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Interacting particle systems play a key role in science and engineering. Access to the governing particle interaction law is fundamental for a complete understanding of such systems. However, the inherent system complexity keeps the…

机器学习 · 计算机科学 2022-10-25 Zhichao Han , David S. Kammer , Olga Fink

In the classical Reinforcement Learning from Human Feedback (RLHF) framework, Proximal Policy Optimization (PPO) is employed to learn from sparse, sentence-level rewards -- a challenging scenario in traditional deep reinforcement learning.…

机器学习 · 计算机科学 2025-05-22 Han Zhong , Zikang Shan , Guhao Feng , Wei Xiong , Xinle Cheng , Li Zhao , Di He , Jiang Bian , Liwei Wang

Direct Preference Optimization (DPO) trains a language model using human preference data, bypassing the explicit reward modeling phase of Reinforcement Learning from Human Feedback (RLHF). By iterating over sentence pairs in a preference…

机器学习 · 计算机科学 2024-10-31 Jae Hyeon Cho , Minkyung Park , Byung-Jun Lee

Knowledge in materials science is widely dispersed across extensive scientific literature, posing significant challenges to the efficient discovery and integration of new materials. Traditional methods, often reliant on costly and…

计算与语言 · 计算机科学 2025-05-16 Yanpeng Ye , Jie Ren , Shaozhou Wang , Yuwei Wan , Imran Razzak , Bram Hoex , Haofen Wang , Tong Xie , Wenjie Zhang

Aligning text-to-video diffusion models with human preferences is crucial for generating high-quality videos. Existing Direct Preference Otimization (DPO) methods rely on multi-sample ranking and task-specific critic models, which is…

计算机视觉与模式识别 · 计算机科学 2026-05-21 Zitong Huang , Kaidong Zhang , Yukang Ding , Chao Gao , Rui Ding , Ying Chen , Wangmeng Zuo

The capabilities of Large Language Models (LLMs) have opened new frontiers for interacting with complex, domain-specific knowledge. However, prevailing methods like Retrieval-Augmented Generation (RAG) and general-purpose Agentic AI, while…

人工智能 · 计算机科学 2025-07-04 Guangwei Zhang

Using machine learning (ML) techniques to predict material properties is a crucial research topic. These properties depend on numerical data and semantic factors. Due to the limitations of small-sample datasets, existing methods typically…

机器学习 · 计算机科学 2024-04-25 Guangxuan Song , Dongmei Fu , Zhongwei Qiu , Zijiang Yang , Jiaxin Dai , Lingwei Ma , Dawei Zhang

Generating accurate glyphs for visual text rendering is essential yet challenging. Existing methods typically enhance text rendering by training on a large amount of high-quality scene text images, but the limited coverage of glyph…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Xincheng Shuai , Ziye Li , Henghui Ding , Dacheng Tao

At the forefront of state-of-the-art human alignment methods are preference optimization methods (*PO). Prior research has often concentrated on identifying the best-performing method, typically involving a grid search over hyperparameters,…

计算与语言 · 计算机科学 2025-04-30 Kian Ahrabian , Xihui Lin , Barun Patra , Vishrav Chaudhary , Alon Benhaim , Jay Pujara , Xia Song

Sparse Knowledge Graphs (KGs) are commonly encountered in real-world applications, where knowledge is often incomplete or limited. Sparse KG reasoning, the task of inferring missing knowledge over sparse KGs, is inherently challenging due…

计算与语言 · 计算机科学 2025-12-16 Yucan Guo , Saiping Guan , Miao Su , Zeya Zhao , Xiaolong Jin , Jiafeng Guo , Xueqi Cheng

Automated theorem proving (ATP) is one of the most challenging mathematical reasoning tasks for Large Language Models (LLMs). Most existing LLM-based ATP methods rely on supervised fine-tuning, which results in a limited alignment between…

人工智能 · 计算机科学 2025-02-27 Shuming Shi , Ruobing Zuo , Gaolei He , Jianlin Wang , Chenyang Xu , Zhengfeng Yang

Preference learning extends the performance of Code LLMs beyond traditional supervised fine-tuning by leveraging relative quality comparisons. In existing approaches, a set of n candidate solutions is evaluated based on test case success…

计算与语言 · 计算机科学 2025-10-10 Jie Wu , Haoling Li , Xin Zhang , Xiao Liu , Yangyu Huang , Jianwen Luo , Yizhen Zhang , Zuchao Li , Ruihang Chu , Yujiu Yang , Scarlett Li

Knowledge Graphs (KGs) are increasingly used to represent and explore complex, interconnected data across diverse domains. However, existing KG visualization systems remain limited because they fail to provide the context of user questions.…

人机交互 · 计算机科学 2026-04-14 Rumali Perera , Xiaoqi Wang , Han-wei Shen

Direct Preference Optimization (DPO) has emerged as a de-facto approach for aligning language models with human preferences. Recent work has shown DPO's effectiveness relies on training data quality. In particular, clear quality differences…

机器学习 · 计算机科学 2025-01-28 Nirav Diwan , Tolga Ergen , Dongsub Shim , Honglak Lee

Large Language Models (LLMs) are rapidly advancing across diverse domains, yet their application in theoretical physics remains inadequate. While current models show competence in mathematical reasoning and code generation, we identify…

计算与语言 · 计算机科学 2026-03-13 Sirui Lu , Zhijing Jin , Terry Jingchen Zhang , Pavel Kos , J. Ignacio Cirac , Bernhard Schölkopf

Face retouching requires removing subtle imperfections while preserving unique facial identity features, in order to enhance overall aesthetic appeal. However, existing methods suffer from a fundamental trade-off. Supervised learning on…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Jiachen Yang , Xianhui Lin , Yi Dong , Zebiao Zheng , Xing Liu , Hong Gu , Yanmei Fang

Preference learning is a key technology for aligning language models with human values. Reinforcement Learning from Human Feedback (RLHF) is a model-based algorithm to optimize preference learning, which first fits a reward model for…

机器学习 · 计算机科学 2024-03-26 Zaifan Jiang , Xing Huang , Chao Wei

Modeling complex physical dynamics is a fundamental task in science and engineering. Traditional physics-based models are sample efficient, and interpretable but often rely on rigid assumptions. Furthermore, direct numerical approximation…

机器学习 · 计算机科学 2023-03-02 Rui Wang , Rose Yu

The advent of Large Language Models (LLMs) has revolutionized natural language processing. However, these models face challenges in retrieving precise information from vast datasets. Retrieval-Augmented Generation (RAG) was developed to…

信息检索 · 计算机科学 2025-03-04 Yuxin Yang , Haoyang Wu , Tao Wang , Jia Yang , Hao Ma , Guojie Luo

Answering first-order logic (FOL) queries over incomplete knowledge graphs (KGs) is difficult, especially for complex query structures that compose projection, intersection, union, and negation. We propose ROG, a retrieval-augmented…

计算与语言 · 计算机科学 2026-02-03 Ziyan Zhang , Chao Wang , Zhuo Chen , Chiyi Li , Kai Song