Rule-based Pattern Extractor and Named Entity Recognition: A Hybrid Approach

Name Entity Recognition (NER) is one of the important tasks in Information Extraction (IE) research that has been flourishing for more than fifteen years ago. NER enables an IE system to recognize and classify information units in an unstructured text. This paper presents a Rule-based pattern extrac...

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Main Authors: Sari, Y., Hassan, M.F., Zamin, N.
Format: Conference or Workshop Item
Language:English
Published: 2010
Subjects:
Online Access:http://scholars.utp.edu.my/id/eprint/3145/
http://scholars.utp.edu.my/id/eprint/3145/1/stamp.jsp%3Ftp%3D%26arnumber%3D5561392%26tag%3D1
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author Sari, Y.
Hassan, M.F.
Zamin, N.
author_facet Sari, Y.
Hassan, M.F.
Zamin, N.
author_sort Sari, Y.
building UTP Institutional Repository
collection Online Access
description Name Entity Recognition (NER) is one of the important tasks in Information Extraction (IE) research that has been flourishing for more than fifteen years ago. NER enables an IE system to recognize and classify information units in an unstructured text. This paper presents a Rule-based pattern extractor and a Semi-Supervised NER approach to automatically generate extraction pattern from a limited corpus and label the pre-defined entities in a collection of accident documents. Link Grammar parser and Stanford Part-of-Speech tagger are used in the pattern extractor to identify named entity and construct extraction pattern. The extraction pattern then feed to Semi-Supervised NER to categorize the entities into some predefined categories. Performance is evaluated using Exact Match evaluation and tested on two different entities-DATE and LOCATION. Using only two features, the system shows promising result.
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institution Universiti Teknologi Petronas
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language English
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spelling oai:scholars.utp.edu.my:31452017-01-19T08:24:15Z http://scholars.utp.edu.my/id/eprint/3145/ Rule-based Pattern Extractor and Named Entity Recognition: A Hybrid Approach Sari, Y. Hassan, M.F. Zamin, N. QA75 Electronic computers. Computer science QA76 Computer software Name Entity Recognition (NER) is one of the important tasks in Information Extraction (IE) research that has been flourishing for more than fifteen years ago. NER enables an IE system to recognize and classify information units in an unstructured text. This paper presents a Rule-based pattern extractor and a Semi-Supervised NER approach to automatically generate extraction pattern from a limited corpus and label the pre-defined entities in a collection of accident documents. Link Grammar parser and Stanford Part-of-Speech tagger are used in the pattern extractor to identify named entity and construct extraction pattern. The extraction pattern then feed to Semi-Supervised NER to categorize the entities into some predefined categories. Performance is evaluated using Exact Match evaluation and tested on two different entities-DATE and LOCATION. Using only two features, the system shows promising result. 2010-06 Conference or Workshop Item PeerReviewed application/pdf en http://scholars.utp.edu.my/id/eprint/3145/1/stamp.jsp%3Ftp%3D%26arnumber%3D5561392%26tag%3D1 Sari, Y. and Hassan, M.F. and Zamin, N. (2010) Rule-based Pattern Extractor and Named Entity Recognition: A Hybrid Approach. In: International Symposium on Information Technology 2010, ITSim, June 2010, Kuala Lumpur. http://ieeexplore.ieee.org/search/srchabstract.jsp?tp=&arnumber=5561392&queryText%3DRule-based+pattern+extractor%26openedRefinements%3D*%26searchField%3DSearch+All
spellingShingle QA75 Electronic computers. Computer science
QA76 Computer software
Sari, Y.
Hassan, M.F.
Zamin, N.
Rule-based Pattern Extractor and Named Entity Recognition: A Hybrid Approach
title Rule-based Pattern Extractor and Named Entity Recognition: A Hybrid Approach
title_full Rule-based Pattern Extractor and Named Entity Recognition: A Hybrid Approach
title_fullStr Rule-based Pattern Extractor and Named Entity Recognition: A Hybrid Approach
title_full_unstemmed Rule-based Pattern Extractor and Named Entity Recognition: A Hybrid Approach
title_short Rule-based Pattern Extractor and Named Entity Recognition: A Hybrid Approach
title_sort rule-based pattern extractor and named entity recognition: a hybrid approach
topic QA75 Electronic computers. Computer science
QA76 Computer software
url http://scholars.utp.edu.my/id/eprint/3145/
http://scholars.utp.edu.my/id/eprint/3145/
http://scholars.utp.edu.my/id/eprint/3145/1/stamp.jsp%3Ftp%3D%26arnumber%3D5561392%26tag%3D1