Semantic network for knowledge representation

A semantic network is the representation of knowledge in the form of a graph where the nodes represent entities or events and the edges connecting them describes their semantic relationship. This project aims to develop a program which can present this relationship in terms of the strength of the li...

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Bibliographic Details
Main Author: Kok, Hong Jie
Other Authors: Mahsud Saif Ullah Khan
Format: Final Year Project (FYP)
Language:English
Published: 2014
Subjects:
Online Access:http://hdl.handle.net/10356/61867
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author Kok, Hong Jie
author2 Mahsud Saif Ullah Khan
author_facet Mahsud Saif Ullah Khan
Kok, Hong Jie
author_sort Kok, Hong Jie
collection NTU
description A semantic network is the representation of knowledge in the form of a graph where the nodes represent entities or events and the edges connecting them describes their semantic relationship. This project aims to develop a program which can present this relationship in terms of the strength of the link, as well as analyze the emotions expressed between them. Representing knowledge in this manner presents the possibility to predict possible behaviors or attitudes exhibited by one entity towards another in a social network. The implementation involves examining a text to extract named entities and the sentiments experienced between them, as well as measure the strength of the relationship between these entities by adapting link discovery algorithms used for web-based resources. Results were obtained from evaluating sentences containing an emotive verb, and the system was shown to be ineffective in interpreting the sentences. Comparisons were also made between three connection measurement methods, and the lexical co-occurrence method was proven to be better at establishing relevant connections compared to path-based measures. The two path-based measures were tested on their ability to rank entity pair relationships, but the results were inconclusive due to implementation difficulties. Several recommendations for improving the information extraction capabilities of the program were suggested at the end of the report.
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spelling ntu-10356/618672023-07-07T16:27:02Z Semantic network for knowledge representation Kok, Hong Jie Mahsud Saif Ullah Khan School of Electrical and Electronic Engineering Mao Kezhi DRNTU::Engineering::Electrical and electronic engineering A semantic network is the representation of knowledge in the form of a graph where the nodes represent entities or events and the edges connecting them describes their semantic relationship. This project aims to develop a program which can present this relationship in terms of the strength of the link, as well as analyze the emotions expressed between them. Representing knowledge in this manner presents the possibility to predict possible behaviors or attitudes exhibited by one entity towards another in a social network. The implementation involves examining a text to extract named entities and the sentiments experienced between them, as well as measure the strength of the relationship between these entities by adapting link discovery algorithms used for web-based resources. Results were obtained from evaluating sentences containing an emotive verb, and the system was shown to be ineffective in interpreting the sentences. Comparisons were also made between three connection measurement methods, and the lexical co-occurrence method was proven to be better at establishing relevant connections compared to path-based measures. The two path-based measures were tested on their ability to rank entity pair relationships, but the results were inconclusive due to implementation difficulties. Several recommendations for improving the information extraction capabilities of the program were suggested at the end of the report. Bachelor of Engineering 2014-12-03T06:10:09Z 2014-12-03T06:10:09Z 2014 2014 Final Year Project (FYP) http://hdl.handle.net/10356/61867 en Nanyang Technological University 54 p. application/pdf
spellingShingle DRNTU::Engineering::Electrical and electronic engineering
Kok, Hong Jie
Semantic network for knowledge representation
title Semantic network for knowledge representation
title_full Semantic network for knowledge representation
title_fullStr Semantic network for knowledge representation
title_full_unstemmed Semantic network for knowledge representation
title_short Semantic network for knowledge representation
title_sort semantic network for knowledge representation
topic DRNTU::Engineering::Electrical and electronic engineering
url http://hdl.handle.net/10356/61867
work_keys_str_mv AT kokhongjie semanticnetworkforknowledgerepresentation