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Large language models (LLMs) often exhibit complementary strengths. Model routing harnesses these strengths by dynamically directing each query to the most suitable model, given a candidate model pool. However, routing performance relies on…

Machine Learning · Computer Science 2025-11-17 Chenxu Wang , Hao Li , Yiqun Zhang , Linyao Chen , Jianhao Chen , Ping Jian , Peng Ye , Qiaosheng Zhang , Shuyue Hu

In information retrieval, large language models (LLMs) have demonstrated remarkable potential in text reranking tasks by leveraging their sophisticated natural language understanding and advanced reasoning capabilities. However,…

Information Retrieval · Computer Science 2025-09-22 Haowei Liu , Xuyang Wu , Guohao Sun , Zhiqiang Tao , Yi Fang

Large language models (LLMs) are increasingly accessed as remotely hosted services by edge and enterprise clients that cannot run frontier models locally. Since models vary widely in capability and price, routing queries to models that…

Machine Learning · Computer Science 2026-02-02 Baris Askin , Shivam Patel , Anupam Nayak , Andrea Vigano , Jiin Woo , Gauri Joshi , Carlee Joe-Wong

Despite the advances in large language models (LLMs), how they use their knowledge for reasoning is not yet well understood. In this study, we propose a method that deconstructs complex real-world questions into a graph, representing each…

Computation and Language · Computer Science 2024-10-07 Miyoung Ko , Sue Hyun Park , Joonsuk Park , Minjoon Seo

In modern e-commerce search systems, dense retrieval has become an indispensable component. By computing similarities between query and item (product) embeddings, it efficiently selects candidate products from large-scale repositories. With…

Information Retrieval · Computer Science 2025-10-20 Jianting Tang , Dongshuai Li , Tao Wen , Fuyu Lv , Dan Ou , Linli Xu

Large Vision-Language Models (LVLMs) have demonstrated remarkable multimodal capabilities, but they inherit the tendency to hallucinate from their underlying language models. While visual contrastive decoding has been proposed to mitigate…

Computer Vision and Pattern Recognition · Computer Science 2026-03-04 Eun Woo Im , Muhammad Kashif Ali , Vivek Gupta

Recent advances in large language models (LLMs) have demonstrated impressive capabilities in code-related tasks, such as code generation and automated program repair. Despite their promising performance, most existing approaches for code…

Software Engineering · Computer Science 2025-09-03 Yicong Zhao , Shisong Chen , Jiacheng Zhang , Zhixu Li

LLMs often achieve similar average benchmark accuracies while exhibiting complementary strengths on different subsets of queries, suggesting that a router with query-specific model selection can outperform any single model. While existing…

Computation and Language · Computer Science 2026-04-02 Tanay Varshney , Annie Surla , Michelle Xu , Gomathy Venkata Krishnan , Maximilian Jeblick , David Austin , Neal Vaidya , Davide Onofrio

Multimodal Large Language Models (MLLMs) struggle with continual learning, often suffering from catastrophic forgetting when adapting to sequential tasks. We introduce a routing-based architecture that integrates new capabilities while…

Machine Learning · Computer Science 2026-04-08 Jay Mohta , Kenan Emir Ak , Gwang Lee , Dimitrios Dimitriadis , Yan Xu , Mingwei Shen

Large Language Models (LLMs) deliver state-of-the-art performance across many tasks but impose high computational and memory costs, limiting their deployment in resource-constrained or real-time settings. To address this, we propose…

Computation and Language · Computer Science 2025-11-14 Nikunj Gupta , Bill Guo , Rajgopal Kannan , Viktor K. Prasanna

Large Language Models (LLMs), despite their remarkable capabilities, rely on singular, pre-dominant reasoning paradigms, hindering their performance on intricate problems that demand diverse cognitive strategies. To address this, we…

Computation and Language · Computer Science 2025-09-29 Zishan Ahmad , Saisubramaniam Gopalakrishnan

The field of neural machine translation (NMT) has changed with the advent of large language models (LLMs). Much of the recent emphasis in natural language processing (NLP) has been on modeling machine translation and many other problems…

Computation and Language · Computer Science 2025-06-03 Yingfeng Luo , Tong Zheng , Yongyu Mu , Bei Li , Qinghong Zhang , Yongqi Gao , Ziqiang Xu , Peinan Feng , Xiaoqian Liu , Tong Xiao , Jingbo Zhu

Reasoning is a core capability of large language models, yet how multi-step reasoning is learned and executed remains unclear. We study this question in a controlled cellular-automata (1dCA) framework that excludes memorisation by using…

Contemporary translation engines based on the encoder-decoder framework have made significant strides in development. However, the emergence of Large Language Models (LLMs) has disrupted their position by presenting the potential for…

Computation and Language · Computer Science 2024-05-28 Jiali Zeng , Fandong Meng , Yongjing Yin , Jie Zhou

Routing problems are canonical combinatorial optimization tasks with wide-ranging applications in logistics, transportation, and supply chain management. However, solving these problems becomes significantly more challenging when complex…

Optimization and Control · Mathematics 2026-04-06 Tianyou Li , Haijun Zou , Jiayuan Wu , Zaiwen Wen

We study the problem of routing queries to large language models (LLMs) under cost, GPU resources, and concurrency constraints. Prior per-query routing methods often fail to control batch-level cost, especially under non-uniform or…

Machine Learning · Computer Science 2026-03-31 Jelena Markovic-Voronov , Kayhan Behdin , Yuanda Xu , Zhengze Zhou , Zhipeng Wang , Rahul Mazumder

Augmenting Large Language Models (LLMs) with retrieved external knowledge has proven effective for improving the factual accuracy of generated responses. Despite their success, retrieval-augmented LLMs still face the distractibility issue,…

Computation and Language · Computer Science 2025-02-18 Zexuan Qiu , Zijing Ou , Bin Wu , Jingjing Li , Aiwei Liu , Irwin King

Generative retrieval (GR) is an emerging paradigm that leverages large language models (LLMs) to autoregressively generate document identifiers (docids) relevant to a given query. Prior works have focused on leveraging the generative…

Information Retrieval · Computer Science 2025-10-22 Yingchen Zhang , Ruqing Zhang , Jiafeng Guo , Wenjun Peng , Sen Li , Fuyu Lv

Routing problems are common in mobile robotics, encompassing tasks such as inspection, surveillance, and coverage. Depending on the objective and constraints, these problems often reduce to variants of the Traveling Salesman Problem (TSP),…

Computation and Language · Computer Science 2024-08-08 Zhehui Huang , Guangyao Shi , Gaurav S. Sukhatme

Query routing, the task to route user queries to different large language model (LLM) endpoints, can be considered as a text classification problem. However, out-of-distribution queries must be handled properly, as those could be about…

Artificial Intelligence · Computer Science 2026-01-29 Richard Šléher , William Brach , Tibor Sloboda , Kristián Košťál , Lukas Galke