Search Results for author: Xiao Guo

Found 12 papers, 3 papers with code

Tracing Hyperparameter Dependencies for Model Parsing via Learnable Graph Pooling Network

no code implementations3 Dec 2023 Xiao Guo, Vishal Asnani, Sijia Liu, Xiaoming Liu

To explore such important dependencies, we propose a novel model parsing method called Learnable Graph Pooling Network (LGPN).

Node Classification

Privacy-Preserving Community Detection for Locally Distributed Multiple Networks

no code implementations27 Jun 2023 Xiao Guo, Xiang Li, Xiangyu Chang, Shujie Ma

To remove the bias incurred by RR and the squared network matrices, we develop a two-step bias-adjustment procedure.

Clustering Community Detection +2

Hierarchical Fine-Grained Image Forgery Detection and Localization

1 code implementation CVPR 2023 Xiao Guo, Xiaohong Liu, Zhiyuan Ren, Steven Grosz, Iacopo Masi, Xiaoming Liu

As a result, the algorithm is encouraged to learn both comprehensive features and inherent hierarchical nature of different forgery attributes, thereby improving the IFDL representation.

Attribute Classification +2

Learning Personalized Brain Functional Connectivity of MDD Patients from Multiple Sites via Federated Bayesian Networks

no code implementations6 Jan 2023 Shuai Liu, Xiao Guo, Shun Qi, Huaning Wang, Xiangyu Chang

In particular, we derive a closed-form expression for the local update step and use the iterative proximal projection method to deal with the group fused lasso penalty in the global update step.

Federated Learning

Multi-domain Learning for Updating Face Anti-spoofing Models

3 code implementations23 Aug 2022 Xiao Guo, Yaojie Liu, Anil Jain, Xiaoming Liu

In this work, we study multi-domain learning for face anti-spoofing(MD-FAS), where a pre-trained FAS model needs to be updated to perform equally well on both source and target domains while only using target domain data for updating.

Face Anti-Spoofing

FedPower: Privacy-Preserving Distributed Eigenspace Estimation

no code implementations1 Mar 2021 Xiao Guo, Xiang Li, Xiangyu Chang, Shusen Wang, Zhihua Zhang

The low communication power and the possible privacy breaches of data make the computation of eigenspace challenging.

BIG-bench Machine Learning Dimensionality Reduction +2

Discourse-level Relation Extraction via Graph Pooling

no code implementations1 Jan 2021 I-Hung Hsu, Xiao Guo, Premkumar Natarajan, Nanyun Peng

The ability to capture complex linguistic structures and long-term dependencies among words in the passage is essential for discourse-level relation extraction (DRE) tasks.

Natural Language Understanding Relation +1

CORD19STS: COVID-19 Semantic Textual Similarity Dataset

no code implementations5 Jul 2020 Xiao Guo, Hengameh Mirzaalian, Ekraam Sabir, Ayush Jaiswal, Wael Abd-Almageed

To overcome this gap, we introduce CORD19STS dataset which includes 13, 710 annotated sentence pairs collected from COVID-19 open research dataset (CORD-19) challenge.

Information Retrieval Language Modelling +6

Randomized spectral co-clustering for large-scale directed networks

no code implementations25 Apr 2020 Xiao Guo, Yixuan Qiu, Hai Zhang, Xiangyu Chang

Directed networks are broadly used to represent asymmetric relationships among units.

Clustering

Randomized Spectral Clustering in Large-Scale Stochastic Block Models

no code implementations20 Jan 2020 Hai Zhang, Xiao Guo, Xiangyu Chang

In this paper, we study the spectral clustering using randomized sketching algorithms from a statistical perspective, where we typically assume the network data are generated from a stochastic block model that is not necessarily of full rank.

Clustering Community Detection +1

Differentially Private Precision Matrix Estimation

no code implementations6 Sep 2019 Wenqing Su, Xiao Guo, Hai Zhang

In this paper, we study the problem of precision matrix estimation when the dataset contains sensitive information.

Human Motion Prediction via Learning Local Structure Representations and Temporal Dependencies

1 code implementation20 Feb 2019 Xiao Guo, Jongmoo Choi

Skel-TNet consists of three components: SkelNet and a Recurrent Neural Network, they have advantages in learning spatial and temporal dependencies for predicting human motion, respectively; a feed-forward network that outputs the final estimation.

Human motion prediction motion prediction

Cannot find the paper you are looking for? You can Submit a new open access paper.