Problem-solving in open environments

With the increasing use of the internet, many problemsolving tasks such as resource allocation, scheduling, planning, and configuration pose themselves in an open setting involving multiple participants. Existing search-based problem-solving techniques are based on the closed-world assumption and require that all options be collected before problem-solving can start. This approach of turning the web into a virtual database often leads to gathering much more information than necessary to solve the problem. We consider constraint satisfaction as the most successful practical problem solving technique, and define open constraint satisfaction where values are incrementally gathered during problem solving. We present several algorithms for open constraint satisfaction and show that on random problems, they require gathering significantly less values. We then extend the technique to constraint optimization using the fuzzy CSP model, and show that here too great efficiency gains can be a...

• Type: Conference
• Year: 2003
• Where: IAT
• Authors: Santiago Macho-Gonzalez, Boi Faltings
• Keywords: Constraint Satisfaction, IAT 2003, Intelligent Agent, Open Constraint Satisfaction, Problem Solving