Sampling techniques applied to anomalous events detection

Dissertação de mestrado integrado em Engenharia InformáticaNowadays, one of the major worries about a network is security. Since the network has become the big platform it is, the number of attacks or attempts to steal information or just harm someone or something is getting bigger to handle or harder to find. Sampling techniques help to solve these problems as they are used to reduce the scope of the analysis, as well as the resources needed to perform it. By using sample techniques to search and find the attacks in the network traffic it will become easier to detect attacks and keep the network secure. As will be seen in the following sections, joining sampling and security is not an easy task to do. Questions such as, what are the best techniques to be used, what are the best methods to be implemented, are inevitable when using sampling. However, sampling can bring more advantages than disadvantages. Besides that, depending on the chosen measurement method, sampling technique or algorithm performed to analyse the samples, the results can change a lot according to the target for the technique. To achieve results for evaluation, a Network-based Intrusion Detection System (NIDS) will be used to identify anomalous events present in the samples.Hoje em dia, uma das maiores preocupações com uma rede é a segurança. Como a rede se tornou a grande plataforma que é, o número de ataques ou tentativas de roubar informações ou apenas prejudicar alguém ou algo está cada vez maior ou mais difícil de encontrar. As téc nicas de amostragem ajudam a resolver esses problemas visto que são utilizadas para reduzir o escopo da análise assim como os recursos necessários para realizar a mesma. Usando técnicas de amostra para procurar e localizar os ataques no tráfego da rede, facilita prevenir ataques e manter a rede segura. Como será constatado nas próximas secções, juntar amostragem e segurança não é uma tarefa fácil. Questões como, quais são as melhores técnicas a serem utilizadas, quais os melhores métodos a serem implementados, são inevitáveis aquando da utilização de amostragem. Contudo, amostragem pode trazer mais vantagens do que desvan tagens. Além disso, dependendo do método de medição escolhido, técnica de amostragem ou algoritmo usado para analisar as amostras, os resultados podem variar muito consoante o alvo da técnica. Para alcançar resultados para avaliação vai ser utilizado um Network-based Intrusion Detection System (NIDS) de forma a identificar os eventos anómalos presentes nas amostragens

Riverine sustainment 2012

Student Integrated ProjectIncludes supplementary materialThis technical report analyzed the Navy's proposed Riverine Force (RF) structure and capabilities for 2012. The Riverine Sustainment 2012 Team (RST) examined the cost and performance of systems of systems which increased RF sustainment in logistically barren environments. RF sustainment was decomposed into its functional areas of supply, repair, and force protection. The functional and physical architectures were developed in parallel and were used to construct an operational architecture for the RF. The RST used mathematical, agent-based and queuing models to analyze various supply, repair and force protection system alternatives. Extraction of modeling data revealed several key insights. Waterborne heavy lift connectors such as the LCU-2000 are vital in the re-supply of the RF when it is operating up river in a non-permissive environment. Airborne heavy lift connectors such as the MV-22 were ineffective and dominated by the waterborne variants in the same environment. Increase in manpower and facilities did appreciable add to the operational availability of the RF. Mean supply response time was the biggest factor effecting operational availability and should be kept below 24 hours to maintain operational availability rates above 80%. Current mortar defenses proposed by the RF are insufficient.N

The Political Economy of Pro-Poor Livestock Policy in Cambodia

This paper presents a case study of how livestock policies are made and implemented in a national context, and how they can be improved to better serve the interests of the poor in Cambodia. Opportunities exist for improving rural livelihoods in Cambodia through the export of livestock. While Cambodia claims little of the official export market for cattle, huge demand exists within the region and beyond. Three strategic entry points are recommended that can both improve the performance of the sector and the participation of the poor in productive activities.Livestock Production/Industries, Political Economy,

Virginia Commonwealth University Undergraduate Bulletin

Undergraduate bulletin for Virginia Commonwealth University for the academic year 2021-2022. It includes information on academic regulations, degree requirements, course offerings, faculty, academic calendar, and tuition and expenses for undergraduate programs

Virginia Commonwealth University Undergraduate Bulletin

Undergraduate bulletin for Virginia Commonwealth University for the academic year 2022-2023. It includes information on academic regulations, degree requirements, course offerings, faculty, academic calendar, and tuition and expenses for undergraduate programs

Virginia Commonwealth University Graduate Bulletin

Graduate bulletin for Virginia Commonwealth University for the academic year 2020-2021. It includes information on academic regulations, degree requirements, course offerings, faculty, academic calendar, and tuition and expenses for graduate programs

Virginia Commonwealth University Graduate Bulletin

Graduate bulletin for Virginia Commonwealth University for the academic year 2021-2022. It includes information on academic regulations, degree requirements, course offerings, faculty, academic calendar, and tuition and expenses for graduate programs

Virginia Commonwealth University Undergraduate Bulletin

Undergraduate bulletin for Virginia Commonwealth University for the academic year 2019-2020. It includes information on academic regulations, degree requirements, course offerings, faculty, academic calendar, and tuition and expenses for undergraduate programs

Virginia Commonwealth University Graduate Bulletin

Graduate bulletin for Virginia Commonwealth University for the academic year 2022-2023. It includes information on academic regulations, degree requirements, course offerings, faculty, academic calendar, and tuition and expenses for graduate programs

Virginia Commonwealth University Undergraduate Bulletin

Undergraduate bulletin for Virginia Commonwealth University for the academic year 2020-2021. It includes information on academic regulations, degree requirements, course offerings, faculty, academic calendar, and tuition and expenses for undergraduate programs