1. LaSIE: The Large Scale Information Extraction System Robert Gaizauskas Natural Language Processing Group Department of Computer Science University of Sheffield

2. January, 2001 AKT Workshop Outline History: The Evolution of an IE System Applications: Projects using LaSIE Demo

3. January, 2001 AKT Workshop History: The Evolution of an IE System January 1, 1995: LaSIE official “birth date” EPSRC 3 year/3 person grant called Large Scale Information Extraction “to develop GATE, an architecture for combining modules to produce a system to extract information from large-scale running text to data templates in a specified domain to build and evaluate a particular set of modules and submit it to standard evaluation” GATE  LaSIE Prehistory: TIC/POETIC systems at Sussex 1987-1993 CRL MUC-5 System at NMSU 1993(?)

4. January, 2001 AKT Workshop History: Chronology of LaSIE September 1995: LaSIE v1.0 participates in MUC-6 Four tasks: Named Entity, Coreference, Template Element, Scenario Template (management succession) Scores - P & R : NE: 89 (96) CO: 71/51 (72/59) TE: 70 (80) ST: 49 (56) November 1996: GATE v1.0 Contains VIE (Vanilla Information Extraction) system VIE = LaSIE v1.5 LaSIE v1.5 has essentially same functionality at LaSIE v1.0, but is embedded in GATE

5. January, 2001 AKT Workshop History: Chronology of LaSIE (cont) April 1997: LaSIE v2.0 participates in MUC-7 Five tasks: NE, CO, TE, ST and Template Relations (TR) new for MUC-7 Scores – P & R: NE: 86 (93) CO: 62 (62) TE: 77 (87) TR: 55 (76) ST: 51 (44) Only site to participate in all 5 tasks (“inside GATE”) 1997-2000 LaSIE serves as basis for a number of IE applications (below) October 2000: LaSIE v2.1 (rolled up changes, since v2.0)

6. January, 2001 AKT Workshop History: LaSIE People Initial RAs: Hamish Cunningham, Kevin Humphreys, Takahiro Wakao Others: Saliha Azzam Mark Hepple Chris Huyck Brian Mitchell Sandy Robertson Pete Rodgers Yorick Wilks

7. January, 2001 AKT Workshop LaSIE: IE Applications PASTA Protein Active Site Template Acquisition BBSRC EMPathIE Enzyme and Metabolic Pathways IE GlaxoWellcome/Elsevier Competitor/Market Intelligence New project launches/person tracking British Gas; Mars Foods STOBS Structured Transcription of Broadcast Speech EPSRC EXALT Extracting Amendments from Legal Text Venns Extracting info from Biographical Dictionaries

8. January, 2001 AKT Workshop LaSIE: Applications (continued) TRESTLE Text Retrieval Extraction and Summarisation Technologies for Large Enterprises GlaxoWellcome Question Answering TREC-8 and TREC-9 QA Track CLARITY Cross-language information retrieval EC FW-5