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198 Results Found

  • Article
  • Open Access
8 Citations
4,071 Views
26 Pages

31 March 2022

Solving mixed-integer nonlinear programs (MINLPs) is hard from both a theoretical and practical perspective. Decomposing the nonlinear and the integer part is promising from a computational point of view. In general, however, no bounds on the objecti...

(This article belongs to the Special Issue Simulation-Based Optimization: Methods and Applications in Engineering Design)
  • Article
  • Open Access
9 Citations
3,186 Views
10 Pages

25 December 2021

In this paper, we consider parallel-machine scheduling with release times and submodular penalties (P|rj,reject|Cmax+π(R)), in which each job can be accepted and processed on one of m identical parallel machines or rejected, but a penalty must pai...

  • Feature Paper
  • Article
  • Open Access
312 Views
16 Pages

28 May 2026

This paper presents a mathematical reinterpretation of virtual multi-vector synthesis defined over finite vector sets. Unlike conventional approaches that treat multi-vector synthesis as an algorithmic technique, the proposed framework characterizes...

(This article belongs to the Special Issue Advances in Combinatorial Optimization: Theory, Algorithms, and Applications)
  • Article
  • Open Access
1 Citations
452 Views
13 Pages

Existence of Multiple Solutions to a Transmission Problem

  • Yue Wang,
  • Yi Liu,
  • Chunliu Chen and
  • Zonghong Xiong

15 June 2026

The transmission problem has emerged as an important component in various application fields, including industry, agriculture, and commerce. Simultaneously, it is also one of the most common challenges encountered in daily activities such as eating,...

(This article belongs to the Section Mathematical Physics)
  • Article
  • Open Access
21 Citations
3,632 Views
20 Pages

25 February 2020

The graph coloring problem is an NP-hard combinatorial optimization problem and can be applied to various engineering applications. The chromatic number of a graph G is defined as the minimum number of colors required to color the vertex set V(G) so...

(This article belongs to the Special Issue Graph-Theoretic Problems and Their New Applications)
  • Article
  • Open Access
1 Citations
750 Views
22 Pages

27 April 2026

The current paper studies the global shell layer of the Finite Ring Continuum framework in the symmetry-complete regime realized here by framed finite fields, Fp(t;0,1,et), with p=4t+1. We show that a single symmetry-complete shell carries a unified...

(This article belongs to the Special Issue Symmetries in Algebraic Combinatorics and Their Applications)
  • Article
  • Open Access
1 Citations
2,085 Views
20 Pages

Calibrating the Discrete Boundary Conditions of a Dynamic Simulation: A Combinatorial Approximate Bayesian Computation Sequential Monte Carlo (ABC-SMC) Approach

  • Jah Shamas,
  • Tim Rogers,
  • Anton Krynkin,
  • Jevgenija Prisutova and ,
  • Paul Gardner,
  • Kirill V. Horoshenkov,
  • Samuel R. Shelley and
  • Paul Dickenson
  • + 3 authors+ 0 author

27 July 2024

This paper presents a novel adaptation of the conventional approximate Bayesian computation sequential Monte Carlo (ABC-SMC) sampling algorithm for parameter estimation in the presence of uncertainties, coined combinatorial ABC-SMC. Inference of this...

(This article belongs to the Topic Uncertainty Quantification in Design, Manufacturing and Maintenance of Complex Systems)
  • Article
  • Open Access
9 Citations
2,987 Views
19 Pages

19 February 2021

As an important application of wireless sensor networks (WSNs), deployment of mobile sensors to periodically monitor (sweep cover) a set of points of interest (PoIs) arises in various applications, such as environmental monitoring and data collection...

(This article belongs to the Section Physical Sensors)
  • Article
  • Open Access
14 Citations
3,588 Views
11 Pages

A Mixed-Integer Quadratic Formulation of the Phase-Balancing Problem in Residential Microgrids

  • Alejandro Garces,
  • Walter Gil-González,
  • Oscar Danilo Montoya,
  • Harold R. Chamorro and
  • Lazaro Alvarado-Barrios

24 February 2021

Phase balancing is a classical optimization problem in power distribution grids that involve phase swapping of the loads and generators to reduce power loss. The problem is a non-linear integer and, hence, it is usually solved using heuristic algorit...

(This article belongs to the Special Issue Smart Energy Systems and Technologies)
  • Article
  • Open Access
3 Citations
3,871 Views
18 Pages

NORA: An Approach for Transforming Network Management Policies into Automated Planning Problems

  • Angela Rodriguez-Vivas,
  • Oscar Mauricio Caicedo,
  • Armando Ordoñez,
  • Jéferson Campos Nobre and
  • Lisandro Zambenedetti Granville

4 March 2021

Realizing autonomic management control loops is pivotal for achieving self-driving networks. Some studies have recently evidence the feasibility of using Automated Planning (AP) to carry out these loops. However, in practice, the use of AP is complic...

(This article belongs to the Section Intelligent Sensors)
  • Article
  • Open Access
1 Citations
3,061 Views
15 Pages

24 August 2021

The graph bandwidth problem, where one looks for a labeling of graph vertices that gives the minimum difference between the labels over all edges, is a classical NP-hard problem that has drawn a lot of attention in recent decades. In this paper, we f...

(This article belongs to the Section E: Applied Mathematics)
  • Article
  • Open Access
15 Citations
2,960 Views
11 Pages

22 January 2019

In this paper, we perform a further investigation for the Fubini polynomials. By making use of the generating function methods and Padé approximation techniques, we establish some new identities for the two variable Fubini polynomials. Some sp...

(This article belongs to the Special Issue Special Polynomials)
  • Article
  • Open Access
16 Citations
12,565 Views
32 Pages

Personalized Tour Itinerary Recommendation Algorithm Based on Tourist Comprehensive Satisfaction

  • Dingming Liu,
  • Lizheng Wang,
  • Yanling Zhong,
  • Yi Dong and
  • Jinling Kong

14 June 2024

Personalized travel itinerary recommendation algorithms are the focus of research in smart tourism and tourism GIS. Aiming to address issues present in travel itinerary recommendations for the increasingly popular “self-drive tour” mode,...

  • Article
  • Open Access
288 Views
31 Pages

15 October 2026

The free-energy machine (FEM) relaxes discrete combinatorial optimization by minimizing expected energy plus a temperature-dependent negative-entropy penalty over product distributions. This contribution investigates the computational and mathematica...

(This article belongs to the Section Information Theory, Probability and Statistics)
  • Article
  • Open Access
1 Citations
4,025 Views
19 Pages

24 August 2021

Many combinatorial optimization problems are often considered intractable to solve exactly or by approximation. An example of such a problem is maximum clique, which—under standard assumptions in complexity theory—cannot be solved in sub-exponential...

(This article belongs to the Special Issue Metaheuristics)
  • Article
  • Open Access
4 Citations
6,472 Views
20 Pages

An Attention-Based Method for the Minimum Vertex Cover Problem on Complex Networks

  • Giorgio Lazzarinetti,
  • Riccardo Dondi,
  • Sara Manzoni and
  • Italo Zoppis

6 February 2024

Solving combinatorial problems on complex networks represents a primary issue which, on a large scale, requires the use of heuristics and approximate algorithms. Recently, neural methods have been proposed in this context to find feasible solutions f...

(This article belongs to the Special Issue Algorithms for Network Analysis: Theory and Practice)
  • Article
  • Open Access
2 Citations
3,028 Views
22 Pages

27 April 2023

The Stirling numbers for graphs provide a combinatorial interpretation of the number of cycle covers in a given graph. The problem of generating all cycle covers or enumerating these quantities on general graphs is computationally intractable, but re...

(This article belongs to the Topic Complex Systems and Network Science)
  • Article
  • Open Access
1 Citations
2,624 Views
16 Pages

In complex testing scenarios of large-scale information systems, communication networks, and the Internet of Things, exhaustive testing is always prohibitively expensive and time-consuming. T-way combinatorial testing has emerged as a cost-effective...

(This article belongs to the Section Communications and Networking)
  • Article
  • Open Access
1 Citations
1,065 Views
30 Pages

7 December 2025

The Learning with Errors (LWE) problem, particularly its efficient ternary variant where secrets and errors are small, is a fundamental building block for numerous post-quantum cryptographic schemes. Combinatorial attacks provide a potent approach to...

  • Article
  • Open Access
9 Citations
6,428 Views
15 Pages

Potential Synergistic Antibiotic Combinations against Fluoroquinolone-Resistant Pseudomonas aeruginosa

  • Ashish Kothari,
  • Neeraj Jain,
  • Shyam Kishor Kumar,
  • Ankur Kumar and ,
  • Karanvir Kaushal,
  • Satinder Kaur,
  • Atul Pandey,
  • Amit Gaurav and
  • Balram Ji Omar
  • + 4 authors+ 0 author

18 February 2022

The rise in multiple-drug-resistant (MDR) phenotypes in Gram-negative pathogens is a major public health crisis. Pseudomonas aeruginosa is one of the leading causes of nosocomial infections in clinics. Treatment options for P. aeruginosa have become...

(This article belongs to the Section Pharmacology)
  • Article
  • Open Access
1,246 Views
19 Pages

9 January 2026

Grammar induction runs into a serious problem due to the exponential growth of the number of possible derivation trees as sentence length increases, which makes unsupervised parsing both computationally demanding and highly indeterminate. This paper...

(This article belongs to the Special Issue Advances in Mathematical Cryptography and Information Security with Applications)
  • Review
  • Open Access
1 Citations
1,658 Views
38 Pages

19 June 2026

Combinatorial optimization is a key component in critical decision problems such as routing, scheduling, network design, and graph optimization. Although combinatorial optimization methods, including exact algorithms, approximation methods, constrain...

(This article belongs to the Section E1: Mathematics and Computer Science)
  • Article
  • Open Access
7 Citations
4,653 Views
22 Pages

29 October 2023

Quantum computing is a promising technology that may provide breakthrough solutions to today’s difficult problems such as breaking encryption and solving large-scale combinatorial optimization problems. An algorithm referred to as Quantum Appro...

  • Article
  • Open Access
10 Citations
4,029 Views
11 Pages

10 October 2020

Score-based algorithms that learn Bayesian Network (BN) structures provide solutions ranging from different levels of approximate learning to exact learning. Approximate solutions exist because exact learning is generally not applicable to networks o...

(This article belongs to the Special Issue Statistical Inference from High Dimensional Data)
  • Article
  • Open Access
4 Citations
9,430 Views
17 Pages

21 January 2013

The dominating set problem is a core NP-hard problem in combinatorial optimization and graph theory, and has many important applications. Baker [JACM 41,1994] introduces a k-outer planar graph decomposition-based framework for designing polynomial ti...

(This article belongs to the Special Issue Graph Algorithms)
  • Article
  • Open Access
7 Citations
3,065 Views
10 Pages

Genetic Algorithm Based Solution for TSP on a Sphere

  • Aybars Uğur,
  • Serdar Korukoğlu,
  • Ali Çalıskan,
  • Muhammed Cinsdikici and
  • Ali Alp

1 December 2009

The Traveling Salesman Problem (TSP) is one of the extensively studied combinatorial optimization problems. Various exact or approximation algorithms are devised for solving Euclidean TSP that determine the shortest route through a given set of point...

  • Article
  • Open Access
389 Views
19 Pages

5 July 2026

Notable discrete probability laws appear as posterior distributions in the estimation of the common mean with heterogeneous variances. These probabilities, which are defined by an arbitrary set of distinct real numbers, also arise in seemingly unrela...

(This article belongs to the Section D1: Probability and Statistics)
  • Article
  • Open Access
20 Citations
4,265 Views
21 Pages

Globally Optimizing QAOA Circuit Depth for Constrained Optimization Problems

  • Rebekah Herrman,
  • Lorna Treffert,
  • James Ostrowski,
  • Phillip C. Lotshaw and ,
  • Travis S. Humble and
  • George Siopsis
  • + 1 author+ 0 author

11 October 2021

We develop a global variable substitution method that reduces n-variable monomials in combinatorial optimization problems to equivalent instances with monomials in fewer variables. We apply this technique to 3-SAT and analyze the optimal quantum unit...

  • Article
  • Open Access
2,328 Views
28 Pages

10 March 2026

We introduce cumulative tic-tac-toe, a novel variant of the classic 3×3 tic-tac-toe game in which play continues until the board is completely filled. Each player’s final score is determined by the total number of three-in-a-row sequences...

  • Article
  • Open Access
2 Citations
2,949 Views
14 Pages

Combinatorial Analysis of miRNAs and tRNA Fragments as Potential Biomarkers for Cancer Patients in Liquid Biopsies

  • Ilias Glogovitis,
  • Silvia D’Ambrosi,
  • Mafalda Antunes-Ferreira,
  • Monica Chiogna and ,
  • Galina Yahubyan,
  • Vesselin Baev,
  • Thomas Wurdinger and
  • Danijela Koppers-Lalic
  • + 3 authors+ 0 author

14 February 2025

Background: Liquid biopsy has gained significant attention as a non-invasive method for cancer detection and monitoring. IsomiRs and tRNA-derived fragments (tRFs) are small non-coding RNAs that arise from non-canonical microRNA (miRNAs) processing an...

(This article belongs to the Special Issue Extracellular Vesicles and ncRNA)
  • Article
  • Open Access
2 Citations
1,939 Views
25 Pages

8 September 2025

This paper addresses the cooperative task assignment problem for heterogeneous unmanned aerial vehicles with time windows considering uncertain fuel consumption. In the scenario where probabilistic fuel consumption exists and its distribution needs t...

  • Article
  • Open Access
6 Citations
2,973 Views
16 Pages

Single Machine Vector Scheduling with General Penalties

  • Xiaofei Liu,
  • Weidong Li and
  • Yaoyu Zhu

17 August 2021

In this paper, we study the single machine vector scheduling problem (SMVS) with general penalties, in which each job is characterized by a d-dimensional vector and can be accepted and processed on the machine or rejected. The objective is to minimiz...

  • Article
  • Open Access
482 Views
40 Pages

1 August 2026

Using an integral method based on indefinite integrals J±, we will give new numerical methods for tackling a variety of initial value problems. Within the scope of this study, a number of example cases of stiff and non-stiff initial value prob...

(This article belongs to the Special Issue Applications in Functional Analysis)
  • Article
  • Open Access
1 Citations
2,650 Views
13 Pages

Set Packing Optimization by Evolutionary Algorithms with Theoretical Guarantees

  • Youzhen Jin,
  • Xiaoyun Xia,
  • Zijia Wang,
  • Xue Peng and ,
  • Jun Zhang and
  • Weizhi Liao
  • + 1 author+ 0 author

27 September 2024

The set packing problem is a core NP-complete combinatorial optimization problem which aims to find the maximum collection of disjoint sets from a given collection of sets, S, over a ground set, U. Evolutionary algorithms (EAs) have been widely used...

(This article belongs to the Special Issue Bio-Inspired Optimization Algorithms and Designs for Engineering Applications: 2nd Edition)
  • Article
  • Open Access
495 Views
16 Pages

Combinatorial Evaluation of Corrosion Resistance of Ru-Based Alloys in Supercritical Acidic Fluids

  • Rikito Murakami,
  • Murugesan Naveenkarthik,
  • Kei Kamada and
  • Akira Yoshikawa

30 April 2026

Ruthenium (Ru) and its alloys exhibit high corrosion resistance in acidic environments; however, their corrosion behavior in supercritical acidic fluids remains unclear. In this study, the corrosion resistance of Ru–Mo–W and Ru–Mo&n...

(This article belongs to the Special Issue Metallic Materials Coatings and Their Wear, Corrosion, and Tribological Performances)
  • Feature Paper
  • Article
  • Open Access
307 Views
15 Pages

10 September 2026

Motivated by recent interest in predictive inference under distribution shifts, we study the problem of approximating finite weighted exchangeable sequences by a mixture of finite sequences with independent terms. Two different approaches are develop...

(This article belongs to the Section D1: Probability and Statistics)
  • Article
  • Open Access
15 Citations
7,510 Views
19 Pages

13 August 2019

The interest in memristors has risen due to their possible application both as memory units and as computational devices in combination with CMOS. This is in part due to their nonlinear dynamics, and a strong dependence on the circuit topology. We pr...

(This article belongs to the Collection Advances in Applied Statistical Mechanics)
  • Article
  • Open Access
35 Citations
4,985 Views
11 Pages

Quantum Approximation for Wireless Scheduling

  • Jaeho Choi,
  • Seunghyeok Oh and
  • Joongheon Kim

13 October 2020

This paper proposes an application algorithm based on a quantum approximate optimization algorithm (QAOA) for wireless scheduling problems. QAOA is one of the promising hybrid quantum-classical algorithms to solve combinatorial optimization problems...

(This article belongs to the Section Quantum Science and Technology)
  • Article
  • Open Access
16 Citations
3,922 Views
18 Pages

26 January 2023

This research presents an efficient energy management system (EMS) for battery energy storage systems (BESS) connected to monopolar DC distribution networks which considers a high penetration of photovoltaic generation. The optimization model that ex...

(This article belongs to the Collection Advances in Battery Energy Storage and Applications)
  • Article
  • Open Access
14 Citations
9,366 Views
21 Pages

Solving Generalized Polyomino Puzzles Using the Ising Model

  • Kazuki Takabatake,
  • Keisuke Yanagisawa and
  • Yutaka Akiyama

28 February 2022

In the polyomino puzzle, the aim is to fill a finite space using several polyomino pieces with no overlaps or blanks. Because it is an NP-complete combinatorial optimization problem, various probabilistic and approximated approaches have been applied...

(This article belongs to the Special Issue Ising Model: Recent Developments and Exotic Applications)
  • Feature Paper
  • Article
  • Open Access
2,757 Views
15 Pages

This paper presents a theoretical framework for constructing generalized weighted Voronoi diagrams (GWVDs) of weighted points and straight-line segments (“sites”) in the Euclidean plane, based on lower envelopes constructed in three-dimen...

  • Review
  • Open Access
13 Citations
9,464 Views
37 Pages

3 February 2009

In this work we focus on the energy efficiency challenge in wireless sensor networks, from both an on-line perspective (related to routing), as well as a network design perspective (related to tracking). We investigate a few representative, important...

(This article belongs to the Special Issue Sensor Algorithms)
  • Article
  • Open Access
2 Citations
1,642 Views
28 Pages

DLMinTC+: A Deep Learning Based Algorithm for Minimum Timeline Cover on Temporal Graphs

  • Giorgio Lazzarinetti,
  • Riccardo Dondi,
  • Sara Manzoni and
  • Italo Zoppis

17 February 2025

Combinatorial optimization on temporal graphs is critical for summarizing dynamic networks in various fields, including transportation, social networks, and biology. Among these problems, the Minimum Timeline Cover (MinTCover) problem, aimed at ident...

(This article belongs to the Special Issue Engineering Applications of Optimization Algorithms: Heuristics, Metaheuristics, and Hyperheuristics)
  • Article
  • Open Access
120 Views
15 Pages

Using Randomized Heuristics and Regression to Estimate the Close Enough TSP Optimal Tour Length

  • Hugo Mainguy,
  • Bruce Golden,
  • Luca Bertazzi and
  • Debdatta Sinha Roy

23 October 2026

In the Close Enough Traveling Salesman Problem (CETSP), one must find the shortest tour that travels through every given customer-centered neighborhood, which is usually a disk centered on each customer or target. This problem has applications in var...

(This article belongs to the Special Issue Advanced Algorithms and Intelligent Computational Methods)
  • Article
  • Open Access
50 Citations
8,529 Views
23 Pages

Constraint Preserving Mixers for the Quantum Approximate Optimization Algorithm

  • Franz Georg Fuchs,
  • Kjetil Olsen Lye,
  • Halvor Møll Nilsen,
  • Alexander Johannes Stasik and
  • Giorgio Sartor

10 June 2022

The quantum approximate optimization algorithm/quantum alternating operator ansatz (QAOA) is a heuristic to find approximate solutions of combinatorial optimization problems. Most of the literature is limited to quadratic problems without constraints...

(This article belongs to the Collection Feature Paper in Algorithms and Complexity Theory)
  • Article
  • Open Access
1 Citations
771 Views
13 Pages

On the Use of the Quantum Alternating Operator Ansatz in Quantum-Informed Recursive Optimization: A Case Study on the Minimum Vertex Cover

  • Pablo Ramos-Ruiz,
  • Antonio Miguel Fuentes-Jiménez,
  • José E. Ramos-Ruiz and
  • Inmaculada Jiménez-Manchado

In recent years, several quantum algorithms have been proposed for addressing combinatorial optimization problems. Among them, the Quantum Approximate Optimization Algorithm (QAOA) has become a widely used approach. However, reported limitations of Q...

(This article belongs to the Special Issue Optimization and Machine Learning)
  • Proceeding Paper
  • Open Access
988 Views
14 Pages

The quantum approximate optimization algorithm (QAOA) is an efficient method for solving combinatorial optimization problems in quantum computing. These problems involve finding the best solution from a finite set of possibilities. At its core, the Q...

(This article belongs to the Proceedings of The 7th Eurasia Conference on IoT, Communication and Engineering 2025 (ECICE 2025))
  • Article
  • Open Access
17 Citations
3,689 Views
11 Pages

16 January 2020

In this paper, we consider the single machine scheduling problem with release dates and nonmonotone submodular rejection penalty. We are given a single machine and multiple jobs with probably different release dates and processing times. For each job...

  • Article
  • Open Access
2,134 Views
20 Pages

A novel algorithm was proposed for solving the max-cut problem, which seeks to identify the cut with the maximum weight in a given graph. Our technique is based on the bundle approach, applied to a newly formulated semidefinite relaxation. This resea...

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