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Collaborative Metric Learning (CML) has recently emerged as a popular method in recommendation systems (RS), closing the gap between metric learning and Collaborative Filtering. Following the convention of RS, existing methods exploit…

信息检索 · 计算机科学 2022-10-03 Shilong Bao , Qianqian Xu , Zhiyong Yang , Yuan He , Xiaochun Cao , Qingming Huang

Evaluating the alignment of large language models (LLMs) with user-defined coding preferences is a challenging endeavour that requires a deep assessment of LLMs' outputs. Existing methods and benchmarks rely primarily on automated metrics…

软件工程 · 计算机科学 2024-12-30 Martin Weyssow , Aton Kamanda , Xin Zhou , Houari Sahraoui

Alignment is the most critical step in building large language models (LLMs) that meet human needs. With the rapid development of LLMs gradually surpassing human capabilities, traditional alignment methods based on human-annotation are…

计算与语言 · 计算机科学 2024-09-04 Boxi Cao , Keming Lu , Xinyu Lu , Jiawei Chen , Mengjie Ren , Hao Xiang , Peilin Liu , Yaojie Lu , Ben He , Xianpei Han , Le Sun , Hongyu Lin , Bowen Yu

Multi-objective alignment from human feedback (MOAHF) in large language models (LLMs) is a challenging problem as human preferences are complex, multifaceted, and often conflicting. Recent works on MOAHF considered a-priori multi-objective…

机器学习 · 计算机科学 2024-12-10 Subhojyoti Mukherjee , Anusha Lalitha , Sailik Sengupta , Aniket Deshmukh , Branislav Kveton

A critical factor in the success of decision support systems is the accurate modeling of user preferences. Psychology research has demonstrated that users often develop their preferences during the elicitation process, highlighting the…

Precise access control decisions are crucial for the security of both traditional applications and emerging agent-based systems. Typically, these decisions are made by users during app installation or at runtime. However, due to the…

密码学与安全 · 计算机科学 2026-05-06 Friederike Groschupp , Daniele Lain , Aritra Dhar , Lara Magdalena Lazier , Srdjan Čapkun

Large-language Models (LLMs) have been extremely successful at tasks like complex dialogue understanding, reasoning and coding due to their emergent abilities. These emergent abilities have been extended with multi-modality to include…

信息检索 · 计算机科学 2025-05-19 Li Yang , Anushya Subbiah , Hardik Patel , Judith Yue Li , Yanwei Song , Reza Mirghaderi , Vikram Aggarwal , Qifan Wang

Methods for controlling large language models (LLMs), including local weight fine-tuning, LoRA-based adaptation, and activation-based interventions, are often studied in isolation, obscuring their connections and making comparison…

Modern signal processing (SP) pipelines, whether model-based or data-driven, often constrained by complex and fragmented workflow, rely heavily on expert knowledge and manual engineering, and struggle with adaptability and generalization…

机器学习 · 计算机科学 2025-10-31 Junlong Ke , Qiying Hu , Shenghai Yuan , Yuecong Xu , Jianfei Yang

Large language models (LLMs) have become an important semantic infrastructure for modern recommender systems. A prevailing paradigm integrates LLM-derived semantic embeddings with collaborative representations via representation alignment,…

信息检索 · 计算机科学 2026-04-27 Maolin Wang , Dongze Wu , Jianing Zhou , Hongyu Chen , Beining Bao , Yu Jiang , Chenbin Zhang , Chang Wang , Jian Liu , Lei Sha

The capacity of existing human keypoint localization models is limited by keypoint priors provided by the training data. To alleviate this restriction and pursue more general model, this work studies keypoint localization from a different…

计算机视觉与模式识别 · 计算机科学 2024-06-10 Dongkai Wang , Shiyu Xuan , Shiliang Zhang

Instruction tuning large language models (LLMs) remains a challenging task, owing to the complexity of hyperparameter selection and the difficulty involved in evaluating the tuned models. To determine the optimal hyperparameters, an…

Recent advancements in tool learning have enabled large language models (LLMs) to integrate external tools, enhancing their task performance by expanding their knowledge boundaries. However, relying on tools often introduces tradeoffs…

计算与语言 · 计算机科学 2025-03-11 Hongshen Xu , Zihan Wang , Zichen Zhu , Lei Pan , Xingyu Chen , Lu Chen , Kai Yu

Cloud compute systems allow administrators to write access control policies that govern access to private data. While policies are written in convenient languages, such as AWS Identity and Access Management Policy Language, manually written…

软件工程 · 计算机科学 2025-03-17 Adarsh Vatsa , Pratyush Patel , William Eiers

Many languages and algebras have been proposed in recent years for the specification of authorization policies. For some proposals, such as XACML, the main motivation is to address real-world requirements, typically by providing a complex…

密码学与安全 · 计算机科学 2011-11-28 Jason Crampton , Charles Morisset

Large Language Models (LLMs) are rapidly reshaping machine translation (MT), particularly by introducing instruction-following, in-context learning, and preference-based alignment into what has traditionally been a supervised…

计算与语言 · 计算机科学 2026-04-29 Baban Gain , Dibyanayan Bandyopadhyay , Asif Ekbal , Trilok Nath Singh

Recent advancements in Large Language Models (LLMs) have sparked widespread concerns about their safety. Recent work demonstrates that safety alignment of LLMs can be easily removed by fine-tuning with a few adversarially chosen…

计算与语言 · 计算机科学 2025-03-03 Samuele Poppi , Zheng-Xin Yong , Yifei He , Bobbie Chern , Han Zhao , Aobo Yang , Jianfeng Chi

Aligned LLMs are secure, capable of recognizing and refusing to answer malicious questions. However, the role of internal parameters in maintaining such security is not well understood yet, further these models can be vulnerable to security…

密码学与安全 · 计算机科学 2025-04-08 Shen Li , Liuyi Yao , Lan Zhang , Yaliang Li

The utility of large language models (LLMs) depends heavily on the quality and quantity of their training data. Many organizations possess large data corpora that could be leveraged to train or fine-tune LLMs tailored to their specific…

机器学习 · 计算机科学 2025-02-11 Tom Segal , Asaf Shabtai , Yuval Elovici

By adapting Large Language Models (LLMs) to domain-specific tasks or enriching them with domain-specific knowledge, we can fully harness the capabilities of LLMs. Nonetheless, a gap persists in achieving simultaneous mutual enhancement…

计算与语言 · 计算机科学 2026-04-24 Tao Fan , Yan Kang , Guoqiang Ma , Lixin Fan , Shuoling Liu , Kai Chen , Qiang Yang