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We consider the well-studied problem of decomposing a vector time series signal into components with different characteristics, such as smooth, periodic, nonnegative, or sparse. We describe a simple and general framework in which the…

机器学习 · 计算机科学 2022-09-21 Bennet E. Meyers , Stephen P. Boyd

To address the common problem of high dimensionality in tensor regressions, we introduce a generalized tensor random projection method that embeds high-dimensional tensor-valued covariates into low-dimensional subspaces with minimal loss of…

统计方法学 · 统计学 2025-10-03 Roberto Casarin , Radu Craiu , Qing Wang

We present a flexible Bayesian semiparametric mixed model for longitudinal data analysis in the presence of potentially high-dimensional categorical covariates. Building on a novel hidden Markov tensor decomposition technique, our proposed…

统计方法学 · 统计学 2022-08-05 Giorgio Paulon , Peter Müller , Abhra Sarkar

We consider nonparametric prediction with multiple covariates, in particular categorical or functional predictors, or a mixture of both. The method proposed bases on an extension of the Nadaraya-Watson estimator where a kernel function is…

统计方法学 · 统计学 2022-08-05 Leonie Selk , Jan Gertheiss

Refining one's hypotheses in the light of data is a common scientific practice; however, the dependency on the data introduces selection bias and can lead to specious statistical analysis. An approach for addressing this is via conditioning…

Most machine learning models for structured data encode the structural knowledge of a node by leveraging simple aggregation functions (in neural models, typically a weighted sum) of the information in the node's neighbourhood. Nevertheless,…

机器学习 · 计算机科学 2020-06-18 Daniele Castellana , Davide Bacciu

Varying-coefficient functional linear models consider the relationship between a response and a predictor, where the response depends not only the predictor but also an exogenous variable. It then accounts for the relation of the predictors…

统计方法学 · 统计学 2022-03-22 Hidetoshi Matsui

In this paper, we focus on developing randomized algorithms for the computation of low multilinear rank approximations of tensors based on the random projection and the singular value decomposition. Following the theory of the singular…

数值分析 · 数学 2020-03-20 Maolin Che , Yimin Wei , Hong Yan

We propose a deep generative approach to sampling from a conditional distribution based on a unified formulation of conditional distribution and generalized nonparametric regression function using the noise-outsourcing lemma. The proposed…

统计理论 · 数学 2021-10-22 Xingyu Zhou , Yuling Jiao , Jin Liu , Jian Huang

We consider the problem of learning mixtures of generalized linear models (GLM) which arise in classification and regression problems. Typical learning approaches such as expectation maximization (EM) or variational Bayes can get stuck in…

机器学习 · 计算机科学 2016-01-14 Hanie Sedghi , Majid Janzamin , Anima Anandkumar

Due to their flexibility and predictive performance, machine-learning based regression methods have become an important tool for predictive modeling and forecasting. However, most methods focus on estimating the conditional mean or specific…

机器学习 · 统计学 2019-03-15 Rui Li , Howard D. Bondell , Brian J. Reich

To ensure interpretability of extracted sources in tensor decomposition, we introduce in this paper a dictionary-based tensor canonical polyadic decomposition which enforces one factor to belong exactly to a known dictionary. A new…

机器学习 · 统计学 2018-03-13 Jérémy E. Cohen , Nicolas Gillis

Consider a multinomial regression model where the response, which indicates a unit's membership in one of several possible unordered classes, is associated with a set of predictor variables. Such models typically involve a matrix of…

应用统计 · 统计学 2009-01-28 Paul Gustafson , Geneviève Lefebvre

The tensor rank decomposition problem consists of recovering the unique set of parameters representing a robustly identifiable low-rank tensor when the coordinate representation of the tensor is presented as input. A condition number for…

代数几何 · 数学 2022-09-02 Nick Vannieuwenhoven

We consider the task of low-multilinear-rank functional regression, i.e., learning a low-rank parametric representation of functions from scattered real-valued data. Our first contribution is the development and analysis of an efficient…

统计计算 · 统计学 2018-09-26 Alex A. Gorodetsky , John D. Jakeman

This paper proposes a new methodology to predict and update the residual useful lifetime of a system using a sequence of degradation images. The methodology integrates tensor linear algebra with traditional location-scale regression widely…

应用统计 · 统计学 2017-06-13 Xiaolei Fang , Kamran Paynabar , Nagi Gebraeel

Tensor decomposition is an effective approach to compress over-parameterized neural networks and to enable their deployment on resource-constrained hardware platforms. However, directly applying tensor compression in the training process is…

机器学习 · 计算机科学 2019-05-28 Cole Hawkins , Zheng Zhang

This paper provides a unifying view of a wide range of problems of interest in machine learning by framing them as the minimization of functionals defined on the space of probability measures. In particular, we show that generative…

机器学习 · 计算机科学 2019-05-21 Casey Chu , Jose Blanchet , Peter Glynn

Probabilistic Regression refers to predicting a full probability density function for the target conditional on the features. We present a nonparametric approach to this problem which combines base classifiers (typically gradient boosted…

机器学习 · 计算机科学 2022-10-31 Brian Lucena

Characteristic functions of weighted sums of independent random variables exhibit low-rank structure in the quantized tensor train (QTT) representation, also known as matrix product states (MPS), enabling up to exponential compression of…

机器学习 · 统计学 2026-03-25 Juan José Rodríguez-Aldavero , Juan José García-Ripoll