Análisis de datos sobre virus Informáticos

El trabajo fin de grado que se presenta en este documento trata de “Aplicar técnicas de Data Mining a un conjunto de datos procedentes de ataques de virus informáticos interceptados en servidores de Internet”. La propuesta de este trabajo surgió de una Institución con el fin de extraer información de un conjunto de datos proveniente de ejecuciones de virus informáticos. Lamentablemente, debido a fuertes restricciones de privacidad por parte de esta Institución y así como al relevo de la persona responsable de éste área en dicha Institución, el Proyecto finalmente se canceló. Como consecuencia, y teniendo en cuenta el carácter didáctico de este trabajo fin de grado, el proyecto KDD (Knowledge Discovery in Databases) en sí y sus objetivos de negocio y objetivos de data mining, se han establecido conforme con la misma temática de predicción de ataques de virus que había planteado la Institución en el pasado, contando con una base de datos que ha sido recopilada de diferentes empresas anónimas. Para llevar un desarrollo estructurado de todas las fases del proceso KDD, se ha trabajado siguiendo como referencia una metodología para proyectos de Data Mining, “CRISP-DM”, cuyo estándar incluye un modelo y una guía, estructurados en seis fases. Como herramienta de Data Mining a utilizar, se ha elegido el software de libre distribución “WEKA”. Por último, cabe destacar que el proyecto ha concluido satisfactoriamente, lográndose cada una de las metas establecidas como proyecto de minería de datos.

Manteniment d'equips informàtics : maquinari i programari. 'Mantenimiento de equipos informáticos : hardware y software'.

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Manteniment d'aules d'informàtica. 'Mantenimiento de aulas de informática'.

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El rol del auditor operativo

Esta investigación está orientada a brindar herramientas y conceptos básicos al auditor operativo, que le permitan interactuar con los medios y técnicas de procesamiento electrónico de datos, a los efectos de cumplimentar adecuadamente la función profesional en la auditoria de sistemas computarizados, abarcando el análisis de riesgos y amenzas, como así también los aspectos más relevantes del delito informático.

Weather variability, tides, and Barmah Forest Virus Disease in the Gladstone region, Australia

In this study we examined the impact of weather variability and tides on the transmission of Barmah Forest virus (BFV) disease and developed a weather-based forecasting model for BFV disease in the Gladstone region, Australia. We used seasonal autoregressive integrated moving-average (SARIMA) models to determine the contribution of weather variables to BFV transmission after the time-series data of response and explanatory variables were made stationary through seasonal differencing. We obtained data on the monthly counts of BFV cases, weather variables (e.g., mean minimum and maximum temperature, total rainfall, and mean relative humidity), high and low tides, and the population size in the Gladstone region between January 1992 and December 2001 from the Queensland Department of Health, Australian Bureau of Meteorology, Queensland Department of Transport, and Australian Bureau of Statistics, respectively. The SARIMA model shows that the 5-month moving average of minimum temperature (β = 0.15, p-value < 0.001) was statistically significantly and positively associated with BFV disease, whereas high tide in the current month (β = −1.03, p-value = 0.04) was statistically significantly and inversely associated with it. However, no significant association was found for other variables. These results may be applied to forecast the occurrence of BFV disease and to use public health resources in BFV control and prevention.

Geographic Variation of Notified Ross River Virus Infections in Queensland, Australia, 1985-1996

The spatial and temporal variations of Ross River virus infections reported in Queensland, Australia, between 1985 and 1996 were studied by using the Geographic Information System. The notified cases of Ross River virus infection came from 489 localities between 1985 and 1988, 805 between 1989 and 1992, and 1,157 between 1993 and 1996 (chi2(df = 2) = 680.9; P < 0.001). There was a marked increase in the number of localities where the cases were reported by 65 percent for the period of 1989-1992 and 137 percent for 1993-1996, compared with that for 1985-1988. The geographic distribution of the notified Ross River virus cases has expanded in Queensland over recent years. As Ross River virus disease has impacted considerably on tourism and industry, as well as on residents of affected areas, more research is required to explore the causes of the geographic expansion of the notified Ross River virus infections.

Experimental Infection of Culex Annulirostris, Culex Gelidus, and Aedes Vigilax With a Yellow Fever/Japanese Encephalitis Virus Vaccine Chimera (Chimerivax TM-JE)

Australian mosquitoes from which Japanese encephalitis virus (JEV) has been recovered (Culex annulirostris, Culex gelidus, and Aedes vigilax) were assessed for their ability to be infected with the ChimeriVax-JE vaccine, with yellow fever vaccine virus 17D (YF 17D) from which the backbone of ChimeriVax-JE vaccine is derived and with JEV-Nakayama. None of the mosquitoes became infected after being fed orally with 6.1 log(10) plaque-forming units (PFU)/mL of ChimeriVax-JE vaccine, which is greater than the peak viremia in vaccinees (mean peak viremia = 4.8 PFU/mL, range = 0-30 PFU/mL of 0.9 days mean duration, range = 0-11 days). Some members of all three species of mosquito became infected when fed on JEV-Nakayama, but only Ae. vigilax was infected when fed on YF 17D. The results suggest that none of these three species of mosquito are likely to set up secondary cycles of transmission of ChimeriVax-JE in Australia after feeding on a viremic vaccinee.