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Bayesian inference for inverse problems hinges critically on the choice of priors. In the absence of specific prior information, population-level distributions can serve as effective priors for parameters of interest. With the advent of…

天体物理仪器与方法 · 物理学 2025-02-11 Gabriel Missael Barco , Alexandre Adam , Connor Stone , Yashar Hezaveh , Laurence Perreault-Levasseur

Federated learning brings potential benefits of faster learning, better solutions, and a greater propensity to transfer when heterogeneous data from different parties increases diversity. However, because federated learning tasks tend to be…

机器学习 · 计算机科学 2021-01-18 Duc Thien Nguyen , Shiau Hoong Lim , Laura Wynter , Desmond Cai

We study the problem of selecting limited features to observe such that models trained on them can perform well simultaneously across multiple subpopulations. This problem has applications in settings where collecting each feature is…

机器学习 · 计算机科学 2025-10-27 Maitreyi Swaroop , Tamar Krishnamurti , Bryan Wilder

Data fusion has played an important role in data mining because high-quality data is required in a lot of applications. As on-line data may be out-of-date and errors in the data may propagate with copying and referring between sources, it…

数据库 · 计算机科学 2017-02-03 Yunfan Chen , Lei Chen , Chen Jason Zhang

Neural networks have proven successful at learning from complex data distributions by acting as universal function approximators. However, they are often overconfident in their predictions, which leads to inaccurate and miscalibrated…

机器学习 · 计算机科学 2021-02-23 Jeffrey Willette , Juho Lee , Sung Ju Hwang

Current methods for sequence tagging, a core task in NLP, are data hungry, which motivates the use of crowdsourcing as a cheap way to obtain labelled data. However, annotators are often unreliable and current aggregation methods cannot…

计算与语言 · 计算机科学 2019-09-09 Edwin Simpson , Iryna Gurevych

We consider the problem of cost-optimal utilization of a crowdsourcing platform for binary, unsupervised classification of a collection of items, given a prescribed error threshold. Workers on the crowdsourcing platform are assumed to be…

机器学习 · 计算机科学 2022-07-06 Yashvardhan Didwania , Jayakrishnan Nair , N. Hemachandra

The distributed coordination of robot teams performing complex tasks is challenging to formulate. The different aspects of a complete task such as local planning for obstacle avoidance, global goal coordination and collaborative mapping are…

机器人学 · 计算机科学 2023-10-04 Aalok Patwardhan , Andrew J. Davison

Despite exceptional predictive performance of Deep sequence models (DSMs), the main concern of their deployment centers around the lack of uncertainty awareness. In contrast, probabilistic models quantify the uncertainty associated with…

机器学习 · 计算机科学 2026-03-03 Wenlong Chen

Crowdsourcing systems, in which numerous tasks are electronically distributed to numerous "information piece-workers", have emerged as an effective paradigm for human-powered solving of large scale problems in domains such as image…

机器学习 · 计算机科学 2013-03-27 David R. Karger , Sewoong Oh , Devavrat Shah

Large multilayer neural networks trained with backpropagation have recently achieved state-of-the-art results in a wide range of problems. However, using backprop for neural net learning still has some disadvantages, e.g., having to tune a…

机器学习 · 统计学 2015-07-16 José Miguel Hernández-Lobato , Ryan P. Adams

Crowdsourcing is an effective method to collect data by employing distributed human population. Researchers introduce appropriate reward mechanisms to incentivize agents to report accurately. In particular, this paper focuses on Peer-Based…

计算机科学与博弈论 · 计算机科学 2021-12-23 Samhita Kanaparthy , Sankarshan Damle , Sujit Gujar

Recent advances in communications, mobile computing, and artificial intelligence have greatly expanded the application space of intelligent distributed sensor networks. This in turn motivates the development of generalized Bayesian…

机器人学 · 计算机科学 2013-08-15 Nisar Ahmed , Tsung-Lin Yang , Mark Campbell

Crowdsourcing provides a practical way to obtain large amounts of labeled data at a low cost. However, the annotation quality of annotators varies considerably, which imposes new challenges in learning a high-quality model from the…

机器学习 · 计算机科学 2021-06-15 Zhendong Chu , Jing Ma , Hongning Wang

This paper considers the noisy group testing problem where among a large population of items some are defective. The goal is to identify all defective items by testing groups of items, with the minimum possible number of tests. The focus of…

信息论 · 计算机科学 2021-10-20 Esmaeil Karimi , Anoosheh Heidarzadeh , Krishna R. Narayanan , Alex Sprintson

A key challenge in crowdsourcing is inferring the ground truth from noisy and unreliable data. To do so, existing approaches rely on collecting redundant information from the crowd, and aggregating it with some probabilistic method.…

机器学习 · 计算机科学 2019-11-14 Edoardo Manino , Long Tran-Thanh , Nicholas R. Jennings

Crowd counting presents enormous challenges in the form of large variation in scales within images and across the dataset. These issues are further exacerbated in highly congested scenes. Approaches based on straightforward fusion of…

计算机视觉与模式识别 · 计算机科学 2019-08-30 Vishwanath A Sindagi , Vishal M. Patel

Crowdsourcing is a strategy to categorize data through the contribution of many individuals. A wide range of theoretical and algorithmic contributions are based on the model of Dawid and Skene [1]. Recently it was shown in [2,3] that, in…

机器学习 · 统计学 2020-04-02 Christian Schmidt , Lenka Zdeborová

Crowdsourcing has emerged as an alternative solution for collecting large scale labels. However, the majority of recruited workers are not domain experts, so their contributed labels could be noisy. In this paper, we propose a two-stage…

统计方法学 · 统计学 2023-09-28 Qi Xu , Yubai Yuan , Junhui Wang , Annie Qu

Scholars have increasingly investigated "crowdsourcing" as an alternative to expert-based judgment or purely data-driven approaches to predicting the future. Under certain conditions, scholars have found that crowdsourcing can outperform…

物理与社会 · 物理学 2017-12-12 Daniel Martin Katz , Michael James Bommarito , Josh Blackman