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The real world is inherently non-stationary, with ever-changing factors, such as weather conditions and traffic flows, making it challenging for agents to adapt to varying environmental dynamics. Non-Stationary Reinforcement Learning (NSRL)…

Machine Learning · Computer Science 2025-10-07 Min Wang , Xin Li , Ye He , Yao-Hui Li , Hasnaa Bennis , Riashat Islam , Mingzhong Wang

Instruction-based language modeling has received significant attention in pretrained language models. However, the efficiency of instruction engineering remains low and hinders the development of instruction studies. Recent studies have…

Computation and Language · Computer Science 2023-10-27 Heng Yang , Ke Li

This paper reviews the current progress in applying machine learning (ML) tools to solve NP-hard combinatorial optimization problems, with a focus on routing problems such as the traveling salesman problem (TSP) and the vehicle routing…

Artificial Intelligence · Computer Science 2025-10-09 Fangting Zhou , Attila Lischka , Balazs Kulcsar , Jiaming Wu , Morteza Haghir Chehreghani , Gilbert Laporte

Contemporary hardware design benefits from the abstraction provided by high-level logic gates, streamlining the implementation of logic circuits. Logic Synthesis Optimization (LSO) operates at one level of abstraction within the Electronic…

Artificial Intelligence · Computer Science 2025-03-03 Raika Karimi , Faezeh Faez , Yingxue Zhang , Xing Li , Lei Chen , Mingxuan Yuan , Mahdi Biparva

Evolutionary multiobjective optimization (EMO) has made significant strides over the past two decades. However, as problem scales and complexities increase, traditional EMO algorithms face substantial performance limitations due to…

Neural and Evolutionary Computing · Computer Science 2025-07-11 Zhenyu Liang , Hao Li , Naiwei Yu , Kebin Sun , Ran Cheng

Visual grouping -- operationalized through tasks such as instance segmentation, visual grounding, and object detection -- enables applications ranging from robotic perception to photo editing. These fundamental problems in computer vision…

Computer Vision and Pattern Recognition · Computer Science 2026-01-28 Weikai Huang , Jieyu Zhang , Taoyang Jia , Chenhao Zheng , Ziqi Gao , Jae Sung Park , Winson Han , Ranjay Krishna

The field of simulation optimization (SO) encompasses various methods developed to optimize complex, expensive-to-sample stochastic systems. Established methods include, but are not limited to, ranking-and-selection for finite alternatives…

Machine Learning · Statistics 2025-11-04 Haoting Zhang , Haoxian Chen , Donglin Zhan , Hanyang Zhao , Henry Lam , Wenpin Tang , David Yao , Zeyu Zheng

This research explores a hybrid approach to fine-tuning large language models (LLMs) by integrating real-world and synthetic data to boost model performance, particularly in generating accurate and contextually relevant responses. By…

Computation and Language · Computer Science 2024-10-15 Alexey Zhezherau , Alexei Yanockin

The Traveling Salesman Problem (TSP) is a classic NP-hard combinatorial optimization task with numerous practical applications. Classic heuristic solvers can attain near-optimal performance for small problem instances, but become…

Machine Learning · Computer Science 2025-08-13 Michael Li , Eric Bae , Christopher Haberland , Natasha Jaques

While Multimodal Large Language Models have achieved human-like performance on many visual and textual reasoning tasks, their proficiency in fine-grained spatial understanding, such as route tracing on maps remains limited. Unlike humans,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Artemis Panagopoulou , Aveek Purohit , Achin Kulshrestha , Soroosh Yazdani , Mohit Goyal

Long-horizon robotic manipulation remains challenging for Vision-Language-Action (VLA) models despite recent progress in zero-shot generalization and simulation-to-real-world transfer. Current VLA models suffer from stage hallucination,…

Computer Vision and Pattern Recognition · Computer Science 2025-11-21 Zeting Liu , Zida Yang , Zeyu Zhang , Hao Tang

Vision Language Models (VLMs) often struggle with chart understanding tasks, particularly in accurate chart description and complex reasoning. Synthetic data generation is a promising solution, while usually facing the challenge of noise…

Artificial Intelligence · Computer Science 2025-08-19 Gongyao Jiang , Qiong Luo

End-to-end autonomous driving models based on Vision-Language-Action (VLA) architectures have shown promising results by learning driving policies through behavior cloning on expert demonstrations. However, imitation learning inherently…

Computer Vision and Pattern Recognition · Computer Science 2026-04-06 Zihao Sheng , Xin Ye , Jingru Luo , Sikai Chen , Liu Ren

We present a comparative study of methods for generating realistic, constrained small- to medium-scale road networks with built-in redundancy. In this research, we evaluate the proposed Evolutionary Algorithm (EA) with connectivity and…

Neural and Evolutionary Computing · Computer Science 2026-03-24 Artur Morys-Magiera , Marek Długosz , Paweł Skruch

Existing state-of-the-art novel view synthesis methods rely on either fairly accurate 3D geometry estimation or sampling of the entire space for neural volumetric rendering, which limit the overall efficiency. In order to improve the…

Computer Vision and Pattern Recognition · Computer Science 2022-04-08 Yuemei Zhou , Tao Yu , Zerong Zheng , Ying Fu , Yebin Liu

Robust routing under uncertainty is central to real-world logistics, yet most benchmarks assume static, idealized settings. We present SVRPBench, the first open benchmark to capture high-fidelity stochastic dynamics in vehicle routing at…

Artificial Intelligence · Computer Science 2025-05-30 Ahmed Heakl , Yahia Salaheldin Shaaban , Martin Takac , Salem Lahlou , Zangir Iklassov

The recent end-to-end neural solvers have shown promise for small-scale routing problems but suffered from limited real-time scaling-up performance. This paper proposes GLOP (Global and Local Optimization Policies), a unified hierarchical…

Artificial Intelligence · Computer Science 2024-07-23 Haoran Ye , Jiarui Wang , Helan Liang , Zhiguang Cao , Yong Li , Fanzhang Li

Despite recent progress in using Large Language Models (LLMs) for automatically generating 3D scenes, generated scenes often lack realistic spatial layouts and object attributes found in real-world environments. As this problem stems from…

Computation and Language · Computer Science 2026-01-29 Gyeom Hwangbo , Hyungjoo Chae , Minseok Kang , Hyeonjong Ju , Soohyun Oh , Jinyoung Yeo

Recent advancements in large language models (LLMs) have significantly enhanced the ability of LLM-based systems to perform complex tasks through natural language processing and tool interaction. However, optimizing these LLM-based systems…

Computation and Language · Computer Science 2025-06-19 Peiyan Zhang , Haibo Jin , Leyang Hu , Xinnuo Li , Liying Kang , Man Luo , Yangqiu Song , Haohan Wang

Recent work such as AlphaEvolve has shown that combining LLM-driven optimization with evolutionary search can effectively improve programs, prompts, and algorithms across domains. In this paradigm, previously evaluated solutions are reused…

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