A method for extracting causal knowledge from textual databases

This paper describes the first phase of a project to develop a knowledge extraction and knowledge discovery system that extracts causal knowledge from a textual database automatically, and attempts to infer new causal relationships from the extracted information. The initial work is focused on d...

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Main Authors: Chan, Syin, Niu, Yun, Ang, Alyssa, Khoo, Christopher S. G.
Other Authors: Wee Kim Wee School of Communication and Information
Format: Article
Language:English
Published: 2014
Subjects:
Online Access:https://hdl.handle.net/10356/101369
http://hdl.handle.net/10220/18370
http://www.connexor.com/nlplib/?q=node/540
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Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-101369
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spelling sg-ntu-dr.10356-1013692019-12-06T20:37:21Z A method for extracting causal knowledge from textual databases Chan, Syin Niu, Yun Ang, Alyssa Khoo, Christopher S. G. Wee Kim Wee School of Communication and Information DRNTU::Library and information science::Knowledge management This paper describes the first phase of a project to develop a knowledge extraction and knowledge discovery system that extracts causal knowledge from a textual database automatically, and attempts to infer new causal relationships from the extracted information. The initial work is focused on developing an automatic method for identifying and extracting cause-effect information expressed in medical abstracts. Linguistic clues that indicate the presence of a causal relation in text are being identified, and linguistic patterns constructed to represent the different ways in which cause and effect are expressed in English sentences. The linguistic patterns have “slots” that indicate the parts of the sentence representing the cause and the effect. The information extraction process involves matching the linguistic patterns with the syntactic structure of sentences, and extracting the parts of the sentence that match with the slots in the patterns. The extracted information is stored in a structured manner in a “cause-effect template” that indicates the different roles and attributes of the causal situation described in the text. Accepted version 2014-01-03T01:33:34Z 2019-12-06T20:37:21Z 2014-01-03T01:33:34Z 2019-12-06T20:37:21Z 1999 1999 Journal Article Khoo, C. S. G., Chan, S., Niu, Y., & Ang, A. (1999). A method for extracting causal knowledge from textual databases. Singapore journal of library & information management, 28, 48-63. 0085-6118 https://hdl.handle.net/10356/101369 http://hdl.handle.net/10220/18370 http://www.connexor.com/nlplib/?q=node/540 en Singapore journal of library & information management © 1999 The Authors. This is the author created version of a work that has been peer reviewed and accepted for publication in Singapore Journal of Library & Information Management, published by Library Association of Singapore on behalf of the authors. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document.  The published version is available at: [http://www.las.org.sg/wp/resources/publications/sjlim1/]. application/pdf
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Library and information science::Knowledge management
spellingShingle DRNTU::Library and information science::Knowledge management
Chan, Syin
Niu, Yun
Ang, Alyssa
Khoo, Christopher S. G.
A method for extracting causal knowledge from textual databases
description This paper describes the first phase of a project to develop a knowledge extraction and knowledge discovery system that extracts causal knowledge from a textual database automatically, and attempts to infer new causal relationships from the extracted information. The initial work is focused on developing an automatic method for identifying and extracting cause-effect information expressed in medical abstracts. Linguistic clues that indicate the presence of a causal relation in text are being identified, and linguistic patterns constructed to represent the different ways in which cause and effect are expressed in English sentences. The linguistic patterns have “slots” that indicate the parts of the sentence representing the cause and the effect. The information extraction process involves matching the linguistic patterns with the syntactic structure of sentences, and extracting the parts of the sentence that match with the slots in the patterns. The extracted information is stored in a structured manner in a “cause-effect template” that indicates the different roles and attributes of the causal situation described in the text.
author2 Wee Kim Wee School of Communication and Information
author_facet Wee Kim Wee School of Communication and Information
Chan, Syin
Niu, Yun
Ang, Alyssa
Khoo, Christopher S. G.
format Article
author Chan, Syin
Niu, Yun
Ang, Alyssa
Khoo, Christopher S. G.
author_sort Chan, Syin
title A method for extracting causal knowledge from textual databases
title_short A method for extracting causal knowledge from textual databases
title_full A method for extracting causal knowledge from textual databases
title_fullStr A method for extracting causal knowledge from textual databases
title_full_unstemmed A method for extracting causal knowledge from textual databases
title_sort method for extracting causal knowledge from textual databases
publishDate 2014
url https://hdl.handle.net/10356/101369
http://hdl.handle.net/10220/18370
http://www.connexor.com/nlplib/?q=node/540
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