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1.
A new variant of the p-hub location problem with a ring backbone network for content placement in VoD services
Soumen Atta, Goutam Sen, 2021, izvirni znanstveni članek

Opis: In this article, the single allocation p-hub location problem (SApHLP) with a ring backbone network for content placement in VoD services is proposed. In VoD services, a large volume of digital data is kept as data segments in spatially distributed hubs. In SApHLP, each user is restricted to be allocated only to a single hub, and here hubs form a ring backbone network. SApHLP jointly addresses (i) the locations of hubs, (ii) the placement of segments to hubs, (iii) the allocation of users to hubs as per their demands, and (iv) the optimal paths to route the demands from users to hubs. We have introduced network flow-based 3-subscripted and path-based 4-subscripted MILP formulations of SApHLP. This article presents a novel discrete particle swarm optimization (PSO)-based approach where factoradic numbers are used to encode solution. It also incorporates three problem-specific solution refinement methods for faster convergence. In this article, SApHLP instances are generated from a real-world database of video files obtained from a movie recommender system. The benchmark solutions are generated using IBM’s CPLEX optimizer with default settings and Benders decomposition strategy. The performance of the proposed PSO is compared with the benchmark results produced by CPLEX.
Ključne besede: Single allocation p-hub location problem, Ring backbone network, VoD services, Particle Swarm Optimization (PSO), Factoradics, CPLEX
Objavljeno v RUNG: 17.04.2023; Ogledov: 727; Prenosov: 0
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2.
On a class of d-division hypernear-rings
Sanja Jančić-Rašović, Irina Elena Cristea, 2018, objavljeni povzetek znanstvenega prispevka na konferenci

Ključne besede: hypernear-ring, distributivity, d-division
Objavljeno v RUNG: 23.06.2020; Ogledov: 2315; Prenosov: 0
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3.
Some new classes of hypernear-rings
Sanja Jančić-Rašović, Irina Elena Cristea, Jelena Dakić, 2020, objavljeni povzetek znanstvenega prispevka na konferenci

Ključne besede: hypernear-ring, defect of distributivity
Objavljeno v RUNG: 23.06.2020; Ogledov: 2543; Prenosov: 0
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4.
Weak embeddable hypernear-rings
Jelena Dakić, Sanja Jančić-Rašović, Irina Elena Cristea, 2019, izvirni znanstveni članek

Ključne besede: hypernear-ring, multitransformation, embedding
Objavljeno v RUNG: 07.08.2019; Ogledov: 3174; Prenosov: 94
.pdf Celotno besedilo (248,69 KB)

5.
Division hypernear-rings
Sanja Jančić-Rašović, Irina Elena Cristea, 2018, izvirni znanstveni članek

Ključne besede: hypernear-ring, defect of distributivity, d.g. hypernear-ring, division hypernear-ring
Objavljeno v RUNG: 02.11.2018; Ogledov: 3073; Prenosov: 0
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6.
Hypernear-Ring with a Defect of Distributivity
Sanja Jančić-Rašović, Irina Elena Cristea, 2018, izvirni znanstveni članek

Ključne besede: hypernear-ring, defect of distributivity, d.g. hypernear-ring
Objavljeno v RUNG: 16.07.2018; Ogledov: 3345; Prenosov: 0
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7.
A note on near-rings and hypernear-rings with a defect of distributivity
Sanja Jančić-Rašović, Irina Elena Cristea, 2018, objavljeni znanstveni prispevek na konferenci

Ključne besede: near-ring, hypernear-ring, defect of distributivity
Objavljeno v RUNG: 11.07.2018; Ogledov: 3048; Prenosov: 0
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