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Stationary points embedded in the derivatives are often critical for a model to be interpretable and may be considered as key features of interest in many applications. We propose a semiparametric Bayesian model to efficiently infer the…

统计方法学 · 统计学 2024-06-11 Cheng-Han Yu , Meng Li , Colin Noe , Simon Fischer-Baum , Marina Vannucci

Reliable uncertainty quantification is crucial for trustworthy decision-making and the deployment of AI models in medical imaging. While prior work has explored the ability of neural networks to quantify predictive, epistemic, and aleatoric…

机器学习 · 统计学 2025-08-07 Simon Baur , Wojciech Samek , Jackie Ma

For tackling the task of 2D human pose estimation, the great majority of the recent methods regard this task as a heatmap estimation problem, and optimize the heatmap prediction using the Gaussian-smoothed heatmap as the optimization…

计算机视觉与模式识别 · 计算机科学 2022-10-05 Haoxuan Qu , Li Xu , Yujun Cai , Lin Geng Foo , Jun Liu

Given a graph with a subset of labeled nodes, we are interested in the quality of the averaging estimator which for an unlabeled node predicts the average of the observations of its labeled neighbors. We rigorously study concentration…

机器学习 · 统计学 2023-04-05 M. Gjorgjevski

The problem of source localization with ad hoc microphone networks in noisy and reverberant enclosures, given a training set of prerecorded measurements, is addressed in this paper. The training set is assumed to consist of a limited number…

声音 · 计算机科学 2016-10-18 Bracha Laufer-Goldshtein , Ronen Talmon , Sharon Gannot

Recently, deep learning-based facial landmark detection has achieved significant improvement. However, the semantic ambiguity problem degrades detection performance. Specifically, the semantic ambiguity causes inconsistent annotation and…

计算机视觉与模式识别 · 计算机科学 2023-06-06 Zhenglin Zhou , Huaxia Li , Hong Liu , Nanyang Wang , Gang Yu , Rongrong Ji

Parameter identification problems are formulated in a probabilistic language, where the randomness reflects the uncertainty about the knowledge of the true values. This setting allows conceptually easily to incorporate new information, e.g.…

Selecting an effective training signal for machine learning tasks is difficult: expert annotations are expensive, and crowd-sourced annotations may not be reliable. Recent work has demonstrated that learning from a distribution over labels…

计算与语言 · 计算机科学 2025-04-23 Dustin Wright , Isabelle Augenstein

This paper proposes a fast and scalable method for uncertainty quantification of machine learning models' predictions. First, we show the principled way to measure the uncertainty of predictions for a classifier based on Nadaraya-Watson's…

The work discusses the use of machine learning algorithms for anomaly detection in medical image analysis and how the performance of these algorithms depends on the number of annotators and the quality of labels. To address the issue of…

计算机视觉与模式识别 · 计算机科学 2023-03-30 Hieu H. Pham , Khiem H. Le , Tuan V. Tran , Ha Q. Nguyen

Uncertainty estimation has been extensively studied in recent literature, which can usually be classified as aleatoric uncertainty and epistemic uncertainty. In current aleatoric uncertainty estimation frameworks, it is often neglected that…

计算机视觉与模式识别 · 计算机科学 2021-11-23 Jing Zhang , Yuchao Dai , Mehrtash Harandi , Yiran Zhong , Nick Barnes , Richard Hartley

Emerging wearable sensors have enabled the unprecedented ability to continuously monitor human activities for healthcare purposes. However, with so many ambient sensors collecting different measurements, it becomes important not only to…

机器学习 · 计算机科学 2019-01-09 Randy Ardywibowo , Guang Zhao , Zhangyang Wang , Bobak Mortazavi , Shuai Huang , Xiaoning Qian

Ensemble learning is a mainstay in modern data science practice. Conventional ensemble algorithms assign to base models a set of deterministic, constant model weights that (1) do not fully account for individual models' varying accuracy…

统计方法学 · 统计学 2019-04-02 Jeremiah Zhe Liu , John Paisley , Marianthi-Anna Kioumourtzoglou , Brent A. Coull

The prevalence of location-based social networks (LBSNs) has eased the understanding of human mobility patterns. Knowledge of human dynamics can aid in various ways like urban planning, managing traffic congestion, personalized…

社会与信息网络 · 计算机科学 2020-09-09 Manisha Dubey , P. K. Srijith , Maunendra Sankar Desarkar

The article focuses on determining the predictive uncertainty of a model on the example of atrial fibrillation detection problem by a single-lead ECG signal. To this end, the model predicts parameters of the beta distribution over class…

计算机视觉与模式识别 · 计算机科学 2018-08-08 Alexander Kuvaev , Roman Khudorozhkov

Scientists need to compare the support for models based on observed phenomena. The main goal of the evidential paradigm is to quantify the strength of evidence in the data for a reference model relative to an alternative model. This is done…

统计方法学 · 统计学 2021-03-23 Mark L. Taper , Subhash R Lele , José-Miguel Ponciano , Brian Dennis , Christopher L Jerde

Nearly all spatial reasoning problems involve uncertainty of one sort or another. Uncertainty arises due to the inaccuracies of sensors used in measuring distances and angles. We refer to this as directional uncertainty. Uncertainty also…

人工智能 · 计算机科学 2013-04-08 Kenneth Basye , Thomas L. Dean

Heatmap-based anatomical landmark detection is still facing two unresolved challenges: 1) inability to accurately evaluate the distribution of heatmap; 2) inability to effectively exploit global spatial structure information. To address the…

计算机视觉与模式识别 · 计算机科学 2023-05-22 Qikui Zhu , Yihui Bi , Danxin Wang , Xiangpeng Chu , Jie Chen , Yanqing Wang

We present a Bayesian perspective on quantifying the uncertainty of graph signals estimated or reconstructed from imperfect observations. We show that many conventional methods of graph signal estimation, reconstruction and imputation, can…

信号处理 · 电气工程与系统科学 2025-05-22 Lennard Rompelberg , Michael T. Schaub

Capturing and annotating Sign language datasets is a time consuming and costly process. Current datasets are orders of magnitude too small to successfully train unconstrained \acf{slt} models. As a result, research has turned to TV…

计算与语言 · 计算机科学 2023-08-09 Harry Walsh , Ozge Mercanoglu Sincan , Ben Saunders , Richard Bowden
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