A Business Intelligence Methodology for E-government Reverse Auctions

In the first quarter of year 2008, electronic reverse auctions (e-RAs) allowed the Brazilian Government to save up to US$ 270 million, which account for 87% of its acquisitions in the period, against 1% in the same period 6 years earlier - according to the Ministry of Planning, Budget and Management. A tool of such importance is subjected to fraud or even anomalous behaviors, which are difficult to detect with simple analysis over the current...