Keyphrases
- logic programs
- shortest path
- logic programming
- shortest path problem
- answer sets
- fixpoint
- stable models
- answer set programming
- shortest path algorithm
- inductive logic programming
- road network
- weighted graph
- path length
- normal logic programs
- partial deduction
- functional programs
- semantics of logic programs
- finding the shortest path
- loop formulas
- prolog programs
- term rewriting systems
- stable model semantics
- computational properties
- optimal path
- default logic
- approximation algorithms
- knowledge representation
- relational databases