Search Results for author: Haipeng Chen

Found 17 papers, 7 papers with code

Action Recognition with Multi-stream Motion Modeling and Mutual Information Maximization

no code implementations13 Jun 2023 Yuheng Yang, Haipeng Chen, Zhenguang Liu, Yingda Lyu, Beibei Zhang, Shuang Wu, Zhibo Wang, Kui Ren

However, the vanilla Euclidean space is not efficient for modeling important motion characteristics such as the joint-wise angular acceleration, which reveals the driving force behind the motion.

Action Recognition

Discrepancy-Guided Reconstruction Learning for Image Forgery Detection

no code implementations26 Apr 2023 Zenan Shi, Haipeng Chen, Long Chen, Dong Zhang

In this paper, we propose a novel image forgery detection paradigm for boosting the model learning capacity on both forgery-sensitive and genuine compact visual patterns.

Image Forgery Detection

A Fast Algorithm for Onboard Atmospheric Powered Descent Guidance

no code implementations9 Sep 2022 Yushu Chen, Guangwen Yang, Lu Wang, Qingzhong Gan, Haipeng Chen, Quanyong Xu

Atmospheric powered descent guidance can be solved by successive convexification; however, its onboard application is impeded by the sharp increase in computation caused by nonlinear aerodynamic forces.

3D Human Motion Prediction: A Survey

no code implementations3 Mar 2022 Kedi Lyu, Haipeng Chen, Zhenguang Liu, Beiqi Zhang, Ruili Wang

3D human motion prediction, predicting future poses from a given sequence, is an issue of great significance and challenge in computer vision and machine intelligence, which can help machines in understanding human behaviors.

Human motion prediction motion prediction

Robust Reinforcement Learning Under Minimax Regret for Green Security

1 code implementation15 Jun 2021 Lily Xu, Andrew Perrault, Fei Fang, Haipeng Chen, Milind Tambe

We formulate the problem as a game between the defender and nature who controls the parameter values of the adversarial behavior and design an algorithm MIRROR to find a robust policy.

Decision Making reinforcement-learning +1

Contingency-Aware Influence Maximization: A Reinforcement Learning Approach

1 code implementation13 Jun 2021 Haipeng Chen, Wei Qiu, Han-Ching Ou, Bo An, Milind Tambe

Empirical results show that our method achieves influence as high as the state-of-the-art methods for contingency-aware IM, while having negligible runtime at test phase.

Combinatorial Optimization reinforcement-learning +1

AI-driven Prices for Externalities and Sustainability in Production Markets

1 code implementation10 Jun 2021 Panayiotis Danassis, Aris Filos-Ratsikas, Haipeng Chen, Milind Tambe, Boi Faltings

Traditional competitive markets do not account for negative externalities; indirect costs that some participants impose on others, such as the cost of over-appropriating a common-pool resource (which diminishes future stock, and thus harvest, for everyone).

Fairness

Learning MDPs from Features: Predict-Then-Optimize for Sequential Decision Problems by Reinforcement Learning

no code implementations NeurIPS 2021 Kai Wang, Sanket Shah, Haipeng Chen, Andrew Perrault, Finale Doshi-Velez, Milind Tambe

In the predict-then-optimize framework, the objective is to train a predictive model, mapping from environment features to parameters of an optimization problem, which maximizes decision quality when the optimization is subsequently solved.

Reinforcement Learning (RL)

Learning MDPs from Features: Predict-Then-Optimize for Sequential Decision Making by Reinforcement Learning

no code implementations NeurIPS 2021 Kai Wang, Sanket Shah, Haipeng Chen, Andrew Perrault, Finale Doshi-Velez, Milind Tambe

In the predict-then-optimize framework, the objective is to train a predictive model, mapping from environment features to parameters of an optimization problem, which maximizes decision quality when the optimization is subsequently solved.

Decision Making Reinforcement Learning (RL)

Aggregated Multi-GANs for Controlled 3D Human Motion Prediction

no code implementations17 Mar 2021 Zhenguang Liu, Kedi Lyu, Shuang Wu, Haipeng Chen, Yanbin Hao, Shouling Ji

Our method is compelling in that it enables manipulable motion prediction across activity types and allows customization of the human movement in a variety of fine-grained ways.

Human motion prediction motion prediction

Active Screening for Recurrent Diseases: A Reinforcement Learning Approach

no code implementations7 Jan 2021 Han-Ching Ou, Haipeng Chen, Shahin Jabbari, Milind Tambe

However, given the limited number of health workers, only a small subset of the population can be visited in any given time period.

Combinatorial Optimization reinforcement-learning +1

Motion Prediction Using Trajectory Cues

1 code implementation ICCV 2021 Zhenguang Liu, Pengxiang Su, Shuang Wu, Xuanjing Shen, Haipeng Chen, Yanbin Hao, Meng Wang

Predicting human motion from a historical pose sequence is at the core of many applications in computer vision.

motion prediction

EvaLDA: Efficient Evasion Attacks Towards Latent Dirichlet Allocation

1 code implementation9 Dec 2020 Qi Zhou, Haipeng Chen, Yitao Zheng, Zhen Wang

As one of the most powerful topic models, Latent Dirichlet Allocation (LDA) has been used in a vast range of tasks, including document understanding, information retrieval and peer-reviewer assignment.

document understanding Information Retrieval +3

Learning Behaviors with Uncertain Human Feedback

1 code implementation7 Jun 2020 Xu He, Haipeng Chen, Bo An

However, previous works rarely consider the uncertainty when humans provide feedback, especially in cases that the optimal actions are not obvious to the trainers.

M2P2: Multimodal Persuasion Prediction using Adaptive Fusion

no code implementations3 Jun 2020 Chongyang Bai, Haipeng Chen, Srijan Kumar, Jure Leskovec, V. S. Subrahmanian

Our M2P2 (Multimodal Persuasion Prediction) framework is the first to use multimodal (acoustic, visual, language) data to solve the IPP problem.

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