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Domain Specific Named Entity Recognition Using Supervised Approach
Ashwini A. Shende, Avinash J. Agrawal, Dr. O. G. Kakde
Pages - 67 - 78     |    Revised - 15-09-2012     |    Published - 24-10-2012
Volume - 3   Issue - 1    |    Publication Date - October 2012  Table of Contents
Named Entity , Supervised machine learning, n-gram, Context extraction, NE recognition
This paper introduces Named Entity Recognition approach for textual corpus. Supervised Statistical methods are used to develop our system. Our system can be used to categorize NEs belonging to a particular domain for which it is being trained. As Named Entities appears in text surrounded by contexts (words that are left or right of the NE), we will be focusing on extracting NE contexts from text and then perform statistical computing on them. We are using n-gram modeling for extracting contexts from text. Our methodology first extracts left and right tri-grams surrounding NE instances in the training corpus and calculate their probabilities. Then all the extracted tri-grams along with their calculated probabilities are stored in a file. During testing, system detects unrecognized NEs in the testing corpus and categorize them using the tri-gram probabilities calculated during training time. The proposed system consists of two modules namely Knowledge acquisition and NE Recognition. Knowledge acquisition module extracts the tri-grams surrounding NEs in the training corpus and NE Recognition module performs the categorization of Named Entities in the testing corpus.
CITED BY (2)  
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Miss Ashwini A. Shende
RTMNU - India
Mr. Avinash J. Agrawal
Rashtrasant Tukdoji Maharaj, Nagpur University - India
Mr. Dr. O. G. Kakde
Visvesvaraya National Institute of Technology Nagpur - India