Books

Information Retrieval
P. Ingwersen. Information Retrieval Interaction. London: Taylor Graham, 1992.
C. J. van Rijsbergen. Information Retrieval. London: Butterworths, 1979

Software and Tools

NLP
GeniaTagger English part of speech tagger
MXPOST English part of speech tagger
Stanford Parser English Syntactic Parser
Enju English Syntactic Parser
Porter Stemmer Algorithm by Martin Porter
Porter Stemmer Algorithm by Jamie Callan
MXTERMINATOR English sentence boundary detector
Lingpipe Java libraries for the linguistic analysis
GATE A general architecture for text engieering


Named Entity Identification
ABNER A Biomedical Named Entity Recognizer