Open Source IR Tools

Indexing

• Lemur/Indri http://www.lemurproject.org/
• Lucene http://lucene.apache.org
• MG4J http://mg4j.dsi.unimi.it/
• Sphinx http://sphinxsearch.com/
• Terrier http://www.ir.dcs.gla.ac.uk/terrier/
• Wumpus http://www.wumpus-search.org/

Text annotation and Information Extraction

• Gate http://gate.ac.uk/
• UIMA http://uima.apache.org/

Document Categorization

Via data mining tools such as:

• Rapid Miner  http://rapid-i.com/content/view/181/190/
• Weka  http://www.cs.waikato.ac.nz/ml/weka/

Image retrieval

• GIFT http://www.gnu.org/software/gift/
• FIRE http://www-i6.informatik.rwth-aachen.de/~deselaers/fire/

Machine translation

• Moses http://www.statmt.org/moses/

LP - full scale parser

• Stanford parser http://nlp.stanford.edu/software/lex-parser.shtml#Download
• Minipar http://ai.stanford.edu/~rion/parsing/minipar_viz.html - download here: http://webdocs.cs.ualberta.ca/~lindek/minipar/
• Combinatory Categorial Grammar and Boxer (generates semantic representations) http://svn.ask.it.usyd.edu.au/trac/candc/wiki/boxer
• Part-of-speech tagger: TreeTagger - a language independent part-of-speech tagger http://www.ims.uni-stuttgart.de/projekte/corplex/TreeTagger/DecisionTreeTagger.html

Linguistic search corpus engines and linguistic annotation tools

• Manatee – a linguistic search corpus engine http://www.textforge.cz/
• TIGER - Corpus Query Tool with the goal of extending the NeGra corpus and its annotation. http://www.ims.uni-stuttgart.de/projekte/TIGER/
  The annotation tool is http://www.coli.uni-saarland.de/projects/sfb378/negra-corpus/annotate.html
• Callisto (PATExpert used the Callisto by the MITRE Corporation to annotate part-whole and motions in patents) http://callisto.mitre.org/index.html
• Annotation platforms for semantic role labeling used for Propbank http://code.google.com/p/propbank/
• Multilingual Propbank Annotation Tool Cornerstone and Jubilee http://www.aclweb.org/anthology/N/N10/N10-2004.pdf
• Introduction to Semantic roles http://www.ilc.cnr.it/EAGLES96/rep2/node8.html
• A toolkit for a Generative Lexicon http://hal.archives-ouvertes.fr/docs/00/27/99/36/PDF/06_Henry_Paper.pdf

Ontology platforms

• Protégé http://protege.stanford.edu/
• WebODE http://webode.dia.fi.upm.es/WebODEWeb/index.html (but you will be asked to use the NeOn toolkit if you do not already have password to WebODE http://neon-toolkit.org/wiki/Main_Page)