Results 51 to 60 of about 5,636,127 (168)

Permission to Rise: Self‐Permission and Career Resilience for Women

open access: yesGender, Work &Organization, EarlyView.
ABSTRACT Women remain underrepresented in leadership and are more likely than men to reduce their workforce participation or step back from their careers, particularly when navigating caregiving responsibilities. Although these aggregate gender differences motivate the present study, our goal is not to explain differences between women and men directly.
Kelly Watson, Jodi Detjen
wiley   +1 more source

A matheuristic for the traveling salesman problem with positional consistency constraints

open access: yesInternational Transactions in Operational Research, EarlyView.
Abstract We propose a matheuristic for the traveling salesman problem with positional consistency constraints, where we seek to generate a set of routes with minimum total cost, in which the nodes visited in more than one route (consistent nodes) must occupy the same relative position in all routes.
Luís Gouveia, Ana Paias, Mafalda Ponte
wiley   +1 more source

Evaluation of drone system for thinning operations–a case study in Sweden

open access: yesInternational Transactions in Operational Research, EarlyView.
Abstract Thinning operations in forestry typically involve a two‐machine system (TMS) with a harvester and a forwarder. Its productivity in different forest conditions is well documented. To date, drones have been used for data collection and surveillance but not as an alternative to a TMS.
Mikael Rönnqvist   +3 more
wiley   +1 more source

Improved Cross Entropy Algorithm for the Optimum of Charge Planning Problem

open access: yesAbstract and Applied Analysis, 2014
To solve the charge planning problem involving charges and the orders in each charge, a traveling salesman problem based charge planning model and the improved cross entropy algorithm are proposed. Firstly, the charge planning problem with unknown charge
Fan Yang, Qiqiang Li
doaj   +1 more source

The Pyramidal Method for Traveling Salesman Problem

open access: yesCommunications, 2000
A shortest pyramidal tour (SPT) is a well-solved case of TSP when a distance matrix is the Monge matrix. We study heuristic repeating method for SPT with the distance matrix without restriction.
Stefan Pesko
doaj   +1 more source

Exact and metaheuristic approaches to minimizing makespan in parallel machine scheduling with conflicting jobs

open access: yesInternational Transactions in Operational Research, EarlyView.
Abstract We address the scheduling conflicting jobs on parallel identical machines problem with makespan minimization, a classical and computationally challenging variant of parallel machine scheduling. We develop and evaluate three distinct solution methodologies: a novel constraint programming (CP) formulation, and two metaheuristics: a multi ...
Roberto Maria Rosati   +3 more
wiley   +1 more source

The Traveling Salesman Problem for Cubic Graphs

open access: yesJournal of Graph Algorithms and Applications, 2007
We show how to find a Hamiltonian cycle in a graph of degree at most three with n vertices, in time O(2n/3) ≈ 1.260n and linear space. Our algorithm can find the minimum weight Hamiltonian cycle (traveling salesman problem), in the same time bound.
David Eppstein
doaj   +1 more source

Parallel DNA Algorithms of Generalized Traveling Salesman Problem-Based Bioinspired Computing Model

open access: yesInternational Journal of Computational Intelligence Systems, 2020
Generalized traveling salesman problem (GTSP) is a classical combinatorial optimization problem, in which the optimization goal is the minimum route combination. Since the GTSP is a more complex problem than the traveling salesman problem (TSP), the GTSP
Xiaomin Ren   +3 more
doaj   +1 more source

A path‐based two‐commodity flow model and a branch‐price‐and‐cut algorithm for the inventory routing problem with time windows

open access: yesInternational Transactions in Operational Research, EarlyView.
Abstract We study an inventory routing problem with time windows (IRPTW). A single supplier serves a set of customers to fulfill their demand throughout a planning horizon. Each customer can be visited only within designated time windows, assuming each customer provides a single delivery time window valid for all periods.
Sara Charaf   +5 more
wiley   +1 more source

The application of machine learning models to optimal TSP tour length estimation

open access: yesInternational Transactions in Operational Research, EarlyView.
Abstract The traveling salesman problem (TSP) is a well‐known NP‐hard problem in combinatorial optimization, with numerous applications in logistics and elsewhere. This paper introduces a machine learning‐based approach to estimate the optimal tour length of the TSP, using linear regression, random forests (RF), and neural networks, including ...
Shuhan Kou, Bruce Golden, Luca Bertazzi
wiley   +1 more source

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