Search Results for author: Xiaoyuan Liu

Found 14 papers, 3 papers with code

Effective and Efficient Federated Tree Learning on Hybrid Data

no code implementations18 Oct 2023 Qinbin Li, Chulin Xie, Xiaojun Xu, Xiaoyuan Liu, Ce Zhang, Bo Li, Bingsheng He, Dawn Song

To address this, we propose HybridTree, a novel federated learning approach that enables federated tree learning on hybrid data.

Federated Learning

Model Inversion Attacks on Homogeneous and Heterogeneous Graph Neural Networks

no code implementations15 Oct 2023 Renyang Liu, Wei Zhou, Jinhong Zhang, Xiaoyuan Liu, Peiyuan Si, Haoran Li

Inspired by this, we propose a novel model inversion attack method on HomoGNNs and HeteGNNs, namely HomoGMI and HeteGMI.

Learning To Optimize Quantum Neural Network Without Gradients

no code implementations15 Apr 2023 Ankit Kulshrestha, Xiaoyuan Liu, Hayato Ushijima-Mwesigwa, Ilya Safro

This extension from classical to quantum domain has been made possible due to the development of hybrid quantum-classical algorithms that allow a parameterized quantum circuit to be optimized using gradient based algorithms that run on a classical computer.

Quantum Machine Learning

Feasibility and stability in large Lotka Volterra systems with interaction structure

no code implementations23 Nov 2022 Xiaoyuan Liu, George W. A. Constable, Jonathan W. Pitchford

Complex system stability can be studied via linear stability analysis using Random Matrix Theory (RMT) or via feasibility (requiring positive equilibrium abundances).

Towards Practical Explainability with Cluster Descriptors

no code implementations18 Oct 2022 Xiaoyuan Liu, Ilya Tyagin, Hayato Ushijima-Mwesigwa, Indradeep Ghosh, Ilya Safro

The goal is to find a representative set of tags for each cluster, referred to as the cluster descriptors, with the constraint that these descriptors we find are pairwise disjoint, and the total size of all the descriptors is minimized.

Clustering Combinatorial Optimization

UniFed: All-In-One Federated Learning Platform to Unify Open-Source Frameworks

1 code implementation21 Jul 2022 Xiaoyuan Liu, Tianneng Shi, Chulin Xie, Qinbin Li, Kangping Hu, Haoyu Kim, Xiaojun Xu, The-Anh Vu-Le, Zhen Huang, Arash Nourian, Bo Li, Dawn Song

The platform streamlines the end-to-end workflow for distributed experimentation and deployment, encompassing 11 popular open-source FL frameworks.

Federated Learning

A System for Automated Open-Source Threat Intelligence Gathering and Management

no code implementations19 Jan 2021 Peng Gao, Xiaoyuan Liu, Edward Choi, Bhavna Soman, Chinmaya Mishra, Kate Farris, Dawn Song

SecurityKG collects OSCTI reports from various sources, uses a combination of AI and NLP techniques to extract high-fidelity knowledge about threat behaviors, and constructs a security knowledge graph.

Management

Enabling Efficient Cyber Threat Hunting With Cyber Threat Intelligence

1 code implementation26 Oct 2020 Peng Gao, Fei Shao, Xiaoyuan Liu, Xusheng Xiao, Zheng Qin, Fengyuan Xu, Prateek Mittal, Sanjeev R. Kulkarni, Dawn Song

Log-based cyber threat hunting has emerged as an important solution to counter sophisticated attacks.

Structured Hierarchical Dialogue Policy with Graph Neural Networks

no code implementations22 Sep 2020 Zhi Chen, Xiaoyuan Liu, Lu Chen, Kai Yu

A novel ComNet is proposed to model the structure of a hierarchical agent.

Distributed Structured Actor-Critic Reinforcement Learning for Universal Dialogue Management

no code implementations22 Sep 2020 Zhi Chen, Lu Chen, Xiaoyuan Liu, Kai Yu

The task-oriented spoken dialogue system (SDS) aims to assist a human user in accomplishing a specific task (e. g., hotel booking).

Decision Making Dialogue Management +3

Pretrained Transformers Improve Out-of-Distribution Robustness

1 code implementation ACL 2020 Dan Hendrycks, Xiaoyuan Liu, Eric Wallace, Adam Dziedzic, Rishabh Krishnan, Dawn Song

Although pretrained Transformers such as BERT achieve high accuracy on in-distribution examples, do they generalize to new distributions?

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