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Large Language Models (LLMs) exhibit impressive performance across various tasks, but deploying them for inference poses challenges. Their high resource demands often necessitate complex, costly multi-GPU pipelines, or the use of smaller,…

机器学习 · 计算机科学 2024-12-10 Runsheng Bai , Bo Liu , Qiang Liu

This work studies heterogeneous Multi-Objective Reinforcement Learning (MORL), where objectives can differ sharply in temporal frequency. Such heterogeneity allows dense objectives to dominate learning, while sparse long-horizon rewards…

机器学习 · 计算机科学 2026-02-23 Finn van der Knaap , Kejiang Qian , Zheng Xu , Fengxiang He

We introduce \textbf{Prism}, a framework for structural symmetry diagnosis in complex networks. Given a graph Laplacian $L$ and a duality operator $P$ (a symmetric involution), Prism computes the \emph{duality defect} $\delta(L,P) = \|LP -…

社会与信息网络 · 计算机科学 2026-05-21 Jiatong Xie

Medical vision-language models (VLMs) offer promise for clinical decision support, yet their reliability under distribution shifts remains a major concern for safe deployment. These models often learn task-agnostic correlations due to…

计算机视觉与模式识别 · 计算机科学 2025-09-12 Umaima Rahman , Raza Imam , Mohammad Yaqub , Dwarikanath Mahapatra

Machine learning systems in fraud detection, credit scoring, and clinical risk assessment operate under delayed ground truth: outcome labels arrive days to months after the decision they evaluate. During this blind period, governance…

计算机与社会 · 计算机科学 2026-04-20 Oleg Solozobov

Visual instruction tuning adapts pre-trained Multimodal Large Language Models (MLLMs) to follow human instructions for real-world applications. However, the rapid growth of these datasets introduces significant redundancy, leading to…

计算机视觉与模式识别 · 计算机科学 2026-01-14 Jinhe Bi , Aniri , Yifan Wang , Danqi Yan , Wenke Huang , Zengjie Jin , Xiaowen Ma , Sikuan Yan , Artur Hecker , Mang Ye , Xun Xiao , Hinrich Schuetze , Volker Tresp , Yunpu Ma

Bias audits of large language models now operate within governance frameworks such as the EU AI Act, making benchmark reliability a security concern in its own right. Many current benchmarks, however, collapse bias into a single scalar from…

计算与语言 · 计算机科学 2026-05-12 Jialing Gan , Junhao Dong , Songze Li

Existing methods usually leverage a fixed strategy, such as natural language reasoning, code-augmented reasoning, tool-integrated reasoning, or ensemble-based reasoning, to guide Large Language Models (LLMs) to perform mathematical…

人工智能 · 计算机科学 2025-09-30 Shihao Qi , Jie Ma , Ziang Yin , Lingling Zhang , Jian Zhang , Jun Liu , Feng Tian , Tongliang Liu

Large Language Models (LLMs) fine-tuned to align with human values often exhibit alignment drift, producing unsafe or policy-violating completions when exposed to adversarial prompts, decoding perturbations, or paraphrased jailbreaks. While…

人工智能 · 计算机科学 2025-08-05 Amitava Das , Vinija Jain , Aman Chadha

Colorectal cancer (CRC) remains the third most prevalent malignancy globally, with approximately 154,000 new cases and 54,000 projected deaths anticipated for 2025. The recent advancement of foundation models in computational pathology has…

计算机视觉与模式识别 · 计算机科学 2025-10-17 Usama Sajjad , Abdul Rehman Akbar , Ziyu Su , Deborah Knight , Wendy L. Frankel , Metin N. Gurcan , Wei Chen , Muhammad Khalid Khan Niazi

Although Simultaneous Localization and Mapping (SLAM) has been an active research topic for decades, current state-of-the-art methods still suffer from instability or inaccuracy due to feature insufficiency or its inherent estimation drift,…

机器人学 · 计算机科学 2022-07-28 Yang Lyu , Thien-Minh Nguyen , Liu Liu , Muqing Cao , Shenghai Yuan , Thien Hoang Nguyen , Lihua Xie

The prevailing post-training paradigm for Large Reasoning Models (LRMs) - Supervised Fine-Tuning (SFT) followed by Reinforcement Learning (RL) - suffers from an intrinsic optimization mismatch: the rigid supervision inherent in SFT induces…

机器学习 · 计算机科学 2026-03-19 Zhengyang Zhao , Lu Ma , Yizhen Jiang , Xiaochen Ma , Zimo Meng , Chengyu Shen , Lexiang Tang , Haoze Sun , Peng Pei , Wentao Zhang

Large Language Models (LLMs) are increasingly relied upon for complex workflows, yet their ability to maintain flow of instructions remains underexplored. Existing benchmarks conflate task complexity with structural ordering, making it…

人工智能 · 计算机科学 2026-01-28 Andrew Jaffe , Noah Reicin , Jinho D. Choi

Vision-Language Models (VLMs) such as CLIP learn a shared embedding space for images and text, yet their representations remain geometrically separated, a phenomenon known as the modality gap. This gap limits tasks requiring cross-modal…

计算机视觉与模式识别 · 计算机科学 2026-04-02 Hongyuan Liu , Qinli Yang , Wen Li , Zhong Zhang , Jiaming Liu , Wei Han , Zhili Qin , Jinxia Guo , Junming Shao

Evaluating identity preservation in generative models remains a critical yet unresolved challenge. Existing metrics rely on global embeddings or coarse VLM prompting, failing to capture fine-grained identity changes and providing limited…

计算机视觉与模式识别 · 计算机科学 2025-11-12 Aditi Singhania , Krutik Malani , Riddhi Dhawan , Arushi Jain , Garv Tandon , Nippun Sharma , Souymodip Chakraborty , Vineet Batra , Ankit Phogat

Document layout understanding remains data-intensive despite advances in semi-supervised learning. We present a framework that enhances semi-supervised detection by fusing visual predictions with structural priors from text-pretrained LLMs…

计算机视觉与模式识别 · 计算机科学 2025-11-14 Ibne Farabi Shihab , Sanjeda Akter , Anuj Sharma

Structured width pruning of GLU-MLP layers, guided by the Maximum Absolute Weight (MAW) criterion, reveals a systematic dichotomy in how reducing the expansion ratio affects different model capabilities. While performance on tasks relying…

计算与语言 · 计算机科学 2026-05-07 Pere Martra

Large language models (LLMs) are increasingly deployed in high-stakes domains, where rare but severe failures can result in irreversible harm. However, prevailing evaluation benchmarks often reduce complex social risk to mean-centered…

计算与语言 · 计算机科学 2026-01-30 Alok Abhishek , Tushar Bandopadhyay , Lisa Erickson

In massive data analysis, training and testing data often come from very different sources, and their probability distributions are not necessarily identical. A feature example is nonparametric classification in posterior drift model where…

统计理论 · 数学 2020-11-10 Ruiqi Liu , Kexuan Li , Zuofeng Shang

Graph-based Retrieval-Augmented Generation (GraphRAG) enhances Large Language Models (LLMs) by incorporating external knowledge from linearized subgraphs retrieved from knowledge graphs. However, LLMs struggle to interpret the relational…

计算与语言 · 计算机科学 2025-12-11 Shanghao Li , Jinda Han , Yibo Wang , Yuanjie Zhu , Zihe Song , Langzhou He , Kenan Kamel A Alghythee , Philip S. Yu