Information extraction from text; Material

Lecture notes (also available in the course folder on the 4th floor)

1. Lecture 31.1. [PostScript (6 slides/page)] [PowerPoint] [PDF]

   Lecture based on the article: Grishman: Information Extraction: Techniques and Challenges (for download: see the links on the upper right corner).

   Sample of documents on terrorist attacks (MUC-4).

2. Lecture 21.2. [PostScript (6 slides/page)] [PDF (6 slides/page)] [PowerPoint]

• Riloff: Automatically Constructing a Dictionary for Information Extraction Tasks (AutoSlog)

• Riloff: Automatically Generating Extraction Patterns from Untagged Text (AutoSlog-TS)

3. Lecture 17.3. [PostScript (6 slides/page)] [PDF (6 slides/page)] [PowerPoint]

   • Soderland: Learning Information Extraction Rules for Semi-structured and Free Text, Machine Learning, 1999

   • Kushmerick et al: Wrapper Induction for Information Extraction, IJCAI 97

   • Kushmerick: Wrapper induction: Efficiency and expressiveness, Workshop on AI and Information Integration, in AAAI'98.

   • Muslea et al: A Hierarchical Approach to Wrapper Induction, Proceedings of the Third International Conference on Autonomous Agents (Agents'99)

4. Lecture 18.3. [PostScript (6 slides/page)] [PDF (6 slides/page)] [PowerPoint]

   • Brin: Extracting patterns and relations from the World Wide Web WebDB Workshop at 6th International Conference on Extending Database Technology (EDBT'98)

   • Crescenzi et al: RoadRunner: Towards automatic data extraction from large web sites VLDB 2001

Resources

• NIST Message Understanding Conference page