Search Results for author: Kenneth Tran

Found 8 papers, 3 papers with code

Differentiable Physics-based Greenhouse Simulation

no code implementations21 Nov 2022 Nhat M. Nguyen, Hieu T. Tran, Minh V. Duong, Hanh Bui, Kenneth Tran

We present a differentiable greenhouse simulation model based on physical processes whose parameters can be obtained by training from real data.

Policy Optimization In the Face of Uncertainty

no code implementations25 Sep 2019 Tung-Long Vuong, Han Nguyen, Hai Pham, Kenneth Tran

Under this framework, the objective function can represented end-to-end as a single computational graph, which allows seamless policy gradient computation via backpropagation through the models.

Continuous Control Model-based Reinforcement Learning

Uncertainty-aware Model-based Policy Optimization

no code implementations25 Jun 2019 Tung-Long Vuong, Kenneth Tran

Model-based reinforcement learning has the potential to be more sample efficient than model-free approaches.

Continuous Control Model-based Reinforcement Learning +1

Bias Correction of Learned Generative Models using Likelihood-Free Importance Weighting

2 code implementations NeurIPS 2019 Aditya Grover, Jiaming Song, Alekh Agarwal, Kenneth Tran, Ashish Kapoor, Eric Horvitz, Stefano Ermon

A standard technique to correct this bias is importance sampling, where samples from the model are weighted by the likelihood ratio under model and true distributions.

Data Augmentation

Bias Correction of Learned Generative Models via Likelihood-free Importance Weighting

no code implementations ICLR Workshop DeepGenStruct 2019 Aditya Grover, Jiaming Song, Ashish Kapoor, Kenneth Tran, Alekh Agarwal, Eric Horvitz, Stefano Ermon

A standard technique to correct this bias is by importance weighting samples from the model by the likelihood ratio under the model and true distributions.

Data Augmentation

A thermodynamic framework for modelling membrane transporters

1 code implementation12 Jun 2018 Michael Pan, Peter J. Gawthrop, Kenneth Tran, Joseph Cursons, Edmund J. Crampin

Membrane transporters contribute to the regulation of the internal environment of cells by translocating substrates across cell membranes.

Biomolecules

Semantic Compositional Networks for Visual Captioning

1 code implementation CVPR 2017 Zhe Gan, Chuang Gan, Xiaodong He, Yunchen Pu, Kenneth Tran, Jianfeng Gao, Lawrence Carin, Li Deng

The degree to which each member of the ensemble is used to generate an image caption is tied to the image-dependent probability of the corresponding tag.

Image Captioning Semantic Composition +1

Rich Image Captioning in the Wild

no code implementations30 Mar 2016 Kenneth Tran, Xiaodong He, Lei Zhang, Jian Sun, Cornelia Carapcea, Chris Thrasher, Chris Buehler, Chris Sienkiewicz

We present an image caption system that addresses new challenges of automatically describing images in the wild.

Image Captioning

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