Abstract
Once a customer wants to capture critical information from the comments for a product/service, he/she has to search for the comments related to the product/service via the Internet. As the customer browses the comments, he/she usually has to spend much time to acquire the emotional tendency of the product/service. Furthermore, the customer often regards that the value of each comment is of equal importance. That is, the representativeness of distinct comments is usually ignored. In order to solve this problem, this research develops a model for comment value evaluation. The proposed model can be used to visually reveal the values of distinct comments and the integrated evaluation of the product/service. By utilizing this model, the customer can easily acquire representativeness of each comment and the integrated evaluation of product/service characteristics in order to efficiently make purchase decisions.