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In multiple-input multiple-output (MIMO) spatially multiplexing (SM) systems, achievable error rate performance is determined by signal detection strategy. The optimal maximum-likelihood detection (MLD) that exhaustively examines all symbol…

信息论 · 计算机科学 2015-03-17 Makoto Tanahashi , Hideki Ochiai

Stochastic Maximum Likelihood (SML) is a popular direction of arrival (DOA) estimation technique in array signal processing. It is a parametric method that jointly estimates signal and instrument noise by maximum likelihood, achieving…

应用统计 · 统计学 2021-02-04 Matthieu Simeoni , Paul Hurley

This paper deals with subspace estimation in the small sample size regime, where the number of samples is comparable in magnitude with the observation dimension. The traditional estimators, mostly based on the sample correlation matrix, are…

统计方法学 · 统计学 2015-06-19 Pascal Vallet , Xavier Mestre , Philippe Loubaton

For the problem of high-dimensional sparse linear regression, it is known that an $\ell_0$-based estimator can achieve a $1/n$ "fast" rate on the prediction error without any conditions on the design matrix, whereas in absence of…

统计理论 · 数学 2015-12-01 Yuchen Zhang , Martin J. Wainwright , Michael I. Jordan

Let there be given a contaminated list of n R^d-valued observations coming from g different, normally distributed populations with a common covariance matrix. We compute the ML-estimator with respect to a certain statistical model with n-r…

统计理论 · 数学 2007-06-13 Maria Teresa Gallegos , Gunter Ritter

We propose and investigate a new estimation method for the parameters of models consisting of smooth density functions on the positive half axis. The procedure is based on a recently introduced characterization result for the respective…

统计理论 · 数学 2021-06-16 Steffen Betsch , Bruno Ebner , Bernhard Klar

Recently, a Distribution Separation Method (DSM) is proposed for relevant feedback in information retrieval, which aims to approximate the true relevance distribution by separating a seed irrelevance distribution from the mixture one. While…

信息检索 · 计算机科学 2015-10-19 Peng Zhang , Qian Yu , Yuexian Hou , Dawei Song , Jingfei Li , Bin Hu

Causal discovery automates the learning of causal Bayesian networks from data and has been of active interest from their beginning. With the sourcing of large data sets off the internet, interest in scaling up to very large data sets has…

机器学习 · 计算机科学 2021-07-20 Yang Li , Kevin B Korb , Lloyd Allison

Probability estimation is an elementary building block of every statistical data compression algorithm. In practice probability estimation is often based on relative letter frequencies which get scaled down, when their sum is too large.…

信息论 · 计算机科学 2015-01-12 Christopher Mattern

Targeted maximum likelihood estimation (TMLE) is a general method for estimating parameters in semiparametric and nonparametric models. Each iteration of TMLE involves fitting a parametric submodel that targets the parameter of interest. We…

统计方法学 · 统计学 2014-06-03 Iván Díaz , Michael Rosenblum

Deep metric learning (DML) aims to minimize empirical expected loss of the pairwise intra-/inter- class proximity violations in the embedding space. We relate DML to feasibility problem of finite chance constraints. We show that minimizer…

计算机视觉与模式识别 · 计算机科学 2023-09-08 Yeti Z. Gurbuz , Ogul Can , A. Aydin Alatan

In this paper a useful subfamily of the exponential family has been considered. The ML estimation based on upper record values has been calculated for the parameter, Cumulative Density Function, and Probability Density Function of the…

统计理论 · 数学 2017-11-06 S. D. Gore , S. Hosseini , P. Nasiri

Learning from data in the presence of outliers is a fundamental problem in statistics. Until recently, no computationally efficient algorithms were known to compute the mean of a high dimensional distribution under natural assumptions in…

数据结构与算法 · 计算机科学 2021-01-22 Yeshwanth Cherapanamjeri , Sidhanth Mohanty , Morris Yau

In this correspondence, we focus on the performance analysis of the widely-used minimum description length (MDL) source enumeration technique in array processing. Unfortunately, available theoretical analysis exhibit deviation from the…

We address the problem of estimating a random vector X from two sets of measurements Y and Z, such that the estimator is linear in Y. We show that the partially linear minimum mean squared error (PLMMSE) estimator does not require knowing…

信息论 · 计算机科学 2015-05-27 Tomer Michaeli , Daniel Sigalov , Yonina C. Eldar

We investigate the problem of best policy identification in discounted linear Markov Decision Processes in the fixed confidence setting under a generative model. We first derive an instance-specific lower bound on the expected number of…

机器学习 · 计算机科学 2022-08-12 Jerome Taupin , Yassir Jedra , Alexandre Proutiere

We study the fundamental problem of estimating the mean of a $d$-dimensional distribution with covariance $\Sigma \preccurlyeq \sigma^2 I_d$ given $n$ samples. When $d = 1$, \cite{catoni} showed an estimator with error $(1+o(1)) \cdot…

统计理论 · 数学 2024-02-20 Shivam Gupta , Samuel B. Hopkins , Eric Price

This paper defines multidimensional sequential optimization numbers and prove that the unsigned Stirling numbers of first kind are 1-dimensional sequential optimization numbers. This paper gives a recurrence formula and an upper bound of…

数据结构与算法 · 计算机科学 2022-06-16 Zile Hui

We define a Maximum Likelihood (ML for short) estimator for the correlation function, {\xi}, that uses the same pair counting observables (D, R, DD, DR, RR) as the standard Landy and Szalay (1993, LS for short) estimator. The ML estimator…

宇宙学与河外天体物理 · 物理学 2013-11-27 Eric Jones Baxter , Eduardo Rozo

This paper develops an algorithmic approach for obtaining approximate, numerical estimates of the sizes of subcodes of Reed-Muller (RM) codes, all of the codewords in which satisfy a given constraint. Our algorithm is based on a statistical…

信息论 · 计算机科学 2023-09-20 V. Arvind Rameshwar , Shreyas Jain , Navin Kashyap