Výsledky vyhledávání - "Gomes, Luiz H."

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Quantifying social vs. antisocial behavior in email networks

Autor: Gomes, Luiz H., Bettencourt, Luis M. A., Almeida, Virgilio A. F., Almeida, Jussara M., Castro, Fernando D. O.

Email graphs have been used to illustrate general properties of social networks of communication and collaboration. However, increasingly, the majority of email traffic reflects opportunistic, rather than symbiotic social relations. Here we use e-mai

Externí odkaz: http://arxiv.org/abs/physics/0601141

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Improving Spam Detection Based on Structural Similarity

Autor: Gomes, Luiz H., Castro, Fernando D. O., Almeida, Rodrigo B., Bettencourt, Luis M. A., Almeida, Virgilio A. F., Almeida, Jussara M.

We propose a new detection algorithm that uses structural relationships between senders and recipients of email as the basis for the identification of spam messages. Users and receivers are represented as vectors in their reciprocal spaces. A measure

Externí odkaz: http://arxiv.org/abs/cs/0504012

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Comparative Graph Theoretical Characterization of Networks of Spam and Legitimate Email

Autor: Gomes, Luiz H., Almeida, Rodrigo B., Bettencourt, Luis M. A., Almeida, Virgilio, Almeida, Jussara M.

Email is an increasingly important and ubiquitous means of communication, both facilitating contact between private individuals and enabling rises in the productivity of organizations. However the relentless rise of automatic unauthorized emails, a.k

Externí odkaz: http://arxiv.org/abs/physics/0504025

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