Search Results for author: Shaobo Han

Found 11 papers, 3 papers with code

Exploring Compositional Visual Generation with Latent Classifier Guidance

no code implementations25 Apr 2023 Changhao Shi, Haomiao Ni, Kai Li, Shaobo Han, Mingfu Liang, Martin Renqiang Min

We show that this paradigm based on latent classifier guidance is agnostic to pre-trained generative models, and present competitive results for both image generation and sequential manipulation of real and synthetic images.

Image Generation

Learning Transferable Reward for Query Object Localization with Policy Adaptation

1 code implementation ICLR 2022 Tingfeng Li, Shaobo Han, Martin Renqiang Min, Dimitris N. Metaxas

We propose a reinforcement learning based approach to query object localization, for which an agent is trained to localize objects of interest specified by a small exemplary set.

Metric Learning Object Localization +2

Provable Adaptation across Multiway Domains via Representation Learning

no code implementations ICLR 2022 Zhili Feng, Shaobo Han, Simon S. Du

This paper studies zero-shot domain adaptation where each domain is indexed on a multi-dimensional array, and we only have data from a small subset of domains.

Domain Adaptation Representation Learning

Supervised Multiscale Dimension Reduction for Spatial Interaction Networks

no code implementations1 Jan 2019 Shaobo Han, David B. Dunson

We introduce a multiscale supervised dimension reduction method for SPatial Interaction Network (SPIN) data, which consist of a collection of spatially coordinated interactions.

Dimensionality Reduction

Multiresolution Tensor Decomposition for Multiple Spatial Passing Networks

no code implementations3 Mar 2018 Shaobo Han, David B. Dunson

This article is motivated by soccer positional passing networks collected across multiple games.

Tensor Decomposition

VAE Learning via Stein Variational Gradient Descent

no code implementations NeurIPS 2017 Yunchen Pu, Zhe Gan, Ricardo Henao, Chunyuan Li, Shaobo Han, Lawrence Carin

A new method for learning variational autoencoders (VAEs) is developed, based on Stein variational gradient descent.

Variational Gaussian Copula Inference

1 code implementation19 Jun 2015 Shaobo Han, Xuejun Liao, David B. Dunson, Lawrence Carin

We utilize copulas to constitute a unified framework for constructing and optimizing variational proposals in hierarchical Bayesian models.

Alternating Minimization Algorithm with Automatic Relevance Determination for Transmission Tomography under Poisson Noise

1 code implementation29 Dec 2014 Yan Kaganovsky, Shaobo Han, Soysal Degirmenci, David G. Politte, David J. Brady, Joseph A. O'Sullivan, Lawrence Carin

We propose a globally convergent alternating minimization (AM) algorithm for image reconstruction in transmission tomography, which extends automatic relevance determination (ARD) to Poisson noise models with Beer's law.

Image Reconstruction

Dynamic Rank Factor Model for Text Streams

no code implementations NeurIPS 2014 Shaobo Han, Lin Du, Esther Salazar, Lawrence Carin

We propose a semi-parametric and dynamic rank factor model for topic modeling, capable of (1) discovering topic prevalence over time, and (2) learning contemporary multi-scale dependence structures, providing topic and word correlations as a byproduct.

Multiscale Shrinkage and Lévy Processes

no code implementations11 Jan 2014 Xin Yuan, Vinayak Rao, Shaobo Han, Lawrence Carin

The method we consider in detail, and for which numerical results are presented, is based on increments of a gamma process.

Bayesian Inference Compressive Sensing +1

Integrated Non-Factorized Variational Inference

no code implementations NeurIPS 2013 Shaobo Han, Xuejun Liao, Lawrence Carin

We present a non-factorized variational method for full posterior inference in Bayesian hierarchical models, with the goal of capturing the posterior variable dependencies via efficient and possibly parallel computation.

Variational Inference

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