Detecção De Cartéis Em Licitações Públicas Com Agentes De Mineração De Dados

Abstract

The Office of the Comptroller General (CGU), as the central agency of Brazil's Federal Government Internal Control is responsible for the fiscalization and auditing to fight and prevent corruption. However, some activities such as government purchasing fraud detection are limited by the difficulty of finding effective solutions, considering the huge volume of data, with millions of finantial registers. In such a context, the proccess of knowledge discovery may take advantage of Data Mining techniques, including classification, clusterization and association rules; which associated to multiagent system enrich the processing power through the interation and distribuiton of data mining agents. Thus, this research work used data mining agents with association rules and clusterization techniques to identify cartels, acting in fraud detection. As a research result, more than one hundred association rules were discovered, of which ten have strong evidence of cartelization, proving the usefulness of the approach to support the work of government auditing.

Implantação do Business Intelligence como ferramenta de auxílio à auditoria de despesas com pessoal no Controle Externo do Tribunal de Contas de Roraima

“…O rol de soluções perpassa por uma extensa gama de possibilidades tecnológicas que vão desde o uso de BI (C. J. Costa & Aparicio, 2011;Cunha et al, 2014;Silva & Ralha, 2010), Inteligência Artificial (Balaniuk et al, 2013;Hu et al, 2013) e Redes Complexas (De Figueiredo et al, 2021); para citar alguns exemplos. Considerando o escopo deste trabalho, serão abordadas apenas soluções que envolvam a tecnologia de BI.…”

A percepção do citricultor sobre a indústria paulista de suco de laranja: parceria ou conflito?

“…Estas poucas empresas disponíveis, por sua vez, são inclusive acusadas pelo Entrevistado 1 de serem cartelizadas. A formação de cartel seria um acordo entre concorrentes com objetivo de fixar preços ou cotas de produção, dividindo clientes e mercados de atuação, eliminando a concorrência (Silva & Ralha, 2010). A formação de cartel, segundo Sauaia & Kállas (2007), é uma ação de cooperação considerada ilegal, e é investigada pelo Conselho Administrativo de Defesa Econômica (Cade) (Silva & Ralha, 2010).…”

Multiagent System for Image Mining

“…The area of agents, for example, aims to study the autonomous and independent behavior of agents, and data mining, more comprehensively, dealt with the KDD process. Despite emerged separately, several similar aspects of these areas appear such as user-system interaction, human roles and involvement, constraints, dynamic modeling, life-cycle and process management, domain factor, and organizational and social factors [43].…”

“…A few years ago, researchers have studied means of joining forces between agent and data mining technologies. These studies have given rise to a new research field which became known as agent mining [44][45][46][47][48][49] or agent-mining interaction and integration [43,[50][51][52]. Agent mining is the most popular term.…”