TU Wien Informatics

Christoph Koch

Univ.Doz. Dipl.-Ing. Dr.techn.

Research Areas

  • databases, database theory, complexity theory, logic in computer science, artificial intelligence

Role

2020W

2021S

 

2006

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

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