<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>Dai, Lu</dc:creator>
  <dc:creator>Guo, Qiang</dc:creator>
  <dc:creator>Liu, Xiao-Lu</dc:creator>
  <dc:creator>Liu, Jian-Guo</dc:creator>
  <dc:creator>Zhang, Yi-Cheng</dc:creator>
  <dc:date>2018-03-15</dc:date>
  <dc:description xmlns:ns0="xml" ns0:lang="en">Identifying online user reputation is significant for online social systems. In this paper,  taking into account the preference physics of online user collective behaviors, we  present an improved group-based rating method for ranking online user reputation  based on the user preference (PGR). All the ratings given by each specific user are  mapped to the same rating criteria. By grouping users according to their mapped  ratings, the online user reputation is calculated based on the corresponding group  sizes. Results for MovieLens and Netflix data sets show that the AUC values of the  PGR method can reach 0.9842 (0.9493) and 0.9995 (0.9987) for malicious (random)  spammers, respectively, outperforming the results generated by the traditional group- based method, which indicates that the online preference plays an important role for  measuring user reputation.</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>https://folia.unifr.ch/global/documents/306585</dc:identifier>
  <dc:identifier>https://folia.unifr.ch/documents/306585/files/zha_iou.pdf</dc:identifier>
  <dc:language>eng</dc:language>
  <dc:relation>info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physa.2017.12.020</dc:relation>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>License undefined</dc:rights>
  <dc:source>Physica A: Statistical Mechanics and its Applications. - 2018, vol. 494, p. 403–409</dc:source>
  <dc:subject>info:eu-repo/classification/udc/53</dc:subject>
  <dc:title xmlns:ns1="xml" ns1:lang="en">Identifying online user reputation in terms of user preference</dc:title>
  <dc:type>http://purl.org/coar/resource_type/c_6501</dc:type>
</oai_dc:dc>