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Intelligent access point (AP) deployment remains challenging in next-generation wireless networks due to complex indoor geometries and signal propagation. We firstly benchmark general-purpose large language models (LLMs) as agentic…

Machine Learning · Computer Science 2026-02-03 Chenyang Yuan , Xiaoyuan Cheng

Diffusion Policies (DPs) have attracted attention for their ability to achieve significant accuracy improvements in various imitation learning tasks. However, DPs depend on Diffusion Models, which require multiple noise removal steps to…

Machine Learning · Computer Science 2025-07-30 Sodtavilan Odonchimed , Tatsuya Matsushima , Simon Holk , Yusuke Iwasawa , Yutaka Matsuo

This paper studies stable learning methods for generative models that enable high-quality data generation. Noise injection is commonly used to stabilize learning. However, selecting a suitable noise distribution is challenging.…

Machine Learning · Statistics 2024-10-29 Yoshitaka Koike , Takumi Nakagawa , Hiroki Waida , Takafumi Kanamori

The recently introduced Theory of the Adjacent Possible (TAP) is a model of combinatorial innovation aiming to explain the "hockey-stick" upward trend of human technological evolution, where an explosion in the number of produced items with…

Populations and Evolution · Quantitative Biology 2023-09-07 M. Andrecut

Diffusion-based planning has shown promising results in long-horizon, sparse-reward tasks by training trajectory diffusion models and conditioning the sampled trajectories using auxiliary guidance functions. However, due to their nature as…

Machine Learning · Computer Science 2023-10-31 Kyowoon Lee , Seongun Kim , Jaesik Choi

Out-of-distribution generalization in reinforcement learning is hard to diagnose when benchmark shifts mix dynamics, observations, goals, and rewards. We address this with Tape, a controlled benchmark that isolates latent rule-shift in…

Artificial Intelligence · Computer Science 2026-04-21 Enze Pan

Missing value imputation in machine learning is the task of estimating the missing values in the dataset accurately using available information. In this task, several deep generative modeling methods have been proposed and demonstrated…

Machine Learning · Computer Science 2023-03-14 Shuhan Zheng , Nontawat Charoenphakdee

Learning performance data describe correct and incorrect answers or problem-solving attempts in adaptive learning, such as in intelligent tutoring systems (ITSs). Learning performance data tend to be highly sparse (80\%\(\sim\)90\% missing…

Data augmentation is a critical contributing factor to the success of deep learning but heavily relies on prior domain knowledge which is not always available. Recent works on automatic data augmentation learn a policy to form a sequence of…

Machine Learning · Computer Science 2022-11-03 Kaiwen Yang , Yanchao Sun , Jiahao Su , Fengxiang He , Xinmei Tian , Furong Huang , Tianyi Zhou , Dacheng Tao

Data augmentation has long been a cornerstone for reducing overfitting in vision models, with methods like AutoAugment automating the design of task-specific augmentations. Recent advances in generative models, such as conditional diffusion…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Judah Goldfeder , Shreyes Kaliyur , Vaibhav Sourirajan , Patrick Minwan Puma , Philippe Martin Wyder , Yuhang Hu , Jiong Lin , Hod Lipson

Recent progress in imitation learning has been enabled by policy architectures that scale to complex visuomotor tasks, multimodal distributions, and large datasets. However, these methods often rely on learning from large amount of expert…

Robotics · Computer Science 2025-04-24 Amber Xie , Oleh Rybkin , Dorsa Sadigh , Chelsea Finn

Image and multimodal machine learning tasks are very challenging to solve in the case of poorly distributed data. In particular, data availability and privacy restrictions exacerbate these hurdles in the medical domain. The state of the art…

Computer Vision and Pattern Recognition · Computer Science 2025-02-03 Rafael Elberg , Denis Parra , Mircea Petrache

This paper presents Dual Action Policy (DAP), a novel approach to address the dynamics mismatch inherent in the sim-to-real gap of reinforcement learning. DAP uses a single policy to predict two sets of actions: one for maximizing task…

Machine Learning · Computer Science 2024-10-17 Ng Wen Zheng Terence , Chen Jianda

Data collection is often difficult in critical fields such as medicine, physics, and chemistry. As a result, classification methods usually perform poorly with these small datasets, leading to weak predictive performance. Increasing the…

Machine Learning · Computer Science 2024-11-07 Andrei Margeloiu , Xiangjian Jiang , Nikola Simidjievski , Mateja Jamnik

Contrastive learning is a model pre-training technique by first creating similar views of the original data, and then encouraging the data and its corresponding views to be close in the embedding space. Contrastive learning has witnessed…

Machine Learning · Computer Science 2024-05-01 Wei Cui , Rasa Hosseinzadeh , Junwei Ma , Tongzi Wu , Yi Sui , Keyvan Golestan

Diffusion models are widely used for generative tasks across domains. Given a pre-trained diffusion model, it is often desirable to fine-tune it further either to correct for errors in learning or to align with downstream applications.…

Data augmentation is crucial for pixel-wise annotation tasks like semantic segmentation, where labeling requires significant effort and intensive labor. Traditional methods, involving simple transformations such as rotations and flips,…

Computer Vision and Pattern Recognition · Computer Science 2025-09-05 Quang-Huy Che , Duc-Tri Le , Bich-Nga Pham , Duc-Khai Lam , Vinh-Tiep Nguyen

Recently, Vision-Language-Action models (VLA) have advanced robot imitation learning, but high data collection costs and limited demonstrations hinder generalization and current imitation learning methods struggle in out-of-distribution…

Robotics · Computer Science 2026-02-24 Shichao Fan , Quantao Yang , Yajie Liu , Kun Wu , Zhengping Che , Qingjie Liu , Min Wan

Tabular data is one of the most ubiquitous modalities, yet the literature on tabular generative foundation models is lagging far behind its text and vision counterparts. Creating such a model is hard, due to the heterogeneous feature spaces…

Machine Learning · Computer Science 2024-06-26 Boris van Breugel , Jonathan Crabbé , Rob Davis , Mihaela van der Schaar

In robotic visuomotor policy learning, diffusion-based models have achieved significant success in improving the accuracy of action trajectory generation compared to traditional autoregressive models. However, they suffer from inefficiency…

Robotics · Computer Science 2025-08-12 Zhefei Gong , Pengxiang Ding , Shangke Lyu , Siteng Huang , Mingyang Sun , Wei Zhao , Zhaoxin Fan , Donglin Wang