AUTOMATIC BUILDING A CORPUS AND EXPLOITING IT FOR POLARITY CLASSIFICATION OF INDIRECT OPINIONS ABOUT DRUGS

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NOFERESTI SAMIRA; SHAMSFARD MEHRNOUSH

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Journal: SIGNAL AND DATA PROCESSING Year:2016 | Volume:- | Issue:2 (SERIAL 28) Page(s): 35-49

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Information Journal Paper

Title

AUTOMATIC BUILDING A CORPUS AND EXPLOITING IT FOR POLARITY CLASSIFICATION OF INDIRECT OPINIONS ABOUT DRUGS

Author(s)

NOFERESTI SAMIRA | SHAMSFARD MEHRNOUSH | Issue Writer Certificate

Keywords

OPINION MININGQ1

INDIRECT OPINIONSQ2

SENTIMENT ANALYSISQ2

CORPUS CONSTRUCTIONQ2

MACHINE LEARNINGQ2

Abstract

OPINION MINING is a well-known problem in natural language processing that has attracted increasing attention in recent years. Existing approaches have been often focused on identifying direct opinions and ignored indirect ones. However, in some domains such as medical, INDIRECT OPINIONS occur frequently. Therefore, ignoring INDIRECT OPINIONS can lead to the loss of valuable information and noticeable decline in overall accuracy of OPINION MINING systems. In this paper, we present a semi-automatic approach to construct a corpus of INDIRECT OPINIONS from drug reviews. In the first step, we propose an automatic method for detection of INDIRECT OPINIONS and in the second step, we use domain knowledge, linguistic rules and review structure for polarity detection of drug reviews. Then we exploit the constructed corpus as a training set in MACHINE LEARNING techniques for polarity classification of new examples. Experimental results demonstrate that our proposed approach achieves 82.81 percent precision.

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APA: Copy

NOFERESTI, SAMIRA, & SHAMSFARD, MEHRNOUSH. (2016). AUTOMATIC BUILDING A CORPUS AND EXPLOITING IT FOR POLARITY CLASSIFICATION OF INDIRECT OPINIONS ABOUT DRUGS. SIGNAL AND DATA PROCESSING, -(2 (SERIAL 28)), 35-49. SID. https://sid.ir/paper/160718/en

Vancouver: Copy

NOFERESTI SAMIRA, SHAMSFARD MEHRNOUSH. AUTOMATIC BUILDING A CORPUS AND EXPLOITING IT FOR POLARITY CLASSIFICATION OF INDIRECT OPINIONS ABOUT DRUGS. SIGNAL AND DATA PROCESSING[Internet]. 2016;-(2 (SERIAL 28)):35-49. Available from: https://sid.ir/paper/160718/en

IEEE: Copy

SAMIRA NOFERESTI, and MEHRNOUSH SHAMSFARD, “AUTOMATIC BUILDING A CORPUS AND EXPLOITING IT FOR POLARITY CLASSIFICATION OF INDIRECT OPINIONS ABOUT DRUGS,” SIGNAL AND DATA PROCESSING, vol. -, no. 2 (SERIAL 28), pp. 35–49, 2016, [Online]. Available: https://sid.ir/paper/160718/en

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