Results 111 to 120 of about 40,576 (238)

Convergence results for continuous-time dynamics arising in ant colony optimization

, 2013
This paper studies the asymptotic behavior of several continuous-time dynamical systems which are analogs of ant colony optimization algorithms that solve shortest path problems. Local asymptotic stability of the equilibrium corresponding to the shortest
Bhaya, Amit, Bliman, Pierre-Alexandre, Jayadeva, Kaszkurewicz, Eugenius   +3 more
core   +2 more sources

The team orienteering problem with variable time windows

International Transactions in Operational Research, Volume 33, Issue 3, Page 1705-1732, May 2026.
Abstract The orienteering problem is well‐established within the domain of operational research. This paper introduces the team orienteering problem with variable time windows (TOPVTW) as a new variant of the team orienteering problem with time windows. The distinguishing feature of the TOPVTW is the adaptive time windows, which evolve dynamically as a
Bibiana Granda, Begoña Vitoriano
wiley   +1 more source

Robot path planning based on obstacle avoidance optimization and improved ant colony algorithm

Xi'an Gongcheng Daxue xuebao
Aimed at the problems of slow convergence speed and redundant planning paths in the processing of path planning by ant colony algorithm, an improved ant colony algorithm based on obstacle avoidance information and fast optimization search strategy was ...
HE Xingshi, CHEN Huiyuan
doaj   +1 more source

Why we age

Biological Reviews, Volume 101, Issue 2, Page 911-925, April 2026.
ABSTRACT Three categories of explanations exist for why we age: mechanistic theories, which omit reference to evolutionary forces; weakening force of selection theories, which posit that barriers exist that prevent evolutionary forces from optimising fitness in ageing; and optimisation theories, which posit that evolutionary forces actually select for ...
Michael S. Ringel
wiley   +1 more source

Tackling Dynamic Vehicle Routing Problem with Time Windows by means of Ant Colony System

, 2017
The Dynamic Vehicle Routing Problem with Time Windows (DVRPTW) is an extension of the well-known Vehicle Routing Problem (VRP), which takes into account the dynamic nature of the problem.
Breaban, Mihaela, Necula, Raluca, Raschip, Madalina   +2 more
core   +1 more source

A Review of Vagus Nerve Stimulation for Disease: Comprehensive Theory and Evidence for Mechanisms of Action

Comprehensive Physiology, Volume 16, Issue 2, April 2026.
Vagus nerve stimulation (VNS) effects span central and peripheral organ systems through diverse mechanistic pathways. This comprehensive review provides a unified synthesis of these mechanisms across neurological, cardiovascular, immunological, metabolic, and gastrointestinal domains, filling a critical gap and serving as a foundational resource for ...
Yifeng Bu, Alex Liang, Benjamin U. Hoffman, Dawn M. Schiehser, Oliver Case, Alan Simmons, Ruth Klaming, Andres Gottfried‐Blackmore, Ravinder K. Mittal, Christopher Puleo, Hubert Lim, Imanuel Lerman   +11 more
wiley   +1 more source

Prognostics and Health Management in Polymer Electrolyte Fuel Cells: Current Trends, Challenges, and Future Directions

Fuel Cells, Volume 26, Issue 2, April 2026.
ABSTRACT Prognostics and health management are crucial for the reliability and lifetime assessment of polymer electrolyte fuel cells (PEFCs). Here, we review the current advances on this topic, focusing mainly on key degradation mechanisms and methodologies such as physics‐aware, data‐driven, and hybrid modeling approaches.
Farideh Abdollahi, Kourosh Malek, Thomas Kadyk, Nadiia Kulyk, Christophe Gerling, Michael H. Eikerling   +5 more
wiley   +1 more source

Research on site selection and capacity determination problem based on improved particle swarm algorithm

Scientific Reports
To promote the effective utilization of distributed power sources after grid connection and achieve the goal of maximizing energy transmission efficiency and minimizing cost, this paper proposes a scheme based on the integration of the improved particle ...
Xiaotong Mi, Qinyang Liu, Bo Geng, Yong Zhu   +3 more
doaj   +1 more source

Path optimization for robots using nature-inspired hybrid algorithms: ACO, PSO, and GSO

Systems and Soft Computing
Path planning represents a fundamental challenge in the domain of artificial intelligence, particularly when autonomous robots are required to operate in complex and dynamic environments. Conventional optimization techniques, including Genetic Algorithms
Sameer Shastri, Nagendra Tripathi, Shobha Lata Sinha, Saroj Kumar Pandey, Maheswaran S, Anurag Sinha, Ayodeji Olalekan Salau   +6 more
doaj   +1 more source

Comparative Study of Ant Colony Algorithms for Multi-Objective Optimization

Information, 2018
In recent years, when solving MOPs, especially discrete path optimization problems, MOACOs concerning other meta-heuristic algorithms have been used and improved often, and they have become a hot research topic.
Jiaxu Ning, Changsheng Zhang, Peng Sun, Yunfei Feng   +3 more
doaj   +1 more source