Named Entity Recognition Article Index for
Named
Website Links For
Named
 

Information About

Named Entity Recognition




For example, a NER system producing MUC-style output might Tag the sentence,

Jim bought 300 shares of Acme Corp. in 2006.

:''Jim'''''' bought ''''''300'''''' shares of ''''''Acme Corp.'''''' in ''''''2006''''''''.

NER systems have been created that use linguistic Grammar -based techniques as well as Statistical Model s. Hand-crafted grammar-based systems typically obtain better results, but at the cost of months of work by experienced Linguist s. Statistical NER systems require much training data, but can be Ported to other languages much more rapidly and require less work overall.

Benchmarking and evaluations have been performed in the ''Message Understanding Conferences (MUC)'' organized by DARPA , ''International Conference on Language Resources and Evaluation (LREC)'', ''Computational Natural Language Learning (CoNLL)'' workshops, the ''Multilingual Entity Task Conference'' and in ''HAREM'' (portuguese language only).


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