in this paper, we study the generalized bin covering problem. for this problem an exact algorithm is introduced which can nd optimal solution for small scale instances. to nd a solution near optimal for large scale instances, a heuristic algorithm has been proposed. by computational experiments, the eciency of the heuristic algorithm is assessed.

ZigBee is a new low complexity, low cost and low power wireless communication technology. ZigBee technology is used to build a wireless sensor network and we must consider the energy saving and simple of algorithm in designing routing algorithm for wireless sensor networks. As heuristic search algorithm of ant colony optimization has the advantages of good distribution, strong global search cap...

For ubiquitous computing to spread, users should be able to easily augment their cognitive environments using tags, sensors etc. However, very little is known about the psychological processes that drive such augmentation. We have developed a model of this process, and report two experiments where participants readily added 'cognitively congenial' structures to the environment for agents simila...

Inventory record inaccuracy deteriorates supply chain performance because it leads to ineffective replenishment decisions. Conducting cycle counts (i.e., periodic inventory auditing) is a common approach to correct inventory records. It is not clear, however, how inaccuracy at different locations affects supply chain performance and how an effective cycle-count program for a multi-stage supply ...

Social Network Services are known as a effective marketing platform in that the customers trust the advertisement provided by their friends and neighbors. Viral Marketing is a marketing technique that uses the pre-constructed social networks to perform maketing with small cost while maximizing the spread. Therefore, which seed user to select is the primary concern in viral marketing. Influence ...

Computer-aided process planning (CAPP) is an essential component in linking computer-aided design (CAD) and computer-aided manufacturing (CAM). Operation sequencing in CAPP is an essential activity. Each sequence of production operations which is produced in a process plan cannot be the best possible sequence every time in a changing production environment. As the complexity of the product incr...