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Today, there is an abundance of information and services in heterogeneous contexts, such as converged environments (Next Generation Networks) available for end users. However, the developments of Telecommunications and Internet converged services represent a high level of complexity for users without technical skills, since user's requests are represented by complex expressions that describe the required services. Thus, the search and selection of these services depend on the ability of the user to retrieve the most suitable ones, converting this labor in an inefficient task.
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