2017
PTrie: Data Structure for Compressing and Storing Sets via Prefix Sharing
JENSEN, Peter G., Kim G. LARSEN a Jiří SRBAZákladní údaje
Originální název
PTrie: Data Structure for Compressing and Storing Sets via Prefix Sharing
Autoři
JENSEN, Peter G. (208 Dánsko), Kim G. LARSEN (208 Dánsko) a Jiří SRBA (203 Česká republika, garant, domácí)
Vydání
Holland, Proceedings of the 14th International Colloquium on Theoretical Aspects of Computing (ICTAC'17), od s. 248-265, 18 s. 2017
Nakladatel
Springer
Další údaje
Jazyk
angličtina
Typ výsledku
Stať ve sborníku
Obor
10200 1.2 Computer and information sciences
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Forma vydání
tištěná verze "print"
Impakt faktor
Impact factor: 0.402 v roce 2005
Kód RIV
RIV/00216224:14330/17:00100449
Organizační jednotka
Fakulta informatiky
ISBN
978-3-319-67728-6
ISSN
UT WoS
000516829800015
Klíčová slova anglicky
data structure; set; prefix sharing; model checking
Změněno: 16. 5. 2022 14:38, Mgr. Michal Petr
Anotace
V originále
Sets and their efficient implementation are fundamental in all of computer science, including model checking, where sets are used as the basic data structure for storing (encodings of) states during a state-space exploration. In the quest for fast and memory efficient methods for manipulating large sets, we present a novel data structure called PTrie for storing sets of binary strings of arbitrary length. The PTrie data structure distinguishes itself by compressing the stored elements while sharing the desirable key characteristics with conventional hash-based implementations, namely fast insertion and lookup operations. We provide the theoretical foundation of PTries, prove the correctness of their operations and conduct empirical studies analysing the performance of PTries for dealing with randomly generated binary strings as well as for state-space exploration of a large collection of Petri net models from the 2016 edition of the Model Checking Contest (MCC'16). We experimentally document that with a modest overhead in running time, a truly significant space-reduction can be achieved. Lastly, we provide an efficient implementation of the PTrie data structure under the GPL version 3 license, so that the technology is made available for memory-intensive applications such as model-checking tools.