Copositive and semidefinite relaxations of the quadratic assignment problem

Povh, Janez; Rendl, Franz

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Naslov:	Copositive and semidefinite relaxations of the quadratic assignment problem
Avtorji:	ID Povh, Janez (Avtor) ID Rendl, Franz (Avtor)
Datoteke:	http://dx.doi.org/10.1016/j.disopt.2009.01.002
Jezik:	Angleški jezik
Vrsta gradiva:	Delo ni kategorizirano
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	FL - Fakulteta za logistiko
Opis:	Semidefinite relaxations of the quadratic assignment problem (QAP) have recently turned out to provide good approximations to the optimal value of QAP. We take a systematic look at various conic relaxations of QAP. We first show that QAP can equivalently be formulated as a linear program over the cone of completely positive matrices. Since it is hard to optimize over this cone, we also look at tractable approximations and compare with several relaxations from the literature. We show that several of the well-studied models are in fact equivalent. It is still a challenging task to solve the strongest of these models to reasonable accuracy on instances of moderate size.
Ključne besede:	matematično programiranje, problem kvadratičnega prirejanja, kopozitivno programiranje, semidefinitna poenostavitev, quadratic assignment problem, copositive programming, semidefinite relaxations, lift-and-project relaxations
Leto izida:	2009
Št. strani:	str. 231-241
Številčenje:	Vol. 6, iss. 3
PID:	20.500.12556/DKUM-51786
UDK:	519.85
COBISS.SI-ID:	15143001
ISSN pri članku:	1572-5286
NUK URN:	URN:SI:UM:DK:FCHQ0ZVW
Datum objave v DKUM:	10.07.2015
Število ogledov:	1631
Število prenosov:	103
Metapodatki:
Področja:	Ostalo
:	POVH, Janez in RENDL, Franz, 2009, Copositive and semidefinite relaxations of the quadratic assignment problem. Discrete optimization [na spletu]. 2009. Vol. 6, no. 3, p. 231–241. [Dostopano 6 april 2025]. Pridobljeno s: http://dx.doi.org/10.1016/j.disopt.2009.01.002 Kopiraj citat