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The Big-O problem for labelled Markov chains and weighted automata

Abstract:

Given two weighted automata, we consider the problem of whether one is big-O of the other, i.e., if the weight of every finite word in the first is not greater than some constant multiple of the weight in the second. We show that the problem is undecidable, even for the instantiation of weighted automata as labelled Markov chains. Moreover, even when it is known that one weighted automaton is big-O of another, the problem of finding or approximating the associated constant is also undecidable...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.4230/LIPIcs.CONCUR.2020.41

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Computer Science
Oxford college:
St John's College
Role:
Author
ORCID:
0000-0003-4173-6877
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Institution:
University of Oxford
Division:
MPLS
Department:
Computer Science
Role:
Author
Publisher:
Schloss Dagstuhl
Journal:
LIPIcs More from this journal
Volume:
171
Pages:
1-19
Publication date:
2020-08-26
Acceptance date:
2020-06-29
Event title:
31st International Conference on Concurrency Theory (CONCUR 2020)
Event website:
https://concur2020.forsyte.at/
Event start date:
2020-09-01
Event end date:
2020-09-04
DOI:
ISSN:
1868-8969
ISBN:
9783959771603
Language:
English
Keywords:
Pubs id:
1119180
Local pid:
pubs:1119180
Deposit date:
2020-07-16

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