Search Results for author: Siyi Hu

Found 15 papers, 7 papers with code

Debunking Disinformation: Revolutionizing Truth with NLP in Fake News Detection

no code implementations30 Aug 2023 Li He, Siyi Hu, Ailun Pei

The Internet and social media have altered how individuals access news in the age of instantaneous information distribution.

Decision Making Fake News Detection

Maximum Entropy Heterogeneous-Agent Reinforcement Learning

1 code implementation19 Jun 2023 Jiarong Liu, Yifan Zhong, Siyi Hu, Haobo Fu, Qiang Fu, Xiaojun Chang, Yaodong Yang

We embed cooperative MARL problems into probabilistic graphical models, from which we derive the maximum entropy (MaxEnt) objective for MARL.

Multi-agent Reinforcement Learning reinforcement-learning +1

Heterogeneous-Agent Reinforcement Learning

1 code implementation19 Apr 2023 Yifan Zhong, Jakub Grudzien Kuba, Xidong Feng, Siyi Hu, Jiaming Ji, Yaodong Yang

The necessity for cooperation among intelligent machines has popularised cooperative multi-agent reinforcement learning (MARL) in AI research.

LEMMA Multi-agent Reinforcement Learning +1

MARLlib: A Scalable and Efficient Multi-agent Reinforcement Learning Library

1 code implementation11 Oct 2022 Siyi Hu, Yifan Zhong, Minquan Gao, Weixun Wang, Hao Dong, Xiaodan Liang, Zhihui Li, Xiaojun Chang, Yaodong Yang

A significant challenge facing researchers in the area of multi-agent reinforcement learning (MARL) pertains to the identification of a library that can offer fast and compatible development for multi-agent tasks and algorithm combinations, while obviating the need to consider compatibility issues.

Multi-agent Reinforcement Learning reinforcement-learning +1

Policy Diagnosis via Measuring Role Diversity in Cooperative Multi-agent RL

no code implementations1 Jun 2022 Siyi Hu, Chuanlong Xie, Xiaodan Liang, Xiaojun Chang

In this study, we quantify the agent's behavior difference and build its relationship with the policy performance via {\bf Role Diversity}, a metric to measure the characteristics of MARL tasks.

SMAC+ Starcraft

Role Diversity Matters: A Study of Cooperative Training Strategies for Multi-Agent RL

no code implementations29 Sep 2021 Siyi Hu, Chuanlong Xie, Xiaodan Liang, Xiaojun Chang

In addition, role diversity can help to find a better training strategy and increase performance in cooperative MARL.

SMAC+ Starcraft +1

Neural Trees for Learning on Graphs

no code implementations NeurIPS 2021 Rajat Talak, Siyi Hu, Lisa Peng, Luca Carlone

We also prove that the number of parameters needed to achieve an $\epsilon$-approximation of the distribution function is exponential in the treewidth of the input graph, but linear in its size.

Node Classification

UPDeT: Universal Multi-agent Reinforcement Learning via Policy Decoupling with Transformers

1 code implementation20 Jan 2021 Siyi Hu, Fengda Zhu, Xiaojun Chang, Xiaodan Liang

Recent advances in multi-agent reinforcement learning have been largely limited in training one model from scratch for every new task.

reinforcement-learning Reinforcement Learning (RL) +1

UPDeT: Universal Multi-agent RL via Policy Decoupling with Transformers

no code implementations ICLR 2021 Siyi Hu, Fengda Zhu, Xiaojun Chang, Xiaodan Liang

Recent advances in multi-agent reinforcement learning have been largely limited in training one model from scratch for every new task.

reinforcement-learning Reinforcement Learning (RL) +1

Multi-view Drone-based Geo-localization via Style and Spatial Alignment

no code implementations23 Jun 2020 Siyi Hu, Xiaojun Chang

In this paper, we focus on the task of multi-view multi-source geo-localization, which serves as an important auxiliary method of GPS positioning by matching drone-view image and satellite-view image with pre-annotated GPS tag.

TAG

Accelerated Inference in Markov Random Fields via Smooth Riemannian Optimization

1 code implementation27 Oct 2018 Siyi Hu, Luca Carlone

We show that this approach, named Fast Unconstrained SEmidefinite Solver (FUSES), can solve large problems in milliseconds.

Image Segmentation Riemannian optimization +1

Modeling Perceptual Aliasing in SLAM via Discrete-Continuous Graphical Models

1 code implementation27 Oct 2018 Pierre-Yves Lajoie, Siyi Hu, Giovanni Beltrame, Luca Carlone

Perceptual aliasing is one of the main causes of failure for Simultaneous Localization and Mapping (SLAM) systems operating in the wild.

Robotics 65K05, 62F10, 68T40, 68W40, 68W25, I.2.9; G.1.6

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