no code implementations • 26 Jan 2023 • Vuong T. Pham, Hien D. Nguyen, Thinh Le, Binh Nguyen, Quoc Hung Ngo
In this paper, an ontology-based approach is used to organize the knowledge base of legal documents in road traffic law.
no code implementations • 22 Sep 2020 • TrungTin Nguyen, Hien D. Nguyen, Faicel Chamroukhi, Geoffrey J. McLachlan
Mixture of experts (MoE) has a well-principled finite mixture model construction for prediction, allowing the gating network (mixture weights) to learn from the predictors (explanatory variables) together with the experts' network (mixture component densities).
no code implementations • 12 Sep 2019 • Faïcel Chamroukhi, Florian Lecocq, Hien D. Nguyen
Mixtures-of-Experts models and their maximum likelihood estimation (MLE) via the EM algorithm have been thoroughly studied in the statistics and machine learning literature.
1 code implementation • 14 May 2019 • Hien D. Nguyen, Julyan Arbel, Hongliang Lü, Florence Forbes
Furthermore, we propose a consistent V-statistic estimator of the energy statistic, under which we show that the large sample result holds, and prove that the rejection ABC algorithm, based on the energy statistic, generates pseudo-posterior distributions that achieves convergence to the correct limits, when implemented with rejection thresholds that converge to zero, in the finite sample setting.
no code implementations • 28 Nov 2018 • Chiaki Sakama, Hien D. Nguyen, Taisuke Sato, Katsumi Inoue
In this paper, we introduce methods of encoding propositional logic programs in vector spaces.
no code implementations • 1 Mar 2018 • Faicel Chamroukhi, Hien D. Nguyen
FDA is the data analysis paradigm in which the individual data units are functions (e. g., curves, surfaces), rather than simple vectors.
no code implementations • 12 Jul 2017 • Hien D. Nguyen, Faicel Chamroukhi
Due to the probabilistic nature of MoE models, we propose the maximum quasi-likelihood (MQL) estimator as a method for estimating MoE model parameters from data, and we provide conditions under which MQL estimators are consistent and asymptotically normal.
no code implementations • 12 May 2017 • Hien D. Nguyen, Geoffrey J. McLachlan
Support vector machines (SVMs) are an important tool in modern data analysis.
no code implementations • 12 Nov 2016 • Hien D. Nguyen
MM (majorization--minimization) algorithms are an increasingly popular tool for solving optimization problems in machine learning and statistical estimation.
no code implementations • 11 Feb 2016 • Hien D. Nguyen, Luke R Lloyd-Jones, Geoffrey J. McLachlan
The mixture of experts (MoE) model is a popular neural network architecture for nonlinear regression and classification.