Recent changes in web technologies have given a voice to consumers in online discussion of products and services. While the web has long been a source of information about products and services, web content was controlled by those who knew how to develop for the web, or those who could hire web developers. The trend toward web software that permits novice users to contribute to conversations ab...

In recent years, the spectacular development of web technologies, lead to an enormous quantity of user generated information in online systems. This large amount of information on web platforms make them viable for use as data sources, in applications based on opinion mining and sentiment analysis. The paper proposes an algorithm for detecting sentiments on movie user reviews, based on naive Ba...