&P and ii) to build a sustainable formal representation of this knowledge based on existing bio- medical ontologies in NCBO Bioportal [6][7] and UMLS semantic types [8]. Methods Our methodology was first experimented in the context of two cancer grading methods for invasive (Nottinghamsystem) and ductal in situ breast carcinoma. A corpus consisting of 5 texts or “notes” was first selected by an AP expert from the two corresponding CAP CC&Ps. From each note the expert also extracted a list of keyconcepts to be used as a “gold standard”. We used NCBO Annotator [9] for automatic analysis of the corpus. Annotator supports the biomedical community in tagging raw texts automatically with concepts from relevant biomedical ontology and terminology repositories. The methodology used consists in: i) Automatic textual analysis and annotation of the corpus based on the 417 ontologies available on the NCBO platform. We selected a subset of ontologies based on the number of identified concepts and evaluated their relevancy with respect to the gold standard. ii) Semantic modeling of the automatically extracted concepts into a sustainable formal representation based on their UMLS semantic types. Results We identified NCIT, SNOMED-CT, NCI CaDSR Values set, LOINC and PathLex as the ontologies providing the highest number of annotated concepts. Table 1 shows as percentages the coverages of the concepts of each note by the annotations of the 5 reference ontologies. Percentages can add to more than 100 for a single note due to the possible overlap in ontologies coverages. Table 2 uses the same format when only concepts from the gold standards are counted to quantify annotations. From the list of extracted concepts, we made a preliminary formal representation of the histopathological knowledge based on the UMLS semantic types of concepts. Figure 1 shows the so proposed semantic modeling in the context of tubular differentiation. The novelty of this approach is the federation of the knowledge issued from different sources (CAP CC&P, NCBO ontologies and UMLS Metathesaurus) and the sustainable management of the associated semantics. This opens the perspective of building an AP observation ontology that will allow an accurate representation of AP reports understandable by both human and software applications. Diagnostic Pathology, Vol 1 No 8 (2016): 13. European Congress on Digital Pathology
Fachrepositorium Leb... arrow_drop_down Fachrepositorium LebenswissenschaftenConference object . 2016License: CC BY SAData sources: Fachrepositorium LebenswissenschaftenHAL - UPEC / UPEM; HAL-Inserm; Mémoires en Sciences de l'Information et de la Communication; HAL-UPMC; Hal-DiderotArticle . 2016License: CC BY SAadd 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 Routesgold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Fachrepositorium Leb... arrow_drop_down Fachrepositorium LebenswissenschaftenConference object . 2016License: CC BY SAData sources: Fachrepositorium LebenswissenschaftenHAL - UPEC / UPEM; HAL-Inserm; Mémoires en Sciences de l'Information et de la Communication; HAL-UPMC; Hal-DiderotArticle . 2016License: CC BY SAadd 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 2018 United Kingdom, France EnglishPublisher:HAL CCSD Funded by:EC | CENDARIEC| CENDARINadia Boukhelifa; Michael Bryant; Natasa Bulatovic; Ivan Čukić; Jean-Daniel Fekete; Milica Knežević; Jörg Lehmann; David I. Stuart; Carsten Thiel;doi: 10.1145/3092906
International audience; The CENDARI infrastructure is a research-supporting platform designed to provide tools for transnational historical research, focusing on two topics: medieval culture and World War I. It exposes to the end users modern Web-based tools relying on a sophisticated infrastructure to collect, enrich, annotate, and search through large document corpora. Supporting researchers in their daily work is a novel concern for infrastructures. We describe how we gathered requirements through multiple methods to understand historians' needs and derive an abstract workflow to support them. We then outline the tools that we have built, tying their technical descriptions to the user requirements. The main tools are the note-taking environment and its faceted search capabilities; the data integration platform including the Data API, supporting semantic enrichment through entity recognition; and the environment supporting the software development processes throughout the project to keep both technical partners and researchers in the loop. The outcomes are technical together with new resources developed and gathered, and the research workflow that has been described and documented.
OpenAIRE arrow_drop_down Journal on Computing and Cultural HeritageArticle . 2018 . Peer-reviewedLicense: ACM Copyright PoliciesData sources: CrossrefHal-DiderotArticle . 2018License: CC BYFull-Text: https://hal.inria.fr/hal-01523102v2/documentData sources: Hal-DiderotHAL - UPEC / UPEM; HAL-Pasteur; HAL-InsermArticle . 2018License: CC BYFull-Text: https://hal.inria.fr/hal-01523102v2/documentadd 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=10.1145/3092906&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid more_vert OpenAIRE arrow_drop_down Journal on Computing and Cultural HeritageArticle . 2018 . Peer-reviewedLicense: ACM Copyright PoliciesData sources: CrossrefHal-DiderotArticle . 2018License: CC BYFull-Text: https://hal.inria.fr/hal-01523102v2/documentData sources: Hal-DiderotHAL - UPEC / UPEM; HAL-Pasteur; HAL-InsermArticle . 2018License: CC BYFull-Text: https://hal.inria.fr/hal-01523102v2/documentadd 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=10.1145/3092906&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2017 France English Funded by:EC | CLOVEREC| CLOVERSchiffer, J; Hans, CA; Kral, T; Ortega, R; Raisch, J;International audience; Clock drift in digital controllers is of great relevance in many applications. Since almost all real clocks exhibit drifts, this applies in particular to networks composed of several individual units, each of which being operated with its individual clock. In the present work, we demonstrate via extensive experiments on a microgrid in the megawatt-range that clock drifts may impair frequency synchronisation in low-inertia power systems. The experiments also show that-in the absence of a common clock-the standard model of an inverter as an ideal voltage source does not capture this phenomenon. As a consequence, we derive a suitably modified model of an inverter-interfaced unit that incorporates the phenomenon of clock drifts. By using the derived model, we investigate the effects of clock drifts on the performance of droop-controlled grid-forming inverters with regard to frequency synchronisation and active power sharing. The modelling and analysis is validated via extensive experiments on a microgrid in the megawatt-range. Index Terms-Smart grid applications, low-inertia power systems, microgrids, grid-forming inverters, droop control, power sharing.
CORE (RIOXX-UK Aggre... arrow_drop_down https://doi.org/10.1109/TIE.20...Other literature type . Article . 2016 . Peer-reviewedadd 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/tie.2016.2638805&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 27 citations 27 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!visibility 10visibility views 10 download downloads 321 Powered bymore_vert CORE (RIOXX-UK Aggre... arrow_drop_down https://doi.org/10.1109/TIE.20...Other literature type . Article . 2016 . Peer-reviewedadd 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/tie.2016.2638805&type=result"></script>'); --> </script>
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description Publicationkeyboard_double_arrow_right Article , Conference object 2016 France EnglishPublisher:Diagnostic Pathology Traore, K.; Daniel, C.; Jaulent, M.-C.; Schrader, T.; Racoceanu, Daniel; Kergosien, Y.;Introduction/ Background Recently, histopathology has seen the introduction of several tools such as slide scanners and virtual slide technologies, creating the conditions for broader adoption of computer aided diagnosis based on whole slide images (WSI) to reduce observation variability between pathologists. This change brings up a number of new scientific challenges such as the sustainable management of the semantics associated to the grading process, image analysis and annotation in order to facilitate pre-filled report generation. The College of American Pathologists cancer checklists and protocols (CAP-CC&P) [1] are reference resources for complete Anatomic Pathology (AP) reporting of malignant tumors. Current terminology systems for AP structured reporting gather terms of very different granularity [2][3] and have not yet been compiled in a systematic approach. Semantic data models are formal representations of knowledge in a given domain that allow both human users and software applications to consistently and accurately interpret domain terminology [4][5]. Aims Our objective is to i) analyze the histopathological knowledge for breast cancer grading available in the reference CAP CC&P and ii) to build a sustainable formal representation of this knowledge based on existing bio- medical ontologies in NCBO Bioportal [6][7] and UMLS semantic types [8]. Methods Our methodology was first experimented in the context of two cancer grading methods for invasive (Nottinghamsystem) and ductal in situ breast carcinoma. A corpus consisting of 5 texts or “notes” was first selected by an AP expert from the two corresponding CAP CC&Ps. From each note the expert also extracted a list of keyconcepts to be used as a “gold standard”. We used NCBO Annotator [9] for automatic analysis of the corpus. Annotator supports the biomedical community in tagging raw texts automatically with concepts from relevant biomedical ontology and terminology repositories. The methodology used consists in: i) Automatic textual analysis and annotation of the corpus based on the 417 ontologies available on the NCBO platform. We selected a subset of ontologies based on the number of identified concepts and evaluated their relevancy with respect to the gold standard. ii) Semantic modeling of the automatically extracted concepts into a sustainable formal representation based on their UMLS semantic types. Results We identified NCIT, SNOMED-CT, NCI CaDSR Values set, LOINC and PathLex as the ontologies providing the highest number of annotated concepts. Table 1 shows as percentages the coverages of the concepts of each note by the annotations of the 5 reference ontologies. Percentages can add to more than 100 for a single note due to the possible overlap in ontologies coverages. Table 2 uses the same format when only concepts from the gold standards are counted to quantify annotations. From the list of extracted concepts, we made a preliminary formal representation of the histopathological knowledge based on the UMLS semantic types of concepts. Figure 1 shows the so proposed semantic modeling in the context of tubular differentiation. The novelty of this approach is the federation of the knowledge issued from different sources (CAP CC&P, NCBO ontologies and UMLS Metathesaurus) and the sustainable management of the associated semantics. This opens the perspective of building an AP observation ontology that will allow an accurate representation of AP reports understandable by both human and software applications. Diagnostic Pathology, Vol 1 No 8 (2016): 13. European Congress on Digital Pathology
Fachrepositorium Leb... arrow_drop_down Fachrepositorium LebenswissenschaftenConference object . 2016License: CC BY SAData sources: Fachrepositorium LebenswissenschaftenHAL - UPEC / UPEM; HAL-Inserm; Mémoires en Sciences de l'Information et de la Communication; HAL-UPMC; Hal-DiderotArticle . 2016License: CC BY SAadd 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=10.17629/www.diagnosticpathology.eu-2016-8:154&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesgold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Fachrepositorium Leb... arrow_drop_down Fachrepositorium LebenswissenschaftenConference object . 2016License: CC BY SAData sources: Fachrepositorium LebenswissenschaftenHAL - UPEC / UPEM; HAL-Inserm; Mémoires en Sciences de l'Information et de la Communication; HAL-UPMC; Hal-DiderotArticle . 2016License: CC BY SAadd 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=10.17629/www.diagnosticpathology.eu-2016-8:154&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2018 United Kingdom, France EnglishPublisher:HAL CCSD Funded by:EC | CENDARIEC| CENDARINadia Boukhelifa; Michael Bryant; Natasa Bulatovic; Ivan Čukić; Jean-Daniel Fekete; Milica Knežević; Jörg Lehmann; David I. Stuart; Carsten Thiel;doi: 10.1145/3092906
International audience; The CENDARI infrastructure is a research-supporting platform designed to provide tools for transnational historical research, focusing on two topics: medieval culture and World War I. It exposes to the end users modern Web-based tools relying on a sophisticated infrastructure to collect, enrich, annotate, and search through large document corpora. Supporting researchers in their daily work is a novel concern for infrastructures. We describe how we gathered requirements through multiple methods to understand historians' needs and derive an abstract workflow to support them. We then outline the tools that we have built, tying their technical descriptions to the user requirements. The main tools are the note-taking environment and its faceted search capabilities; the data integration platform including the Data API, supporting semantic enrichment through entity recognition; and the environment supporting the software development processes throughout the project to keep both technical partners and researchers in the loop. The outcomes are technical together with new resources developed and gathered, and the research workflow that has been described and documented.
OpenAIRE arrow_drop_down Journal on Computing and Cultural HeritageArticle . 2018 . Peer-reviewedLicense: ACM Copyright PoliciesData sources: CrossrefHal-DiderotArticle . 2018License: CC BYFull-Text: https://hal.inria.fr/hal-01523102v2/documentData sources: Hal-DiderotHAL - UPEC / UPEM; HAL-Pasteur; HAL-InsermArticle . 2018License: CC BYFull-Text: https://hal.inria.fr/hal-01523102v2/documentadd 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=10.1145/3092906&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid more_vert OpenAIRE arrow_drop_down Journal on Computing and Cultural HeritageArticle . 2018 . Peer-reviewedLicense: ACM Copyright PoliciesData sources: CrossrefHal-DiderotArticle . 2018License: CC BYFull-Text: https://hal.inria.fr/hal-01523102v2/documentData sources: Hal-DiderotHAL - UPEC / UPEM; HAL-Pasteur; HAL-InsermArticle . 2018License: CC BYFull-Text: https://hal.inria.fr/hal-01523102v2/documentadd 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=10.1145/3092906&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2017 France English Funded by:EC | CLOVEREC| CLOVERSchiffer, J; Hans, CA; Kral, T; Ortega, R; Raisch, J;International audience; Clock drift in digital controllers is of great relevance in many applications. Since almost all real clocks exhibit drifts, this applies in particular to networks composed of several individual units, each of which being operated with its individual clock. In the present work, we demonstrate via extensive experiments on a microgrid in the megawatt-range that clock drifts may impair frequency synchronisation in low-inertia power systems. The experiments also show that-in the absence of a common clock-the standard model of an inverter as an ideal voltage source does not capture this phenomenon. As a consequence, we derive a suitably modified model of an inverter-interfaced unit that incorporates the phenomenon of clock drifts. By using the derived model, we investigate the effects of clock drifts on the performance of droop-controlled grid-forming inverters with regard to frequency synchronisation and active power sharing. The modelling and analysis is validated via extensive experiments on a microgrid in the megawatt-range. Index Terms-Smart grid applications, low-inertia power systems, microgrids, grid-forming inverters, droop control, power sharing.
CORE (RIOXX-UK Aggre... arrow_drop_down https://doi.org/10.1109/TIE.20...Other literature type . Article . 2016 . Peer-reviewedadd 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/tie.2016.2638805&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 27 citations 27 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!visibility 10visibility views 10 download downloads 321 Powered bymore_vert CORE (RIOXX-UK Aggre... arrow_drop_down https://doi.org/10.1109/TIE.20...Other literature type . Article . 2016 . Peer-reviewedadd 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/tie.2016.2638805&type=result"></script>'); --> </script>
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