activity
20132025
most citedAn Unsupervised Approach for Automatic Activity Recognition based on Hidden Markov Model Regression

172 citations · 664 across the 34 of their papers we have counts for

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6 papers · 1 filter

math.ST2021

Non-asymptotic model selection in block-diagonal mixture of polynomial experts models

TrungTin Nguyen, Faicel Chamroukhi, Hien Duy Nguyen +1

Model selection, via penalized likelihood type criteria, is a standard task in many statistical inference and machine learning problems. Progress has led to deriving criteria with…

math.ST2021★ 1 cited

A non-asymptotic approach for model selection via penalization in high-dimensional mixture of experts models

TrungTin Nguyen, Hien Duy Nguyen, Faicel Chamroukhi +1

Mixture of experts (MoE) are a popular class of statistical and machine learning models that have gained attention over the years due to their flexibility and efficiency. In this w…

math.ST2020★ 15 cited

Approximations of conditional probability density functions in Lebesgue spaces via mixture of experts models

Hien Duy Nguyen, TrungTin Nguyen, Faicel Chamroukhi +1

Mixture of experts (MoE) models are widely applied for conditional probability density estimation problems. We demonstrate the richness of the class of MoE models by proving densen…

math.ST2020★ 1 cited

Non-asymptotic oracle inequalities for the Lasso in high-dimensional mixture of experts

TrungTin Nguyen, Hien D Nguyen, Faicel Chamroukhi +1

We investigate the estimation properties of the mixture of experts (MoE) model in a high-dimensional setting, where the number of predictors is much larger than the sample size, an…

math.ST2020★ 2 cited

Approximation of probability density functions via location-scale finite mixtures in Lebesgue spaces

TrungTin Nguyen, Faicel Chamroukhi, Hien D Nguyen +1

The class of location-scale finite mixtures is of enduring interest both from applied and theoretical perspectives of probability and statistics. We prove the following results: to…

math.ST2019★ 71 cited

Approximation by finite mixtures of continuous density functions that vanish at infinity

T Tin Nguyen, Hien D Nguyen, Faicel Chamroukhi +1

Given sufficiently many components, it is often cited that finite mixture models can approximate any other probability density function (pdf) to an arbitrary degree of accuracy. Un…