Search Results for author: Mu Zhu

Found 11 papers, 2 papers with code

Decision Theory-Guided Deep Reinforcement Learning for Fast Learning

1 code implementation8 Feb 2024 Zelin Wan, Jin-Hee Cho, Mu Zhu, Ahmed H. Anwar, Charles Kamhoua, Munindar P. Singh

Experimental results demonstrate that the integration of decision theory not only facilitates effective initial guidance for DRL agents but also promotes a more structured and informed exploration strategy, particularly in environments characterized by large and intricate state spaces.

reinforcement-learning

Restricted Tweedie Stochastic Block Models

no code implementations17 Oct 2023 Jie Jian, Mu Zhu, Peijun Sang

To model the international trading network, where edge weights represent trading values between countries, we propose an innovative SBM based on a restricted Tweedie distribution.

Community Detection Stochastic Block Model

Dependence model assessment and selection with DecoupleNets

no code implementations7 Feb 2022 Marius Hofert, Avinash Prasad, Mu Zhu

This map, termed DecoupleNet, is used for dependence model assessment and selection.

Model Selection

RafterNet: Probabilistic predictions in multi-response regression

no code implementations2 Dec 2021 Marius Hofert, Avinash Prasad, Mu Zhu

A fully nonparametric approach for making probabilistic predictions in multi-response regression problems is introduced.

regression

Applications of multivariate quasi-random sampling with neural networks

no code implementations15 Dec 2020 Marius Hofert, Avinash Prasad, Mu Zhu

Generative moment matching networks (GMMNs) are suggested for modeling the cross-sectional dependence between stochastic processes.

Multivariate time-series modeling with generative neural networks

no code implementations25 Feb 2020 Marius Hofert, Avinash Prasad, Mu Zhu

Generative moment matching networks (GMMNs) are introduced as dependence models for the joint innovation distribution of multivariate time series (MTS).

Dimensionality Reduction Time Series +1

Quasi-random sampling for multivariate distributions via generative neural networks

1 code implementation1 Nov 2018 Marius Hofert, Avinash Prasad, Mu Zhu

Once trained on pseudo-random samples from a parametric model or on real data, these neural networks only require a multivariate standard uniform randomized QMC point set as input and are thus fast in estimating expectations of interest under dependence with variance reduction.

Management

Pruning variable selection ensembles

no code implementations26 Apr 2017 Chunxia Zhang, Yilei Wu, Mu Zhu

In the context of variable selection, ensemble learning has gained increasing interest due to its great potential to improve selection accuracy and to reduce false discovery rate.

Ensemble Learning Variable Selection

When is the majority-vote classifier beneficial?

no code implementations24 Jul 2013 Mu Zhu

In his seminal work, Schapire (1990) proved that weak classifiers could be improved to achieve arbitrarily high accuracy, but he never implied that a simple majority-vote mechanism could always do the trick.

Binary Classification General Classification

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