Abstract
In order to avoid the problem of mismatch between the questioner and the respondent at Q & A sites, we have experimentally evaluated the impression of 60 question and answer statements posted at Yahoo! Chiebukuro by using 50 impression words. Nine factors as to statements have been obtained by applying the factor analysis to the scores obtained through the experiment. Factor scores of any other statements have been tried to be estimated by using multiple regression analysis. This paper tries to estimate those factor scores through the multiple regression analysis by adopting such feature values as syntactic information, word imageability and closing sentence expressions. As a result, estimation accuracy for every factor is overall well and drastically improved by focusing on closing sentence expressions as well as syntactic information and word imageability. The validity of estimation is also confirmed by inspecting important feature values.
