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Textpresso - an Information Retrieval and Extraction System for Biological Literature Mueller, Hans-Michael Rangarajan, Arun Teal, Tracy K. van Auken, Kimberly Chan, Juancarlos Sternberg, Paul W. Information retrieval literature search engine information extraction automated literature curation semantic search ontology, We developed an information retrieval and extraction system that processes the full text of biological papers. The system, called Textpresso, separates text into sentences, labels words and phrases according to an ontology (an organized lexicon), and allows queries to be performed on a database of labeled sentences. The current ontology comprises approximately one hundred categories of terms, such as "gene", "regulation", "human disease", "brain area" etc., and also contains main Gene Ontology (GO) categories. Extraction of particular biological facts, such as gene-Ã‚Âgene interactions, or the curation of GO cellular components, can be accelerated significantly by ontologies, with Textpresso automatically performing nearly as well as expert curators to identify sentences. Search engine for four literatures, C. elegans, Drosophila, Arabidopsis and Neuroscience have been established by us, and thirteen systems for other literatures have been developed by other groups around the world. Currently, our four systems contain 112,000 papers with 40 million sentences, all systems worldwide contain 190,000 papers with approximately 65 million sentences. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Hans-Michael Mueller and Arun Rangarajan and Tracy K. Teal and Kimberly van Auken and Juancarlos Chan and Paul W. Sternberg 2008 Is Part Of Dagstuhl Seminar Proceedings, Volume 8131, Ontologies and Text Mining for Life Sciences : Current Status and Future Perspectives (2008) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/DagSemProc.08131.19 urn:nbn:de:0030-drops-15169 https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.08131.19 eng https://creativecommons.org/licenses/by/4.0/legalcode