Original title:
LP relaxations and pruning for characteristic imsets
Authors:
Studený, Milan Document type: Research reports
Year:
2012
Language:
eng Series:
Research Report, volume: 2323 Abstract:
The geometric approach to learning BN structure is to represent it by a certain vector; a suitable such zero-one vector is the characteristic imset, which allows to reformulate the task of finding global maximum of a score over BN structures as an integer linear programming problem. The main contribution of this report is an LP relaxation of the corresponding polytope, that is, a polyhedral description of the domain of the respective integer linear programming problem.
Keywords:
integer linear programming; learning Bayesian network structure; quality criterion Project no.: GA201/08/0539 (CEP) Funding provider: GA ČR