摘要:This study is an exploratory attempt to use automatic linguistic analysis for understanding social media users’ news commenting behavior. The study addresses geographically–based dynamics in human–computer interaction, namely, users’ tie to a geographic community. Specifically, the study reveals that commenting behavior differs between users of different levels of local community tie. Comments by local users, those with higher level of local community tie, exhibit different linguistic patterns in comparison to national users who are less involved in local community. The linguistic differences are reflected in the use of pronouns, personal pronouns, social words, swear words, anxiety words and anger words. We argue that identification of the difference is crucial in the practice of mining social media conversations for public opinion.