Information Extraction

1 Information Extraction and Information Technology.- 1.1??Defining Information Extraction.-1.2??Explaining Information Extraction.- 1.3??Information Extraction and Information Retrieval.-??1.4??Information Extraction and Other Information Processing Tasks.- 1.5??The Aims of the Book.- 1.6??Conclusions. -1.7 Bibliography.- 2 Information Extraction from an Historical Perspective.- 2.1??Introduction.- 2.2??A Historical Overview.-??2.3 The Common Extraction Process.-??2.4 A Cascade of Tasks.- 2.5 Conclusions.- 2.6 Bibliography.-??3 The Symbolic Techniques.- 3.1??Introduction.- 3.2?????? Conceptual Dependency Theory and Scripts.-3.3??Frame Theory.-3.4??Actual Implementations of Symbolic Techniques.-??3.5??Conclusions.- 3.6??Bibliography.- 4 Pattern Recognition.- 4.1 Introduction.- 4.2 What is Pattern Recognition?.-?? 4.3 The Classification Scheme.- 4.4 The Information Units to Extract.- 4.5 The Features.- 4.6 Conclusions.- 4.7 Bibliography.- 5 Supervised Classification.- 5.1 Introduction.- 5.2 Support Vector Machines.- 5.3 Maximum Entropy Models.- 5.4 Hidden Markov Models.- 5.5 Conditional Random Fields.- 5.6????Decision Rules and Trees.- 5.7??Relational Learning.- 5.8??Conclusions.- 5.9??Bibliography.- 6 Unsupervised Classification Aids.- 6.1 Introduction.- 6.2??Clustering.-??6.3??Expansion.- 6.4??Self-training.- 6.5??Co-training.- 6.6??Active Learning.- 6.7??Conclusions.-6.8??Bibliography.-??7 Integration of Information Extraction in Retrieval Models.- 7.1 Introduction.- 7.2 State of the Art of Information Retrieval.- 7.3 Requirements of Retrieval Systems.- 7.4 Motivation of Incorporating Information Extraction.- 7.5 Retrieval Models.-??7.6??Data Structures.- 7.7??Conclusions.- 7.8??Bibliography.- 8 Evaluation of Information Extraction Technologies.- 8.1?? Introduction.- 8.2??Intrinsic Evaluation of Information Extraction.-??8.3 Extrinsic Evaluation of Information Extraction in Retrieval.- 8.4 Other Evaluation Criteria.- 8.5 Conclusions.- 8.6??Bibliography.- 9 Case Studies.- 9.1??Introduction.- 9.2 Generic versus Domain Specific Character.- 9.3 Information Extraction from News Texts.- 9.4??Information Extraction from Biomedical Texts.- 9.5 Intelligence Gathering.- 9.6??Information Extraction from Business Texts.- 9.7??Information Extraction from Legal Texts.- 9.8??Information Extraction from Informal Texts.- 9.9 Conclusions.- 9.10??Bibliography.- 10 The Future of Information Extraction in a Retrieval Context.- 10.1 Introduction.- 10.2 The Human Needs and the Machine Performances.- 10.3 Most Important Findings.-??10.4??Algorithmic Challenges.-??10.5 The Future of IE in a Retrieval Context.- 10.6 Bibliography.-