Efficient support vector classifiers for named entity recognition. Isozaki, H. & Kazawa, H. Proceedings of the 19th international conference on Computational linguistics, 1:1-7, Association for Computational Linguistics, 2002. Website abstract bibtex Named Entity (NE) recognition is a task in which proper nouns and numerical information are extracted from documents and are classified into categories such as person, organization, and date. It is a key technology of Information Extraction and Open-Domain Question Answering. First, we show that an NE recognizer based on Support Vector Machines (SVMs) gives better scores than conventional systems. However, off-the-shelf SVM classifiers are too inefficient for this task. Therefore, we present a method that makes the system substantially faster. This approach can also be applied to other similar tasks such as chunking and part-of-speech tagging. We also present an SVM-based feature selection method and an efficient training method.
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title = {Efficient support vector classifiers for named entity recognition},
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abstract = {Named Entity (NE) recognition is a task in which proper nouns and numerical information are extracted from documents and are classified into categories such as person, organization, and date. It is a key technology of Information Extraction and Open-Domain Question Answering. First, we show that an NE recognizer based on Support Vector Machines (SVMs) gives better scores than conventional systems. However, off-the-shelf SVM classifiers are too inefficient for this task. Therefore, we present a method that makes the system substantially faster. This approach can also be applied to other similar tasks such as chunking and part-of-speech tagging. We also present an SVM-based feature selection method and an efficient training method.},
bibtype = {article},
author = {Isozaki, Hideki and Kazawa, Hideto},
journal = {Proceedings of the 19th international conference on Computational linguistics}
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