2021W

• Seminar Database Systems / 181.201 / SE

2006

• A Formal Comparison of Visual Web Wrapper Generators / G. Gottlob, C. Koch / Talk: SOFSEM 2006, Merin, Tschech. Republik (invited); 2006-01-21 - 2006-01-27; in: "Theory and Practice of Computer Science", Springer, LNCS 3831 (2006), ISBN: 3-540-31198-x; 30 - 48
• Conjunctive Queries over Trees / G. Gottlob, C. Koch, K. Schulz / Journal of the ACM, Vol. 53 (2006), 2; 238 - 272

2005

• Information Extraction for the Semantic Web / R. Baumgartner, T. Eiter, G. Gottlob, M. Herzog, C. Koch / Talk: First International Summer School Reasoning Web 2005, Msida, Malta; 2005-07-25 - 2005-07-29; in: "Reasoning Web", Springer, LNCS 3564 (2005), ISBN: 3-540-27828-1; 275 - 289

2004

• FluXQuery: An Optimizing XQuery Processor for Streaming XML Data / C. Koch, S. Scherzinger, N. Schweikardt, B. Stegmaier / Talk: 30th International Conference on Very Large Data Bases (VLDB2004), Toronto, Canada; 2004-08-31 - 2004-09-03; in: "Proceedings of the Thirtieth International Conference on Very Large Data Bases", (2004), ISBN: 0-12-088469-0; 1309 - 1312
• Schema-Based Scheduling of Event Processors and Buffer Minimization for Queries on Structured Data Streams / C. Koch, S. Scherzinger, N. Schweikardt, B. Stegmaier / Talk: 30th International Conference on Very Large Data Bases (VLDB2004), Toronto, Canada; 2004-08-29 - 2004-09-03; in: "Proceedings of the Thirtieth International Conference on Very Large Data Bases", Morgan Kaufmann Publishers, (2004), ISBN: 0-12-088469-0; 228 - 239
• Conjunctive Queries over Trees / G. Gottlob, C. Koch, K. Schulz / Talk: PODS 2004, Paris, Frankreich (invited); 2004-06-14 - 2004-06-16; in: "Proceedings of the Twenty-third ACM SIGMOND-SIGACT-SIGART Symposium on Principles of Database Systems", Association for Computing Machinery, Inc. (ACM), New York (2004), ISBN: 1-58113-858-x; 189 - 200
• The_Lixto_Data_Extraction_Project_-_Back_and_Forth_between_Theory_and_Practice / G. Gottlob, C. Koch, R. Baumgartner, M. Herzog, S. Flesca / Talk: PODS 2004, Paris, Frankreich (invited); 2004-06-14 - 2004-06-16; in: "Proceedings of the Twenty-third ACM SIGMOND-SIGACT-SIGART Symposium on Principles of Database Systems", Association for Computing Machinery, Inc. (ACM), New York (2004), ISBN: 1-58113-858-x; 1 - 12
• Logic-based Web Information Extraction / G. Gottlob, C. Koch / ACM SIGMOD Record, Vol. 33 (2004), 2; 87 - 94
• Monadic Datalog and the Expressive Power of Languages Web Information Extraction / G. Gottlob, C. Koch / Journal of the ACM, 51 (2004), 1; 74 - 113
• Query Rewriting with Symmetric Constraints / C. Koch / AI Communications, 17 (2004), 2; 41 - 100

2003

• Web information Extracton with Lixto: Visual Logic and Expressive Power / G. Gottlob, R. Baumgartner, S. Flesca, M. Herzog, C. Koch / Talk: DISI Seminar, Genua, Italien (invited); 2003-11-24 - 2003-11-26
• Path Queries on Compressed XML / P. Buneman, M. Grohe, C. Koch / Talk: 29th Conference on Very Large Data Bases, Berlin, Deutschland; 2003-09-09 - 2003-09-12; in: "Proceedings of the 29 th VLDB Conference", M. Kaufman (ed.); Kaufmann, (2003), ISBN: 0-12-722442-4; 141 - 152
• Attribute Grammars for Scalable Query Processing on XML Streams / C. Koch, S. Scherzinger / Poster: The 9th International Workshop on Data Base Programming Languages, Potsdam, Deutschland (invited); 2003-09-06 - 2003-09-08; in: "Informal Proceedings of the 9th International Workshop on Data Base Programming Languages", (2003), 135 - 146
• Xpath Query Processing / G. Gottlob, C. Koch / Talk: The 9th International Workshop on Data Base Programming Languages, Potsdam, Deutschland (invited); 2003-09-06 - 2003-09-08
• Query Evaluation on Compressed Trees / M. Frick, M. Grohe, C. Koch / Talk: IEEE Symposium on Logic in Computer Science, Ottawa, Kanada; 2003-06-21 - 2003-06-25; in: "Proceeding on LICS 2003", IEEE, (2003), ISBN: 0-7695-1884-2; 188 - 197
• The Complexity of XPath Query Evaluation / G. Gottlob, C. Koch, R. Pichler / Talk: ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems, San Diego, USA (invited); 2003-06-09 - 2003-06-11; in: "Proceedings of the 22nd ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems", F. Neven (ed.); ACM Press, (2003), ISBN: 1-58113-670-6; 179 - 190
• XPath Query Evaluation: Improving Time and Space Efficiency / G. Gottlob, C. Koch, R. Pichler / Talk: 19th International Conference on Data Engineering, Bangalore, Indien; 2003-03-05 - 2003-03-08; in: "Proceedings on the ICDE 2003", (2003), 379 - 390
• Enhancing disjunctive logic programming systems by SAT checkers / C. Koch, N. Leone, G. Pfeifer / Artificial Intelligence, Volume 151 (2003), Issues 1-2; 177 - 212
• XPath Processing in a Nutshell / G. Gottlob, C. Koch, R. Pichler / ACM SIGMOD Record, Issue 1 (2003), Volume 32; 12 - 19
• Queries on tree-structured data / Habilitation Thesis by C. Koch / TU Wien, Fakultät für Informatik, 2003

2002

• The DLV System / N. Leone, G. Pfeifer, W. Faber, F. Calimeri, T. Dell´Armi, T. Eiter, G. Gottlob, G. Ianni, G. Ielpa, C. Koch, S. Perri, A. Polleres / Poster: 8th European Conference on Artificial Intelligence, JELIA 2002, Cosenza, Italy (invited); 2002-09-23 - 2002-09-26; in: "Logics in Artificial Intelligence", S. Flesca, S. Greco, N. Leone, G. Ianni (ed.); Lecture Notes in Artificial Intelligence, Springer, 2424 (2002), ISBN: 3-540-44190-5; 537 - 540
• Efficient Algorithms for Processing XPath Queries / G. Gottlob, C. Koch, R. Pichler / Talk: 28th international Conference on Very Large Data Bases 2002, Hong Kong SAR, China; 2002-08-20 - 2002-08-23; in: "Proceedings of the 28th international Conference on Very Large Data Bases 2002", P. Bernstein, Y. Ioannidis, R. Ramakrishnan, D. Papadias (ed.); Morgan Kaufmann Publishers, (2002), ISBN: 1-55860-869-9; 95 - 106
• Monadic Queries over Tree-Structured Data / G. Gottlob, C. Koch / Talk: 17th Annual IEEE Symposium on Logic in Computer Science (LIC'S02), Copenhagen, Denmark (invited); 2002-07-22 - 2002-07-25; in: "Proceedings of the 17th Annual IEEE Symposium on Logic in Computer Science (LIC'S02)", G. Plotkin (ed.); IEEE Computer Society, (2002), ISBN: 0-7695-1483-9; 189 - 202
• Monadic Datalog and the Expressive Power of Languages for Web Information Extraction. / G. Gottlob, C. Koch / Talk: Twenty-first ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems (PODS 2002), Madison, Wisconsin, USA (invited); 2002-06-03 - 2002-06-06; in: "Proceedings of the Twenty-first ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems", S. Abiteboul (ed.); (2002), ISBN: 1-58113-507-6; 17 - 28
• Query Rewriting with Symmetric Constraints / C. Koch / Talk: 2nd International Symposium on Foundations of information and knowledge systems, Salzau Castle, Germany; 2002-02-20 - 2002-02-23; in: "Foundations of information and knowledge systems", T. Eiter, K. Schewe (ed.); LNCS/Springer Verlag, Berlin (2002), ISBN: 3-540-43220-5; 130 - 147
• The DLV System for Knowledge Representation and Reasoning (INFSYS RR-1843-02-14) / N. Leone, G. Pfeifer, W. Faber, T. Eiter, G. Gottlob, C. Koch, C. Mateis, S. Perri, F. Scarcello / Report for Institut f. Informationssysteme, TU Wien; 2002

• Supervised Learning of Wrappers from Structured Data Sources / Doctoral Thesis by M. Ceresna / Supervisor, Reviewer: G. Gottlob, C. Koch; Institut für Informationssysteme, Datenbanken & Artificial Intelligence, 2005; oral examination: 2005-06-21
• Efficient Processing of XPath Queries / Master Thesis by T. Lukasser / Supervisor: C. Koch; Institut für Informationssysteme, Arbeitsbereich Datenbanken & Artificial Intelligence, 2004