<span>Privacy preserving data mining has become the focus of attention government statistical agencies and database security research community who are concerned with preventing privacy disclosure during mining. Repositories large datasets include sensitive rules that need to be concealed from unauthorized access. Hence, association rule hiding emerged as one powerful techniques for knowl...

In this paper, we propose an integer linear programming model whose solutions are the aperiodic rhythms tiling with a given rhythm A. We show how it can be used to define iterative algorithm that, period n, finds all which tile A and also efficiently check necessity of Coven-Meyerowitz condition (T2). To conclude, run several experiments validate time efficiency model.

We consider the problem of determining realistic and easy-to-schedule lot sizes in a multiproduct, multistage manufacturing environment. We concentrate on a specific type of production, namely, flow shop type production. The model developed consists of two parts, lot sizing problem and scheduling problem. In lot sizing problem, we employ binary integer programming and determine reorder interval...

Finding differentially regulated subgraphs in a biochemical network is an important problem in bioinformatics. We present a new model for finding such subgraphs which takes the polarity of the edges (activating or inhibiting) into account, leading to the problem of finding a connected subgraph induced by k vertices with maximum weight. We present several algorithms for this problem, including d...

This paper investigates how grammatical genetic programming performs for evolving simple integer list manipulation functions. We propose three sub-problems which are related to, or component of integer sorting problem as defined by genetic programming literature. We further investigate the effects of modifying evolutionary parameters, such as the number of generations allowed, number of populat...