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SceneGen: Generative Contextual Scene Augmentation using Scene Graph Priors

Sep 30, 2020
Mohammad Keshavarzi, Aakash Parikh, Xiyu Zhai, Melody Mao, Luisa Caldas, Allen Y. Yang

* 19 pages, 19 figures 

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On the Risk of Minimum-Norm Interpolants and Restricted Lower Isometry of Kernels

Aug 27, 2019
Tengyuan Liang, Alexander Rakhlin, Xiyu Zhai


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Near Optimal Stratified Sampling

Jul 26, 2019
Tiancheng Yu, Xiyu Zhai, Suvrit Sra

* We have discovered a mistake in the main result. The quantity on the RHS of (3) is not equal to the variance of estimator (2) when the sampling rule is designed adaptively as we do. There will be further cross-product terms which are now dominant terms. Therefore, although our bound is correct for (3), it no longer implies bound of the variance of (2) 

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Consistency of Interpolation with Laplace Kernels is a High-Dimensional Phenomenon

Dec 28, 2018
Alexander Rakhlin, Xiyu Zhai


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Gradient Descent Finds Global Minima of Deep Neural Networks

Nov 30, 2018
Simon S. Du, Jason D. Lee, Haochuan Li, Liwei Wang, Xiyu Zhai


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How Many Samples are Needed to Learn a Convolutional Neural Network?

May 21, 2018
Simon S. Du, Yining Wang, Xiyu Zhai, Sivaraman Balakrishnan, Ruslan Salakhutdinov, Aarti Singh


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Generalization Bounds of SGLD for Non-convex Learning: Two Theoretical Viewpoints

Jul 19, 2017
Wenlong Mou, Liwei Wang, Xiyu Zhai, Kai Zheng


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