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450 Results Found

  • Article
  • Open Access
34 Citations
6,762 Views
21 Pages

31 January 2019

“Land finance” refers to the key fiscal strategy in which local governments in China generate revenue through land grant premiums and land tax revenues. A burgeoning body of literature has focused on the driving factors of China’s l...

  • Article
  • Open Access
5 Citations
2,302 Views
20 Pages

Soft manipulators have desirable environmental compatibility because of their pliability. However, this pliability also brings challenges to modeling and control when considering contact or collision with the environment. In previous work, we establi...

  • Article
  • Open Access
10 Citations
7,984 Views
16 Pages

The Non-Smooth and Bi-Objective Team Orienteering Problem with Soft Constraints

  • Alejandro Estrada-Moreno,
  • Albert Ferrer,
  • Angel A. Juan,
  • Javier Panadero and
  • Adil Bagirov

1 September 2020

In the classical team orienteering problem (TOP), a fixed fleet of vehicles is employed, each of them with a limited driving range. The manager has to decide about the subset of customers to visit, as well as the visiting order (routes). Each custome...

  • Article
  • Open Access
4 Citations
6,818 Views
19 Pages

Soft Budget Constraints in French Football through Public Financing of Stadiums

  • Jérémy Moulard,
  • Markus Lang and
  • Nadine Dermit-Richard

22 December 2022

Several football stadiums were built or renovated in France for hosting the 2016 UEFA European Football Championship. This study examines to what extent financial support by local governments for stadium construction or renovation induces soft budget...

  • Article
  • Open Access
9 Citations
2,829 Views
30 Pages

Multiplexing Gains under Mixed-Delay Constraints on Wyner’s Soft-Handoff Model

  • Homa Nikbakht,
  • Michèle Angela Wigger and
  • Shlomo Shamai (Shitz)

5 February 2020

This paper analyzes the multiplexing gains (MG) achievable over Wyner’s soft-handoff model under mixed-delay constraints, that is, when delay-sensitive and delay-tolerant data are simultaneously transmitted over the network. In the considered m...

  • Article
  • Open Access
10 Citations
6,169 Views
21 Pages

26 September 2019

Multi-agent path planning (MAPP) is increasingly being used to address resource allocation problems in highly dynamic, distributed environments that involve autonomous agents. Example domains include surveillance automation, traffic control and other...

  • Article
  • Open Access
5 Citations
3,692 Views
23 Pages

13 April 2023

It is a great challenge to solve nonhomogeneous elliptic interface problems, because the interface divides the computational domain into two disjoint parts, and the solution may change dramatically across the interface. A soft constraint physics-info...

  • Article
  • Open Access
2 Citations
2,710 Views
19 Pages

Ground Moving Target Tracking Filter Considering Terrain and Kinematics

  • Do-Un Kim,
  • Woo-Cheol Lee,
  • Han-Lim Choi,
  • Joontae Park,
  • Jihoon An and
  • Wonjun Lee

18 October 2021

This paper addresses ground target tracking (GTT) for airborne radar. Digital terrain elevation data (DTED) are widely used for GTT as prior information under the premise that ground targets are constrained on terrain. Existing works fuse DTED to a t...

  • Article
  • Open Access
911 Views
14 Pages

17 July 2025

Bayesian networks (BNs) are effective and universal tools for addressing uncertain knowledge. BN learning includes structure learning and parameter learning, and structure learning is its core. The topology of a BN can be determined by expert domain...

  • Article
  • Open Access
1 Citations
3,648 Views
15 Pages

8 March 2023

A significant challenge in robust model predictive control (MPC) is the online computational complexity. This paper proposes a learning-based approach to accelerate online calculations by combining recent advances in deep learning with robust MPC. Th...

  • Article
  • Open Access
5 Citations
3,864 Views
18 Pages

Soft Semi-Supervised Deep Learning-Based Clustering

  • Mona Suliman AlZuhair,
  • Mohamed Maher Ben Ismail and
  • Ouiem Bchir

27 August 2023

Semi-supervised clustering typically relies on both labeled and unlabeled data to guide the learning process towards the optimal data partition and to prevent falling into local minima. However, researchers’ efforts made to improve existing sem...

  • Article
  • Open Access
1 Citations
1,387 Views
21 Pages

Novel Dual-Constraint-Based Semi-Supervised Deep Clustering Approach

  • Mona Suliman AlZuhair,
  • Mohamed Maher Ben Ismail and
  • Ouiem Bchir

21 April 2025

Semi-supervised clustering can be viewed as a clustering paradigm that exploits both labeled and unlabeled data to steer learning accurate data clusters and avoid local minimum solutions. Nonetheless, the attempts to refine existing semi-supervised c...

  • Article
  • Open Access
27 Citations
1,924 Views
7 Pages

Constraints-controlled metastable dynamics of exercise-induced psychobiological adaptation

  • Robert Hristovski,
  • Eurelija Venskaitytė,
  • Alfonsas Vainoras,
  • Natālia Balagué and
  • Pablo Vazquez

13 July 2010

A fundamental question in the theory of psychobiological adaptation and specifically of sports training is the problem of how adaptation to sports performance demands occurs as a consequence of systematic exercise. In this position paper, we review s...

  • Article
  • Open Access
28 Citations
12,783 Views
17 Pages

Despite the globalisation of European soccer, each professional league exhibits specificities. French Ligue 1 sometimes contends with the trading-off of financial performance against sporting performance of its teams in European soccer competitions,...

  • Article
  • Open Access
15 Citations
6,917 Views
14 Pages

On the Use of Biased-Randomized Algorithms for Solving Non-Smooth Optimization Problems

  • Angel Alejandro Juan,
  • Canan Gunes Corlu,
  • Rafael David Tordecilla,
  • Rocio de la Torre and
  • Albert Ferrer

25 December 2019

Soft constraints are quite common in real-life applications. For example, in freight transportation, the fleet size can be enlarged by outsourcing part of the distribution service and some deliveries to customers can be postponed as well; in inventor...

  • Article
  • Open Access
52 Citations
14,455 Views
18 Pages

19 April 2013

Course timetabling is a combinatorial optimization problem and has been confirmed to be an NP-complete problem. Course timetabling problems are different for different universities. The studied university course timetabling problem involves hard cons...

  • Article
  • Open Access
4 Citations
2,165 Views
18 Pages

17 August 2022

The alignment stability and controllability deteriorate considerably when the air spring vibration isolation system for the high power density main engine (HPDME-ASVIS) is in a special running state of high power and high output torque. The coupling...

  • Article
  • Open Access
6 Citations
1,608 Views
20 Pages

2 November 2023

Haze seriously affects the visual quality of road inspection images and contaminates the discrimination of key road objects, which thus hinders the execution of road inspection work. The basic assumptions of the classical dark-channel prior are not s...

  • Article
  • Open Access
265 Views
20 Pages

A Simple Hybrid Approach for Solving Set Covering Problems with Conflict Constraints

  • Myung Soon Song,
  • Peter Cadiz,
  • Yun Lu,
  • Elliot Swan and
  • Francis J. Vasko

20 January 2026

The classic set covering problem (SCP) is an NP-hard binary integer optimization problem with diverse business and industrial applications. Its primary goal is to consolidate resources by selecting a minimal cost subset of columns in a matrix that co...

  • Article
  • Open Access
673 Views
19 Pages

25 October 2025

With the large-scale integration of single-phase distributed photovoltaic systems into distribution grids, issues such as mismatched generation and load, overvoltage, and three-phase imbalance may arise in the distribution network. A multi-objective...

  • Article
  • Open Access
26 Citations
6,934 Views
14 Pages

Design of Soft Grippers with Modular Actuated Embedded Constraints

  • Gabriele Maria Achilli,
  • Maria Cristina Valigi,
  • Gionata Salvietti and
  • Monica Malvezzi

6 December 2020

Underactuated, modular and compliant hands and grippers are interesting solutions in grasping and manipulation tasks due to their robustness, versatility, and adaptability to uncertainties. However, this type of robotic hand does not usually have eno...

  • Article
  • Open Access
632 Views
38 Pages

27 October 2025

The integration of Soft Open Points (SOPs) into distribution networks has been an essential method for enhancing operational flexibility and efficiency. But simultaneous optimization of network reconfiguration and SOP scheduling constitutes a difficu...

  • Article
  • Open Access
5 Citations
4,437 Views
18 Pages

The current study investigated the geometry optimization of a hybrid-driven (based on the combination of air pressure and tendon tension) soft robot for use in robot-assisted intra-bronchial intervention. Soft robots, made from compliant materials, h...

  • Article
  • Open Access
3 Citations
2,231 Views
19 Pages

6 January 2025

Artificial intelligence plays an indispensable role in improving productivity and promoting social development, and causal discovery is one of the extremely important research directions in this field. Acyclic directed graphs (DAGs) are the most comm...

  • Article
  • Open Access
36 Citations
10,963 Views
20 Pages

3 March 2023

Therapeutic ultrasound waves are the main instruments used in many noninvasive clinical procedures. They are continuously transforming medical treatments through mechanical and thermal effects. To allow for effective and safe delivery of ultrasound w...

  • Article
  • Open Access
3 Citations
1,809 Views
23 Pages

Motion Coordination of Multiple Autonomous Mobile Robots under Hard and Soft Constraints

  • Spyridon Anogiatis,
  • Panagiotis S. Trakas and
  • Charalampos P. Bechlioulis

This paper presents a distributed approach to the motion control problem for a platoon of unicycle robots moving through an unknown environment filled with static obstacles under multiple hard and soft operational constraints. Each robot has an onboa...

  • Article
  • Open Access
5 Citations
2,831 Views
23 Pages

Optimizing Inventory and Pricing for Substitute Products with Soft Supply Constraints

  • Armando Meza,
  • Paolo Latorre,
  • Milena Bonacic,
  • Héctor López-Ospina and
  • Juan Pérez

4 June 2024

This paper presents a profit optimization model for substitute products in a competitive, time-sensitive market with scarcity and shifting user preferences. The model maximizes profit, considering production costs and inventory maintenance. It uses a...

  • Article
  • Open Access
1 Citations
1,089 Views
25 Pages

A Bayesian network (BN) is an uncertainty processing model that simulates human cognitive thinking on the basis of probability theory and graph theory. Its network topology is a directed acyclic graph (DAG) that can be manually constructed through ex...

  • Article
  • Open Access
5 Citations
3,717 Views
14 Pages

Multi-View Instance Matching with Learned Geometric Soft-Constraints

  • Ahmed Samy Nassar,
  • Sébastien Lefèvre and
  • Jan Dirk Wegner

We present a new approach for matching urban object instances across multiple ground-level images for the ultimate goal of city-scale mapping of objects with high positioning accuracy. What makes this task challenging is the strong change in view-poi...

  • Article
  • Open Access
1 Citations
1,078 Views
25 Pages

14 November 2025

Autonomous navigation of unmanned aerial vehicles (UAVs) in unknown complex environments requires safe, fast and efficient path planning algorithms. Currently, the two-stage framework of “front-end search and back-end optimization” is wid...

  • Article
  • Open Access
4 Citations
8,443 Views
17 Pages

The current work investigates the capability of a tailored multivariate curve resolution–alternating least squares (MCR-ALS) algorithm to analyse glucose, phosphate, ammonium and acetate dynamics simultaneously in an E. coli BL21 fed-batch fermentati...

  • Review
  • Open Access
8 Citations
7,209 Views
27 Pages

From Integer Programming to Machine Learning: A Technical Review on Solving University Timetabling Problems

  • Xin Gu,
  • Muralee Krish,
  • Shaleeza Sohail,
  • Sweta Thakur,
  • Fariza Sabrina and
  • Zongwen Fan

Solving the university timetabling problem is crucial as it ensures efficient use of resources, minimises scheduling conflicts, and enhances overall productivity. This paper presents a comprehensive review of university timetabling problems using int...

  • Article
  • Open Access
2 Citations
1,619 Views
19 Pages

6 March 2025

In this paper, we study numerical algorithms based on Physics-Informed Neural Networks (PINNs) for solving a mixed Stokes/Darcy model that describes a fluid flow coupled with a porous media flow. A Hard Constrained Parallel PINN (HC-PPINN) is propose...

  • Article
  • Open Access
13 Citations
4,900 Views
25 Pages

A Sustainable Multi-Objective Model for Capacitated-Electric-Vehicle-Routing-Problem Considering Hard and Soft Time Windows as Well as Partial Recharging

  • Amir Hossein Sheikh Azadi,
  • Mohammad Khalilzadeh,
  • Jurgita Antucheviciene,
  • Ali Heidari and
  • Amirhossein Soon

Due to the high pollution of the transportation sector, nowadays the role of electric vehicles has been noticed more and more by governments, organizations, and environmentally friendly people. On the other hand, the problem of electric vehicle routi...

  • Feature Paper
  • Article
  • Open Access
19 Citations
4,405 Views
19 Pages

25 April 2018

In this work, we propose a framework for economic model predictive control (EMPC) with zone tracking. A zone tracking stage cost is incorporated into the existing EMPC framework to form a multi-objective optimization problem. We provide sufficient co...

  • Feature Paper
  • Article
  • Open Access
350 Views
7 Pages

Determining the Best Algorithm for the Knapsack Problem with Forfeits

  • Peter Cadiz,
  • Yun Lu,
  • Myung Soon Song and
  • Francis J. Vasko

30 December 2025

In 2024, four papers that presented four different solution approaches for the knapsack problem with forfeits (KPF) appeared in the OR literature. However, none of these four solution approaches compared their performance to the other three on a stan...

  • Article
  • Open Access
3 Citations
1,432 Views
19 Pages

28 August 2024

The dual-active hybrid full-bridge (H-FDAB) DC–DC converter has great potential in medium-voltage high-power photovoltaic power station applications by introducing a three-level bridge arm to increase the output voltage range. However, its math...

  • Article
  • Open Access
10 Citations
4,857 Views
26 Pages

Knowledge and Data-Driven Mapping of Environmental Status Indicators from Remote Sensing and VGI

  • Alessia Goffi,
  • Gloria Bordogna,
  • Daniela Stroppiana,
  • Mirco Boschetti and
  • Pietro Alessandro Brivio

4 February 2020

The paper proposes a transparent approach for mapping the status of environmental phenomena from multisource information based on both soft computing and machine learning. It is transparent, intended as human understandable as far as the employed cri...

  • Article
  • Open Access
247 Views
43 Pages

10 February 2026

Metaheuristic optimization algorithms are widely employed to address complex nonlinear and multimodal optimization problems due to their flexibility and strong global search capability. However, the original Connected Banking System Optimizer (CBSO)...

  • Article
  • Open Access
836 Views
23 Pages

23 October 2025

Accurate and rapid acquisition of soil texture information is crucial to evaluating soil quality, formulating soil and water conservation strategies, and guiding agricultural resource management. Compared with traditional machine learning methods, co...

  • Feature Paper
  • Article
  • Open Access
3 Citations
3,351 Views
17 Pages

22 January 2025

This study introduces a novel Gaussian process (GP) regression framework that probabilistically enforces physical constraints, with a particular focus on equality conditions. The GP model is trained using the quantum-inspired Hamiltonian Monte Carlo...

  • Article
  • Open Access
7 Citations
6,621 Views
15 Pages

2 February 2017

We compare the application of Bayesian inference and the maximum entropy (MaxEnt) method for the analysis of flow networks, such as water, electrical and transport networks. The two methods have the advantage of allowing a probabilistic prediction of...

  • Article
  • Open Access
6 Citations
3,242 Views
22 Pages

9 October 2022

A cuboid is a geometric primitive characterized by six planes with spatial constraints, such as orthogonality and parallelism. These characteristics uniquely define a cuboid. Therefore, previous modeling schemes have used these characteristics as har...

  • Article
  • Open Access
1,851 Views
15 Pages

Multi-Level Dependent-Chance Model for Hydropower Reservoir Operations

  • Xinyu Wu,
  • Xilong Cheng,
  • Meng Zhao,
  • Chuntian Cheng and
  • Qilin Ying

4 July 2022

Some hydropower reservoirs are operated under different constraint levels. For these reservoirs, a multi-level (ML) dependent-chance (DC) model is established. In the model, only when the higher-level constraints are satisfied are the lower-level con...

  • Article
  • Open Access
185 Views
30 Pages

As critical end-effectors enabling the practical deployment of marine robotic systems, soft hands face persistent challenges including multi-finger asynchronization, unbalanced force distribution, and insufficient anti-disturbance robustness, compoun...

  • Article
  • Open Access
9 Citations
3,641 Views
10 Pages

Constraints on CP-Odd ALP Couplings from EDM Limits of Fermions

  • Dmitri V. Kirpichnikov,
  • Valery E. Lyubovitskij and
  • Alexey S. Zhevlakov

16 December 2020

We discuss constraints on soft CP-violating couplings of axion-like particles with photon and fermions by using data on electric dipole moments of standard model particles. In particular, for the axion-like particle (ALP) leptophilic scenario, we der...

  • Article
  • Open Access
1,234 Views
28 Pages

An Automated Pipeline for Modular Space Planning Using Generative Design Within a BIM Environment

  • Wonho Cho,
  • Yeongyu Hwang,
  • WonSeok Choi,
  • Minhyuk Jung and
  • Jaewook Lee

19 October 2025

Spatial Allocation Problems (SAP) in multistory buildings present significant challenges, as they require the simultaneous satisfaction of complex geometric constraints and conflicting functional requirements. To address this problem, this study prop...

  • Article
  • Open Access
2 Citations
2,515 Views
13 Pages

12 January 2023

Sensing the deformation of soft sensor elastomer can realize the flexible operation of soft robot and enhance the perception of human-computer interaction. The structural configuration of elastomer and its elastic deformation force transfer path are...

  • Article
  • Open Access
654 Views
20 Pages

17 October 2025

Target assignment for UAV swarms represents a pivotal and formidable endeavor, characterized by intricate combinatorial optimization and complex constraints. This study introduces an innovative and sophisticated constraint-handling method that adeptl...

  • Article
  • Open Access
5 Citations
2,878 Views
28 Pages

3D Soft-Landing Dynamic Theoretical Model of Legged Lander: Modeling and Analysis

  • Zhiyi Wang,
  • Chuanzhi Chen,
  • Jinbao Chen and
  • Guang Zheng

15 September 2023

In this paper, a novel 3D (three-dimensional) soft-landing dynamic theoretical model of a legged lander is developed in detail as well as its numerical solution process. The six degrees of freedom motion (6-DOF) of the base model of the lander with m...

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