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In-Context Learning (ICL) combined with pre-trained large language models has achieved promising results on various NLP tasks. However, ICL requires high-quality annotated demonstrations which might not be available in real-world scenarios.…

计算与语言 · 计算机科学 2023-11-07 Dawei Li , Yaxuan Li , Dheeraj Mekala , Shuyao Li , Yulin wang , Xueqi Wang , William Hogan , Jingbo Shang

We introduce Diffusion Augmented Agents (DAAG), a novel framework that leverages large language models, vision language models, and diffusion models to improve sample efficiency and transfer learning in reinforcement learning for embodied…

机器学习 · 计算机科学 2024-07-31 Norman Di Palo , Leonard Hasenclever , Jan Humplik , Arunkumar Byravan

Continuous-Time Dynamic Graph (CTDG) precisely models evolving real-world relationships, drawing heightened interest in dynamic graph learning across academia and industry. However, existing CTDG models encounter challenges stemming from…

机器学习 · 计算机科学 2024-07-23 Yuxing Tian , Yiyan Qi , Aiwen Jiang , Qi Huang , Jian Guo

Online intelligent education platforms have generated a vast amount of distributed student learning data. This influx of data presents opportunities for cognitive diagnosis (CD) to assess students' mastery of knowledge concepts while also…

机器学习 · 计算机科学 2025-08-05 Shangshang Yang , Jialin Han , Xiaoshan Yu , Ziwen Wang , Hao Jiang , Haiping Ma , Xingyi Zhang , Geyong Min

Data augmentation (DA) has become a de facto solution to expand training data size for deep learning. With the proliferation of deep models for time series analysis, various time series DA techniques are proposed in the literature, e.g.,…

机器学习 · 计算机科学 2023-02-21 Muxi Chen , Zhijian Xu , Ailing Zeng , Qiang Xu

Large language models (LLMs) often struggle with balanced class accuracy in text classification tasks using in-context learning (ICL), hindering some practical uses due to user dissatisfaction or safety risks caused by misclassifications.…

计算与语言 · 计算机科学 2025-02-12 Ruixi Lin , Yang You

In the context of Federated Learning with heterogeneous data environments, local models tend to converge to their own local model optima during local training steps, deviating from the overall data distributions. Aggregation of these local…

机器学习 · 计算机科学 2025-10-29 Mortesa Hussaini , Jan Theiß , Anthony Stein

Federated learning (FL) has emerged as a new paradigm for privacy-preserving collaborative training. Under domain skew, the current FL approaches are biased and face two fairness problems. 1) Parameter Update Conflict: data disparity among…

机器学习 · 计算机科学 2024-05-28 Yuhang Chen , Wenke Huang , Mang Ye

The Context-Compliance Regime in Retrieval-Augmented Generation (RAG) occurs when retrieved context dominates the final answer even when it conflicts with the model's parametric knowledge. Accuracy alone does not reveal how retrieved…

计算与语言 · 计算机科学 2026-05-27 Yihang Chen , Pin Qian , Su Wang , Sipeng Zhang , Huan Xu , Shuhuai Lin , Xinpeng Wei

Fault diagnosis plays an essential role in reducing the maintenance costs of rotating machinery manufacturing systems. In many real applications of fault detection and diagnosis, data tend to be imbalanced, meaning that the number of…

机器学习 · 计算机科学 2022-03-30 Masoud Jalayer , Amin Kaboli , Carlotta Orsenigo , Carlo Vercellis

Reliable machine learning and statistical analysis rely on diverse, well-distributed training data. However, real-world datasets are often limited in size and exhibit underrepresentation across key subpopulations, leading to biased…

统计方法学 · 统计学 2025-07-15 Xinyu Tian , Xiaotong Shen

Diffusion models have demonstrated remarkable capabilities in generating high-quality samples and enhancing performance across diverse domains through Classifier-Free Guidance (CFG). However, the quality of generated samples is highly…

计算机视觉与模式识别 · 计算机科学 2025-08-21 Ao Chen , Lihe Ding , Tianfan Xue

Psychological defense mechanisms (PDMs) are unconscious cognitive processes that modulate how individuals perceive and respond to emotional distress. Automatically classifying PDMs from text is clinically valuable but severely hindered by…

计算与语言 · 计算机科学 2026-05-15 Hoang-Thuy-Duong Vu , Quoc-Cuong Pham , Huy-Hieu Pham

Personalized federated learning becomes a hot research topic that can learn a personalized learning model for each client. Existing personalized federated learning models prefer to aggregate similar clients with similar data distribution to…

机器学习 · 计算机科学 2024-03-15 Xu Yang , Jiyuan Feng , Songyue Guo , Ye Wang , Ye Ding , Binxing Fang , Qing Liao

Classifier-free guidance (CFG) has emerged as a pivotal advancement in text-to-image latent diffusion models, establishing itself as a cornerstone technique for achieving high-quality image synthesis. However, under high guidance weights,…

机器学习 · 计算机科学 2025-06-26 Cheng Jin , Zhenyu Xiao , Chutao Liu , Yuantao Gu

Deep learning models with large learning capacities often overfit to medical imaging datasets. This is because training sets are often relatively small due to the significant time and financial costs incurred in medical data acquisition and…

计算机视觉与模式识别 · 计算机科学 2021-03-16 Lok Hin Lee , Yuan Gao , J. Alison Noble

The tabular form constitutes the standard way of representing data in relational database systems and spreadsheets. But, similarly to other forms, tabular data suffers from class imbalance, a problem that causes serious performance…

机器学习 · 计算机科学 2025-08-04 Leonidas Akritidis , Panayiotis Bozanis

Much effort has been devoted to understanding the decisions of deep neural networks in recent years. A number of model-aware saliency methods were proposed to explain individual classification decisions by creating saliency maps. However,…

机器学习 · 计算机科学 2020-06-09 Jindong Gu , Volker Tresp

The aim is to identify faulty predicates which have strong effect on program failure. Statistical debugging techniques are amongst best methods for pinpointing defects within the program source code. However, they have some drawbacks. They…

软件工程 · 计算机科学 2016-12-20 Farid Feyzi , Esmaeel Nikravan , Saeed Parsa

Debugging is one of the most time-consuming and expensive tasks in software development. Several formula-based fault localization (FBFL) methods have been proposed, but they fail to guarantee a set of diagnoses across all failing tests or…

软件工程 · 计算机科学 2025-09-08 Pedro Orvalho , Mikoláš Janota , Vasco Manquinho