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This paper gives a precise characterization of the fundamental limits of adaptive sensing for diverse estimation and testing problems concerning sparse signals. We consider in particular the setting introduced in (IEEE Trans. Inform. Theory…

统计理论 · 数学 2014-10-16 Rui M. Castro

This work considers distributed sensing and transmission of sporadic random samples. Lower bounds are derived for the reconstruction error of a single normally or uniformly-distributed finite-dimensional vector imperfectly measured by a…

信息论 · 计算机科学 2015-11-20 Ayşe Ünsal , Raymond Knopp

The leading workhorse of anomaly (and attack) detection in the literature has been residual-based detectors, where the residual is the discrepancy between the observed output provided by the sensors (inclusive of any tampering along the…

系统与控制 · 电气工程与系统科学 2020-04-17 Navid Hashemi , Eduardo Verdugo German , Jonatan Pena Ramirez , Justin Ruths

The environmental perturbation on atoms is the key factor restricting the performance of atomic frequency standards, especially in long term scale. In this letter, we demonstrate a real-time noise distinguish operation of atomic clocks. The…

原子物理 · 物理学 2016-04-19 Richang Dong , Jinda Lin , Rong Wei , Wenli Wang , Fan Zou , Yuanbo Du , Tingting Chen , Yuzhu Wang

Fluctuations in light absorption by atoms are observed by applying laser light on rubidium atoms and measuring the transmitted light intensity fluctuations. These fluctuations are spontaneous noise, which are generic to photon atom…

原子物理 · 物理学 2015-06-12 Takahisa Mitsui , Kenichiro Aoki

Some systems cannot be predicted by classical theories and it is required the development of combined deterministic and stochastic theories that make used of noise for dynamical prediction. Noise is not always an interfering signal which…

适应与自组织系统 · 物理学 2019-05-14 Alexandra Pinto Castellanos

A principal decides whether to approve an agent based on a noisy signal (e.g., test scores) generated by the agent. High-quality agents can produce high signals on average at lower cost, but the realizations are subject to noise that…

理论经济学 · 经济学 2026-05-14 Shuhua Si , Yangfan Zhou

Although microarrays are routine analysis tools in biomedical research, they still yield noisy output that often requires experimental confirmation. Many studies have aimed at optimizing probe design and statistical analysis to tackle this…

定量方法 · 定量生物学 2015-06-15 Alex E Pozhitkov , Peter A Noble , Jaroslaw Bryk , Diethard Tautz

It is widely known in the machine learning community that class noise can be (and often is) detrimental to inducing a model of the data. Many current approaches use a single, often biased, measurement to determine if an instance is noisy. A…

机器学习 · 统计学 2014-03-11 Michael R. Smith , Tony Martinez

While our world is filled with its own natural sounds that we can't resist enjoying, it is also chock-full of other sounds that can be irritating, this is noise. Noise not only influences the working efficiency but also the human's health.…

声音 · 计算机科学 2023-11-02 kai Wu , Yuanyuan Chen

Newtonian noise limits the low-frequency sensitivity of ground-based gravitational wave detectors. While seismometers and geophones are commonly employed to monitor ground motion for Newtonian noise cancellation, their limited spatial…

A sensor network is used for distributed joint mean and variance estimation, in a single time snapshot. Sensors observe a signal embedded in noise, which are phase modulated using a constant-modulus scheme and transmitted over a Gaussian…

信息论 · 计算机科学 2016-11-17 Mahesh K. Banavar , Cihan Tepedelenlioglu , Andreas Spanias

The highest current estimates for the amount of noise a quantum computer can tolerate are based on fault-tolerance schemes relying heavily on postselecting on no detected errors. However, there has been no proof that these schemes give even…

量子物理 · 物理学 2012-06-22 Ben W. Reichardt

In this note we develop a prelimit analysis of performance measures for importance sampling schemes related to small noise diffusion processes. In importance sampling the performance of any change of measure is characterized by its second…

概率论 · 数学 2014-07-30 Konstantinos Spiliopoulos

Noise is a major issue while transferring images through all kinds of electronic communication. One of the most common noise in electronic communication is an impulse noise which is caused by unstable voltage. In this paper, the comparison…

计算机视觉与模式识别 · 计算机科学 2014-10-09 Suman Shrestha

Suppose that we wish to estimate a vector $\mathbf{x} \in \mathbb{C}^n$ from a small number of noisy linear measurements of the form $\mathbf{y} = \mathbf{A x} + \mathbf{z}$, where $\mathbf{z}$ represents measurement noise. When the vector…

信息论 · 计算机科学 2016-09-21 Mark A. Davenport , Andrew K. Massimino , Deanna Needell , Tina Woolf

Sensor selection refers to the problem of intelligently selecting a small subset of a collection of available sensors to reduce the sensing cost while preserving signal acquisition performance. The majority of sensor selection algorithms…

其他计算机科学 · 计算机科学 2017-02-27 Amirali Aghazadeh , Mohammad Golbabaee , Andrew S. Lan , Richard G. Baraniuk

We propose to use the phenomenon of resonant tunneling for the detection of noise. The main idea of this method relies on the effect of homogeneous broadening of the resonant tunneling peak induced by the emission and absorption of…

介观与纳米尺度物理 · 物理学 2009-11-13 Eugene V. Sukhorukov , Jonathan Edwards

We determine a fundamental upper bound on the performance of any adaptive protocol for discrimination or estimation of a channel which has an unknown parameter encoded in the state of its environment. Since our approach relies on the…

量子物理 · 物理学 2016-11-29 Masahiro Takeoka , Mark M. Wilde

Humans and other animals base their decisions on noisy sensory input. Much work has therefore been devoted to understanding the computations that underly such decisions. The problem has been studied in a variety of tasks and with stimuli of…

神经元与认知 · 定量生物学 2015-03-05 Manisha Bhardwaj , Sam Carroll , Wei Ji Ma , Kresimir Josic