Search Results for author: Chang Xiao

Found 10 papers, 5 papers with code

A Hypergraph Neural Network Framework for Learning Hyperedge-Dependent Node Embeddings

no code implementations28 Dec 2022 Ryan Aponte, Ryan A. Rossi, Shunan Guo, Jane Hoffswell, Nedim Lipka, Chang Xiao, Gromit Chan, Eunyee Koh, Nesreen Ahmed

In this work, we introduce a hypergraph representation learning framework called Hypergraph Neural Networks (HNN) that jointly learns hyperedge embeddings along with a set of hyperedge-dependent embeddings for each node in the hypergraph.

Hyperedge Prediction Node Classification +1

Can one hear the shape of a neural network?: Snooping the GPU via Magnetic Side Channel

no code implementations15 Sep 2021 Henrique Teles Maia, Chang Xiao, DIngzeyu Li, Eitan Grinspun, Changxi Zheng

We find that each layer component's evaluation produces an identifiable magnetic signal signature, from which layer topology, width, function type, and sequence order can be inferred using a suitably trained classifier and a joint consistency optimization based on integer programming.

STRODE: Stochastic Boundary Ordinary Differential Equation

1 code implementation17 Jul 2021 Hengguan Huang, Hongfu Liu, Hao Wang, Chang Xiao, Ye Wang

In this paper, we present a probabilistic ordinary differential equation (ODE), called STochastic boundaRy ODE (STRODE), that learns both the timings and the dynamics of time series data without requiring any timing annotations during training.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +4

DeepCAD: A Deep Generative Network for Computer-Aided Design Models

1 code implementation ICCV 2021 Rundi Wu, Chang Xiao, Changxi Zheng

We present the first 3D generative model for a drastically different shape representation --- describing a shape as a sequence of computer-aided design (CAD) operations.

Enhancing Adversarial Defense by k-Winners-Take-All

1 code implementation ICLR 2020 Chang Xiao, Peilin Zhong, Changxi Zheng

In all cases, the robustness of k-WTA networks outperforms that of traditional networks under white-box attacks.

Adversarial Defense

Rethinking Generative Mode Coverage: A Pointwise Guaranteed Approach

no code implementations NeurIPS 2019 Peilin Zhong, Yuchen Mo, Chang Xiao, Peng-Yu Chen, Changxi Zheng

The conventional wisdom to this end is by reducing through training a statistical distance (such as $f$-divergence) between the generated distribution and provided data distribution.

BourGAN: Generative Networks with Metric Embeddings

1 code implementation NeurIPS 2018 Chang Xiao, Peilin Zhong, Changxi Zheng

This paper addresses the mode collapse for generative adversarial networks (GANs).

FontCode: Embedding Information in Text Documents using Glyph Perturbation

no code implementations28 Jul 2017 Chang Xiao, Cheng Zhang, Changxi Zheng

We then introduce an algorithm that embeds a user-provided message in the text document and produces an encoded document whose appearance is minimally perturbed from the original document.

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