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Wireless sensor networks offer the potential to span and monitor large geographical areas inexpensively. Sensors, however, have significant power constraint (battery life), making communication very expensive. Another important issue in the…

分布式、并行与集群计算 · 计算机科学 2007-05-23 Nisheeth Shrivastava , Chiranjeeb Buragohain , Divyakant Agrawal , Subhash Suri

Small chemical sensors are subjected to adsorption-desorption fluctuations which usually considered as noise contaminating useful signal. Based on temporal properties of this noise, it is shown that it can be made useful if proper…

综合物理 · 物理学 2022-07-20 Alexander K. Vidybida

Balancing efficiency of bandwidth use and complexity of detection involves choosing a suitable load for a multi-access channel. In the case of synchronous CDMA, with random codes, it is possible to demonstrate the existence of a threshold…

信息论 · 计算机科学 2009-05-22 Jack Raymond

The reliable detection of environmental molecules in the presence of noise is an important cellular function, yet the underlying computational mechanisms are not well understood. We introduce a model of two interacting sensors which allows…

生物物理 · 物理学 2020-02-25 Vudtiwat Ngampruetikorn , David J. Schwab , Greg J. Stephens

Label noise is a common problem in real-world datasets, affecting both model training and validation. Clean data are essential for achieving strong performance and ensuring reliable evaluation. While various techniques have been proposed to…

机器学习 · 计算机科学 2025-10-21 Henrique Pickler , Jorge K. S. Kamassury , Danilo Silva

An energy efficient use of large scale sensor networks necessitates activating a subset of possible sensors for estimation at a fusion center. The problem is inherently combinatorial; to this end, a set of iterative, randomized algorithms…

信息论 · 计算机科学 2017-09-13 Arpan Chattopadhyay , Urbashi Mitra

This paper considers a sequential estimation and sensor scheduling problem with one sensor and one estimator. The sensor makes sequential observations about the state of an underlying memoryless stochastic process, and makes a decision as…

系统与控制 · 计算机科学 2016-11-17 Xiaobin Gao , Emrah Akyol , Tamer Basar

In this paper, we address the problem of simultaneous classification and estimation of hidden parameters in a sensor network with communications constraints. In particular, we consider a network of noisy sensors which measure a common…

多智能体系统 · 计算机科学 2012-06-19 Fabio Fagnani , Sophie M. Fosson , Chiara Ravazzi

Reliably labelling data typically requires annotations from multiple human workers. However, humans are far from being perfect. Hence, it is a common practice to aggregate labels gathered from multiple annotators to make a more confident…

In this work, we analyze the noisy importance sampling (IS), i.e., IS working with noisy evaluations of the target density. We present the general framework and derive optimal proposal densities for noisy IS estimators. The optimal…

机器学习 · 统计学 2022-01-24 Fernando Llorente , Luca Martino , Jesse Read , David Delgado-Gómez

Ensemble learning improves classification performance by combining multiple base classifiers. While increasing the number of classifiers generally enhances accuracy, excessively large ensembles can lead to computational inefficiency and…

机器学习 · 计算机科学 2025-11-27 Enes Bektas , Fazli Can

Many times the nodes of a complex network, whether deliberately or not, are aggregated for technical, ethical, legal limitations or privacy reasons. A common example is the geographic position: one may uncover communities in a network of…

In order to scale standard Gaussian process (GP) regression to large-scale datasets, aggregation models employ factorized training process and then combine predictions from distributed experts. The state-of-the-art aggregation models,…

机器学习 · 统计学 2018-06-05 Haitao Liu , Jianfei Cai , Yi Wang , Yew-Soon Ong

Crowdsourcing is a mechanism by means of which groups of people are able to execute a task by sharing ideas, efforts and resources. Thanks to the online technologies, crowdsourcing has become in the last decade an even more utilized process…

物理与社会 · 物理学 2022-03-16 Daniele Vilone

We explore a model of non-Bayesian information aggregation in networks. Agents non-cooperatively choose among Friedkin-Johnsen type aggregation rules to maximize payoffs. The DeGroot rule is chosen in equilibrium if and only if there is…

综合经济学 · 经济学 2023-11-15 Abhijit Banerjee , Olivier Compte

We consider the task of multiple parameter estimation in the presence of strong correlated noise with a network of distributed sensors. We study how to find and improve noise-insensitive strategies. We show that sequentially probing GHZ…

量子物理 · 物理学 2024-07-02 Arne Hamann , Pavel Sekatski , Wolfgang Dür

Ensemble Learning methods combine multiple algorithms performing the same task to build a group with superior quality. These systems are well adapted to the distributed setup, where each peer or machine of the network hosts one algorithm…

机器学习 · 计算机科学 2021-10-19 Gaëlle Candel , David Naccache

Randomized experiments are the gold standard for evaluating the effects of changes to real-world systems. Data in these tests may be difficult to collect and outcomes may have high variance, resulting in potentially large measurement error.…

机器学习 · 统计学 2018-06-27 Benjamin Letham , Brian Karrer , Guilherme Ottoni , Eytan Bakshy

We study how the amount of correlation between observations collected by distinct sensors/learners affects data collection and collaboration strategies by analyzing Fisher information and the Cramer-Rao bound. In particular, we consider a…

分布式、并行与集群计算 · 计算机科学 2022-06-02 Yu-Zhen Janice Chen , Daniel S. Menasche , Don Towsley

Whether Large Language Models (LLMs) can outperform crowdsourcing on the data annotation task is attracting interest recently. Some works verified this issue with the average performance of individual crowd workers and LLM workers on some…

计算与语言 · 计算机科学 2024-01-19 Jiyi Li