Tag-based Chat Support System to Remind Users of Contents of Past Conversations

In this article, we propose a chat system that helps users remember and resume past conversations by using tags. In computer- mediated communication such as online chat, it is often difficult in communication to continue conversations regarding issues that have been discussed in the past because they may have forgotten the contents of the issue. Our system adds tags for each chat logs based on words that were used in the chat and displays the tags when users restart the interrupted chat. As a result of three experiments with the proposed system, it revealed that display of tags is useful to remind users of contents of past conversations.