The knowledge-intensive processes of professional services firms (PSF) demand instruments with which to store, review, and exchange knowledge. Knowledge centers (KCs) are centralized units that meet this demand. They concentrate knowledge on certain business-relevant topics and share it through integrated knowledge management structures. This paper illustrates the concept as well as the differe...

Although Role-Based Access Control (RBAC) is a common security model currently, it has not been systematically applied in databases. In this paper, we propose a framework that enforces RBAC based on dynamic query rewriting. This framework grants privileges to data based on an intersection of roles, database structures, content, and privileges. All of this is implemented at the database level, w...

Data envelopment analysis (DEA) creates many opportunities for collaboration between analyst and decision-maker. There are, however, situations in which all of the decision-making units (DMUs) fall under the umbrella of a centralized decision maker that oversees them. Many organizations such as bank branches, chain stores, … can do this. This centralized decision maker unit expect that resource...

Using or extending Markov decision processes (MDPs) or partially observable Markov decision processes (POMDPs) to model multiagent decision problems has become an important trend. Generally speaking, there are two types of models: centralized ones and decentralized. The centralized ones focus on finding the best joint action given any global state, while the decentralied ones try to find out th...