Guilherme Tavares de Assis

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This work addresses the development of a unified approach to content-based indexing and retrieval of digital videos from television archives. The proposed approach has been designed to deal with arbitrary television genres, making it suitable for various applications. To achieve this goal, the main steps of a content-based video retrieval system are(More)
Author name ambiguity is a hard problem that occurs when several authors publish articles with the same name or when a same author publishes their articles under different names. Traditionally, automatic disambiguation methods process the author names of all citation records in a repository. Aiming efficiency, incremental methods disambiguate author names(More)
This paper presents a novel multimedia information system, called SAPTE, for supporting the discourse analysis and information retrieval of television programs from their corresponding video recordings. Unlike most common systems, SAPTE uses both content independent and dependent metadata, which are determined by the application of discourse analysis(More)
The genre-aware approach to focused crawling aims at crawling pages related to specific topics that can be expressed in terms of both genre and content information. Such an approach requires an expert to specify a set of terms that describe the genre and the content of the pages of interest. In this paper, we analyze the impact of term selection on this(More)