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Improved algorithms for two-agent scheduling on an unbounded serial-batching machine

期刊: DISCRETE OPTIMIZATION, 2021; 41 ()

The paper considers two-agent simultaneous optimization problems on an unbounded serial-batching machine, in which the objective function of agent A i......

On optimal randomized group testing with one defective item and a constrained number of positive responses

期刊: DISCRETE OPTIMIZATION, 2021; 39 ()

Consider the group testing problem with an input set of size n and the number of defective items being d = 1, that allows at most y positive responses......

On the signless Laplacian spectral radius of weighted digraphs

期刊: DISCRETE OPTIMIZATION, 2019; 32 ()

Let G = (V(G), E(G)) be a weighted digraph with vertex set V(G) = {v(1), v(2), ..., v(n)} and arc set E(G), where the arc weights are nonzero nonnegat......

JIF:0.81

Approximating the multiple-depot multiple-terminal Hamiltonian path problem

期刊: DISCRETE OPTIMIZATION, 2019; 34 ()

In this paper, we study a multiple-terminal extension of the classic Hamiltonian path problem where m salesmen are initially located at different depo......

JIF:0.81

Single-machine scheduling with positional due indices and positional deadlines

期刊: DISCRETE OPTIMIZATION, 2019; 34 ()

In this paper, we study single-machine scheduling problems with due dates, positional due indices, deadlines and positional deadlines. The scheduling ......

JIF:0.81

The quadratic minimum spanning tree problem and its variations

期刊: DISCRETE OPTIMIZATION, 2018; 27 ()

The quadratic minimum spanning tree problem and its variations such as the quadratic bottleneck spanning tree problem, the minimum spanning tree probl......

JIF:0.81

On the NP-hardness of scheduling with time restrictions

期刊: DISCRETE OPTIMIZATION, 2018; 28 ()

In a recent paper, Braun et al. (2014) have addressed a single-processor scheduling problem with time restrictions. Given a fixed integer B >= 2, t......

JIF:0.81

New upper bounds for online strip packing

期刊: DISCRETE OPTIMIZATION, 2017; 23 ( )

In this paper, we consider the online strip packing problem, in which a list of online rectangles has to be packed without overlap or rotation into on......

JIF:0.48

Bi-criteria Pareto-scheduling on a single machine with due indices and precedence constraints

期刊: DISCRETE OPTIMIZATION, 2017; 25 ( )

We consider the Pareto-scheduling with bi-criteria on a single machine in which each task has a positional due index. Two bi-criteria problems are con......

JIF:0.48

A note on independent vertex edge domination in graphs

期刊: DISCRETE OPTIMIZATION, 2017; 25 ( )

The independent vertex edge domination number and the upper non-enclaving number of a graph G are denoted by i(ve)(G) and Psi(G), respectively. Boutri......

JIF:0.48

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