Cologne: A Declarative Distributed Constraint Optimization Platform

Provided by: University of Pennsylvania
Topic: Mobility
Format: PDF
This paper presents Cologne, a declarative optimization platform that enables Constraint Optimization Problems (COPs) to be declaratively specified and incrementally executed in distributed systems. Cologne integrates a declarative networking engine with an off-the-shelf constraint solver. The authors have developed the Colog language that combines distributed Datalog used in declarative networking with language constructs for specifying goals and constraints used in COPs. Cologne uses novel query processing strategies for processing Colog programs, by combining the use of bottom-up distributed Datalog evaluation with top-down goal-oriented constraint solving.

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