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Recommendation models are typically trained on observational user interaction data, but the interactions between latent factors in users' decision-making processes lead to complex and entangled data. Disentangling these latent factors to…

信息检索 · 计算机科学 2023-04-18 Siyu Wang , Xiaocong Chen , Quan Z. Sheng , Yihong Zhang , Lina Yao

We propose a new unsupervised learning method for clustering a large number of time series based on a latent factor structure. Each cluster is characterized by its own cluster-specific factors in addition to some common factors which impact…

统计理论 · 数学 2022-09-09 Bo Zhang , Guangming Pan , Qiwei Yao , Wang Zhou

Tensors, also known as multidimensional arrays, are useful data structures in machine learning and statistics. In recent years, Bayesian methods have emerged as a popular direction for analyzing tensor-valued data since they provide a…

统计方法学 · 统计学 2024-02-02 Yiyao Shi , Weining Shen

Clustering objects into synthetic groups is a natural activity of any science. Astrophysics is not an exception and is now facing a deluge of data. For galaxies, the one-century old Hubble classification and the Hubble tuning fork are still…

星系天体物理 · 物理学 2015-08-28 Didier Fraix-Burnet , Marc Thuillard , Asis Kumar Chattopadhyay

This paper builds on recent research that focuses on regression modeling of continuous bounded data, such as proportions measured on a continuous scale. Specifically, it deals with beta regression models with mixed effects from a Bayesian…

For each type of number, structures that differ by arbitrary scaling factors and are isomorphic to one another are described. The scaling of number values in one structure, relative to the values in another structure, must be compensated…

环与代数 · 数学 2013-12-06 Paul Benioff

We study dicritical divisors and Rees valuations.

交换代数 · 数学 2015-08-25 Shreeram S Abhyankar , William J Heinzer

Functional data consist of trajectories observed over a continuous domain, such as time, space, or wavelength. Here we consider curves observed on different groups of subjects and propose a Bayesian multi-group functional factor analysis…

统计方法学 · 统计学 2026-04-02 Xuanye Dai , Anna Gottard , Michele Guindani , Marina Vannucci

We revisit and generalize the concept of composite likelihood as a method to make a probabilistic inference by aggregation of multiple Bayesian agents, thereby defining a class of predictive models which we call composite Bayesian. This…

统计计算 · 统计学 2019-04-18 Alexis Roche

The preceding paper constructed tangle machines as diagrammatic models, and illustrated their utility with a number of examples. The information content of a tangle machine is contained in characteristic quantities associated to equivalence…

信息论 · 计算机科学 2014-04-11 Avishy Y. Carmi , Daniel Moskovich

Factor models are a very efficient way to describe high dimensional vectors of data in terms of a small number of common relevant factors. This problem, which is of fundamental importance in many disciplines, is usually reformulated in…

最优化与控制 · 数学 2018-06-13 Valentina Ciccone , Augusto Ferrante , Mattia Zorzi

Bayesian sparse factor models have proven useful for characterizing dependence in multivariate data, but scaling computation to large numbers of samples and dimensions is problematic. We propose expandable factor analysis for scalable…

统计方法学 · 统计学 2018-06-21 Sanvesh Srivastava , Barbara E. Engelhardt , David B. Dunson

The past two decades have witnessed a surge of new research in the analysis of randomized experiments. The emergence of this literature may seem surprising given the widespread use and long history of experiments as the "gold standard" in…

计量经济学 · 经济学 2025-04-03 Yuehao Bai , Azeem M. Shaikh , Max Tabord-Meehan

In statistical practice, a realistic Bayesian model for a given data set can be defined by a likelihood function that is analytically or computationally intractable, due to large data sample size, high parameter dimensionality, or complex…

统计方法学 · 统计学 2019-03-19 George Karabatsos , Fabrizio Leisen

Explosive growth in data and availability of cheap computing resources have sparked increasing interest in Big learning, an emerging subfield that studies scalable machine learning algorithms, systems, and applications with Big Data.…

机器学习 · 计算机科学 2017-03-02 Jun Zhu , Jianfei Chen , Wenbo Hu , Bo Zhang

Variance reduction is a family of powerful mechanisms for stochastic optimization that appears to be helpful in many machine learning tasks. It is based on estimating the exact gradient with some recursive sequences. Previously, many papers…

最优化与控制 · 数学 2025-11-07 Aleksandr Shestakov , Valery Parfenov , Aleksandr Beznosikov

The last decade has witnessed a number of important and exciting developments that had been achieved for improving recurrence plot based data analysis and to widen its application potential. We will give a brief overview about important and…

混沌动力学 · 物理学 2024-09-09 Norbert Marwan , K. Hauke Kraemer

We propose a novel VAE-based deep auto-encoder model that can learn disentangled latent representations in a fully unsupervised manner, endowed with the ability to identify all meaningful sources of variation and their cardinality. Our…

机器学习 · 计算机科学 2019-02-06 Minyoung Kim , Yuting Wang , Pritish Sahu , Vladimir Pavlovic

Causal inference can be formalized as Bayesian inference that combines a prior distribution over causal models and likelihoods that account for both observations and interventions. We show that it is possible to implement this approach…

人工智能 · 计算机科学 2019-11-01 Sam Witty , Alexander Lew , David Jensen , Vikash Mansinghka

This paper reviews the basic ideas behind a Bayesian unfolding published some years ago and improves their implementation. In particular, uncertainties are now treated at all levels by probability density functions and their propagation is…

数据分析、统计与概率 · 物理学 2010-10-05 G. D'Agostini