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There is a growing interest in utilizing large-scale language models (LLMs) to advance next-generation Recommender Systems (RecSys), driven by their outstanding language understanding and in-context learning capabilities. In this scenario,…

信息检索 · 计算机科学 2025-08-18 Haohao Qu , Wenqi Fan , Zihuai Zhao , Qing Li

Conventional recommendation systems (RSs) are typically optimized to enhance performance metrics uniformly across all training samples. This makes it hard for data-driven RSs to cater to a diverse set of users due to the varying properties…

信息检索 · 计算机科学 2024-05-03 Kirandeep Kaur , Chirag Shah

Large language models (LLMs) have significantly advanced natural language processing, particularly through the integration of external tools and APIs. However, their effectiveness is frequently hampered by parameter mis-filling during tool…

计算与语言 · 计算机科学 2025-06-03 Yue Cui , Liuyi Yao , Shuchang Tao , Weijie Shi , Yaliang Li , Bolin Ding , Xiaofang Zhou

The adoption of large language models (LLMs) as rerankers in multi-stage retrieval systems has gained significant traction in academia and industry. These models refine a candidate list of retrieved documents, often through carefully…

Integrating external tools enables Large Language Models (LLMs) to interact with real-world environments and solve complex tasks. Given the growing scale of available tools, effective tool retrieval is essential to mitigate constraints of…

信息检索 · 计算机科学 2026-02-06 Yichen Tang , Weihang Su , Yiqun Liu , Qingyao Ai

Contemporary recommendation systems predominantly rely on ID embedding to capture latent associations among users and items. However, this approach overlooks the wealth of semantic information embedded within textual descriptions of items,…

信息检索 · 计算机科学 2024-12-30 Jian Jia , Yipei Wang , Yan Li , Honggang Chen , Xuehan Bai , Zhaocheng Liu , Jian Liang , Quan Chen , Han Li , Peng Jiang , Kun Gai

Current state-of-the-art approaches to cross-modal retrieval process text and visual input jointly, relying on Transformer-based architectures with cross-attention mechanisms that attend over all words and objects in an image. While…

计算机视觉与模式识别 · 计算机科学 2022-02-22 Gregor Geigle , Jonas Pfeiffer , Nils Reimers , Ivan Vulić , Iryna Gurevych

Large Language Models (LLMs) have significantly advanced the field of information retrieval, particularly for reranking. Listwise LLM rerankers have showcased superior performance and generalizability compared to existing supervised…

信息检索 · 计算机科学 2024-06-25 Revanth Gangi Reddy , JaeHyeok Doo , Yifei Xu , Md Arafat Sultan , Deevya Swain , Avirup Sil , Heng Ji

While most efforts to improve LLM-based tool-using agents focus on the agent itself - through larger models, better prompting, or fine-tuning - agent performance increasingly plateaus due to the quality of the tool interfaces these agents…

人工智能 · 计算机科学 2026-04-30 Ruocheng Guo , Kaiwen Dong , Xiang Gao , Kamalika Das

Tool-integrated reasoning (TIR) has become a key approach for improving large reasoning models (LRMs) on complex problems. Prior work has mainly studied when to invoke tools, while overlooking how tools are applied. We identify two common…

人工智能 · 计算机科学 2026-01-12 Ningning Xu , Yuxuan Jiang , Shubhashis Roy Dipta , Hengyuan Zhang

Recent studies increasingly explore Large Language Models (LLMs) as a new paradigm for recommendation systems due to their scalability and world knowledge. However, existing work has three key limitations: (1) most efforts focus on…

Large language models (LLMs) have revolutionized natural language processing, yet hallucinations in knowledge-intensive tasks remain a critical challenge. Retrieval-augmented generation (RAG) addresses this by integrating external…

计算与语言 · 计算机科学 2026-02-17 Zhipeng Song , Xiangyu Kong , Xinrui Bao , Yizhi Zhou , Jiulong Jiao , Sitong Liu , Yuhang Zhou , Heng Qi

In recent years, robots and autonomous systems have become increasingly integral to our daily lives, offering solutions to complex problems across various domains. Their application in search and rescue (SAR) operations, however, presents…

机器人学 · 计算机科学 2024-09-23 Dimitrios Panagopoulos , Adolfo Perrusquia , Weisi Guo

Tool-Integrated Reasoning (TIR) enables large language models (LLMs) to solve complex tasks by interacting with external tools, yet existing approaches depend on high-quality synthesized trajectories selected by scoring functions and sparse…

人工智能 · 计算机科学 2026-02-02 Siyu Gong , Linan Yue , Weibo Gao , Fangzhou Yao , Shimin Di , Lei Feng , Min-Ling Zhang

There exist many high-dimensional data in real-world applications such as biology, computer vision, and social networks. Feature selection approaches are devised to confront with high-dimensional data challenges with the aim of efficient…

机器学习 · 计算机科学 2021-06-22 Mohsen Ghassemi Parsa , Hadi Zare , Mehdi Ghatee

Large Language Models (LLMs) can enhance their capabilities as AI assistants by integrating external tools, allowing them to access a wider range of information. While recent LLMs are typically fine-tuned with tool usage examples during…

计算与语言 · 计算机科学 2025-02-27 Jie He , Jennifer Neville , Mengting Wan , Longqi Yang , Hui Liu , Xiaofeng Xu , Xia Song , Jeff Z. Pan , Pei Zhou

Supervised ranking methods based on bi-encoder or cross-encoder architectures have shown success in multi-stage text ranking tasks, but they require large amounts of relevance judgments as training data. In this work, we propose Listwise…

信息检索 · 计算机科学 2023-05-04 Xueguang Ma , Xinyu Zhang , Ronak Pradeep , Jimmy Lin

Reward models (RMs) play a critical role in aligning large language models (LLMs) with human preferences. Yet in the domain of tool learning, the lack of RMs specifically designed for function-calling tasks has limited progress toward more…

人工智能 · 计算机科学 2026-01-14 Renhao Li , Jianhong Tu , Yang Su , Yantao Liu , Fei Huang , Hamid Alinejad-Rokny , Derek F. Wong , Junyang Lin , Min Yang

Augmenting large language models (LLMs) with external tools is a promising approach to enhance their capabilities, especially for complex tasks. Synthesizing tool-use data through real-world simulations is an effective way to achieve this.…

计算与语言 · 计算机科学 2025-11-10 Yirong Zeng , Xiao Ding , Yuxian Wang , Weiwen Liu , Wu Ning , Yutai Hou , Xu Huang , Duyu Tang , Dandan Tu , Bing Qin , Ting Liu

Large language models (LLMs) achieve remarkable advancements by leveraging tools to interact with environments, a critical step toward generalized AI. However, the standard supervised fine-tuning (SFT) approach, which relies on large-scale…