Further Observation to Investigate Tendency of Obtaining Potential Appropriate Respondents to Questions at Q&A Sites with Expansion of Categories

In order to eliminate mismatches between the intentions of questioners and respondents of Question and Answer (Q&A) sites, nine factors of impressions for statements have experimentally been obtained. Factor scores have been then estimated by using the feature values of statements. So far, the possibility of detecting respondents who can appropriately answer a newly posted question has been established for limited several categories e.g. Auction, PC, etc. It has been shown that the distance and the appearance times could lead to selecting users who are able to appropriately answer a question. In order to inspect these tendencies, the objectivity of this paper is to investigate if any further tendency of introducing proper respondents to a questioner could be observed by analyzing the Q&A statements other than those already used and expanding their categories. As a result of analysis, the tendencies that particular several users are inclined to appear in each category has been verified. Quantitative evaluation has also shown the outstanding tendency of answer statements.