In this article, we consider the set covering problem with conflict constraints, i.e., from each conflicting pair of columns, at most one column can appear in the feasible solution, and we seek to identify (select) a subset of columns so as to achieve two distinct objectives. The first objective...

Data warehouse management is fast becoming one of the most popular and important topics in industries today. For business executives, it promises significant competitive advantage for their companies, while presenting the information system managers a way to overcome the obstructions in...

Count data with excess zeros are commonly seen in experiments forimproving electronics manufacturing quality, in medical researchof HIV patients with high-risk behaviors and in agricultural study of number of insects per leaf.Yip (1988) and Lambert (1992) proposed zero-inflated Poisson...