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Intelligent Database Systems Lab
N.Y.U.S.T.
I. M.
OpinionMiner: A Novel Machine Learning System for Web Opinion Mining and Extraction
Presenter : Jiang-Shan Wang
Authors : Wei Jin, Hung Hay Ho, Rohini K. Srihari
KDD 2009
國立雲林科技大學National Yunlin University of Science and Technology
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Intelligent Database Systems Lab
N.Y.U.S.T.
I. M.Outline
Motivation
Objective
Methodology
Experiments
Conclusion
Comments
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Intelligent Database Systems Lab
N.Y.U.S.T.
I. M.Motivation
Customers’ opinions and hands-on experiences on products are highly valuable to manufacturers, online advertisers and potential customers.
Unfortunately, reading through all customer reviews is difficult, especially for popular items.
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Intelligent Database Systems Lab
N.Y.U.S.T.
I. M.Objective
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This paper aims to design a system that is capable of extracting, learning and classifying product entities and opinion expressions automatically from product reviews.
Intelligent Database Systems Lab
N.Y.U.S.T.
I. M.Methods – Tag (Con.)
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Example:“I love the ease of transferring the pictures to my computer.
<BG>I</BG><OPINION_POS_EXP>love</OPINION_POS_EXP><BG>the</BG><PROD_FEATBOE>ease</PROD_FEAT-BOE><PROD_FEATMOE>of</PROD_FEAT-MOE><PROD_FEATMOE>transferring</PROD_FEAT-MOE><PROD_FEATMOE>the</PROD_FEATMOE><PROD_FEATEOE>pictures</PROD_FEATEOE><BG>to</BG><BG>my</BG><BG>computer</BG>
<BG>I</BG><OPINION_POS_EXP>love</OPINION_POS_EXP><BG>the</BG><PROD_FEAT>ease of transferring the pictures</PROD_FEAT><BG>to</BG><BG>my</BG><BG>computer</BG>
Intelligent Database Systems Lab
N.Y.U.S.T.
I. M.Conclusion
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The model naturally integrates multiple linguistic features into automatic learning.
The system can predict new potential product and opinion entities.
Complex expressions or infrequently entities can be effectively and efficiently identified.
The bootstrapping approach can handle a large training set.