Bilevel programming deals with hierarchical optimization problems in which the leader at the upper level attempts to optimize his or her objectives, but subject to a set of constraints and the follower's reactions. Typical ...

The emergence of semantic overlay networks as instruments to improve security, trust and stability in distributed virtual communities is recognized widely in the research community. We propose a fuzzy logic based framework ...

Knowledge 'decay' is a measure of the degradation of knowledge integrity. In a unified knowledge representation, data, information and knowledge are all represented in a single formalism as "items". A unified ...

Pairs mining targets to mine pairs relationship between entities such as between stocks and markets in financial data mining. It has emerged as a kind of promising data mining applications. Due to practical complexities ...

Many business decisions can be modeled as multiple objective linear programming (MOLP) problems. When formulating a MOLP problem. objective functions and constraints involve many parameters which possible values are ...

Decider is a Fuzzy Hierarchical Multiple Criteria Group Decision Support System (FHMC-GDSS) designed for dealing with subjective, in particular linguistic, information and objective information simultaneously to support ...

Bilevel programming provides a means of supporting two level non-cooperative decision-making. When a decision maker at the upper level (the leader) attempts to optimize an objective, the decision maker at the lower level ...

Localisation for human or robots in built environment is one of impartment issue in many applications. Increasing mobile computing devices, that often require knowing where things are actually placed, can be utilised ...