نتایج جستجو برای: chemical named entity recognition

تعداد نتایج: 812981  

2006
Zornitsa Kozareva

Current Named Entity Recognition systems suffer from the lack of hand-tagged data as well as degradation when moving to other domain. This paper explores two aspects: the automatic generation of gazetteer lists from unlabeled data; and the building of a Named Entity Recognition system with labeled and unlabeled data.

Journal: :Int. J. of Asian Lang. Proc. 2012
Chunyuan Fu Yanqing Zhao Guohong Fu

Named entity recognition plays an important role in many natural language processing applications. While considerable attention has been pain in the past to research issues related to named entity recognition, few studies have been reported on the recognition of nested named entities. This paper presents a morpheme-based due-layer labeling method to Chinese nested named entity recognition. To a...

2011
Olivier Galibert Sophie Rosset Cyril Grouin Pierre Zweigenbaum Ludovic Quintard

The evaluation of named entity recognition (NER) methods is an active field of research. This includes the recognition of named entities in speech transcripts. Evaluating NER systems on automatic speech recognition (ASR) output whereas human reference annotation was prepared on clean manual transcripts raises difficult alignment issues. These issues are emphasized when named entities are struct...

Journal: :International Journal on Natural Language Computing 2013

Journal: :International Journal of Computer Processing of Languages 2008

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