Due to the advancement of Web 2.0 technologies, a large volume of Web opinions is available on social media sites such as Web forums and Weblogs. These technologies provide a platform for Internet users around the world to communicate with each other and express their opinions. Web opinions are short and sparse text messages with noisy content. In this paper, we are using a sparse matrix representation for web opinions and defining a preprocess way for it. Here, we are proposing an algorithm for matrix generation from vector of thread’s. Due to this representation, we use opinions in efficient way.