publications | χristoφe Демко

2024

Fuzzy and Overlapping Communities Detection: An Improved Approach Using Formal Concept Analysis

Martin Waffo Kemgne, Christophe Demko, Karell Bertet, and 1 more author

In ASONAM 2024, Sep 2024

@inproceedings{waffokemgne:hal-04679375,
  title = {{Fuzzy and Overlapping Communities Detection: An Improved Approach Using Formal Concept Analysis}},
  author = {Waffo Kemgne, Martin and Demko, Christophe and Bertet, Karell and Guillaume, Jean-Loup},
  url = {https://hal.science/hal-04679375},
  booktitle = {{ASONAM 2024}},
  address = {Rende (CS), Calabria, Italy},
  year = {2024},
  month = sep,
  keywords = {Overlapping communities Fuzzy communities FCA graphs ; Overlapping communities ; Fuzzy communities ; FCA ; graphs},
  hal_id = {hal-04679375},
  hal_version = {v1}
}

Description lattices of generalised convex hulls

Christophe Demko, Karell Bertet, Jean-François Viaud, and 2 more authors

International Journal of Approximate Reasoning, Aug 2024

No. 109269

Bib

@article{demko:hal-04679079,
  title = {{Description lattices of generalised convex hulls}},
  author = {Demko, Christophe and Bertet, Karell and Viaud, Jean-Fran{\c c}ois and Faucher, Cyril and Mondou, Damien},
  url = {https://hal.science/hal-04679079},
  journal = {{International Journal of Approximate Reasoning}},
  publisher = {{Elsevier}},
  note = {No. 109269},
  year = {2024},
  month = aug,
  doi = {10.1016/j.ijar.2024.109269},
  hal_id = {hal-04679079},
  hal_version = {v1}
}

Détection de Communautés Floues et Chevauchantes via l’Analyse Formelle de Concepts

Martin Waffo Kemgne, Christophe Demko, Karell Bertet, and 1 more author

In Rencontres des Jeunes Chercheurs en Intelligence Artificielle 2024, Jul 2024

Bib

@inproceedings{waffokemgne:hal-04645638,
  title = {{D{\'e}tection de Communaut{\'e}s Floues et Chevauchantes via l'Analyse Formelle de Concepts}},
  author = {Waffo Kemgne, Martin and Demko, Christophe and Bertet, Karell and Guillaume, Jean-Loup},
  url = {https://hal.science/hal-04645638},
  booktitle = {{Rencontres des Jeunes Chercheurs en Intelligence Artificielle 2024}},
  address = {La Rochelle, France},
  organization = {{AFIA and L3i}},
  pages = {93-103},
  year = {2024},
  month = jul,
  keywords = {Communaut{\'e}s chevauchantes ; Communaut{\'e}s floues ; Analyse Formelle de Concepts ; Graphes},
  hal_id = {hal-04645638},
  hal_version = {v1}
}

Mise en place d’une chaîne de traitement pour l’analyse explicable de séries temporelles via l’Analyse Formelle de Concept par compression en chronogrammes

Guillaume Savarit, Christophe Demko, and Karell Bertet

In Plate-Forme Intelligence Artificielle 2024, Jul 2024

Bib

@inproceedings{savarit:hal-04645634,
  title = {{Mise en place d'une cha{\^i}ne de traitement pour l'analyse explicable de s{\'e}ries temporelles via l'Analyse Formelle de Concept par compression en chronogrammes}},
  author = {Savarit, Guillaume and Demko, Christophe and Bertet, Karell},
  url = {https://hal.science/hal-04645634},
  booktitle = {{Plate-Forme Intelligence Artificielle 2024}},
  address = {La Rochelle, France},
  organization = {{AFIA and L3i}},
  volume = {Rencontres des Jeunes Chercheurs en Intelligence Artificielle 2024},
  pages = {105-113},
  year = {2024},
  month = jul,
  keywords = {S{\'e}ries temporelles ; Logique temporelle ; Analyse Formelle de Concepts},
  hal_id = {hal-04645634},
  hal_version = {v1}
}

2023

GALACTIC : une nouvelle approche d’analyse de données complexes et hétérogènes

Karell Bertet, and Christophe Demko

Jun 2023

Communication orale aux Journées du GT Explicon en collaboration avec le séminaire ”Interdisciplinary Seminar Algorithms and Society” (LAMSADE-IRISSO)

Bib

@misc{bertet:hal-04142884,
  title = {{GALACTIC : une nouvelle approche d'analyse de donn{\'e}es complexes et h{\'e}t{\'e}rog{\`e}nes}},
  author = {Bertet, Karell and Demko, Christophe},
  url = {https://hal.science/hal-04142884},
  note = {Communication orale aux Journ{\'e}es du GT Explicon en collaboration avec le s{\'e}minaire ''Interdisciplinary Seminar Algorithms and Society'' (LAMSADE-IRISSO)},
  year = {2023},
  month = jun,
  hal_id = {hal-04142884},
  hal_version = {v1}
}

Transcription de séries temporelles en séquences temporelles via conservation des caractéristiques de variation

Guillaume Savarit, Karell Bertet, and Christophe Demko

In Inforsid 2023 : Exploration des traces dans un monde du tout numérique : enjeux et perspectives, May 2023

Bib PDF

@inproceedings{savarit:hal-04117085,
  title = {{Transcription de s{\'e}ries temporelles en s{\'e}quences temporelles via conservation des caract{\'e}ristiques de variation}},
  author = {Savarit, Guillaume and Bertet, Karell and Demko, Christophe},
  url = {https://hal.science/hal-04117085},
  booktitle = {{Inforsid 2023 : Exploration des traces dans un monde du tout num{\'e}rique : enjeux et perspectives}},
  address = {La Rochelle, France},
  organization = {{Damien Mondou and Ronan Champagnat and Didier Vye and Cyril Faucher}},
  year = {2023},
  month = may,
  keywords = {S{\'e}rie temporelle ; Analyse de donn{\'e}es ; S{\'e}quence temporelle},
  hal_id = {hal-04117085},
  hal_version = {v1}
}

2022

GALACTIC: towards a generic and scalable platform for complex and heterogeneous data using Formal Concept Analysis

Christophe Demko, Salah Eddine Boukhetta, Jérémy Richard, and 4 more authors

In Workshop ETAFCA’2022 Existing Tools and Applications for Formal Concept Analysis, Jun 2022

Bib

@inproceedings{demko:hal-03874711,
  title = {{GALACTIC: towards a generic and scalable platform for complex and heterogeneous data using Formal Concept Analysis}},
  author = {Demko, Christophe and Boukhetta, Salah Eddine and Richard, Jérémy and Savarit, Guillaume and Bertet, Karell and Faucher, Cyril and Mondou, Damien},
  url = {https://hal.archives-ouvertes.fr/hal-03874711},
  maintitle = {CLA'2022},
  booktitle = {{Workshop ETAFCA'2022  Existing Tools and Applications for Formal Concept Analysis}},
  address = {Tallinn, Estonia},
  organization = {{Tallinn University of Technology}},
  editor = {Cordero, Pablo and Kridlo, Ondrej},
  series = {CEUR Workshop Proceedings},
  volume = {3308},
  pages = {191--198},
  year = {2022},
  month = jun,
  hal_id = {hal-03874711},
  hal_version = {v1}
}

Discover spatio-temporal cluster from trajectory data enhance by heterogeneous contextual knowledge using FCA and the NᴇxᴛPʀɪᴏʀɪᴛʏCᴏɴᴄᴇᴘᴛ Algorithm

Jérémy Richard, Guillaume Savarit, Salah Eddine Boukhetta, and 3 more authors

In The 16th International Conference on Concept Lattices and Their Applications, Jun 2022

Bib

@inproceedings{richard:hal-03874621,
  title = {{Discover spatio-temporal cluster from trajectory data enhance by heterogeneous contextual knowledge using FCA and the NᴇxᴛPʀɪᴏʀɪᴛʏCᴏɴᴄᴇᴘᴛ Algorithm}},
  author = {Richard, Jérémy and Savarit, Guillaume and Boukhetta, Salah Eddine and Faucher, Cyril and Bertet, Karell and Demko, Christophe},
  url = {https://hal.archives-ouvertes.fr/hal-03874621},
  booktitle = {The 16th International Conference on Concept Lattices and Their Applications},
  address = {Tallinn, Estonia},
  organization = {{Tallinn University of Technology}},
  editor = {Cordero, Pablo and Kridlo, Ondrej},
  series = {CEUR Workshop Proceedings},
  volume = {3308},
  pages = {159--174},
  year = {2022},
  month = jun,
  keywords = {Formal concept analysis ; Trajectories},
  hal_id = {hal-03874621},
  hal_version = {v1}
}

On the links between the NᴇxᴛPʀɪᴏʀɪᴛʏCᴏɴᴄᴇᴘᴛ algorithm and generalized convex hulls

Karell Bertet, and Christophe Demko

In Joint Mathematics Meetings, Apr 2022

Bib

@inproceedings{bertet:hal-03639401,
  title = {{On the links between the NᴇxᴛPʀɪᴏʀɪᴛʏCᴏɴᴄᴇᴘᴛ algorithm and generalized convex hulls}},
  author = {Bertet, Karell and Demko, Christophe},
  url = {https://hal.archives-ouvertes.fr/hal-03639401},
  booktitle = {{Joint Mathematics Meetings}},
  address = {Virtual, United States},
  organization = {{American Mathematical Society (AMS)}},
  year = {2022},
  month = apr,
  keywords = {Formal concept analysis ; Convex geometries},
  hal_id = {hal-03639401},
  hal_version = {v1}
}

Fouille de séquences temporelles avec l’AFC et l’outil GALACTIC

Salah Eddine Boukhetta, Christophe Demko, Karell Bertet, and 2 more authors

In Conférence francophone sur l’Extraction et la Gestion des Connaissances - Atelier Gestion et Analyse de données Spatiales et Temporelles, Jan 2022

Bib

@inproceedings{fca:boukhetta2022,
  title = {{Fouille de s{\'e}quences temporelles avec l'AFC et l'outil GALACTIC}},
  author = {Boukhetta, Salah Eddine and Demko, Christophe and Bertet, Karell and Richard, J{\'e}r{\'e}my and Cay{\`e}r{\'e}, C{\'e}cile},
  url = {https://hal.archives-ouvertes.fr/hal-03491826},
  booktitle = {{Conf{\'e}rence francophone sur l'Extraction et la Gestion des Connaissances - Atelier Gestion et Analyse de donn{\'e}es Spatiales et Temporelles}},
  address = {Blois, France},
  year = {2022},
  month = jan,
  hal_id = {hal-03491826},
  hal_version = {v1}
}

Analysis of Complex and Heterogeneous Data Using FCA and Monadic Predicates

Karell Bertet, Christophe Demko, Salah Boukhetta, and 2 more authors

Jan 2022

Abs Bib

In this article, we recall the NᴇxᴛPʀɪᴏʀɪᴛʏCᴏɴᴄᴇᴘᴛ algorithm we developed to study concept lattices using first-order monadic predicates. This new approach unifies and simplifies the pattern structure theory proposing to immerse context objects in a dedicated predicate space having the properties of an inference system. This way of managing objects and attributes (monadic predicates) joins the concepts developed in the theory of generalized convex structures, in particular that of half-spaces. We show how this paradigm can be used for boolean, categorized, numerical, character string and sequential data on well-known examples of literature in order to generate lattices whose size is controlled by the user’s choices.
@inbook{fca:Bertet2022, author = {Bertet, Karell and Demko, Christophe and Boukhetta, Salah and Richard, Jérémy and Faucher, Cyril}, editor = {Missaoui, Rokia and Kwuida, Léonard and Abdessalem, Talel}, title = {Analysis of Complex and Heterogeneous Data Using FCA and Monadic Predicates}, booktitle = {Complex Data Analytics with Formal Concept Analysis}, year = {2022}, publisher = {Springer International Publishing}, address = {Cham}, pages = {75--103}, isbn = {978-3-030-93278-7}, doi = {10.1007/978-3-030-93278-7_4}, url = {https://doi.org/10.1007/978-3-030-93278-7_4} }

2021

Temporal sequence mining using FCA and GALACTIC

Salah Eddine Boukhetta, Christophe Demko, Karell Bertet, and 2 more authors

In 26th International Conference on Conceptual Structures, Sep 2021

Bib

@inproceedings{fca:boukhetta2021,
  title = {{Temporal sequence mining using FCA and GALACTIC}},
  author = {Boukhetta, Salah Eddine and Demko, Christophe and Bertet, Karell and Richard, J{\'e}r{\'e}my and Cay{\`e}r{\'e}, C{\'e}cile},
  url = {https://hal.archives-ouvertes.fr/hal-03258781},
  booktitle = {{26th International Conference on Conceptual Structures}},
  address = {Bolzano, Italy},
  editor = {Braun and Tanya and Gehrke and Marcel and Hanika and Tom and Hernandez and Nathalie},
  publisher = {{Springer International Publishing}},
  series = {Graph-Based Representation and Reasoning},
  volume = {Lecture Notes in Computer Science},
  number = {12879},
  pages = {185-199},
  year = {2021},
  month = sep,
  hal_id = {hal-03258781},
  hal_version = {v1}
}

A Story of Rules...

Karell Bertet, Kira Adaricheva, Christophe Demko, and 2 more authors

In ICFCA 2021, International Conference on Formal Concept Analysis, Jun 2021

Bib

@inproceedings{fca:bertet2021,
  title = {{A Story of Rules...}},
  author = {Bertet, Karell and Adaricheva, Kira and Demko, Christophe and Mora, Angel and Enciso, Manuel},
  url = {https://hal.archives-ouvertes.fr/hal-03273693},
  booktitle = {{ICFCA 2021, International Conference on Formal Concept Analysis}},
  address = {Strasbourg, France},
  year = {2021},
  month = jun,
  keywords = {formal concept analysis ; rules},
  hal_id = {hal-03273693},
  hal_version = {v1}
}

2020

Sequence Mining Using FCA and the NᴇxᴛPʀɪᴏʀɪᴛʏCᴏɴᴄᴇᴘᴛ Algorithm

Salah Eddine Boukhetta, Christophe Demko, Jérémy Richard, and 1 more author

In Concept Lattices and Their Applications 2020, Jun 2020

Bib

@inproceedings{fca:boukhetta2020,
  title = {{Sequence Mining Using FCA and the NᴇxᴛPʀɪᴏʀɪᴛʏCᴏɴᴄᴇᴘᴛ Algorithm}},
  author = {Boukhetta, Salah Eddine and Demko, Christophe and Richard, J{\'e}r{\'e}my and Bertet, Karell},
  url = {https://hal.archives-ouvertes.fr/hal-03038439},
  booktitle = {{Concept Lattices and Their Applications 2020}},
  address = {Tallinn, Estonia},
  series = {CEUR},
  volume = {2668},
  pages = {209--222},
  year = {2020},
  month = jun,
  hal_id = {hal-03038439},
  hal_version = {v1}
}

Interval-based sequence mining using FCA and the NᴇxᴛPʀɪᴏʀɪᴛʏCᴏɴᴄᴇᴘᴛ algorithm

Salah Eddine Boukhetta, Jérémy Richard, Christophe Demko, and 1 more author

In FCA4AI 2020: What can FCA do for AI?, Aug 2020

Bib

@inproceedings{fca:boukhetta2020a,
  title = {{Interval-based sequence mining using FCA and the NᴇxᴛPʀɪᴏʀɪᴛʏCᴏɴᴄᴇᴘᴛ algorithm}},
  author = {Boukhetta, Salah Eddine and Richard, J{\'e}r{\'e}my and Demko, Christophe and Bertet, Karell},
  url = {https://hal.archives-ouvertes.fr/hal-03038487},
  booktitle = {{FCA4AI 2020: What can FCA do for AI?}},
  address = {Santiago de Compostela, Spain},
  series = {CEUR},
  volume = {2729},
  pages = {91-102},
  year = {2020},
  month = aug,
  hal_id = {hal-03038487},
  hal_version = {v1}
}

NᴇxᴛPʀɪᴏʀɪᴛʏCᴏɴᴄᴇᴘᴛ: A new and generic algorithm computing concepts from complex and heterogeneous data

Christophe Demko, Karell Bertet, Cyril Faucher, and 2 more authors

Theoretical Computer Science, Aug 2020

Abs Bib

In this article, we present a new data type agnostic algorithm calculating a concept lattice from heterogeneous and complex data. Our NᴇxᴛPʀɪᴏʀɪᴛʏCᴏɴᴄᴇᴘᴛ algorithm is first introduced and proved in the binary case as an extension of Bordat’s algorithm with the notion of strategies to select only some predecessors of each concept, avoiding the generation of unreasonably large lattices. The algorithm is then extended to any type of data in a generic way. It is inspired by the pattern structure theory, where data are locally described by predicates independent of their types, allowing the management of heterogeneous data.
@article{fca:Demko2020, title = {NᴇxᴛPʀɪᴏʀɪᴛʏCᴏɴᴄᴇᴘᴛ: A new and generic algorithm computing concepts from complex and heterogeneous data}, journal = {Theoretical Computer Science}, volume = {845}, pages = {1 - 20}, year = {2020}, issn = {0304-3975}, doi = {10.1016/j.tcs.2020.08.026}, dimensions = true, url = {http://www.sciencedirect.com/science/article/pii/S0304397520304837}, author = {Demko, Christophe and Bertet, Karell and Faucher, Cyril and Viaud, Jean-François and Kuznetsov, Sergei O.}, keywords = {Formal Concept Analysis, Lattice, Pattern structures, Strategies, Heterogeneous data} }

2019

NᴇxᴛPʀɪᴏʀɪᴛʏCᴏɴᴄᴇᴘᴛ: A new and generic algorithm computing concepts from complex and heterogeneous data

Christophe Demko, Karell Bertet, Cyril Faucher, and 2 more authors

Dec 2019

Bib HTML PDF

@misc{fca:Demko2019,
  author = {Demko, Christophe and Bertet, Karell and Faucher, Cyril and Viaud, Jean-François and Kuznetsov, Sergei O.},
  title = {NᴇxᴛPʀɪᴏʀɪᴛʏCᴏɴᴄᴇᴘᴛ: {A} new and generic algorithm computing concepts from complex and heterogeneous data},
  year = {2019},
  month = dec,
}

GALACTIC: A python3 framework for studying Formal Concept Analysis

Christophe Demko, Karell Bertet, and others

Jan 2019

Bib HTML

@misc{fca:Demko2019-2,
  author = {Demko, Christophe and Bertet, Karell and others},
  howpublished = {https://galactic.univ-lr.fr},
  month = jan,
  title = {{GALACTIC}: {A} python3 framework for studying {F}ormal {C}oncept {A}nalysis},
  year = {2019},
}

2018

Using congruence relations to extract knowledge from concept lattices

Jean-François Viaud, Karell Bertet, Rokia Missaoui, and 1 more author

Discrete Applied Mathematics, Jan 2018

Concept Lattices and Applications: Recent Advances and New Opportunities

Abs Bib

It is well-known inside the Formal Concept Analysis (FCA) community that a concept lattice could have an exponential size with respect to the input data. Hence, the size of concept lattices is a critical issue in large real-life data sets. In this paper, we propose to investigate congruence relations as a tool to get meaningful parts of the whole lattice or its implication basis. This paper presents two main theoretical contributions, namely two context (or lattice) decompositions based on congruence relations and new results about implication computation after decomposition.
@article{fca:Viaud2018, author = {Viaud, Jean-François and Bertet, Karell and Missaoui, Rokia and Demko, Christophe}, doi = {10.1016/j.dam.2016.11.021}, issn = {0166-218X}, journal = {Discrete Applied Mathematics}, keywords = {Formal Concept Analysis; Concept lattice; Congruence relation; Subdirect decomposition; Doubling convex construction; Implication system}, note = {Concept Lattices and Applications: Recent Advances and New Opportunities}, pages = {135–150}, title = {Using congruence relations to extract knowledge from concept lattices}, url = {http://www.sciencedirect.com/science/article/pii/S0166218X16305741}, volume = {249}, year = {2018} }
Lattices, closures systems and implication bases: A survey of structural aspects and algorithms

Karell Bertet, Christophe Demko, Jean-François Viaud, and 1 more author

Theoretical Computer Science, Jan 2018

Abs Bib

Concept lattices and closed set lattices are graphs with the lattice property. They have been increasingly used this last decade in various domains of computer science, such as data mining, knowledge representation, databases or information retrieval. A fundamental result of lattice theory establishes that any lattice is the concept lattice of its binary table. A consequence is the existence of a bijective link between lattices, contexts (via the table) and a set of implicational rules (via the canonical (direct) basis). The possible transformations between these objects give rise to relevant tools for data analysis. In this paper, we present a survey of lattice theory, from the algebraic definition of a lattice, to that of a concept lattice, through closure systems and implicational rules; including the exploration of fundamental bijective links between lattices, reduced contexts and bases of implicational rules; and concluding with the presentation of the main generation algorithms of these objects.
@article{fca:Bertet2018, author = {Bertet, Karell and Demko, Christophe and Viaud, Jean-François and Guérin, Clément}, doi = {10.1016/j.tcs.2016.11.021}, issn = {0304-3975}, journal = {Theoretical Computer Science}, keywords = {Lattice; Closed set lattice; Concept lattice; Galois lattice; Implicational system; Closure operator; Closure system; Canonical direct basis; Canonical basis; Dependence graph; Minimal generators}, pages = {93–109}, title = {Lattices, closures systems and implication bases: {A} survey of structural aspects and algorithms}, url = {http://www.sciencedirect.com/science/article/pii/S0304397516306806}, volume = {743}, year = {2018} }

2017

Distributed and Parallel Computation of the Canonical Direct Basis

Jean-François Viaud, Karell Bertet, Rokia Missaoui, and 1 more author

In Formal Concept Analysis - 14th International Conference, ICFCA 2017, Rennes, France, June 13-16, 2017, Proceedings, Jun 2017

Bib

@inproceedings{fca:Viaud2017,
  author = {Viaud, Jean{-}François and Bertet, Karell and Missaoui, Rokia and Demko, Christophe},
  bibsource = {dblp computer science bibliography, http://dblp.org},
  biburl = {http://dblp.uni-trier.de/rec/bib/conf/icfca/ViaudBMD17},
  booktitle = {Formal Concept Analysis - 14th International Conference, {ICFCA} 2017, Rennes, France, June 13-16, 2017, Proceedings},
  doi = {10.1007/978-3-319-59271-8_15},
  month = jun,
  pages = {228–241},
  timestamp = {Fri, 02 Jun 2017 12:47:10 +0200},
  title = {Distributed and Parallel Computation of the Canonical Direct Basis},
  url = {https://doi.org/10.1007/978-3-319-59271-8_15},
  year = {2017}
}

2015

The Reverse Doubling Construction

Jean-François Viaud, Karell Bertet, Christophe Demko, and 1 more author

In KDIR 2015 - Proceedings of the International Conference on Knowledge Discovery and Information Retrieval, part of the 7th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management (IC3K 2015), Volume 1, Lisbon, Portugal, November 12-14, 2015, Jun 2015

Bib

@inproceedings{fca:Viaud2015d,
  author = {Viaud, Jean{-}François and Bertet, Karell and Demko, Christophe and Missaoui, Rokia},
  bibsource = {dblp computer science bibliography, http://dblp.org},
  biburl = {http://dblp.uni-trier.de/rec/bib/conf/ic3k/ViaudBDM15},
  booktitle = {{KDIR} 2015 - Proceedings of the International Conference on Knowledge Discovery and Information Retrieval, part of the 7th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management {(IC3K} 2015), Volume 1, Lisbon, Portugal, November 12-14, 2015},
  doi = {10.5220/0005613203500357},
  pages = {350–357},
  timestamp = {Fri, 19 May 2017 01:25:06 +0200},
  title = {The Reverse Doubling Construction},
  url = {https://doi.org/10.5220/0005613203500357},
  year = {2015}
}

Subdirect Decomposition of Contexts into Subdirectly Irreducible Factors

Jean-François Viaud, Karell Bertet, Christophe Demko, and 1 more author

In Proceedings of the International Workshop on Formal Concept Analysis and Applications, FCA&A 2015, co-located with 13th International Conference on Formal Concept Analysis (ICFCA 2015), Nerja, Málaga, Spain, June 23-26, 2015., Jun 2015

Bib

@inproceedings{fca:Viaud2015c,
  author = {Viaud, Jean{-}François and Bertet, Karell and Demko, Christophe and Missaoui, Rokia},
  bibsource = {dblp computer science bibliography, http://dblp.org},
  biburl = {http://dblp.uni-trier.de/rec/bib/conf/icfca/ViaudBDM15},
  booktitle = {Proceedings of the International Workshop on Formal Concept Analysis and Applications, FCA{\&}A 2015, co-located with 13th International Conference on Formal Concept Analysis {(ICFCA} 2015), Nerja, Málaga, Spain, June 23-26, 2015.},
  pages = {49–64},
  timestamp = {Mon, 30 May 2016 16:28:38 +0200},
  title = {Subdirect Decomposition of Contexts into Subdirectly Irreducible Factors},
  year = {2015}
}

Décomposition sous-directe d’un treillis en facteurs irréductibles

Jean-François Viaud, Karell Bertet, Christophe Demko, and 1 more author

In IC 2015 : 26es Journées francophones d’Ingénierie des Connaissances (Proceedings of the 26th French Knowledge Engineering Conference), Rennes, France, July 1-3, 2015, Jun 2015

Bib

@inproceedings{fca:Viaud2015a,
  author = {Viaud, Jean{-}François and Bertet, Karell and Demko, Christophe and Missaoui, Rokia},
  bibsource = {dblp computer science bibliography, https://dblp.org},
  biburl = {https://dblp.org/rec/conf/f-ic/ViaudBDM15.bib},
  booktitle = {{IC} 2015 : 26es Journées francophones d'Ingénierie des Connaissances (Proceedings of the 26th French Knowledge Engineering Conference), Rennes, France, July 1-3, 2015},
  editor = {Abel, Marie{-}Hélène},
  timestamp = {Wed, 08 Feb 2017 12:55:48 +0100},
  title = {Décomposition sous-directe d'un treillis en facteurs irréductibles},
  url = {http://hal.archives-ouvertes.fr/IC-2015/hal-01169541},
  year = {2015}
}

Décomposition sous-directe d’un treillis en facteurs irréductibles

Jean-François Viaud, Karell Bertet, Christophe Demko, and 1 more author

In Journées francophones d’Ingénierie des Connaissances IC2015, Jun 2015

Bib PDF

@inproceedings{fca:Viaud2015b,
  address = {Rennes, France},
  author = {Viaud, Jean-François and Bertet, Karell and Demko, Christophe and Missaoui, Rokia},
  booktitle = {Journées francophones d'Ingénierie des Connaissances IC2015},
  hal_id = {hal-01169541},
  hal_version = {v1},
  keywords = {relation de congruence; treillis de concepts; sous-contexte compatible; sous-contexte flèche-fermé; treillis quotient; relation flèche},
  month = jun,
  series = {collection AFIA},
  title = {Décomposition sous-directe d'un treillis en facteurs irréductibles},
  url = {https://hal.archives-ouvertes.fr/hal-01169541},
  year = {2015}
}

2014

Maîtriser Joomla!

Christophe Demko, and Vincent Perdereau

Feb 2014

Bib

@book{joomla:Demko2014,
  author = {Demko, Christophe and Perdereau, Vincent},
  edition = {2ème édition},
  month = feb,
  publisher = {Éditions ENI},
  title = {Maîtriser {J}oomla!},
  year = {2014}
}

java-lattices: a Java library for lattices computation

Karell et al Bertet

Feb 2014

Bib

@misc{fca:Bertet2014,
  author = {Bertet, Karell et al},
  howpublished = {http://kbertet.github.io/java-lattices},
  title = {{java-lattices}: a Java library for lattices computation},
  year = {2014}
}

php-sorted-collections: Sorted Collections for PHP

Christophe Demko

Feb 2014

Bib

@misc{php-sorted-collections:Demko2014,
  author = {Demko, Christophe},
  howpublished = {http://chdemko.github.io/php-sorted-collections},
  title = {{php-sorted-collections}: {S}orted Collections for PHP},
  year = {2014}
}

2013

Paysage d’écoute: Un module moodle pour l’enseignement des langues

Alfred Knapp, and Christophe Demko

Jun 2013

Bib

@misc{moodle:Knapp2013,
  author = {Knapp, Alfred and Demko, Christophe},
  howpublished = {Université Vivaldi - La Rochelle},
  month = jun,
  title = {Paysage d'écoute: {U}n module moodle pour l'enseignement des langues},
  year = {2013}
}

moodle-mod_elang: Un module moodle pour l’apprentissage des langues

Christophe Demko, and Alfred Knapp

Jun 2013

Bib

@misc{moodle:Demko2013,
  author = {Demko, Christophe and Knapp, Alfred},
  howpublished = {http://e-lang.github.io/moodle-mod\_elang},
  title = {{m}oodle-mod\_elang: {U}n module moodle pour l'apprentissage des langues},
  year = {2013}
}

2012

Information Retrieval by On-line Navigation in the Latticial Space-search of a Database, with Limited Objects Access

Christophe Demko, and Karell Bertet

In International workshop of the ECAI 2012 conference “What can FCA do for artificial intelligence?” (FCA4AI), Aug 2012

Bib

@inproceedings{fca:Demko2012,
  address = {Montpellier, France},
  author = {Demko, Christophe and Bertet, Karell},
  booktitle = {International workshop of the {ECAI} 2012 conference “{W}hat can {FCA} do for artificial intelligence?” ({FCA}4{AI})},
  month = aug,
  pages = {33–40},
  title = {Information Retrieval by On-line Navigation in the Latticial Space-search of a Database, with Limited Objects Access},
  year = {2012}
}

Le framework de Joomla!

Christophe Demko

Mar 2012

30 min.

Bib

@misc{joomla:Demko2012,
  author = {Demko, Christophe},
  howpublished = {Conférence invitée au JoomlaDay 2012},
  month = mar,
  note = {30 min.},
  title = {Le framework de {J}oomla!},
  year = {2012}
}

2011

Generation algorithm of a concept lattice with limited object access

Christophe Demko, and Karell Bertet

In The eight international conference on Concept Lattices and their Applications, Oct 2011

Bib

@inproceedings{fca:Demko2011,
  address = {Nancy, France},
  author = {Demko, Christophe and Bertet, Karell},
  booktitle = {The eight international conference on {C}oncept {L}attices and their {A}pplications},
  month = oct,
  pages = {239–250},
  title = {Generation algorithm of a concept lattice with limited object access},
  year = {2011}
}

Joomla!: le composant Catégories

Christophe Demko

Hors-série de la revue PHPSolutions, Jul 2011

Bib

@article{joomla:Demko2011c,
  author = {Demko, Christophe},
  journal = {Hors-série de la revue PHPSolutions},
  month = jul,
  pages = {6–17},
  title = {Joomla!: le composant Catégories},
  year = {2011}
}

Maîtriser Joomla!

Christophe Demko

May 2011

Bib

Le framework de Joomla!

Christophe Demko, and Marc Studer

Mar 2011

30 min.

Bib

@misc{joomla:Demko2011a,
  author = {Demko, Christophe and Studer, Marc},
  howpublished = {Conférence invitée au JoomlaDay 2011},
  month = mar,
  note = {30 min.},
  title = {Le framework de {J}oomla!},
  year = {2011}
}

2010

Le framework Joomla!1.6

Christophe Demko, and Marc Studer

Mar 2010

30 min.

Bib

@misc{joomla:Demko2010,
  author = {Demko, Christophe and Studer, Marc},
  howpublished = {Conférence invitée au JoomlaDay 2010},
  month = mar,
  note = {30 min.},
  title = {Le framework {J}oomla!1.6},
  year = {2010}
}

2009

Developing a Model-View-Controller Component for Joomla!

Christophe Demko

Nov 2009

Bib

@misc{joomla:Demko2009,
  author = {Demko, Christophe},
  howpublished = {https://docs.joomla.org/J2.5:Developing_a_MVC_Component},
  month = nov,
  title = {Developing a {M}odel-{V}iew-{C}ontroller {C}omponent for {J}oomla!},
  year = {2009}
}

Authentification externe sous Joomla!

Christophe Demko

May 2009

30 min.

Bib

@misc{joomla:Demko2009b,
  author = {Demko, Christophe},
  howpublished = {Conférence invitée au JoomlaDay 2009},
  month = may,
  note = {30 min.},
  title = {Authentification externe sous {J}oomla!},
  year = {2009}
}

Le paradigme Modèle-Vue-Controlleur en Joomla 1.6

Christophe Demko

May 2009

30 min.

Bib

@misc{joomla:Demko2009a,
  author = {Demko, Christophe},
  howpublished = {Conférence invitée au JoomlaDay 2009},
  month = may,
  note = {30 min.},
  title = {Le paradigme {M}odèle-{V}ue-{C}ontrolleur en Joomla 1.6},
  year = {2009}
}

Contributions to open source software

Christophe Demko

May 2009

Bib

2007

Induction Learning of Incomplete Data for Planting Material Selection

Mohammed Najib, Patrice Boursier, and Christophe Demko

In proceedings of the International Conference on Biomathematics, Institute Technology of Bandung, Indonesia, May 2007

Bib

@inproceedings{decision-tree:Najib2007,
  author = {Najib, Mohammed and Boursier, Patrice and Demko, Christophe},
  booktitle = {proceedings of the International Conference on Biomathematics, Institute Technology of Bandung, Indonesia},
  title = {Induction Learning of Incomplete Data for Planting Material Selection},
  year = {2007},
  address = {Bandung, Indonesia}
}

Réécriture d’expressions symboliques floues

Christophe Demko

In Actes des Rencontres francophone sur la Logique Floue et ses Applications, May 2007

Bib

@inproceedings{fuzzy-rewriting:Demko2007,
  author = {Demko, Christophe},
  booktitle = {Actes des {R}encontres francophone sur la {L}ogique {F}loue et ses {A}pplications},
  title = {Réécriture d'expressions symboliques floues},
  year = {2007}
}

2006

Partitionnement de données paramétriques en zones de comportement homogène dans un but explicatif

Manoranjan Muniandi, Christophe Demko, and Bertrand Vachon

In Georges hébrail and rené quiniou, editors, atelier fouille de données temporelles, conférence Extraction et Gestion des Connaissances, Jan 2006

Bib

@inproceedings{fuzzy-data-mining:Muniandi2006,
  address = {Lille, France},
  author = {Muniandi, Manoranjan and Demko, Christophe and Vachon, Bertrand},
  booktitle = {Georges hébrail and rené quiniou, editors, atelier fouille de données temporelles, conférence {E}xtraction et {G}estion des {C}onnaissances},
  month = jan,
  pages = {96–101},
  title = {Partitionnement de données paramétriques en zones de comportement homogène dans un but explicatif},
  year = {2006}
}

2000

The fuzzy c+2-means: solving the ambiguity rejection in clustering

Michel Ménard, Christophe Demko, and Pierre Loonis

Pattern Recognition, Jan 2000

Abs Bib

In this paper we deal with the clustering problem whose goal consists of computing a partition of a family of patterns into disjoint classes. The method that we propose is formulated as a constrained minimization problem, whose solution depends on a fuzzy objective function in which reject options are introduced. Two types of rejection have been included: the ambiguity rejection which concerns patterns lying near the class boundaries and the distance rejection dealing with patterns that are far away from all the classes. To compute these rejections, we propose an extension of the fuzzy c-means (FcM) algorithm of Bezdek, Pattern Recognition with Fuzzy Objective Function Algorithms, Plenum Press, New York, 1981. This algorithm is called the fuzzy c+2-means (Fc+2M). These measures allow to manage uncertainty due both to imprecise and incomplete definition of the classes. The advantages of our method are (1) the degree of membership to the reject classes for a pattern xk are learned in the iterative clustering problem; (2) it is not necessary to compute other characteristics to determine the reject and ambiguity degrees; (3) the partial ambiguity rejections introduce a discounting process between the classical FcM membership functions in order to avoid the memberships to be spread across the classes; (4) the membership functions are more immune to noise and correspond more closely to the notion of compatibility. Preliminary computational experiences on the developed algorithm are encouraging and compared favorably with results from other methods as FcM, FPcM and F(c+1)M (fuzzy c+1-means: clustering with solely distance rejection) algorithms on the same data sets. The differences in the performance can be attributed to the fact that ambiguous patterns are less accounted in for the computing of the centers.
@article{fuzzy-clustering:Menard1999, title = {The fuzzy c+2-means: solving the ambiguity rejection in clustering}, journal = {Pattern Recognition}, volume = {33}, number = {7}, pages = {1219-1237}, year = {2000}, issn = {0031-3203}, doi = {10.1016/S0031-3203(99)00110-7}, url = {https://www.sciencedirect.com/science/article/pii/S0031320399001107}, author = {Ménard, Michel and Demko, Christophe and Loonis, Pierre}, keywords = {Fuzzy clustering, Fuzzy c-means, Ambiguity rejection, Distance rejection} }

1999

Genetic tasks planning in image processing

Stéphane Vétault, Pierre Loonis, and Christophe Demko

In Proceedings of the 11th Scandinavian Conference on Image Analysis, Jun 1999

Bib

@inproceedings{ga:Loonis1999,
  address = {Kangerlussuaq, Greenland},
  author = {Vétault, Stéphane and Loonis, Pierre and Demko, Christophe},
  booktitle = {Proceedings of the 11th {S}candinavian {C}onference on {I}mage {A}nalysis},
  month = jun,
  pages = {297–304},
  title = {Genetic tasks planning in image processing},
  volume = {1},
  year = {1999}
}

1998

Analyse du flux sanguin aprés correction du repliement spectral en imagerie Doppler couleur par modélisation floue

Ahmad Shahin, Michel Ménard, and Christophe Demko

Innovation et Technologie en Biologie et Médecine, Dec 1998

Bib

@article{fuzzy:Shahin1998b,
  author = {Shahin, Ahmad and Ménard, Michel and Demko, Christophe},
  journal = {Innovation et Technologie en Biologie et Médecine},
  month = dec,
  number = {6},
  pages = {449–461},
  title = {Analyse du flux sanguin aprés correction du repliement spectral en imagerie Doppler couleur par modélisation floue},
  volume = {19},
  year = {1998}
}

Système de correction spatiale, d’analyse et de reconstruction 3D en imagerie Doppler couleur

Ahmad Shahin, Michel Ménard, Christophe Demko, and 2 more authors

Apr 1998

Bib

@misc{fuzzy:Shahin1998a,
  author = {Shahin, Ahmad and Ménard, Michel and Demko, Christophe and Eboueya, Michel and Coisne, Damien},
  howpublished = {Des images pour l'industrie, {S}ociété de {P}romotion et d'{I}nitiatives en {P}rovince de {L}iège},
  month = apr,
  title = {Système de correction spatiale, d'analyse et de reconstruction 3D en imagerie Doppler couleur},
  year = {1998}
}

Membre invité de la table ronde Décision en Reconnaissance des Formes et Intelligence Artificielle

Christophe Demko

Jan 1998

Bib

@misc{classification:Demko1998,
  author = {Demko, Christophe},
  howpublished = {Congrès {RFIA}, {C}lermont-{F}errand, {F}rance},
  month = jan,
  title = {Membre invité de la table ronde {D}écision en {R}econnaissance des {F}ormes et {I}ntelligence {A}rtificielle},
  year = {1998}
}

Analyse des systèmes de reconnaissance des formes par la théorie de l’information. Application aux problèmes de reconnaissance d’images complexes.

Pierre Loonis, Michel Ménard, and Christophe Demko

In Actes du 11ème congrès Reconnaissance des Formes et Intelligence Artificielle, Jan 1998

Bib

@inproceedings{information:Loonis1998,
  address = {Clermont-Ferrand, France},
  author = {Loonis, Pierre and Ménard, Michel and Demko, Christophe},
  booktitle = {Actes du 11ème congrès {R}econnaissance des {F}ormes et {I}ntelligence {A}rtificielle},
  month = jan,
  title = {Analyse des systèmes de reconnaissance des formes par la théorie de l'information. Application aux problèmes de reconnaissance d'images complexes.},
  year = {1998}
}

Generalization of two hypergraphs. Algorithm of calculation of the greatest sub-hypergraphs common to two hypergraphs annotated by semantic information

Christophe Demko

Jan 1998

Bib

@inbook{matching:Demko1998,
  author = {Demko, Christophe},
  booktitle = {Graph Based Representations in Pattern Recognition},
  editor = {Springer-Verlag},
  pages = {1–9},
  publisher = {Jolion, J.M. and Kropatsch, W. G.},
  series = {Computing {S}upplement, {A}rchives for {I}nformatics and {N}umerical {C}omputation},
  title = {Generalization of two hypergraphs. Algorithm of calculation of the greatest sub-hypergraphs common to two hypergraphs annotated by semantic information},
  volume = {12},
  year = {1998}
}

Les c+1-moyennes floues : élimination du bruit en classification

Christophe Demko

In Actes des Rencontres francophone sur la Logique Floue et ses Applications, Jan 1998

Bib

@inproceedings{fuzzy-clustering:Demko1998b,
  author = {Demko, Christophe},
  booktitle = {Actes des {R}encontres francophone sur la {L}ogique {F}loue et ses {A}pplications},
  title = {Les c+1-moyennes floues~: élimination du bruit en classification},
  year = {1998}
}

Les c+1-moyennes floues : introduction du rejet en classification

Christophe Demko, Pierre Loonis, and Michel Ménard

In Actes des sixièmes rencontres de la Société Francophone de Classification, Jan 1998

Bib

@inproceedings{fuzzy-clustering:Demko1998a,
  author = {Demko, Christophe and Loonis, Pierre and Ménard, Michel},
  booktitle = {Actes des sixièmes rencontres de la {S}ociété {F}rancophone de {C}lassification},
  pages = {65–68},
  title = {Les c+1-moyennes floues~: introduction du rejet en classification},
  year = {1998}
}

1997

The fuzzy c+1-means: introduction of reject in clustering

Christophe Demko, Michel Ménard, and Pierre Loonis

Pattern Analysis and Machine Intelligence, Oct 1997

Submitted

Bib

@article{fuzzy-clustering:Demko1999,
  author = {Demko, Christophe and Ménard, Michel and Loonis, Pierre},
  journal = {Pattern {A}nalysis and {M}achine {I}ntelligence},
  month = oct,
  note = {Submitted},
  title = {The fuzzy c+1-means: introduction of reject in clustering},
  year = {1997}
}

Fuzzy modeling in pattern recognition

Ahmad Shahin, Michel Ménard, and Christophe Demko

In EUFIT’97, 5th European Congress on Intelligent Techniques and Soft Computing, Sep 1997

Bib

@inproceedings{fuzzy:Shahin1997b,
  address = {Aachen, Germany},
  author = {Shahin, Ahmad and Ménard, Michel and Demko, Christophe},
  booktitle = {{EUFIT}'97, 5th {E}uropean {C}ongress on {I}ntelligent {T}echniques and {S}oft {C}omputing},
  month = sep,
  pages = {1998–2002},
  title = {Fuzzy modeling in pattern recognition},
  year = {1997}
}

Modélisation floue adaptée au Doppler Couleur

Ahmad Shahin, Michel Ménard, and Christophe Demko

May 1997

Bib

@misc{fuzzy:Shahin1997a,
  author = {Shahin, Ahmad and Ménard, Michel and Demko, Christophe},
  howpublished = {Symposium sur l'imagerie cardiovasculaire, CHU Poitiers~-~SEE Centre Atlantique et Club 29, Futuroscope Poitiers, GDR-PRC ISIS},
  month = may,
  title = {Modélisation floue adaptée au {D}oppler Couleur},
  year = {1997}
}

1996

Modélisation floue multi-points de vue pour la reconnaissance d’objets naturels

Michel Ménard, Christophe Demko, and Ahmad Shahin

In Actes des Rencontres francophones sur la Logique Floue et ses Applications, Dec 1996

Bib

@inproceedings{fuzzy:Menard1996,
  address = {Nancy, France},
  author = {Ménard, Michel and Demko, Christophe and Shahin, Ahmad},
  booktitle = {Actes des {R}encontres francophones sur la {L}ogique {F}loue et ses {A}pplications},
  month = dec,
  title = {Modélisation floue multi-points de vue pour la reconnaissance d'objets naturels},
  year = {1996}
}

A new genetic algorithm for the multi-classifiers fusion optimization

Pierre Loonis, Michel Ménard, and Christophe Demko

In Proceedings of Information Processing and Management of Uncertainty in Knowledge Based Systems, Jul 1996

Bib

@inproceedings{cooperation:Loonis1996b,
  address = {Granada, Spain},
  author = {Loonis, Pierre and Ménard, Michel and Demko, Christophe},
  booktitle = {Proceedings of {I}nformation {P}rocessing and {M}anagement of {U}ncertainty in {K}nowledge {B}ased {S}ystems},
  month = jul,
  pages = {957–961},
  title = {A new genetic algorithm for the multi-classifiers fusion optimization},
  volume = {2},
  year = {1996}
}

Vers l’aide au diagnostic par segmentation floue

Ahmad Shahin, Pierre Loonis, Christophe Demko, and 1 more author

In Actes du Colloque Automatique, Génie Informatique, Images, Jun 1996

Bib

@inproceedings{fuzzy:Shahin1996b,
  address = {Tours, France},
  author = {Shahin, Ahmad and Loonis, Pierre and Demko, Christophe and Eboueya, Michel},
  booktitle = {Actes du {C}olloque {A}utomatique, {G}énie {I}nformatique, {I}mages},
  month = jun,
  title = {Vers l'aide au diagnostic par segmentation floue},
  year = {1996}
}

A global device for time correction, flow velocity analyze and three dimensional reconstruction of color Doppler imaging.

Ahmad Shahin, Christophe Demko, Michel Ménard, and 1 more author

In Proceedings of ALMA 1996 CONVENTION, Apr 1996

Bib

@inproceedings{fuzzy:Shahin1996a,
  address = {Beyrouth, Lebanon},
  author = {Shahin, Ahmad and Demko, Christophe and Ménard, Michel and Coisne, Damien},
  booktitle = {Proceedings of {ALMA 1996 CONVENTION}},
  month = apr,
  title = {A global device for time correction, flow velocity analyze and three dimensional reconstruction of color {D}oppler imaging.},
  year = {1996}
}

Reconstruction tridimensionnelle de l’imagerie Doppler couleur avec transfert numérique total

Damien Coisne, Michel Ménard, Christophe Demko, and 4 more authors

Feb 1996

Bib

@misc{medical:Coisne1996,
  author = {Coisne, Damien and Ménard, Michel and Demko, Christophe and Christiaens, L. and Valy, Y. and Allai, J. and Barraine, R.},
  howpublished = {Symposium sur l'imagerie cardiovasculaire, {P}oitiers, {F}uturoscope},
  month = feb,
  title = {Reconstruction tridimensionnelle de l'imagerie {D}oppler couleur avec transfert numérique total},
  year = {1996}
}

Minimization of a Priori Knowledge for the Design of the Decision Stage of a Pattern Recognition System (submitted)

Pierre Loonis, Michel Ménard, and Christophe Demko

In International Conference on Acoustics, Speech and Signal Processing, May 1996

Bib

@inproceedings{classification:Loonis1996,
  author = {Loonis, Pierre and Ménard, Michel and Demko, Christophe},
  booktitle = {International Conference on Acoustics, Speech and Signal Processing},
  month = may,
  title = {Minimization of a Priori Knowledge for the Design of the Decision Stage of a Pattern Recognition System (submitted)},
  year = {1996}
}

Une nouvelle Approche de la caractérisation de formes 2-D pour l’aide au diagnostic

Ahmad Shahin, Michel Ménard, Christophe Demko, and 1 more author

In Actes du 8ème Forum Jeunes chercheurs. Génie Biologique et Médical, May 1996

Bib

@inproceedings{fuzzy:Shahin1996d,
  address = {Toulouse, France},
  author = {Shahin, Ahmad and Ménard, Michel and Demko, Christophe and Eboueya, Michel},
  booktitle = {Actes du 8ème {F}orum {J}eunes chercheurs. {G}énie {B}iologique et {M}édical},
  title = {Une nouvelle Approche de la caractérisation de formes 2-{D} pour l'aide au diagnostic},
  year = {1996}
}

Apport de la logique floue pour le traitement d’ images Doppler couleur dans l’objectif de l’analyse des vitesses du flux sanguin intra-cardiaque

Ahmad Shahin, Michel Ménard, and Christophe Demko

In Actes des 5ème journées ORASIS, May 1996

Bib

@inproceedings{fuzzy:Shahin1996c,
  address = {Clermont-Ferrand, France},
  author = {Shahin, Ahmad and Ménard, Michel and Demko, Christophe},
  booktitle = {Actes des 5ème journées {ORASIS}},
  title = {Apport de la logique floue pour le traitement d' images Doppler couleur dans l'objectif de l'analyse des vitesses du flux sanguin intra-cardiaque},
  year = {1996}
}

1995

Utilisation des informations spatiales dans l’extraction des caracteristiques sur des images binaires par segmentation floue

Ahmad Shahin, Christophe Demko, and Michel Ménard

Nov 1995

Bib

@techreport{fuzzy:Shahin1995a,
  address = {La Rochelle, France},
  author = {Shahin, Ahmad and Demko, Christophe and Ménard, Michel},
  institution = {Université de {L}a {R}ochelle, {L}aboratoire d'{I}nformatique et d'{I}magerie {I}ndustrielle},
  month = nov,
  title = {Utilisation des informations spatiales dans l'extraction des caracteristiques sur des images binaires par segmentation floue},
  type = {Rapport de recherche interne},
  year = {1995}
}

Méthode d’extraction de paramètres flous. Influence du nombre de régions et du choix d’opérateurs triangulaires

Ahmad Shahin, Christophe Demko, and Damien Coisne

In Actes des Rencontres francophones sur la Logique Floue et ses Applications, Nov 1995

Bib

@inproceedings{fuzzy:Shahin1995b,
  address = {Paris, France},
  author = {Shahin, Ahmad and Demko, Christophe and Coisne, Damien},
  booktitle = {Actes des {R}encontres francophones sur la {L}ogique {F}loue et ses {A}pplications},
  month = nov,
  title = {Méthode d'extraction de paramètres flous. Influence du nombre de régions et du choix d'opérateurs triangulaires},
  year = {1995}
}

Optimization of information partitioning for a multi-classifier neural network fusion

Pierre Loonis, Michel Ménard, and Christophe Demko

In , Nov 1995

Bib

@inproceedings{information:Loonis1995,
  author = {Loonis, Pierre and Ménard, Michel and Demko, Christophe},
  journal = {{IEEE} {W}orld {W}isepersons {W}orkshop on {F}uzzy {L}ogic and Neural Networks/Evolutionary Computation},
  month = nov,
  title = {Optimization of information partitioning for a multi-classifier neural network fusion},
  year = {1995}
}

Isomorphism of Fuzzy Structures: A New Method for Image Classification

Christophe Demko, Pierre Loonis, and El-Hadi Zahzah

In Scandinavian Conference on Image Analysis, Jun 1995

Bib

@inproceedings{matching:Demko1995b,
  address = {Uppsala, Sweden},
  author = {Demko, Christophe and Loonis, Pierre and Zahzah, El-Hadi},
  booktitle = {{S}candinavian {C}onference on {I}mage {A}nalysis},
  month = jun,
  pages = {297–304},
  title = {Isomorphism of Fuzzy Structures: A New Method for Image Classification},
  volume = {1},
  year = {1995}
}

Interprétation d’image par mise en correspondance de structures floues

Christophe Demko

May 1995

45 min.

Bib

@misc{fuzzy:Demko1995c,
  author = {Demko, Christophe},
  howpublished = {{IRIT} ({T}oulouse)},
  month = may,
  note = {45 min.},
  title = {Interprétation d'image par mise en correspondance de structures floues},
  year = {1995}
}

Image understanding using fuzzy isomorphism of fuzzy structures

Christophe Demko, and El-Hadi Zahzah

In Proceedings of the International Joint Conference of the fourth IEEE International Conference on Fuzzy Systems and the Second International Fuzzy Engineering Symposium, Mar 1995

Bib

@inproceedings{fuzzy:Demko1995a,
  address = {Yokohama, Japan},
  author = {Demko, Christophe and Zahzah, El-Hadi},
  booktitle = {Proceedings of the {I}nternational {J}oint {C}onference of the fourth {IEEE} {I}nternational {C}onference on {F}uzzy {S}ystems and the {S}econd {I}nternational {F}uzzy {E}ngineering {S}ymposium},
  month = mar,
  pages = {1665–1672},
  title = {Image understanding using fuzzy isomorphism of fuzzy structures},
  year = {1995}
}

Apprentissage en reconnaissance structurelle des formes

Christophe Demko

Feb 1995

45 min.

Bib

@misc{matching:Demko1995a,
  author = {Demko, Christophe},
  howpublished = {{PRC-CHM}/{GT}2 {O}ral {C}ommunication},
  month = feb,
  note = {45 min.},
  title = {Apprentissage en reconnaissance structurelle des formes},
  year = {1995}
}

1994

Interprétation d’images par isomorphisme flou de structures floues

Christophe Demko

Oct 1994

Bib

@techreport{fuzzy:Demko1994a,
  address = {La Rochelle, France},
  author = {Demko, Christophe},
  institution = {Université de {L}a {R}ochelle, {L}aboratoire d'{I}nformatique et d'{I}magerie {I}ndustrielle},
  month = oct,
  number = {TR-94-03},
  title = {Interprétation d'images par isomorphisme flou de structures floues},
  type = {Rapport de recherche interne},
  year = {1994}
}

Interprétation d’image par isomorphisme flou de structures floues

Christophe Demko

Oct 1994

45 min.

Bib

@misc{fuzzy:Demko1994b,
  author = {Demko, Christophe},
  howpublished = {{PRC-CHM}/{GT}2 {O}ral {C}ommunication},
  month = oct,
  note = {45 min.},
  title = {Interprétation d'image par isomorphisme flou de structures floues},
  year = {1994}
}

Apprentissage en reconnaissance structurelle des formes

Christophe Demko

In Actes du Colloque Automatique, Génie Informatique, Images, Jun 1994

Bib

@inproceedings{matching:Demko1994,
  address = {Poitiers, France},
  author = {Demko, Christophe},
  booktitle = {Actes du {C}olloque {A}utomatique, {G}énie {I}nformatique, {I}mages},
  month = jun,
  pages = {263–266},
  title = {Apprentissage en reconnaissance structurelle des formes},
  year = {1994}
}

1993

Le plus grand sous-graphe commun de deux graphes: un algorithme pour l’acquisition

Christophe Demko, and Philippe Trigano

In Actes de l’Atelier d’Ingénérie des Connaissances et des Données, Jan 1993

Bib

@inproceedings{matching:Demko1993,
  address = {Strasbourg, France},
  author = {Demko, Christophe and Trigano, Philippe},
  booktitle = {Actes de l'{A}telier d'{I}ngénérie des {C}onnaissances et des {D}onnées},
  month = jan,
  pages = {141–151},
  title = {Le plus grand sous-graphe commun de deux graphes: un algorithme pour l'acquisition},
  year = {1993}
}

1992

Contribution à la Gestion du Contexte pour un Système de Compréhension Automatique de la Langue

Christophe Demko

Dec 1992

Bib

@phdthesis{matching:Demko1992b,
  address = {Compiègne, France},
  author = {Demko, Christophe},
  month = dec,
  school = {{U}niversité de {T}echnologie de {C}ompiègne},
  title = {Contribution à la Gestion du Contexte pour un Système de Compréhension Automatique de la Langue},
  type = {Thèse de doctorat},
  year = {1992}
}

Apprentissage de nouveaux contextes à partir de textes

Christophe Demko

Nov 1992

Bib

@misc{matching:Demko1992a,
  author = {Demko, Christophe},
  howpublished = {{GRACQ}/{TEXT} {O}ral {C}ommunication},
  month = nov,
  title = {Apprentissage de nouveaux contextes à partir de textes},
  year = {1992}
}

1991

LCS: a natural language comprehension system

Philippe Trigano, Bénédicte Talon, Didier Baltazart, and 2 more authors

In Proceedings of SPIE Applications of artificial intelligence IX, Nov 1991

Bib

@inproceedings{language:Trigano1991,
  author = {Trigano, Philippe and Talon, Bénédicte and Baltazart, Didier and Demko, Christophe and Newstead, Emma},
  booktitle = {Proceedings of {SPIE} {A}pplications of artificial intelligence {IX}},
  editor = {Trivedi, Mohan M.},
  title = {{LCS}: a natural language comprehension system},
  volume = {1468},
  year = {1991}
}