Distortion as a validation criterion in the identification of suspicious reviews

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dc.contributor.author Wu, Guangyu
dc.contributor.author Greene, Derek
dc.contributor.author Smyth, Barry
dc.contributor.author Cunningham, Pádraig
dc.date.accessioned 2010-05-10T15:56:44Z
dc.date.available 2010-05-10T15:56:44Z
dc.date.issued 2010-05-02
dc.identifier.uri http://hdl.handle.net/10197/1949
dc.description.abstract Assessing the trustworthiness of reviews is a key issue for the maintainers of opinion sites such as TripAdvisor. In this paper we propose a distortion criterion for assessing the impact of methods for uncovering suspicious hotel reviews in TripAdvisor. The principle is that dishonest reviews will distort the overall popularity ranking for a collection of hotels. Thus a mechanism that deletes dishonest reviews will distort the popularity ranking significantly, when compared with the removal of a similar set of reviews at random. This distortion can be quantified by comparing popularity rankings before and after deletion, using rank correlation. We present an evaluation of this strategy in the assessment of shill detection mechanisms on a dataset of hotel reviews collected from TripAdvisor. en
dc.description.sponsorship Science Foundation Ireland en
dc.format.extent 680235 bytes
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher University College Dublin en
dc.relation.ispartofseries UCD CSI Technical Reports en
dc.relation.ispartofseries UCD-CSI-2010-04 en
dc.subject User generated content en
dc.subject Credibility en
dc.subject Shilling en
dc.subject.lcsh User-generated content--Evaluation en
dc.subject.lcsh Recommender systems (Information filtering)--Evaluation en
dc.title Distortion as a validation criterion in the identification of suspicious reviews en
dc.type Technical Report en
dc.internal.availability Full text available en
dc.internal.webversions Publisher's version en
dc.internal.webversions http://www.csi.ucd.ie/content/distortion-validation-criterion-identification-suspicious-reviews en
dc.status Not peer reviewed en
dc.neeo.contributor Wu|Guangyu|aut| en
dc.neeo.contributor Greene|Derek|aut| en
dc.neeo.contributor Smyth|Barry|aut| en
dc.neeo.contributor Cunningham|Pádraig|aut| en
dc.description.admin au, ab, pu, ke - OR CR 10/5/10 en


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