Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/49019
Full metadata record
DC FieldValueLanguage
dc.contributor.authorBanerjee Snehasish
dc.date.accessioned2012-05-14T02:55:11Z
dc.date.available2012-05-14T02:55:11Z
dc.date.copyright2012en_US
dc.date.issued2012
dc.identifier.urihttp://hdl.handle.net/10356/49019
dc.description.abstractSearch engines have long been recognized as the gateways for online information seeking, but the gradual sophistication of the online information seekers has led to the emergence of Community-based Question-Answering (CQA) sites as an alternative source of information on the Web. There are many CQAs around but their overall effectiveness has not been widely studied. So, the dissertation addresses this problem and attempts to evaluate the overall effectiveness of CQAs based on a three-pronged evaluation framework; consisting of (1) answer quality, (2) answer responsiveness, and (3) corpus comprehensiveness. A total of 500 questions were posted in each of the six CQA sites (Yahoo! Answers, WikiAnswers, Answerbag, Baidu Knows, Tencent Soso Wenwen, Sina iAsk) and the resulting 3000 transactions were examined to conduct a three-way comparison: (1) within languages – English and Chinese; (2) between languages- English versus Chinese; and (3) across all the six individual CQA sites. Results indicate that among the three English CQAs, Yahoo! Answers and WikiAnswers provide the highest answer quality; Yahoo! Answers provides the highest answer responsiveness; and WikiAnswers, the highest corpus comprehensiveness. On the other hand, among the three Chinese CQAs, Tencent Soso Wenwen and Sina iAsk provide the highest answer quality; Tencent Soso Wenwen provides the highest answer responsiveness; and Baidu Knows, the highest corpus comprehensiveness. The cross-cultural and inter-language comparison between the English CQAs and the Chinese CQAs reveal that there is hardly any difference between the two in terms of answer quality. However, the English sites outdo the Chinese sites in terms of answer responsiveness; and vice-versa in terms of corpus comprehensiveness. The comparison across all the six individual CQAs reveals that WikiAnswers and Sina iAsk provide the highest answer quality; Yahoo! Answers provides the highest answer responsiveness; while Baidu Knows provides the highest corpus comprehensiveness. The results serve as a prescriptive guideline to the online information seekers, highlighting which CQA to turn to, based on their requirements. Also, it gives useful insights on the desiderata of an ideal CQA.en_US
dc.format.extent61 p.en_US
dc.language.isoenen_US
dc.rightsNanyang Technological University
dc.subjectDRNTU::Engineering::Computer science and engineering::Information systemsen_US
dc.titleEvaluation of CQAsen_US
dc.typeThesis
dc.contributor.supervisorAlton Chua Yeow Kuanen_US
dc.contributor.schoolWee Kim Wee School of Communication and Informationen_US
dc.description.degreeMaster of Science (Information Studies)en_US
item.grantfulltextrestricted-
item.fulltextWith Fulltext-
Appears in Collections:WKWSCI Theses
Files in This Item:
File Description SizeFormat 
TsciG1101945B.pdf
  Restricted Access
1.61 MBAdobe PDFView/Open

Page view(s) 50

313
Updated on Nov 30, 2020

Download(s) 20

18
Updated on Nov 30, 2020

Google ScholarTM

Check

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.