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One of the most well-known problems in transportation and logistics is the Capacitated Vehicle Routing Problem (CVRP). It involves optimizing a set of truck routes to service a set of customers, subject to limits on truck capacity, to…

Improving the controllability, portability, and inference speed of diffusion language models (DLMs) is a key challenge in natural language generation. While recent research has shown significant success in complex text generation with…

Computation and Language · Computer Science 2024-02-16 Cheng Kang , Xinye Chen , Yong Hu , Daniel Novak

Recent research looks to harness the general knowledge and reasoning of large language models (LLMs) into agents that accomplish user-specified goals in interactive environments. Vision-language models (VLMs) extend LLMs to multi-modal data…

Machine Learning · Computer Science 2025-05-07 Jake Grigsby , Yuke Zhu , Michael Ryoo , Juan Carlos Niebles

Recent advancements in large language models (LLMs) integrated with external tools and APIs have successfully addressed complex tasks by using in-context learning or fine-tuning. Despite this progress, the vast scale of tool retrieval…

Information Retrieval · Computer Science 2024-10-07 Yuxiang Zhang , Xin Fan , Junjie Wang , Chongxian Chen , Fan Mo , Tetsuya Sakai , Hayato Yamana

Recent advancements in reinforcement fine-tuning have significantly improved the reasoning ability of large language models (LLMs). In particular, methods such as group relative policy optimization (GRPO) have demonstrated strong…

Artificial Intelligence · Computer Science 2026-03-04 Yang Zhan , Yunhao Li , Zhang Chao , Yuxu Lu , Yan Li

The multi Vehicle Routing Problem with Pickup and Delivery with Time Windows is a challenging version of the Vehicle Routing Problem. In this paper, by embedding many complex assignment routing constraints through constructing a multi…

Optimization and Control · Mathematics 2016-07-07 Monirehalsadat Mahmoudi , Junhua Chen , Xuesong Zhou

The rapid advancement of large language models (LLMs) has facilitated their transformation into conversational chatbots that can grasp contextual nuances and generate pertinent sentences, closely mirroring human values through advanced…

Computation and Language · Computer Science 2024-07-19 Janghwan Lee , Seongmin Park , Sukjin Hong , Minsoo Kim , Du-Seong Chang , Jungwook Choi

Large language models (LLMs) deliver superior performance but require substantial computational resources and operate with relatively low efficiency, while smaller models can efficiently handle simpler tasks with fewer resources. LLM…

Databases · Computer Science 2025-12-01 Kai Mei , Wujiang Xu , Minghao Guo , Shuhang Lin , Yongfeng Zhang

In this paper, we propose a new dataset of Capacitated Vehicle Routing Problem instances which are up to two orders of magnitude larger than those in the currently used benchmarks. Despite these sizes might not have an immediate application…

Discrete Mathematics · Computer Science 2023-06-27 Luca Accorsi , Daniele Vigo

Nowadays, the transport goods problem occupies an important place in the economic life of modern societies. The pickup and delivery problem with time windows (PDPTW) is one of the problems which a large part of the research was interested.…

Neural and Evolutionary Computing · Computer Science 2010-10-06 Imen Harbaoui Dridi , Ryan Kammarti , Mekki Ksouri , Pierre Borne

Recent advancements in Vision-Language (VL) research have sparked new benchmarks for complex visual reasoning, challenging models' advanced reasoning ability. Traditional Vision-Language Models (VLMs) perform well in visual perception tasks…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Zhiyuan Li , Dongnan Liu , Chaoyi Zhang , Heng Wang , Tengfei Xue , Weidong Cai

Vehicle routing problems (VRPs) form a class of combinatorial problems with wide practical applications. While previous heuristic or learning-based works achieve decent solutions on small problem instances of up to 100 cities, their…

Machine Learning · Computer Science 2021-10-29 Sirui Li , Zhongxia Yan , Cathy Wu

We propose a feature-based guidance mechanism to enhance metaheuristic algorithms for solving the Capacitated Vehicle Routing Problem (CVRP). This mechanism leverages an Explainable AI (XAI) model to identify features that correlate with…

Artificial Intelligence · Computer Science 2025-12-23 Bachtiar Herdianto , Romain Billot , Flavien Lucas , Marc Sevaux

Large Language Model (LLM)-based systems, i.e. interconnected elements that include an LLM as a central component, such as conversational agents, are usually designed with monolithic, static architectures that rely on a single,…

Artificial Intelligence · Computer Science 2025-07-22 Clovis Varangot-Reille , Christophe Bouvard , Antoine Gourru , Mathieu Ciancone , Marion Schaeffer , François Jacquenet

We propose a brand-new formulation of capacitated vehicle routing problem (CVRP) as quadratic unconstrained binary optimization (QUBO). The formulated CVRP is equipped with time-table which describes time-evolution of each vehicle.…

The rise of large language models (LLMs) has significantly advanced various natural language processing (NLP) tasks. However, the resource demands of these models pose substantial challenges. Structured pruning is an effective approach to…

Machine Learning · Computer Science 2024-12-17 Changhai Zhou , Yuhua Zhou , Shijie Han , Qian Qiao , Hongguang Li

Recent studies have revealed the potential of training open-source Large Language Models (LLMs) to unleash LLMs' reasoning ability for enhancing vision-language navigation (VLN) performance, and simultaneously mitigate the domain gap…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Bingqian Lin , Yunshuang Nie , Khun Loun Zai , Ziming Wei , Mingfei Han , Rongtao Xu , Minzhe Niu , Jianhua Han , Hanwang Zhang , Liang Lin , Bokui Chen , Cewu Lu , Xiaodan Liang

We consider the coordinated vehicle platooning problem on a tree network with time constraints while the routes of vehicles are given. The problem is to coordinate the departure time of each vehicle to enable platoon formation hence…

Optimization and Control · Mathematics 2024-11-25 Fengqiao Luo

Current state-of-the-art NMT systems use large neural networks that are not only slow to train, but also often require many heuristics and optimization tricks, such as specialized learning rate schedules and large batch sizes. This is…

Computation and Language · Computer Science 2019-03-27 Emmanouil Antonios Platanios , Otilia Stretcu , Graham Neubig , Barnabas Poczos , Tom M. Mitchell

Visual question answering (VQA) is crucial for promoting surgical education. In practice, the needs of trainees are constantly evolving, such as learning more surgical types, adapting to different robots, and learning new surgical…

Information Retrieval · Computer Science 2024-10-24 Yuyang Du , Kexin Chen , Yue Zhan , Chang Han Low , Tao You , Mobarakol Islam , Ziyu Guo , Yueming Jin , Guangyong Chen , Pheng-Ann Heng