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This paper discusses a new variant of the Henry Gas Solubility Optimization (HGSO) Algorithm, called Hybrid HGSO (HHGSO). Unlike its predecessor, HHGSO allows multiple clusters serving different individual meta-heuristic algorithms (i.e.,…

Artificial Intelligence · Computer Science 2021-06-01 Kamal Z. Zamli , Md. Abdul Kader , Saiful Azad , Bestoun S. Ahmed

We introduce Limited Rollout Beam Search (LRBS), a beam search strategy for deep reinforcement learning (DRL) based combinatorial optimization improvement heuristics. Utilizing pre-trained models on the Euclidean Traveling Salesperson…

Machine Learning · Computer Science 2024-12-16 Federico Julian Camerota Verdù , Lorenzo Castelli , Luca Bortolussi

Most metaheuristic algorithms rely on a few searched solutions to guide later searches during the convergence process for a simple reason: the limited computing resource of a computer makes it impossible to retain all the searched…

Artificial Intelligence · Computer Science 2023-06-02 Chun-Wei Tsai , Yi-Cheng Yang , Tzu-Chieh Tang , Che-Wei Hsu

Local search is a fundamental optimization technique that is both widely used in practice and deeply studied in theory, yet its computational complexity remains poorly understood. The traditional frameworks, PLS and the standard algorithm…

Computational Complexity · Computer Science 2026-01-05 Robert Ganian , Hung P. Hoang , Christian Komusiewicz , Nils Morawietz

Dense vector retrieval is an important building block of modern machine learning systems, underlying applications ranging from semantic search to retrieval-augmented generation and knowledge-intensive reasoning. Beyond retrieving items that…

Information Retrieval · Computer Science 2026-05-25 Hang Gao , Dong Deng , Yongfeng Zhang

Traditional retrieval methods have been essential for assessing document similarity but struggle with capturing semantic nuances. Despite advancements in latent semantic analysis (LSA) and deep learning, achieving comprehensive semantic…

Information Retrieval · Computer Science 2024-09-27 Solmaz Seyed Monir , Irene Lau , Shubing Yang , Dongfang Zhao

Automatic Heuristic Design (AHD) is an effective framework for solving complex optimization problems. The development of large language models (LLMs) enables the automated generation of heuristics. Existing LLM-based evolutionary methods…

Artificial Intelligence · Computer Science 2025-12-12 Hui Wang , Yang Liu , Xiaoyu Zhang , Chaoxu Mu

The rapidly changing landscapes of modern optimization problems require algorithms that can be adapted in real-time. This paper introduces an Adaptive Metaheuristic Framework (AMF) designed for dynamic environments. It is capable of…

Artificial Intelligence · Computer Science 2024-04-19 Bestoun S. Ahmed

This paper presents a new framework for anytime heuristic search where the task is to achieve as many goals as possible within the allocated resources. We show the inadequacy of traditional distance-estimation heuristics for tasks of this…

Artificial Intelligence · Computer Science 2015-03-19 D. Davidov , S. Markovitch

Large Language Models (LLMs) have demonstrated remarkable improvements in reasoning and planning through increased test-time compute, often by framing problem-solving as a search process. While methods like Monte Carlo Tree Search (MCTS)…

Artificial Intelligence · Computer Science 2025-06-06 Nathan Herr , Tim Rocktäschel , Roberta Raileanu

Vision-and-Language Navigation (VLN), where an agent follows instructions to reach a target destination, has recently seen significant advancements. In contrast to navigation in discrete environments with predefined trajectories, VLN in…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Guangzhao Dai , Jian Zhao , Yuantao Chen , Yusen Qin , Hao Zhao , Guosen Xie , Yazhou Yao , Xiangbo Shu , Xuelong Li

This paper investigates the optimization of the Vehicle Routing Problem for Security Dispatch (VRPSD). VRPSD focuses on security and patrolling applications which involve challenging constraints including precise timing and strict time…

Artificial Intelligence · Computer Science 2025-03-04 Nguyen Gia Hien Vu , Yifan Tang , Rey Lim , G. Gary Wang

Vision-language models (VLMs) have advanced multimodal reasoning but still face challenges in spatial reasoning for 3D scenes and complex object configurations. To address this, we introduce SpatialViLT, an enhanced VLM that integrates…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Chashi Mahiul Islam , Oteo Mamo , Samuel Jacob Chacko , Xiuwen Liu , Weikuan Yu

A recent study on the classical Capacitated Vehicle Routing Problem (CVRP) introduced an adaptive version of the widely used Iterated Local Search (ILS) paradigm, hybridized with a path-relinking strategy (PR). The solution method, called…

Optimization and Control · Mathematics 2025-07-22 Vinícius R. Máximo , Jean-François Cordeau , Mariá C. V. Nascimento

Real-time search methods are suited for tasks in which the agent is interacting with an initially unknown environment in real time. In such simultaneous planning and learning problems, the agent has to select its actions in a limited amount…

Artificial Intelligence · Computer Science 2011-10-19 V. Bulitko , G. Lee

Differentiable simulation is a promising toolkit for fast gradient-based policy optimization and system identification. However, existing approaches to differentiable simulation have largely tackled scenarios where obtaining smooth…

Machine Learning · Statistics 2022-07-04 Rika Antonova , Jingyun Yang , Krishna Murthy Jatavallabhula , Jeannette Bohg

Parameter inference for dynamical models of (bio)physical systems remains a challenging problem. Intractable gradients, high-dimensional spaces, and non-linear model functions are typically problematic without large computational budgets. A…

Quantitative Methods · Quantitative Biology 2023-09-29 Dominic Boutet , Sylvain Baillet

The real world is messy and unstructured. Uncovering critical information often requires active, goal-driven exploration. It remains to be seen whether Vision-Language Models (VLMs), which recently emerged as a popular zero-shot tool in…

Computer Vision and Pattern Recognition · Computer Science 2025-10-22 Adam Pardyl , Dominik Matuszek , Mateusz Przebieracz , Marek Cygan , Bartosz Zieliński , Maciej Wołczyk

Understanding the behavior of numerical metaheuristic optimization algorithms is critical for advancing their development and application. Traditional visualization techniques, such as convergence plots, trajectory mapping, and fitness…

Neural and Evolutionary Computing · Computer Science 2025-07-04 Gjorgjina Cenikj , Gašper Petelin , Tome Eftimov

Automating the design of heuristic search methods is an active research field within computer science, artificial intelligence and operational research. In order to make these methods more generally applicable, it is important to eliminate…

Artificial Intelligence · Computer Science 2011-07-28 Edmund Burke , Tim Curtois , Matthew Hyde , Gabriela Ochoa , Jose A. Vazquez-Rodriguez