Publications

2010

• P Bosc, and O Pivert (2010). On some uses of a stratified divisor in an ordinal framework In: Uncertainty Approaches for Spatial Data Modeling and Processing: A Decision Support Perspective, edited by F. Petry and J. Kacprzyk and A. Yazici. Springer.
• P Bosc, O Pivert, L Liétard, and A Mokhtari (2010). Extending relational algebra to handle bipolarity In: Proc. of the 25th ACM Symposium on Applied Computing (SAC 2010), Sierre, Switzerland, pages 1717–1721.
• P Bosc, O Pivert, and G Smits (2010). A model based on outranking for database preference queries In: Proc. of the 13th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU’10), Dortmund, Germany.
• P Bosc, A Hadjali, O Pivert, and G Smits (2010). Trimming plethoric answers to fuzzy queries: An approach based on predicate correlation In: Proc. of the 13th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU’10), Dortmund, Germany.
• P Bosc, O Pivert, and H Prade (2010). A possibilistic logic view of preference queries to an uncertain database In: Proc. of the 19th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’10), Barcelona, Spain.
• P Bosc, O Pivert, and G Smits (2010). A database preference query model based on a fuzzy outranking relation In: Proc. of the 19th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’10), Barcelona, Spain.
• P Bosc, and O Pivert (2010). On a fuzzy group-by clause in SQLf In: Proc. of the 19th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’10), Barcelona, Spain.
• P Bosc, A Hadjali, O Pivert, and G Smits (2010). Une approche fondée sur la corrélation entre prédicats pour le traitement des réponses pléthoriques In: Actes de la 10ème Conférence Internationale Francophone sur l’Extraction et la Gestion des Connaissances (EGC 2010), Hammamet, Tunisie.
• A Hadjali, A Mokhtari, and O Pivert (2010). A fuzzy-rule-based approach to contextual preference queries In: Proc. of the 13th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU’10), Dortmund, Germany.
• O Pivert, H Jaudoin, C Brando, and A Hadjali (2010). A Method Based on Query Caching and Predicate Substitution for the Treatment of Failing Database Queries In: ICCBR, Alessandrio, Italy.
• L Ughetto, G Pasi, V Claveau, O Pivert, and P Bosc (2010). Implication in information retrieval systems In: Proc. of the 9th International Conference on Adaptivity, Personalization and Fusion of Heterogeneous Information (RIAO’10), Paris, France.

2009

• P Bosc, A Hadjali, and O Pivert (2009). Incremental controlled relaxation of failing flexible queries Journal of Intelligent Information Systems 33(3):261–283.
• P Bosc, O Pivert, and D Rocacher (2009). Tolerant division queries and possibilistic database querying Fuzzy Sets and Systems 160(15):2120–2140.
• P Bosc, O Pivert, and O Soufflet (2009). Stratified division queries involving ordinal user preferences In: Proc. of the 24th Annual ACM Symposium on Applied Computing (ACM SAC’09), Honolulu, Hawaii, USA, pages 1748–1749.
• P Bosc, V Claveau, O Pivert, and L Ughetto (2009). Graded-inclusion-based information retrieval systems In: Proc. of the 31st European Conference on Information Retrieval (ECIR’09), Toulouse, France, pages 252–263.
• P Bosc, O Pivert, and O Soufflet (2009). Anti-division queries with ordinal layered preferences In: Proc. of the 10th European Conference on Symbolic and Quantitative Approaches to Reasoning with Uncertainty (ECSQARU’09), LNAI 5590, Verona, Italy, pages 769–780.
• P Bosc, C Brando, A Hadjali, H Jaudoin, and O Pivert (2009). Semantic proximity between queries and the empty answer problem In: Proc. of the Joint IFSA World Congress (IFSA’09) and the 6th Conference of the European Society of Fuzzy Systems and Technology (EUSFLAT’09), Lisbon, Portugal, pages 259–264.
• P Bosc, and O Pivert (2009). On a possibilistic database model with incomplete possibility distributions In: Proc. of the 28th International Conference of the North American Fuzzy Information Processing Society (NAFIPS’09), Cincinnati, Ohio, USA, pages 1–6.
• P Bosc, L Ughetto, O Pivert, and V Claveau (2009). Implication-based and cardinality-based inclusions in information retrieval In: Proc. of the 18th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’09), Jeju, South Korea, pages 2088–2093.
• P Bosc, O Pivert, and A Mokhtari (2009). On fuzzy queries with contextual predicates In: Proc. of the 18th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’09), Jeju, South Korea, pages 484–489.
• P Bosc, O Pivert, and A Mokhtari (2009). Top-k queries with contextual fuzzy preferences In: Proc. of the 20th Int. Conference on Database and Expert Systems Applications (DEXA’09), LNCS 5690, Linz, Austria, pages 847–854.
• P Bosc, O Pivert, and O Soufflet (2009). On three classes of division queries involving ordinal preferences In: Proc. of the 18th International Symposium on Methodologies for Intelligent Systems (ISMIS’09), LNAI 5722, Prague, Czech Republic, pages 311–320.
• P Bosc, and O Pivert (2009). On two interpretations of competitive conditional fuzzy preferences In: Proc. of the 1st International Conference on Fuzzy Computation (ICFC’09), Madeira, Portugal, pages 71–74.
• P Bosc, O Pivert, and H Prade (2009). A model based on possibilistic certainty levels for incomplete databases In: Proc. of the 3rd International Conference on Scalable Uncertainty Management (SUM’09), Washington DC, USA, pages 80–94.
• P Bosc, O Pivert, and G Smits (2009). A flexible querying approach based on outranking and classification In: Proc. of the 8th International Conference on Flexible Query Answering Systems (FQAS’09), Roskilde, Denmark, pages 1–12.
• P Bosc, and O Pivert (2009). About bipolar division operators In: Proc. of the 8th International Conference on Flexible Query Answering Systems (FQAS’09), Roskilde, Denmark, pages 572–582.
• P Bosc, and O Pivert (2009). Functional dependencies over possibilistic databases: An interpretation based on the possible worlds semantics In: Proc. of the 3rd Workshop on the Management of Uncertain Data (MUD’09), in conjunction with VLDB’09, Lyon, France, pages 1–15.
• H Jaudoin, P Colomb, and O Pivert (2009). Ranking approximate query rewritings based on views In: Proc. of the 8th International Conference on Flexible Query Answering Systems (FQAS’09), Roskilde, Denmark, pages 13–24.
• H Jaudoin, P Colomb, and O Pivert (2009). Réécriture tolérante de requ\^etes en termes de vues In: Actes des 24èmes Journées Bases de Données Avancées (BDA’09), Namur, Belgium.
• H Jaudoin, F Flouvat, J Petit, and F Toumani (2009). Towards a Scalable Query Rewriting Algorithm in Presence of Value Constraints J. Data Semantics 12:37–65.
• H Jaudoin, and M Schneider (2009). Automatic Generation of P2P Mappings between Sources Schemas In: ISMIS, pages 139–150.
• A Mokhtari, O Pivert, and A Hadjali (2009). An approach to personalized route planning based on fuzzy sets In: Proc. of the International Scientific Conference on Mobility and Transport (mobil.TUM 2009), Munich, Germany.
• A Mokhtari, O Pivert, and A Hadjali (2009). Integrating complex user preferences into a route planner: A fuzzy-set-based approach In: Proc. of the Joint IFSA World Congress (IFSA’09) and the 6th Conference of the European Society of Fuzzy Systems and Technology (EUSFLAT’09), Lisbon, Portugal, pages 501–506.
• A Mokhtari, O Pivert, A Hadjali, and P Bosc (2009). Towards a route planner capable of dealing with complex bipolar preferences In: Proc. of the 12th IEEE Conference on Intelligent Transportation Systems (IEEE ITSC’09), St. Louis, MO, USA, pages 556–561.
• A Mokhtari, O Pivert, and A Hadjali (2009). Vers un système de planification d’itinéraire intégrant des préférences complexes In: Actes de l’atelier PeCUSI 2009 conjoint à INFORSID 2009, Toulouse, France, pages 39–50.
• A Mokhtari, O Pivert, and A Hadjali (2009). Vers un langage de requ\^ete flou pour la planification d’itinéraire In: Actes des Rencontres Francophones sur la Logique Floue et ses Applications (LFA 2009), Annecy, France, pages 33–40.
• L Ughetto, O Pivert, V Claveau, and P Bosc (2009). Système de recherche d’information à base d’inclusion graduelle In: Actes de la 6ème Conférence en Recherche d’Information et Applications (CORIA’09), Presqu’\^ile de Giens, France, pages 235–250.
• L Ughetto, O Pivert, V Claveau, and P Bosc (2009). Recherche d’information et inclusions graduelles In: Actes des Rencontres Francophones sur la Logique Floue et ses Applications (LFA 2009), Annecy, France, pages 125–132.

2008

• No authors specified (2008). From Knowledge representation to Information Processing and Management — Selected Papers from the French Fuzzy Days (LFA 2006), Special Issue of Fuzzy Sets and Systems Elsevier.
• P Bosc, A Hadjali, and O Pivert (2008). Empty versus overabundant answers to flexible relational queries Fuzzy Sets and Systems, Special Issue on Advances in Intelligent Databases and Information Systems 159(12):1450–1467.
• P Bosc, and O Pivert (2008). On two qualitative approaches to tolerant inclusion operators Fuzzy Sets and Systems 159(21):2786–2805.
• P Bosc, A Hadjali, and O Pivert (2008). La notion de division tolérante et son intér\^et pour remédier aux réponses vides Ingénierie des Systèmes d’Information 13(5):131–154.
• P Bosc, NI Hssaien, and O Pivert (2008). On the evaluation of cardinality-based generalized yes/no queries In: Intelligent Techniques and Tools for Novel System Architectures, Series: Studies in Computational Intelligence, edited by P. Chountas and J. Kacprzyk and I. Petrounias. Springer Verlag, Heidelberg, Germany, pages 65–79.
• P Bosc, A Hadjali, and O Pivert (2008). On the versatility of fuzzy sets for modeling flexible queries In: Handbook of Research on Fuzzy Information Processing in Databases, edited by J. Galindo. Information Science Reference, Hershey, PA, USA, pages 143–166.
• P Bosc, A Hadjali, and O Pivert (2008). Overabundant answers to flexible queries — A proximity-based intensification approach In: Uncertainty and Intelligent Information Systems, edited by B. Bouchon-Meunier and R.R. Yager and C. Marsala and M. Rifqi. World Scientific Publishing, Singapore, pages 273–287.
• P Bosc, A Hadjali, and O Pivert (2008). Cooperative answering to flexible queries via a tolerance relation In: Lecture Notes on Artificial Intelligence 4994 (Proc. of ISMIS’08). Springer-Verlag, pages 288–297.
• P Bosc, and O Pivert (2008). On the division operator for probabilistic and possibilistic relational databases In: Proc. of the 17th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’08), Hong Kong, China, pages 110–116.
• P Bosc, A Hadjali, and O Pivert (2008). Exceptions and resemblance: two keys for tolerant division operators In: Proc. of the 27th International Conference of the North American Fuzzy Information Processing Society (NAFIPS’08), New York, New York, USA.
• P Bosc, A Hadjali, and O Pivert (2008). Graded tolerant inclusion and its axiomatization In: Proc. of the 12th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU’08), Malaga, Spain.
• P Bosc, A Hadjali, and O Pivert (2008). An approach to competitive conditional fuzzy preferences in database flexible querying In: Proc. of the 4th IEEE International Conference on Intelligent Systems (IEEE IS’2008), Varna, Bulgaria.
• P Bosc, and O Pivert (2008). On a parameterized tolerant antidivision operator for database flexible querying In: Lecture Notes on Computer Science 5181 (Proc. of DEXA’08). Springer-Verlag, pages 652–659.
• P Bosc, and O Pivert (2008). A family of tolerant antidivision operators for database fuzzy querying In: Lecture Notes on Artificial Intelligence 5291 (Proc. of SUM’08). Springer-Verlag, pages 92–105.
• P Bosc, and O Pivert (2008). On the use of tolerant graded inclusions in information retrieval In: Actes de la 5ème Conférence en Recherche d’Information et Applications (CORIA’08), Trégastel, France, pages 321–336.
• P Bosc, A Hadjali, O Pivert, and O Soufflet (2008). Préférences floues compétitives et conditionnelles pour l’interrogation flexible de bases de données In: Actes des Rencontres Francophones sur la Logique Floue et ses Applications (LFA 2008), Lens, France.
• P Bosc, and O Pivert (2008). Un modèle de base de données possibiliste avec distributions de possibilité incomplètes In: Actes des Rencontres Francophones sur la Logique Floue et ses Applications (LFA 2008), Lens, France.
• P Bosc, O Pivert, and O Soufflet (2008). Top-k division à préférences ordinales In: Actes des 23èmes Journées Bases de Données Avancées (BDA’08), Guilherand-Granges, France.
• P Bosc, A Hadjali, and O Pivert (2008). Une approche coopérative pour le traitement des requ\^etes flexibles à réponse vide ou pléthorique In: Actes des 23èmes Journées Bases de Données Avancées (BDA’08), Guilherand-Granges, France.
• P Colomb, and H Jaudoin (2008). FlexIS : vers un système d’intégration d’information flexible In: BDA-demonstration.
• A Hadjali, and O Pivert (2008). Towards fuzzy query answering using fuzzy views — A graded-subsumption-based approach In: Lecture Notes on Artificial Intelligence 4994 (Proc. of ISMIS’08). Springer-Verlag, pages 268–277.

2007

• P Bosc, and O Pivert (2007). About yes/no queries against possibilistic databases International Journal of Intelligent Systems 22:691–722.
• P Bosc, O Pivert, and D Rocacher (2007). About quotient and division of crisp and fuzzy relations Journal of Intelligent Information Systems 29(2):185–210.
• P Bosc, O Pivert, and D Rocacher (2007). Characterizing the result of the division of fuzzy relations International Journal of Approximate Reasoning, Special Issue on Imprecision and Uncertainty in Intelligent Systems 45:511–530.
• P Bosc, and O Pivert (2007). About possibilistic queries and their evaluation IEEE Transactions on Fuzzy Systems 15(3):439–452.
• P Bosc, A Hadjali, and O Pivert (2007). Weakening of fuzzy relational queries: an absolute proximity relation-based approach Mathware & Soft Computing 14(1):35–55.
• P Bosc, D Dubois, A Hadjali, O Pivert, and H Prade (2007). Adjusting the core and/or the support of a fuzzy set — A new approach to fuzzy modifiers In: Proc. of the 16th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’07), London, UK.
• P Bosc, A Hadjali, and O Pivert (2007). On a proximity-based tolerant inclusion In: Proc. of the 5th Conference of the European Society for Fuzzy Logic and Technology (EUSFLAT’07), Ostrava, Czech Republic, pages 343–350.
• P Bosc, NI Hssaien, and O Pivert (2007). About the division operator in a possibilistic database framework In: Proc. of the 26th International Conference of the North American Fuzzy Information Processing Society (NAFIPS’07), San Diego, California, USA.
• P Bosc, A Hadjali, H Jaudoin, and O Pivert (2007). Flexible querying of multiple data sources through fuzzy summaries In: Proc. of the 2nd International Workshop on Flexible Database and Information System Technology (FlexDBIST’07), in conjunction with DEXA’07, Regensburg, Germany, pages 350–354.
• P Bosc, NI Hssaien, and O Pivert (2007). About the processing of division queries addressed to possibilistic databases In: Proc. of the 1st Workshop on the Management of Uncertain Data (MUD’07), in conjunction with VLDB’07, Vienna, Austria, pages 48–62.
• P Bosc, A Hadjali, and O Pivert (2007). Preference-based divisions to overcome empty answers In: Proc. of the 3rd Multidisciplinary Workshop on Advances on Preference Handling (M-PREF’07), in conjunction with VLDB’07, Vienna, Austria.
• P Bosc, D Dubois, A Hadjali, O Pivert, and H Prade (2007). Une nouvelle approche pour les modificateurs flous fondée sur l’ajustement du noyau et/ou du support In: Actes des Rencontres Francophones sur la Logique Floue et ses Applications (LFA 2007), N\^imes, France.
• P Bosc, A Hadjali, and O Pivert (2007). Tolerant division operators to overcome empty answers In: Actes des 22èmes Journées Bases de Données Avancées (BDA’07), Marseille, France.
• K, H Jaudoin, and M Schneider (2007). Génération automatique de correspondances sémantiques entre schémas In: INFORSID, pages 261–276.

2006

• No authors specified (2006). Rencontres Francophones sur la Logique Floue et ses Applications (LFA 2006) Cépaduès Editions.
• P Bosc, and O Pivert (2006). About approximate inclusion and its axiomatization Fuzzy Sets and Systems 157(11):1438–1454.
• P Bosc, N Liétard, and O Pivert (2006). About the processing of possibilistic queries involving a difference operation Fuzzy Sets and Systems 157(12):1622–1640.
• P Bosc, O Pivert, and D Rocacher (2006). A propos de division usuelle et approchée de relations floues Technique et Science Informatiques 25:631–660.
• P Bosc, and O Pivert (2006). Vacuity-oriented generalized yes/no queries addressed to possibilistic databases In: Flexible Databases Supporting Imprecision and Uncertainty, edited by G. Bordogna and G. Psaila. Springer Verlag, pages 55–74.
• P Bosc, A Hadjali, and O Pivert (2006). About overabundant answers to flexible queries In: Proc. of the 11th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU’06), Paris, France, pages 2221–2228.
• P Bosc, and O Pivert (2006). About queries addressed to possibilistic databases In: Proc. of the International Workshop on Inconsistency and Incompleteness in Databases (IIDB’06), Munich, Germany, pages 114–118.
• P Bosc, and O Pivert (2006). On an approximate-inclusion-based difference operator — Application to the division of fuzzy relations In: Proc. of the 15th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’06), Vancouver, Canada.
• P Bosc, A Hadjali, and O Pivert (2006). Relaxation paradigm in a flexible querying context In: Proc. of the 7th International Conference on Flexible Query Answering Systems (FQAS’06), Milano, Italy, pages pp. 39–50.
• P Bosc, A Hadjali, and O Pivert (2006). Modelling fuzzy modifiers by means of a proximity relation In: Proc. of the 25th International Conference of the North American Fuzzy Information Processing Society (NAFIPS’06), Montréal, Canada.
• P Bosc, and O Pivert (2006). On two approaches to approximate inclusion operators In: Proc. of the 25th International Conference of the North American Fuzzy Information Processing Society (NAFIPS’06), Montréal, Canada.
• P Bosc, N Liétard, and O Pivert (2006). On the evaluation of cardinality-based generalized yes/no queries In: Proc. of the 3rd IEEE International Conference on Intelligent Systems (IEEE IS’2006), Westminster, Great Britain, pages 202–207.
• P Bosc, N Liétard, and O Pivert (2006). About generalized yes/no queries in the possibilistic and probabilistic database contexts In: Proc. of the 2nd Twente Data Management Workshop on Uncertainty in Databases (TDM’06), Enschede, Netherlands, pages 3–10.
• P Bosc, and O Pivert (2006). On a qualitative approximate inclusion — Application to the division of fuzzy relations In: Proc. of the 1st International Workshop on Flexible Database and Information System Technology (FlexDBIST’06), in conjunction with DEXA’06, Cracow, Poland, pages 430–434.
• P Bosc, N Liétard, and O Pivert (2006). About inclusion-based generalized yes/no queries in a possibilistic database context In: Proc. of the 16th International Symposium on Methodologies for Intelligent Systems (ISMIS’06), Bari, Italy, pages 284–289.
• P Bosc, N Liétard, and O Pivert (2006). On the evaluation of membership-based yes/no queries involving a negation in the context of possibilistic databases In: Proc. of the Joint 3rd International Conference on Soft Computing and Intelligent Systems and 7th International Symposium on advanced Intelligent Systems (SCIS & ISIS 2006), Tokyo, Japan, pages 2113–2118.
• P Bosc, O Pivert, and D Rocacher (2006). A propos de la sémantique de divers opérateurs de division de relations In: Actes du 24ème Congrès INFORSID, Hammamet, Tunisie, pages 799–814.
• P Bosc, N Liétard, and O Pivert (2006). Evaluation de requ\^etes oui/non à inclusion adressées à des bases de données possibilistes In: Actes des Rencontres Francophones sur la Logique Floue et ses Applications (LFA 2006), Toulouse, France, pages 187–194.
• P Bosc, and O Pivert (2006). A propos d’un opérateur d’inclusion approchée qualitative — Application à la division de relations floues In: Actes des Rencontres Francophones sur la Logique Floue et ses Applications (LFA 2006), Toulouse, France, pages 163–170.
• H Jaudoin, and F Flouvat (2006). Techniques de fouille de données pour la réécriture de requ\^etes en présence de contraintes de valeurs In: EGC, pages 77–88.

2005

• P Bosc, and O Pivert (2005). About projection-selection-join queries addressed to possibilistic relational databases IEEE Transactions on Fuzzy Systems 13(1):124–139.
• P Bosc, O Pivert, and D Rocacher (2005). On the approximate division of fuzzy relations In: Proc. of the 15th International Symposium on Methodologies for Intelligent Systems (ISMIS’05), Saratoga Springs, New York, USA, pages 314–322.
• P Bosc, and O Pivert (2005). Approximate inclusion between fuzzy sets — Application to the division of fuzzy relations In: Proc. of the 14th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’05), Reno, Nevada, USA, pages 561–566.
• P Bosc, and O Pivert (2005). About the processing of possibilistic and probabilistic queries In: Lecture Notes in Artificial Intelligence 3571 (Proc. of ECSQARU’05), edited by L. Godo. Springer-Verlag, pages 812–823.
• P Bosc, O Pivert, and D Rocacher (2005). Characterizing the result of the division of fuzzy relations In: Proc. of the 24th International Conference of the North American Fuzzy Information Processing Society (NAFIPS’05), Ann Arbor, Michigan, USA.
• P Bosc, N Liétard, and O Pivert (2005). About cardinality-based possibilistic queries against possibilistic databases In: Proc. of the Joint 4th Conference of the European Society for Fuzzy Logic and Technology (EUSFLAT’05) and 11th Rencontres sur la Logique Floue et ses Applications (LFA’05), Barcelona, Spain.
• P Bosc, A Hadjali, and O Pivert (2005). Weakening of fuzzy relational queries: An absolute proximity relation-based approach In: Proc. of the Joint 4th Conference of the European Society for Fuzzy Logic and Technology (EUSFLAT’05) and 11th Rencontres sur la Logique Floue et ses Applications (LFA’05), Barcelona, Spain.
• P Bosc, A Hadjali, and O Pivert (2005). Towards a tolerance-based technique for cooperative answering of fuzzy queries against regular database In: Lecture Notes in Computer Science 3760 (Proc. of CoopIS 2005), edited by R. Meersman and Z. Tari. Springer-Verlag, pages 256–273.
• H Jaudoin, J Petit, C Rey, M Schneider, and F Toumani (2005). Query rewriting using views in presence of value constraints In: Description Logics.

2004

• P Bosc, L Liétard, O Pivert, and D Rocacher (2004). Gradualité et imprécision dans les bases de données Editions Ellipses, Paris.
• P Bosc, A Hadjali, and O Pivert (2004). Fuzzy closeness relation as a basis for weakening fuzzy relational queries In: Proc. of the 6th International Conference on Flexible Query Answering Systems (FQAS’04), Lyon, France, pages 41–53.
• P Bosc, and O Pivert (2004). On a strong representation system for imprecise relational databases In: Proc. of the 10th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU’04), Perugia, Italy, pages 1759–1766.
• P Bosc, and O Pivert (2004). From Boolean to fuzzy algebraic queries in a possibilistic database framework In: Proc. of the 13th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’04), Budapest, Hungary.
• P Bosc, and O Pivert (2004). Possibilistic databases and generalized yes/no queries In: Proc. of the DEXA 2004 Workshop on Supporting Imprecision and Uncertainty in Flexible Databases (SIUFDB-04), Zaragoza, Spain, pages 912–916.
• P Bosc, and O Pivert (2004). About various uses of algebraic queries against possibilistic databases In: Proc. of the Joint 2nd International Conference on Soft Computing and Intelligent Systems and 5th International Symposium on Advanced Intelligent Systems (SCIS-ISIS’04), Yokohama, Japan.
• P Bosc, and O Pivert (2004). Requ\^etes oui/non et données imprécises : du cadre possibiliste au cadre probabiliste In: Actes du 22ème Congrès INFORSID, Biarritz, France, pages 25–40.
• P Bosc, and O Pivert (2004). On a strong representation system for probabilistic and possibilistic databases In: Actes des 20èmes Journées Bases de Données Avancées (BDA’04), Montpellier, France, pages 93–112.
• P Bosc, and O Pivert (2004). A propos du quotient de la division de relations floues In: Actes des Rencontres Francophones sur la Logique Floue et ses Applications (LFA 2004), Nantes, France, pages 207–214.
• P Bosc, and O Pivert (2004). Inclusion approchée entre ensembles flous — Application à la division de relations floues In: Actes des Rencontres Francophones sur la Logique Floue et ses Applications (LFA 2004), Nantes, France, pages 215–222.
• H Jaudoin, M Schneider, and F Vigier (2004). Querying Data Sources in a SuperPeer Data Management System In: FQAS, pages 54–67.
• H Jaudoin (2004). Rewriting queries using views with value integrity constraints In: STAIRS, pages 38–49.
• H Jaudoin, F Toumani, J Petit, and M Schneider (2004). Utilisation d’un cadre de découverte des connaissances pour la réécriture de requ\^etes en présence de contraintes de domaine In: BDA, pages 407–426.

2003

• No authors specified (2003). Fuzzy Sets and Systems, Special issue on Fuzzy Databases Elsevier.
• P Bosc, L Liétard, and O Pivert (2003). Sugeno fuzzy integral as a basis for the interpretation of flexible queries involving monotonic aggregates Information Processing and Management 39:287–306.
• P Bosc, L Duval, and O Pivert (2003). An initial approach to the evaluation of possibilistic queries addressed to possibilistic databases Fuzzy Sets and Systems 140(1):151–166.
• P Bosc, and O Pivert (2003). On the impact of regular functional dependencies when moving to a possibilistic database framework Fuzzy Sets and Systems 140(1):207–227.
• P Bosc, L Liétard, and O Pivert (2003). Bases de Données In: Traitement de données complexes et commande en logique floue, edited by B. Bouchon-Meunier and C. Marsala. Hermès Science, Paris, pages 17–64.
• P Bosc, O Pivert, and L Liétard (2003). On the comparison of aggregates over fuzzy sets In: Intelligent Systems for Information Processing: From Representation to Applications, edited by B. Bouchon-Meunier and L. Foulloy and R.R. Yager. Elsevier, Amsterdam, The Netherlands, pages 141–152.
• P Bosc, and O Pivert (2003). Towards an algebraic query language for possibilistic relations In: Proc. of the 12th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’03), St. Louis, Missouri, USA, pages 671–676.
• P Bosc, L Duval, and O Pivert (2003). About flexible possibilistic queries against possibilistic databases In: Proc. of the 7th World Multi-Conference on Systemics, Cybernetics and Informatics (SCI’2003), Orlando, Florida, USA, pages 299–304.
• P Bosc, and O Pivert (2003). About certainty-based queries against possibilistic databases In: Proc. of the 22nd International Conference of the North American Fuzzy Information Processing Society (NAFIPS’03), Chicago, Illinois, USA, pages 161–166.
• P Bosc, and O Pivert (2003). A propos de l’évaluation de requ\^etes possibilistes In: Actes du 21ème Congrès INFORSID, Nancy, France, pages 317–332.
• P Bosc, and O Pivert (2003). A propos de l’interrogation de bases de données possibilistes In: Actes des Rencontres Francophones sur la Logique Floue et ses Applications (LFA 2003), Tours, France, pages 31–38.
• H Jaudoin, C Rey, F Vigier, and M Schneider (2003). Interoperability of the agricultural information systems: a common ontological approach for various exchange types In: EFITA, Debrecen, Hungary, pages 293–299.
• H Jaudoin, F Vigier, and M Schneider (2003). Agricultural Geographic System Interoperability with Peer-To-Peer In: SpadaGIS, Minalo, Italy, pages CD.

2002

• P Bosc, L Duval, and O Pivert (2002). About possibilistic queries against possibilistic databases In: Proc. of the 17th ACM Symposium on Applied Computing (ACM-SAC’02), Madrid, Spain, pages 807–811.
• P Bosc, and O Pivert (2002). Mixing selections and foreign key joins in queries against possibilistic databases In: Proc. of the 13th International Symposium on Methodologies for Intelligent Systems (ISMIS’02), Lyon, France, pages 194–202.
• P Bosc, L Liétard, and O Pivert (2002). Extending the possibilistic data model with one-level nested relations In: Proc. of the 11th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’02), Honolulu, Hawaii, USA.
• P Bosc, L Liétard, and O Pivert (2002). On the comparison of aggregates over fuzzy sets In: Proc. of the 9th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU’02), Annecy, France, pages 1547–1552.
• P Bosc, D Dubois, O Pivert, H Prade, and Md Calmès (2002). Fuzzy summarization of data using fuzzy cardinalities In: Proc. of the 9th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU’02), Annecy, France, pages 1553–1559.
• P Bosc, and O Pivert (2002). Towards a representation system for possibilistic relations In: Proc. of the 9th Int. Workshop on Knowledge Representation meets Database (KRDB’02), Toulouse, France, pages 67–78.
• P Bosc, and O Pivert (2002). About the projection operator in a possibilistic database framework In: Proc. of the 21st Int. Conf. of the North American Fuzzy Information Processing Society (NAFIPS’02), New Orleans, Louisiana, USA, pages 371–376.
• P Bosc, L Duval, and O Pivert (2002). About selections and joins in possibilistic queries addressed to possibilistic databases In: Proc. of the 13th Int. Conference on Database and Expert Systems Applications (DEXA’02), Aix-en-Provence, France, pages 597–606.
• P Bosc, L Liétard, and O Pivert (2002). On the use of aggregates bearing on fuzzy sets in linguistic summaries In: Proc. of the International Conference on Fuzzy Systems and Knowledge Discovery (FSKD’02), Singapore.
• P Bosc, and O Pivert (2002). Vers un modèle relationnel possibiliste à un niveau de relations imbriquées In: Actes du 20ème Congrès INFORSID, Nantes, France, pages 73–88.
• P Bosc, L Cholvy, D Dubois, N Mouaddib, O Pivert, H Prade, G Raschia, and M- Rousset (2002). Les informations incomplètes dans les bases de données et en intelligence artificielle In: Actes des Assises du PRC-GDR I3, Nancy, France, pages 1–30.
• L Duval, and O Pivert (2002). A propos de requ\^etes possibilistes adressées à des bases de données possibilistes In: Actes des 18èmes Journées Bases de Données Avancées (BDA’02), Evry, France, pages 343–362.

2001

• P Bosc, L Liétard, and O Pivert (2001). A function-based join for the manipulation of possibilistic relations In: Proc. of the ACM Symposium on Applied Computing (ACM-SAC’01), Las Vegas, Nevada, USA, pages 472–476.
• P Bosc, and O Pivert (2001). On some fuzzy extensions of association rules In: Proc. of the Joint 9th IFSA World Congress and 20th NAFIPS International Conference, Vancouver, Canada, pages 1104–1109.
• P Bosc, and O Pivert (2001). At the crossroads of database systems and fuzzy sets In: Proc. of the Joint 9th IFSA World Congress and 20th NAFIPS International Conference, Vancouver, Canada, pages 2114–2119.
• P Bosc, L Duval, and O Pivert (2001). A first approach to possibilistic queries addressed to possibilistic databases In: Proc. of the Joint 9th IFSA World Congress and 20th NAFIPS International Conference, Vancouver, Canada, pages 2452–2457.
• P Bosc, L Liétard, and O Pivert (2001). About querying operations against possibilistic databases In: Proc. of the 5th Multi-Conference on Systemics, Cybernetics and Informatics (SCI’01), Orlando, Florida, USA, pages 335–342.
• P Bosc, O Pivert, and L Liétard (2001). Aggregate operators in database flexible querying In: Proc. of the 10th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’01), Melbourne, Australia.
• P Bosc, D Dubois, O Pivert, and H Prade (2001). On fuzzy association rules based on fuzzy cardinalities In: Proc. of the 10th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’01), Melbourne, Australia.

2000

• P Bosc, and O Pivert (2000). SQLf query functionality on top of a regular relational database management system In: Knowledge Management in Fuzzy Databases, edited by O. Pons and M.A. Vila and J. Kacprzyk. Physica-Verlag, Heidelberg, Germany, pages 171–190.
• P Bosc, L Duval, and O Pivert (2000). Value-based and representation-based querying of possibilistic databases In: Recent Research Issues on Fuzzy Databases, edited by G. Bordogna and G. Pasi. Physica-Verlag, Heidelberg, Germany, pages 3–27.
• P Bosc, L Liétard, and O Pivert (2000). An approach to functional dependencies in fuzzy databases In: Proc. of the 9th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’2000), San Antonio, Texas, USA, pages 917–922.
• P Bosc, L Liétard, and O Pivert (2000). Evaluation of flexible queries: the quantified statement case In: Proc. of the 8th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU’2000), Madrid, Spain, pages 1115–1122.
• P Bosc, L Liétard, and O Pivert (2000). About ill-known data and equi-join operations In: Proc. of the 4th International Conference on Flexible Query Answering Systems (FQAS’2000), Warsaw, Poland, pages 65–74.
• P Bosc, and O Pivert (2000). Deux types de sémantique pour les requ\^etes adressées à des bases de données possibilistes In: Actes des Rencontres francophones sur la logique floue et ses applications (LFA’2000), La Rochelle, France, pages 289–296.
• P Bosc, D Dubois, O Pivert, and H Prade (2000). Résumés de données et ensembles flous — Principe d’une nouvelle approche In: Actes des Rencontres Francophones sur la Logique Floue et ses Applications (LFA’2000), La Rochelle, France, pages 333–340.
• O Pivert (2000). Applications de la théorie des ensembles flous dans le domaine des bases de données Habilitation à diriger des recherches, Université de Rennes 1.

1999

• P Bosc, L Liétard, and O Pivert (1999). Database Management Systems In: Fuzzy Theory Systems Techniques and Applications, vol. 2, edited by C.T. Leondes. Academic Press, San Diego, CA, USA, pages 631–689.
• P Bosc, B Buckles, F Petry, and O Pivert (1999). Fuzzy Databases In: Fuzzy Sets in Approximate Reasoning and Information Systems, The Handbook of Fuzzy Sets Series, edited by J. Bezdek and D. Dubois and H. Prade. Kluwer Academic Publishers, Dordrecht, The Netherlands, pages 403–468.
• P Bosc, O Pivert, and L Ughetto (1999). On data summaries based on gradual rules In: Lecture Notes in Computer Science 1625 (Proc. of 6th Dortmund Fuzzy Days). Springer-Verlag, pages 512–521.
• P Bosc, and O Pivert (1999). A formal framework for representation-based querying of databases containing ill-known data In: Proc. of the 3rd International ICSC Symposia on Intelligent Industrial Automation (IIA’99) and Soft Computing (SOCO’99), Genova, Italy, pages 705–710.
• P Bosc, O Pivert, and L Ughetto (1999). Database mining for the discovery of extended functional dependencies In: Proc. of the 18th Int. Conf. of the North American Fuzzy Information Processing Society (NAFIPS’99), New York, USA, pages 580–584.
• P Bosc, C Legrand, and O Pivert (1999). About fuzzy query processing — The example of the division In: Proc. of the 8th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’99), Seoul, Korea, pages 592–597.
• P Bosc, and O Pivert (1999). On the specification of representation-based conditions in a context of incomplete databases In: Proc. of the 10th International Conference on Database and Expert Systems Applications (DEXA’99), Florence, Italy, pages 594–603.
• P Bosc, and O Pivert (1999). A new semantics for the division of fuzzy relations in relational databases In: Proc. of the European Society for Fuzzy Logic and Technology Conference (EUSFLAT’99), Palma de Mallorca, Spain, pages 243–246.
• P Bosc, L Duval, and O Pivert (1999). On the filtering of imperfect multimedia information by means of representation-based queries In: Proc. of the 3rd International Conference on Computational Intelligence and Multimedia Applications (ICCIMA’99), New Delhi, India, pages 494–498.
• P Bosc, L Duval, and O Pivert (1999). On two ways of querying disjunctive weighted data In: Actes des 15èmes Journées Bases de Données Avancées (BDA’99), Bordeaux, France, pages 139–158.

1998

• P Bosc, L Liétard, and O Pivert (1998). Bases de données et flexibilité : les requ\^etes graduelles Technique et Science Informatiques 17(3):355–378.
• P Bosc, and O Pivert (1998). Fuzzy Databases In: Handbook of Fuzzy Computation, edited by P. Bonissone and W. Pedricz and E. Ruspini. Institute of Physics Publishing, Bristol, UK, pages F.4.2.1–F.4.2.12.
• P Bosc, and O Pivert (1998). A new approach to the filtering of ill-known data In: Proc. of the 7th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’98), Anchorage, Alaska, USA, pages 1302–1307.
• P Bosc, and O Pivert (1998). Extended functional dependencies, redundancy and update management In: Proc. of the 6th European Congress on Intelligent Techniques and Soft Computing (EUFIT’98), Aachen, Germany, pages 744–748.
• P Bosc, and O Pivert (1998). Flexible queries for regular databases In: Proc. of the 9th Symposium on Information Control in Manufacturing (INCOM’98), Nancy-Metz, France, pages 79–84.
• P Bosc, L Liétard, and O Pivert (1998). Extended functional dependencies as a basis for linguistic summaries In: Lecture Notes in Artificial Intelligence 1510 (Proc. of PKDD’98), edited by J.M. Zytkow and M. Quafafou. Springer Verlag, pages 255–263.
• C Legrand, and O Pivert (1998). Evaluation de la division de relations floues dans un système de gestion de bases de données In: Actes des Rencontres Francophones sur la Logique Floue et ses Applications (LFA’98), Rennes, France, pages 243–252.

1997

• P Bosc, D Dubois, O Pivert, and H Prade (1997). Flexible queries in relational databases — The example of the division operator Theoretical Computer Science 171:281–302.
• P Bosc, and O Pivert (1997). Requ\^etes flexibles et division relationnelle Ingénierie des Systèmes d’Information 5(6):661–690.
• P Bosc, and O Pivert (1997). Extending SQL retrieval features for the handling of flexible queries In: Fuzzy Information Engineering: A Guided Tour of Applications, edited by D. Dubois and H. Prade and R.R. Yager. J. Wiley & Sons, New York, NY, USA, pages 233–251.
• P Bosc, and O Pivert (1997). Fuzzy queries against regular and fuzzy databases In: Flexible Query-Answering Systems, edited by T. Andreasen and H. Christiansen and H.L. Larsen. Kluwer Academic Publishers, Dordrecht, The Netherlands, pages 187–208.
• P Bosc, and O Pivert (1997). On the comparison of imprecise values in fuzzy databases In: Proc. of the 6th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’97), Barcelona, Spain, pages 707–712.
• P Bosc, and O Pivert (1997). On representation-based querying of databases containing ill-known values In: Lecture Notes in Artificial Intelligence 1325 (Proc. of ISMIS’97), edited by Z. Ras and A. Skowron. Springer Verlag, pages 477–486.
• P Bosc, L Liétard, and O Pivert (1997). Functional dependencies revisited under graduality and imprecision In: Proc. of the North American Fuzzy Information Processing Society Conference (NAFIPS’97), Syracuse, New York, USA, pages 57–62.
• P Bosc, L Liétard, and O Pivert (1997). Gradualité, imprécision et dépendances fonctionnelles In: Actes des 13èmes Journées Bases de Données Avancées (BDA’97), Grenoble, France, pages 391–413.

1996

• P Bosc, L Liétard, and O Pivert (1996). Flexible database querying and the division of fuzzy relations Scientia Iranica 2(4):329–340.
• P Bosc, and O Pivert (1996). On the handling of imperfect data in relational database systems — From null values to possibility distributions In: Lecture Notes in Artificial Intelligence 1079 (Proc. of ISMIS’96), edited by Z. Ras and M. Michalewicz. Springer Verlag, pages 408–417.
• P Bosc, and O Pivert (1996). SQLf query functionality on top of a regular relational DBMS In: Proc. of the 6th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU’96), pages 1–6.
• P Bosc, D Dubois, O Pivert, and H Prade (1996). On the connection between fuzzy functional dependencies and redundancy In: Proc. of the 4th European Congress on Intelligent Techniques and Soft Computing (EUFIT’96), Aachen, Germany, pages 803–805.
• P Bosc, and O Pivert (1996). SQLf — A step towards a standard language for regular relational database fuzzy querying In: Proc. of the International Panel Conference on Soft and Intelligent Computing (SIC’96), Budapest, Hungary, pages 23–28.

1995

• T Andreasen, and O Pivert (1995). Improving answers to failing fuzzy relational queries In: Proc. of the 6th International Fuzzy Systems Association World Congress (IFSA’95), Sao Paulo, Brazil, pages 345–348.
• T Andreasen, and O Pivert (1995). Un Mécanisme Coopératif d’Affaiblissement pour les Requ\^etes Relationnelles Floues In: Actes des Rencontres Francophones sur la Logique Floue et ses Applications (LFA’95), pages 134–139.
• P Bosc, and O Pivert (1995). SQLf: a relational database language for fuzzy querying IEEE Transactions on Fuzzy Systems 3(1):1–17.
• P Bosc, and O Pivert (1995). On the efficiency of the alpha-cut distribution method to evaluate simple fuzzy relational queries In: Advances in Fuzzy Systems — Applications and Theory Vol. 4: Fuzzy Logic and Soft Computing, edited by B. Bouchon-Meunier and R.R. Yager and L.A. Zadeh. World Scientific Publishing, Singapore, pages 251–260.
• P Bosc, L Liétard, and O Pivert (1995). Quantified statements and database fuzzy querying In: Fuzziness in Database Management Systems, edited by P. Bosc and J. Kacprzyk. Physica-Verlag, Heidelberg, Germany, pages 275–308.
• P Bosc, D Dubois, O Pivert, and H Prade (1995). Fuzzy division for regular relational databases In: Proc. of the 4th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’95/IFES’95), Yokohama, Japan, pages 729–734.
• P Bosc, L Liétard, and O Pivert (1995). Quantified statements in a flexible query language In: Proc. of the ACM Symposium on Applied Computing (ACM-SAC’95), Nashville, Tennessee, USA, pages 488–492.

1994

• T Andreasen, and O Pivert (1994). On the weakening of fuzzy relational queries In: Lecture Notes in Artificial Intelligence 869 (Proc. of ISMIS’94), edited by Z. Ras and M. Zemankova. Springer Verlag, pages 144–153.
• T Andreasen, and O Pivert (1994). Query weakening by term and connector modification Datalogiske Skrifter, Roskilde University, Denmark 47.
• P Bosc, O Pivert, and K Farquhar (1994). Integrating Fuzzy Queries into an existing Database Management System: An Exemple International Journal of Intelligent Systems 9(5):475–492.
• P Bosc, and O Pivert (1994). Imprecise data management and flexible querying in databases In: Fuzzy Sets, Neural networks and Soft Computing, edited by R.R. Yager and L.A. Zadeh. Van Nostrand Reinhold, New York, NY, USA, pages 368–395.
• P Bosc, and O Pivert (1994). Fuzzy queries and relational databases In: Proc. of the ACM Symposium on Applied Computing (ACM-SAC’94), Phoenix, Arizona, USA, pages 170–174.
• P Bosc, and O Pivert (1994). On the efficiency of the alpha-cut distribution method to evaluate simple fuzzy relational queries In: Proc. of the 5th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU’94), Paris, France, pages 11–16.
• P Bosc, L Liétard, and O Pivert (1994). Soft Querying, a New Feature for Database Management Systems In: Lecture Notes in Computer Science 856 (Proc. of DEXA’94), edited by D. Karagiannis. Springer Verlag, pages 631–640.
• P Bosc, and O Pivert (1994). Quelques aspects de la sémantique et des équivalences de requ\^etes dans le langage SQLf In: Actes des 10èmes Journées Bases de Données Avancées (BDA’94), Clermont-Ferrand, France, pages 367–387.

1993

• P Bosc, and O Pivert (1993). On the evaluation of simple fuzzy relational queries: principles and measures In: Fuzzy Logic: State of the Art, edited by R. Lowen and M. Roubens. Kluwer Academic Publishers, Dordrecht, The Netherlands, pages 355–364.
• P Bosc, and O Pivert (1993). An Approach for a Hierarchical Aggregation of Fuzzy Predicates In: Proc. of the 2nd IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’93), San Francisco, California, USA, pages 1231–1236.
• P Bosc, and O Pivert (1993). Flexible queries, discriminated answers and fuzzy sets In: Proc. of the 5th IFSA World Congress, Seoul, South Korea, pages 525–528.
• P Bosc, L Liétard, and O Pivert (1993). On the Interpretation of Set-Oriented Fuzzy Quantified Queries and their Evaluation in a Database Management System In: Lecture Notes in Artificial Intelligence 689 (Proc. of ISMIS’93), edited by J. Komorowski and Z.W. Ras, pages 209–218.

1992

• P Bosc, and O Pivert (1992). Some Approaches for Relational Databases Flexible Querying International Journal of Intelligent Information Systems 1:323–354.
• P Bosc, and O Pivert (1992). Fuzzy querying in conventional databases In: Fuzzy Logic for the Management of Uncertainty, edited by L.A. Zadeh and J. Kacprzyk. J. Wiley & Sons, New York, NY, USA, pages 645–671.
• P Bosc, and O Pivert (1992). Discriminated answers and databases: Fuzzy sets as a unifying expression means In: Proc. of the 1st IEEE International Conference on Fuzzy Systems (FUZZ-IEEE’92), San Diego, California, USA, pages 745–752.
• P Bosc, and O Pivert (1992). Some properties of alpha-cuts of fuzzy predicates In: Proc. of the 11th Meeting on Cybernetics and Systems Research, Wien, Austria.
• P Bosc, and O Pivert (1992). On the evaluation of fuzzy quantified queries in a database management system In: Proc. of the North American Fuzzy Information Processing Society Conference (NAFIPS’92), Puerto Vallarta, Mexico, pages 478–487.
• P Bosc, and O Pivert (1992). Sur l’utilisation de requ\^etes booléennes pour l’évaluation de requ\^etes relationnelles floues In: Actes des 8èmes Journées Bases de Données Avancées (BDA’92), Trégastel, France, pages 182–203.
• O Pivert (1992). Expression et évaluation de requ\^etes floues dans les bases de données In: Actes des Journées sur les Applications des Ensembles Flous, N\^imes, France, pages 285–292.

1991

• P Bosc, and O Pivert (1991). Some algorithms for evaluating fuzzy relational queries In: Lecture Notes in Computer Science 521 (Proc. of IPMU’90), edited by B. Bouchon-Meunier and R.R. Yager. Springer-Verlag, pages 431–442.
• P Bosc, and O Pivert (1991). About equivalences in SQLf, a relational language supporting imprecise querying In: Proc. of the 1st International Fuzzy Engineering Symposium (IFES’91), Yokohama, Japan, pages 309–320.
• P Bosc, and O Pivert (1991). On the evaluation of simple fuzzy relational queries In: Proc. of the 4th IFSA World Congress, Brussels, Belgium, pages 9–12.
• P Bosc, and O Pivert (1991). Quelques approches d’interrogation flexible de bases de données In: Actes des 7èmes Journées Bases de Données Avancées (BDA’91), Lyon, France, pages 389–408.
• O Pivert (1991). Contribution à l’interrogation flexible de bases de données : expression et évaluation de requ\^etes floues Phd thesis, Université de Rennes 1.

1989

• P Bosc, and O Pivert (1989). Algorithms for flexible selections in relational databases In: Proc. of the Aslib Informatics 10 Conference: Prospects for intelligent retrieval, York, Great Britain, pages 211–225.