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Semantic segmentation models, while effective for in-distribution categories, face challenges in real-world deployment due to encountering out-of-distribution (OoD) objects. Detecting these OoD objects is crucial for safety-critical…

计算机视觉与模式识别 · 计算机科学 2024-03-29 Wenjie Zhao , Jia Li , Xin Dong , Yu Xiang , Yunhui Guo

Large Language Models (LLMs) fine-tuning techniques not only improve the adaptability to diverse downstream tasks, but also mitigate adverse effects of model quantization. Despite this, conventional quantization suffers from its structural…

机器学习 · 计算机科学 2025-11-18 Shaoyuan Chen , Zhixuan Chen , Dawei Yang , Zhihang Yuan , Qiang Wu

Metric $k$-center clustering is a fundamental unsupervised learning primitive. Although widely used, this primitive is heavily affected by noise in the data, so that a more sensible variant seeks for the best solution that disregards a…

机器学习 · 计算机科学 2022-02-28 Paolo Pellizzoni , Andrea Pietracaprina , Geppino Pucci

We propose OASIS, an outlier- and sink-aware technique built on inter-layer null signaling. As AttnResidual architectures introduce an additional depth-wise normalization channel, they improve inter-layer routing flexibility but also…

How can we detect outliers, both scattered and clustered, and also explicitly assign them to respective micro-clusters, without knowing apriori how many micro-clusters exist? How can we perform both tasks in-house, i.e., without any…

机器学习 · 计算机科学 2022-10-18 Shuli Jiang , Robson Leonardo Ferreira Cordeiro , Leman Akoglu

Traditional machine learning models focus on achieving good performance on the overall training distribution, but they often underperform on minority groups. Existing methods can improve the worst-group performance, but they can have…

机器学习 · 计算机科学 2022-10-14 Yuchen Zeng , Kristjan Greenewald , Kangwook Lee , Justin Solomon , Mikhail Yurochkin

Out-of-system (OoS) interference is a potential limitation for distributed networks that operate in unlicensed spectrum or in a spectrum sharing scenario. The OoS interference differs from the in-system interference in that OoS signals and…

信息论 · 计算机科学 2024-05-08 Zakir Hussain Shaik , Erik G. Larsson

Out-of-distribution (OOD) detection is crucial for deploying reliable machine learning models in open-world applications. Recent advances in CLIP-based OOD detection have shown promising results via regularizing prompt tuning with OOD…

计算机视觉与模式识别 · 计算机科学 2024-11-07 Geng Yu , Jianing Zhu , Jiangchao Yao , Bo Han

High-dimensional data poses unique challenges in outlier detection process. Most of the existing algorithms fail to properly address the issues stemming from a large number of features. In particular, outlier detection algorithms perform…

机器学习 · 计算机科学 2020-09-22 Firuz Kamalov , Ho Hon Leung

Over-the-air computation (OAC) leverages the physical superposition property of wireless multiple access channels (MACs) to compute functions while communication occurs, enabling scalable and low-latency processing in distributed networks.…

信号处理 · 电气工程与系统科学 2025-06-24 Saeed Razavikia , Carlo Fischione

Diffusion models can effectively generate high-quality images. However, as they scale, rising memory demands and higher latency pose substantial deployment challenges. In this work, we aim to accelerate diffusion models by quantizing their…

计算机视觉与模式识别 · 计算机科学 2025-11-11 Muyang Li , Yujun Lin , Zhekai Zhang , Tianle Cai , Xiuyu Li , Junxian Guo , Enze Xie , Chenlin Meng , Jun-Yan Zhu , Song Han

The ability to detect out-of-distribution (OOD) inputs is fundamental to safe deployment of machine learning systems. Yet, current methods often rely on feature representations that are optimised solely for classification accuracy,…

机器学习 · 计算机科学 2026-05-22 Rahul D Ray

Deep neural networks for image classification often exhibit overconfidence on out-of-distribution (OOD) samples. To address this, we introduce Geometrically Constrained Outlier Synthesis (GCOS), a training-time regularization framework…

机器学习 · 计算机科学 2026-05-27 Daniil Karzanov , Marcin Detyniecki

Efficient and effective Out-of-Distribution (OOD) detection is essential for the safe deployment of AI systems. Existing feature space methods, while effective, often incur significant computational overhead due to their reliance on…

机器学习 · 计算机科学 2024-06-05 Litian Liu , Yao Qin

It has become routine in neuroscience studies to measure brain networks for different individuals using neuroimaging. These networks are typically expressed as adjacency matrices, with each cell containing a summary of connectivity between…

统计方法学 · 统计学 2022-06-30 Pritam Dey , Zhengwu Zhang , David B. Dunson

Detecting out-of-distribution (OOD) inputs is critical for safely deploying deep learning models in an open-world setting. However, existing OOD detection solutions can be brittle in the open world, facing various types of adversarial OOD…

机器学习 · 计算机科学 2021-07-01 Jiefeng Chen , Yixuan Li , Xi Wu , Yingyu Liang , Somesh Jha

We consider the problem of clustering noisy high-dimensional data points into a union of low-dimensional subspaces and a set of outliers. The number of subspaces, their dimensions, and their orientations are unknown. A probabilistic…

信息论 · 计算机科学 2013-07-19 Reinhard Heckel , Helmut Bölcskei

Deep neural networks have attained remarkable performance when applied to data that comes from the same distribution as that of the training set, but can significantly degrade otherwise. Therefore, detecting whether an example is…

计算机视觉与模式识别 · 计算机科学 2020-04-02 Yen-Chang Hsu , Yilin Shen , Hongxia Jin , Zsolt Kira

Functional data present unique challenges for clustering due to their infinite-dimensional nature and potential sensitivity to outliers. An extension of the OCLUST algorithm to the functional setting is proposed to address these issues. The…

机器学习 · 统计学 2025-08-06 Katharine M. Clark , Paul D. McNicholas

The reliability of supervised classifiers is severely hampered by their limitations in dealing with unexpected inputs, leading to great interest in out-of-distribution (OOD) detection. Recently, OOD detectors trained on synthetic outliers,…

计算机视觉与模式识别 · 计算机科学 2024-11-22 Lars Doorenbos , Raphael Sznitman , Pablo Márquez-Neila