Title
On the Computational Complexity of Stochastic Controller Optimization in POMDPs
Abstract
We show that the problem of finding an optimal stochastic blind controller in a Markov decision process is an NP-hard problem. The corresponding decision problem is NP-hard in PSPACE and sqrt-sum-hard, hence placing it in NP would imply breakthroughs in long-standing open problems in computer science. Our result establishes that the more general problem of stochastic controller optimization in POMDPs is also NP-hard. Nonetheless, we outline a special case that is convex and admits efficient global solutions.
Year
DOI
Venue
2011
10.1145/2382559.2382563
ACM Transactions on Computation Theory (TOCT)
Keywords
DocType
Volume
markov decision process,special case,general problem,long-standing open problem,optimal stochastic blind controller,computational complexity,corresponding decision problem,efficient global solution,computer science,np-hard problem,stochastic controller optimization,decision problem,artificial intelligent,partially observable markov decision process,polynomial time,nonlinear optimization,np hard problem
Journal
4
Issue
ISSN
Citations 
4
1942-3454
10
PageRank 
References 
Authors
0.55
18
3
Name
Order
Citations
PageRank
Nikos A. Vlassis12050158.24
Michael L. Littman29798961.84
David Barber340445.57