Modelagem de Aliciamento de Menores em Mensagens Instantâneas de Texto
Resumo
As abordagens existentes na literatura não são modeladas para detecção do aliciamento sexual de menores, mas apenas fazem a descoberta do estágio de aliciamento numa comunicação entre o agressor e sua vítima. Além disto, mostram baixa eficiência em função do emprego de um perfil único para a descoberta dos estágios. Este artigo considera a descoberta dos estágios de aliciamento com o perfil do agressor e da vítima separadamente. Esta abordagem, baseada em avaliação estocástica (i.e. HMM), visa a modelagem individual de cada perfil para aumentar a eficiência da detecção. Os experimentos mostram taxas de acerto promissoras com resultados próximos a 91%.
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HTK toolkit. Disponível em <http://htk.eng.cam.ac.uk/>. Acesso em 04 de junho de 2012.
Kontostathis, A.; Edwards, L.; Leatherman, A.. "ChatCoder: Toward the Tracking and Categorization of Internet Predators". Proceedings of 2009 Text Mining Workshop - Society for Industrial and Applied Mathematics International Conference on Data Mining, May 2009.
Kontostathis, A.; Edwards, L.; Bayzick, J.; McGhee, I.; Leatherman, A.; Moore, K.. "Comparison of Rule-based to Human Analysis of Chat Logs". International Workshop on Mining Social Media, November 2009.
Leatherman, A.. "Luring language and virtual victims: Coding cyber-predators online communicative behavior". Technical report of Ursinus College, 2009.
McGhee, I.; Bayzick, J.; Kontostathis, A.; Edwards, L.; McBride, A.; Jakubowski, E.. "Learning to Identify Internet Sexual Predation". International Journal of Electronic Commerce, 2011. Vol. 15, p. 103-122.
Michalopoulos, D.; Mavridis, I.. "Towards Risk Based Prevention of Grooming Attacks". International Conference on Security and Cryptography, July 26-28, 2010. p. 1-4.
National Center for Missing and Exploited Children. Disponível em <http://www.missingkids.com/en_US/documents/CyberTiplineFactSheet.pdf>. Acesso em 17 de fevereiro de 2012.
Olson, L. N.; Daggs, J. L.; Ellevold, B. L.; Rogers, T. K. K.. "Entrapping the Innocent: Toward a Theory of Child Sexual Predators"™ Luring Communication". Communication Theory, 2007. Vol. 17, p. 231-251.
Perverted Justice Foundation Incorporated. Disponível em <https://www.pervertedjustice.com>. Acesso em janeiro de 2012.
Rabiner, L.R.; Juang, B-H.. "Fundamentals of speech recognition". Prentice Hall Inc., Englewood Clifss, New Jersey, 1993.
Rabiner, L. R.. "A Tutorial on Hidden Markov Models and Selected Applications in Speech Recognition". Proceedings of the IEEE, February, 1989. Vol. 77, No. 2, p.257-286.
Rashid, A.. "The Talk of Crime". Investigative Practice Journal, July 10, 2008. p. 28-29.
Szoke, I.. "Speech Units Automatically Generated by Ergodic Hidden Markov Model". Proceedings of 10th Conference and Competition Student EEICT, 2004. Vol. 1.
Publicado
19/11/2012
Como Citar
SANTIN, Priscilla L. L.; FREITAS, Cinthia O. A.; PARAÍSO, Emerson C.; SANTIN, Altair O..
Modelagem de Aliciamento de Menores em Mensagens Instantâneas de Texto. In: SIMPÓSIO BRASILEIRO DE SEGURANÇA DA INFORMAÇÃO E DE SISTEMAS COMPUTACIONAIS (SBSEG), 12. , 2012, Curitiba.
Anais [...].
Porto Alegre: Sociedade Brasileira de Computação,
2012
.
p. 288-301.
DOI: https://doi.org/10.5753/sbseg.2012.20553.
