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A common technique for aligning large language models (LLMs) relies on acquiring human preferences by comparing multiple generations conditioned on a fixed context. This method, however, relies solely on pairwise comparisons, where the…

计算与语言 · 计算机科学 2025-01-09 Hritik Bansal , Ashima Suvarna , Gantavya Bhatt , Nanyun Peng , Kai-Wei Chang , Aditya Grover

Recently, tool-augmented LLMs have gained increasing attention. Given an instruction, tool-augmented LLMs can interact with various external tools in multiple rounds and provide a final answer. However, previous LLMs were trained on overly…

计算与语言 · 计算机科学 2024-11-05 Qinzhuo Wu , Wei Liu , Jian Luan , Bin Wang

Medical image analysis using deep learning is often challenged by limited labeled data and high annotation costs. Fine-tuning the entire network in label-limited scenarios can lead to overfitting and suboptimal performance. Recently, prompt…

计算机视觉与模式识别 · 计算机科学 2023-08-10 Fan Bai , Ke Yan , Xiaoyu Bai , Xinyu Mao , Xiaoli Yin , Jingren Zhou , Yu Shi , Le Lu , Max Q. -H. Meng

Multimodal Large Language Models (MLLMs) have demonstrated significant progress in vision-language tasks, yet they still face challenges when processing long-duration video inputs. The limitation arises from MLLMs' context limit and…

计算机视觉与模式识别 · 计算机科学 2025-11-14 Canhui Tang , Zifan Han , Hongbo Sun , Sanping Zhou , Xuchong Zhang , Xin Wei , Ye Yuan , Huayu Zhang , Jinglin Xu , Hao Sun

Existing deepfake analysis methods are primarily based on discriminative models, which significantly limit their application scenarios. This paper aims to explore interactive deepfake analysis by performing instruction tuning on multi-modal…

计算机视觉与模式识别 · 计算机科学 2025-01-03 Lixiong Qin , Ning Jiang , Yang Zhang , Yuhan Qiu , Dingheng Zeng , Jiani Hu , Weihong Deng

Large Language Model (LLM)-based Text-to-Speech (TTS) models have already reached a high degree of naturalness. However, the precision control of TTS inference is still challenging. Although instruction-based Text-to-Speech (Instruct-TTS)…

音频与语音处理 · 电气工程与系统科学 2026-03-17 Sihang Nie , Xiaofen Xing , Jingyuan Xing , Baiji Liu , Xiangmin Xu

Large language models (LLMs) and multimodal LLMs (MLL-Ms) excel at chain-of-thought reasoning but face distribution shift at test-time and a lack of verifiable supervision. Recent test-time reinforcement learning (TTRL) methods derive…

计算与语言 · 计算机科学 2026-03-09 Jianghao Wu , Yasmeen George , Jin Ye , Yicheng Wu , Daniel F. Schmidt , Jianfei Cai

Training Large Language Models (LLMs) with Group Relative Policy Optimization (GRPO) encounters a significant challenge: models often fail to produce accurate responses, particularly in small-scale architectures. This limitation not only…

计算与语言 · 计算机科学 2025-10-10 Fu Chen , Peng Wang , Xiyin Li , Wen Li , Shichi Lei , Dongdong Xiang

This paper addresses the problem of preference learning, which aims to align robot behaviors through learning user specific preferences (e.g. "good pull-over location") from visual demonstrations. Despite its similarity to learning factual…

机器人学 · 计算机科学 2025-01-16 Sadanand Modak , Noah Patton , Isil Dillig , Joydeep Biswas

Aligning large language models (LLMs) is a central objective of post-training, often achieved through reward modeling and reinforcement learning methods. Among these, direct preference optimization (DPO) has emerged as a widely adopted…

计算与语言 · 计算机科学 2026-03-03 Aladin Djuhera , Farhan Ahmed , Swanand Ravindra Kadhe , Syed Zawad , Heiko Ludwig , Holger Boche

Data quality plays a critical role in enhancing supervised fine-tuning (SFT) for large language models (LLMs), and token-level data selection has emerged as a promising direction for its fine-grained nature. Despite their strong empirical…

人工智能 · 计算机科学 2025-10-22 Xiaohan Qin , Xiaoxing Wang , Ning Liao , Cancheng Zhang , Xiangdong Zhang , Mingquan Feng , Jingzhi Wang , Junchi Yan

The rise of large language models (LLMs) has created a significant disparity: industrial research labs with their computational resources, expert teams, and advanced infrastructures, can effectively fine-tune LLMs, while individual…

Direct alignment algorithms have proven an effective step for aligning language models to human-desired behaviors. Current variants of the Direct Preference Optimization objective have focused on a strict setting where all tokens are…

计算与语言 · 计算机科学 2025-11-03 Fenia Christopoulou , Ronald Cardenas , Gerasimos Lampouras , Haitham Bou-Ammar , Jun Wang

Instruction tuning is a pivotal technique for aligning large language models (LLMs) with human intentions, safety constraints, and domain-specific requirements. This survey provides a comprehensive overview of the full pipeline,…

计算与语言 · 计算机科学 2025-11-20 Xudong Han , Junjie Yang , Tianyang Wang , Ziqian Bi , Xinyuan Song , Junfeng Hao , Junhao Song

Pre-trained language models (PLMs) demonstrate remarkable intelligence but struggle with emerging tasks unseen during training in real-world applications. Training separate models for each new task is usually impractical. Multi-task…

计算与语言 · 计算机科学 2025-05-02 Xiao Zhang , Kangsheng Wang , Tianyu Hu , Huimin Ma

This paper presents a novel methodology for generating synthetic Preference Optimization (PO) datasets using multi-model workflows. We evaluate the effectiveness and potential of these workflows in automating and enhancing the dataset…

计算与语言 · 计算机科学 2025-08-18 Samee Arif , Sualeha Farid , Abdul Hameed Azeemi , Awais Athar , Agha Ali Raza

Large language models (LLMs) alignment aims to ensure that the behavior of LLMs meets human preferences. While collecting data from multiple fine-grained, aspect-specific preferences becomes more and more feasible, existing alignment…

机器学习 · 计算机科学 2026-03-03 Jia Zhang , Yao Liu , Chen-Xi Zhang , Yi Liu , Yi-Xuan Jin , Lan-Zhe Guo , Yu-Feng Li

Process reward models (PRMs) have shown success in complex reasoning tasks for large language models (LLMs). However, their application to machine translation (MT) remains underexplored due to the lack of systematic methodologies and…

计算与语言 · 计算机科学 2025-09-22 Zhaopeng Feng , Jiahan Ren , Jiayuan Su , Jiamei Zheng , Hongwei Wang , Zuozhu Liu

Feature Selection (FS) is crucial for improving model interpretability, reducing complexity, and sometimes for enhancing accuracy. The recently introduced Tsetlin machine (TM) offers interpretable clause-based learning, but lacks…

机器学习 · 计算机科学 2025-08-12 Vojtech Halenka , Ole-Christoffer Granmo , Lei Jiao , Per-Arne Andersen

Since the inception of Large Language Models (LLMs), the quest to efficiently train them for superior reasoning capabilities has been a pivotal challenge. The dominant training paradigm for LLMs is based on next token prediction (NTP).…

计算与语言 · 计算机科学 2025-02-21 Pengxiao Lin , Zhongwang Zhang , Zhi-Qin John Xu