Automatic identification of the interests of web users

In the present article an approach to automatic determination of a user’s sphere of interests is proposed. The approach is based on a method involving clustering of documents which the user is interested in. The process of clustering of documents is reduced to a problem of discrete optimization for which quadratic-and linear-type models are proposed. Identification of interests makes it possible to determine the context of a request without any effort on the user’s part. Different methods are proposed for determining the context of a request. An ant algorithm for solving a quadratic-type discrete optimization problem is also proposed in the present study.