Result Details
Succinct Determinisation of Counting Automata via Sphere Construction
Holíková Lenka, Ing., Ph.D., DITS (FIT)
Lengál Ondřej, doc. Ing., Ph.D., DITS (FIT)
Vojnar Tomáš, prof. Ing., Ph.D., DITS (FIT)
SAARIKIVI, O.
Veanes Margus
We propose an efficient algorithm for determinising counting automata(CAs), i.e., finite automata extended with bounded counters. The algorithm avoidsunfolding counters into control states, unlike the nave approach, and thus producesmuch smaller deterministic automata. We also develop a simplified and fasterversion of the general algorithm for the sub-class of so-called monadic CAs(MCAs), i.e., CAs with counting loops on character classes, which are common inpractice. Our main motivation is (besides applications in verification and decisionprocedures of logics) the application of deterministic (M)CAs in pattern matchingregular expressions with counting, which are very common in e.g. network trafficprocessing and log analysis. We have evaluated our algorithm against practicalbenchmarks from these application domains and concluded that compared to thenave approach, our algorithm is much less prone to explode, produces automatathat can be several orders of magnitude smaller, and is overall faster.
automata, counter automata, finite automata, XML schema, regular expressions, determinization
@inproceedings{BUT161860,
author="HOLÍK, L. and HOLÍKOVÁ, L. and LENGÁL, O. and VOJNAR, T. and SAARIKIVI, O. and VEANES, M.",
title="Succinct Determinisation of Counting Automata via Sphere Construction",
booktitle="In Proc. of 17th Asian Symposium on Programming Languages and Systems - APLAS'19",
year="2019",
journal="Lecture Notes in Computer Science",
number="11893",
pages="468--489",
publisher="Springer Verlag",
address="Berlin Heidelberg",
doi="10.1007/978-3-030-34175-6\{_}24",
issn="0302-9743",
url="https://www.fit.vut.cz/research/publication/12077/"
}
Bezpečné a spolehlivé počítačové systémy, BUT, Vnitřní projekty VUT, FIT-S-17-4014, start: 2017-03-01, end: 2020-02-29, completed
IT4Innovations excellence in science, MŠMT, Národní program udržitelnosti II, LQ1602, start: 2016-01-01, end: 2020-12-31, completed