relation: https://khub.utp.edu.my/scholars/5414/ title: A review of unsupervised approaches of opinion target extraction from unstructured reviews creator: Khan, K. creator: Baharudin, B. creator: Khan, A. description: Opinion targets identification is an important task of the opinion mining problem. Several approaches have been employed for this task, which can be broadly divided into two major categories: supervised and unsupervised. The supervised approaches require training data, which need manual work and are mostly domain dependent. The unsupervised technique is most popularly used due to its two main advantages: domain independent and no need for training data. This study presents a review of the state of the art unsupervised approaches for opinion target identification due to its potential applications in opinion mining from web documents. This study compares the existing approaches that might be helpful in the future research work of opinion mining and features extraction. © Maxwell Scientific Organization, 2014. publisher: Maxwell Science Publications date: 2014 type: Article type: PeerReviewed identifier: Khan, K. and Baharudin, B. and Khan, A. (2014) A review of unsupervised approaches of opinion target extraction from unstructured reviews. Research Journal of Applied Sciences, Engineering and Technology, 7 (12). pp. 2400-2410. ISSN 20407459 relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84899065149&doi=10.19026%2frjaset.7.543&partnerID=40&md5=aa1b1290b2fda68bdb13b89f189c243d relation: 10.19026/rjaset.7.543 identifier: 10.19026/rjaset.7.543