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Fair allocation of indivisible items with conflict graphsChiarelli, Nina ...V članku obravnavamo pravično dodelitev nedeljivih dobrin več agentom in temu klasičnemu problemu dodamo grafovsko perspektivo. Uvedemo namreč relacijo nekompatibilnosti med pari elementov, opisanih ... s konfliktnim grafom. Vsaka podmnožica elementov, dodeljena enemu agentu, mora tvoriti neodvisno množico v konfliktnem grafu. Taka dodelitev elementov agentom ustreza nekemu delnemu barvanju konfliktnega grafa. Vsak agent ima svojo oceno vrednosti za vsako izmed dobrin. Z namenom pravične dodelitve je naš cilj maksimizacija najnižje skupne vrednosti dobrin, dodeljenih kateremu koli od agentov. Ob ustreznih parametrih se omenjeni optimizacijski problem prevede na druge znane optimizacijske probleme, npr. na problem Particija in Neodvisna množica. V prispevku izpeljemo rezultate o računski zahtevnosti in algoritmične rezultate glede na lastnosti konfliktnega grafa. Pokažemo, da je problem krepko NP-težek za dvodelne grafe in njihove povezavne grafe, ter rešljiv v psevdopolinomskem času za razrede tetivnih grafov, neprimerljivostnih grafov, bikonveksnih dvodelnih grafov in grafov omejene drevesne širine. Vsakega od psevdopolinomskih algoritmov je mogoče spremeniti tudi v popolnoma polinomsko aproksimacijsko shemo (FPTAS).Source: Algorithmica. - ISSN 0178-4617 (Vol. 85, iss. 5, May 2023, str. 1459-1489)Type of material - article, component part ; adult, seriousPublish date - 2023Language - englishCOBISS.SI-ID - 134381827
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Chiarelli, Nina | 35452 |
Krnc, Matjaž, 1987- | 34562 |
Milanič, Martin, 1980- | 30211 |
Pferschy, Ulrich | |
Pivač, Nevena | 50673 |
Schauer, Joachim |
Source: Personal bibliographies
and: SICRIS
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