Jef Wijsen

Jef Wijsen: Charting the Tractability Frontier of Certain Conjunctive Query Answering. CoRR abs/1301.1003 (2013)

Véronique Bruyère, Olivier Carton, Alexandre Decan, Olivier Gauwin, Jef Wijsen: An aperiodicity problem for multiwords. RAIRO - Theor. Inf. and Applic. 46(1): 33-50 (2012)

Jef Wijsen: Certain conjunctive query answering in first-order logic. ACM Trans. Database Syst. 37(2): 9 (2012)

Wenfei Fan, Floris Geerts, Jef Wijsen: Determining the Currency of Data. ACM Trans. Database Syst. 37(4): 25 (2012)

Alexandre Decan, Fabian Pijcke, Jef Wijsen: Certain Conjunctive Query Answering in SQL. SUM 2012: 154-167

Dany Maslowski, Jef Wijsen: Uncertainty That Counts. FQAS 2011: 25-36

Dany Maslowski, Jef Wijsen: On counting database repairs. LID 2011: 15-22

Marie Agier, Christine Froidevaux, Jean-Marc Petit, Yoan Renaud, Jef Wijsen: On Armstrong-compliant logical query languages. LID 2011: 33-40

Wenfei Fan, Floris Geerts, Jef Wijsen: Determining the currency of data. PODS 2011: 71-82

Jef Wijsen: Towards a Foundation of Data Currency. TIME 2011: 10-11

Jef Wijsen: A remark on the complexity of consistent conjunctive query answering under primary key violations. Inf. Process. Lett. 110(21): 950-955 (2010)

Jef Wijsen: On the first-order expressibility of computing certain answers to conjunctive queries over uncertain databases. PODS 2010: 179-190

Nicolas Markey, Jef Wijsen (Eds.): TIME 2010 - 17th International Symposium on Temporal Representation and Reasoning, Paris, France, 6-8 September 2010. IEEE Computer Society 2010, isbn 978-0-7695-4187-7

Jef Wijsen: On the consistent rewriting of conjunctive queries under primary key constraints. Inf. Syst. 34(7): 578-601 (2009)

Jef Wijsen: Consistent query answering under primary keys: a characterization of tractable queries. ICDT 2009: 42-52

Véronique Bruyère, Alexandre Decan, Jef Wijsen: On First-Order Query Rewriting for Incomplete Database Histories. TIME 2009: 54-61

Jef Wijsen: Temporal Dependencies. Encyclopedia of Database Systems 2009: 2960-2966

Jef Wijsen: Temporal Integrity Constraints. Encyclopedia of Database Systems 2009: 2976-2982

Jef Wijsen: On the Consistent Rewriting of Conjunctive Queries Under Primary Key Constraints. DBPL 2007: 112-126

Jef Wijsen: Consistent Joins Under Primary Key Constraints. MUD 2007: 63-75

Jef Wijsen: Project-Join-Repair: An Approach to Consistent Query Answering Under Functional Dependencies. BDA 2006

Jef Wijsen: Project-Join-Repair: An Approach to Consistent Query Answering Under Functional Dependencies. FQAS 2006: 1-12

Torsten Grust, Hagen Höpfner, Arantza Illarramendi, Stefan Jablonski, Marco Mesiti, Sascha Müller, Paula-Lavinia Patranjan, Kai-Uwe Sattler, Myra Spiliopoulou, Jef Wijsen (Eds.): Current Trends in Database Technology - EDBT 2006, EDBT 2006 Workshops PhD, DataX, IIDB, IIHA, ICSNW, QLQP, PIM, PaRMA, and Reactivity on the Web, Munich, Germany, March 26-31, 2006, Revised Selected Papers. Lecture Notes in Computer Science 4254, Springer 2006, isbn 3-540-46788-2

Jef Wijsen: Database repairing using updates. ACM Trans. Database Syst. 30(3): 722-768 (2005)

Jef Wijsen: On Condensing Database Repairs Obtained by Tuple Deletions. DEXA Workshops 2005: 849-853

Jef Wijsen: Making More Out of an Inconsistent Database. ADBIS 2004: 291-305

Jef Wijsen, Alexis Bès: On query optimization in a temporal SPC algebra. Data Knowl. Eng. 44(2): 165-192 (2003)

Fosca Giannotti, Giuseppe Manco, Jef Wijsen: Logical Languages for Data Mining. Logics for Emerging Applications of Databases 2003: 325-361

Jef Wijsen: Condensed Representation of Database Repairs for Consistent Query Answering. ICDT 2003: 375-390

Toon Calders, Raymond T. Ng, Jef Wijsen: Searching for dependencies at multiple abstraction levels. ACM Trans. Database Syst. 27(3): 229-260 (2002)

Jef Wijsen: Trends in Databases: Reasoning and Mining. IEEE Trans. Knowl. Data Eng. 13(3): 426-438 (2001)

Toon Calders, Jef Wijsen: On Monotone Data Mining Languages. DBPL 2001: 119-132

Renaud Bassée, Jef Wijsen: Neighborhood Dependencies for Prediction. PAKDD 2001: 562-567

Jef Wijsen, Alexis Bès: Temporal Tableau Queries. TIME 2001: 136-143

Jef Wijsen: Temporal FDs on Complex Objects. ACM Trans. Database Syst. 24(1): 127-176 (1999)

Jef Wijsen, Raymond T. Ng, Toon Calders: Discovering Roll-Up Dependencies. KDD 1999: 213-222

Jef Wijsen, Raymond T. Ng: Temporal Dependencies Generalized for Spatial and Other Dimensions. Spatio-Temporal Database Management 1999: 189-203

Jef Wijsen, Robert Meersman: On the Complexity of Mining Quantitative Association Rules. Data Min. Knowl. Discov. 2(3): 263-281 (1998)

Jef Wijsen: Reasoning about Qualitative Trends in Databases. Inf. Syst. 23(7): 463-487 (1998)

Stijn Dekeyser, Bart Kuijpers, Jan Paredaens, Jef Wijsen: Nested Data Cubes for OLAP (Extended Abstract). ER Workshops 1998: 129-140

Jef Wijsen, Robert Meersman: On the Complexity of Mining Temporal Trends. DMKD 1997: 0-

Jef Wijsen: Design of Temporal Relational Databases Based on Dynamic and Temporal Functional Dependencies. Temporal Databases 1995: 61-76

Jef Wijsen, Jacques Vandenbulcke, Henke Olivie: Temporal Dependencies in Relational Database Design. BDA 1994

Jef Wijsen: A Theory of Keys for Temporal Databases. BDA 1993: 35-54

Jef Wijsen, Jacques Vandenbulcke, Henke Olivie: Functional Dependencies Generalized for Temporal Databases that Include Object-Identity. ER 1993: 99-109