12. ICDT 2009: Saint-Petersburg, Russia
Ronald Fagin (Ed.): Database Theory - ICDT 2009, 12th International Conference, St. Petersburg, Russia, March 23-25, 2009, Proceedings. ACM 2009 ACM International Conference Proceeding Series 361 ISBN 978-1-60558-423-2
Invited papers
Victor Vianu: Automatic verification of database-driven systems: a new frontier. 1-13
Andrea Calì, Georg Gottlob, Thomas Lukasiewicz: Datalog±: a unified approach to ontologies and integrity constraints. 14-30
Inconsistency and repairs
Foto N. Afrati, Phokion G. Kolaitis: Repair checking in inconsistent databases: algorithms and complexity. 31-41
Jef Wijsen: Consistent query answering under primary keys: a characterization of tractable queries. 42-52
Solmaz Kolahi, Laks V. S. Lakshmanan: On approximating optimum repairs for functional dependency violations. 53-62
Data exchange
Balder ten Cate, Phokion G. Kolaitis: Structural characterizations of schema-mapping languages. 63-72
Marcelo Arenas, Pablo Barceló, Juan L. Reutter: Query languages for data exchange: beyond unions of conjunctive queries. 73-83
Bogdan Cautis, Alin Deutsch, Nicola Onose: Querying data sources that export infinite sets of views. 84-97
Data structures and algorithms
Kenneth A. Ross, John Cieslewicz: Optimal splitters for database partitioning with size bounds. 98-110
Hao Yuan, Mikhail J. Atallah: Efficient data structures for range-aggregate queries on trees. 111-120
Uncertain databases
Christoph Koch: A compositional query algebra for second-order logic and uncertain databases. 127-140
Sungwoo Park, Seung-won Hwang: A logical account of uncertain databases based on linear logic. 141-148
Michaela Götz, Christoph Koch: A compositional framework for complex queries over uncertain data. 149-161
XML
Henrik Björklund, Wouter Gelade, Marcel Marquardt, Wim Martens: Incremental XPath evaluation. 162-173
Dario Colazzo, Giorgio Ghelli, Carlo Sartiani: Efficient asymmetric inclusion between regular expression types. 174-182
Querying
George H. L. Fletcher, Jan Van den Bussche, Dirk Van Gucht, Stijn Vansummeren: Towards a theory of search queries. 201-211
Business processes
Christian Fritz, Richard Hull, Jianwen Su: Automatic construction of simple artifact-based business processes. 225-238
Alin Deutsch, Richard Hull, Fabio Patrizi, Victor Vianu: Automatic verification of data-centric business processes. 252-267
Streams, data mining, complexity
Sudipto Guha: Tight results for clustering and summarizing data streams. 268-275
Venkatesan T. Chakaravarthy, Vinayaka Pandit, Yogish Sabharwal: Analysis of sampling techniques for association rule mining. 276-283
David P. Woodruff: The average-case complexity of counting distinct elements. 284-295
Provenance
Todd J. Green: Containment of conjunctive queries on annotated relations. 296-309
Olivier Biton, Susan B. Davidson, Sanjeev Khanna, Sudeepa Roy: Optimizing user views for workflows. 310-323



