nswer Garden[1,2]and the DEMOIR approach[58]have beendeveloped tofind the appropriate expert for a given problem in an or-ganization. Both systems achieved satisfactory results in the contextof organizations.Compared with organizations, online KCs usually do not have auniversal knowledge structure (e.g., a hierarchical structure). Knowl-edge is generated when community users are engaged in online dis-cussions and try to help each other solve problems. Informationstored in KCs tends to have low information quality due to the factthat KC participants make voluntary contributions and have no obli-gation to maintain high information quality. Poor information qualitywill definitely affect the performance of knowledge managementactivities that involve information processing. Moreover, informationquality is strongly related to the perceived usefulness and acceptanceof information technology[30].