Multi-weighted Automata and MSO Logic

Manfred Droste; Vitaly Perevoshchikov

doi:10.1007/978-3-642-38536-0_36

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arXiv · 1506.06024

Multi-weighted Automata and MSO Logic

Manfred Droste·Vitaly Perevoshchikov

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Abstract

Weighted automata are non-deterministic automata where the transitions are equipped with weights. They can model quantitative aspects of systems like costs or energy consumption. The value of a run can be computed, for example, as the maximum, limit average, or discounted sum of transition weights. In multi-weighted automata, transitions carry several weights and can model, for example, the ratio between rewards and costs, or the efficiency of use of a primary resource under some upper bound constraint on a secondary resource. Here, we introduce a general model for multi-weighted automata as well as a multiweighted MSO logic. In our main results, we show that this multi-weighted MSO logic and multi-weighted automata are expressively equivalent both for finite and infinite words. The translation process is effective, leading to decidability results for our multi-weighted MSO logic.

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Manfred Droste, Vitaly Perevoshchikov. 2015-06-19. Multi-weighted Automata and MSO Logic. https://doi.org/10.1007/978-3-642-38536-0_36

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