Search Results for author: Rui Ai

Found 11 papers, 5 papers with code

S4TP: Social-Suitable and Safety-Sensitive Trajectory Planning for Autonomous Vehicles

no code implementations18 Apr 2024 Xiao Wang, Ke Tang, Xingyuan Dai, Jintao Xu, Quancheng Du, Rui Ai, Yuxiao Wang, Weihao Gu

To effectively assess the risks prevailing in the vicinity of AVs in social interactive traffic scenarios and achieve safe autonomous driving, this article proposes a social-suitable and safety-sensitive trajectory planning (S4TP) framework.

Autonomous Driving Motion Planning +2

ModaLink: Unifying Modalities for Efficient Image-to-PointCloud Place Recognition

1 code implementation27 Mar 2024 Weidong Xie, Lun Luo, Nanfei Ye, Yi Ren, Shaoyi Du, Minhang Wang, Jintao Xu, Rui Ai, Weihao Gu, Xieyuanli Chen

Experimental results on the KITTI dataset show that our proposed methods achieve state-of-the-art performance while running in real time.

Depth Estimation

Cam4DOcc: Benchmark for Camera-Only 4D Occupancy Forecasting in Autonomous Driving Applications

1 code implementation29 Nov 2023 Junyi Ma, Xieyuanli Chen, Jiawei Huang, Jingyi Xu, Zhen Luo, Jintao Xu, Weihao Gu, Rui Ai, Hesheng Wang

Furthermore, the standardized evaluation protocol for preset multiple tasks is also provided to compare the performance of all the proposed baselines on present and future occupancy estimation with respect to objects of interest in autonomous driving scenarios.

Autonomous Driving

WeatherDepth: Curriculum Contrastive Learning for Self-Supervised Depth Estimation under Adverse Weather Conditions

1 code implementation9 Oct 2023 Jiyuan Wang, Chunyu Lin, Lang Nie, Shujun Huang, Yao Zhao, Xing Pan, Rui Ai

In this paper, we propose WeatherDepth, a self-supervised robust depth estimation model with curriculum contrastive learning, to tackle performance degradation in complex weather conditions.

Contrastive Learning Depth Estimation +2

I2P-Rec: Recognizing Images on Large-scale Point Cloud Maps through Bird's Eye View Projections

no code implementations2 Mar 2023 Shuhang Zheng, Yixuan Li, Zhu Yu, Beinan Yu, Si-Yuan Cao, Minhang Wang, Jintao Xu, Rui Ai, Weihao Gu, Lun Luo, Hui-Liang Shen

The experimental results evaluated on the KITTI dataset show that, with only a small set of training data, I2P-Rec achieves recall rates at Top-1\% over 80\% and 90\%, when localizing monocular and stereo images on point cloud maps, respectively.

Depth Estimation

SuperFusion: Multilevel LiDAR-Camera Fusion for Long-Range HD Map Generation

1 code implementation28 Nov 2022 Hao Dong, Xianjing Zhang, Jintao Xu, Rui Ai, Weihao Gu, Huimin Lu, Juho Kannala, Xieyuanli Chen

However, current works are based on raw data or network feature-level fusion and only consider short-range HD map generation, limiting their deployment to realistic autonomous driving applications.

Autonomous Driving Depth Estimation

On the Re-Solving Heuristic for (Binary) Contextual Bandits with Knapsacks

no code implementations25 Nov 2022 Rui Ai, Zhaohua Chen, Xiaotie Deng, Yuqi Pan, Chang Wang, Mingwei Yang

To the best of our knowledge, this is the first $\widetilde O(1)$ regret result in the CBwK problem regardless of information feedback models.

Management Multi-Armed Bandits

A Reinforcement Learning Approach in Multi-Phase Second-Price Auction Design

no code implementations19 Oct 2022 Rui Ai, Boxiang Lyu, Zhaoran Wang, Zhuoran Yang, Michael I. Jordan

First, from the seller's perspective, we need to efficiently explore the environment in the presence of potentially nontruthful bidders who aim to manipulates seller's policy.

reinforcement-learning Reinforcement Learning (RL)

Efficient Spatial-Temporal Information Fusion for LiDAR-Based 3D Moving Object Segmentation

1 code implementation5 Jul 2022 Jiadai Sun, Yuchao Dai, Xianjing Zhang, Jintao Xu, Rui Ai, Weihao Gu, Xieyuanli Chen

We also use a point refinement module via 3D sparse convolution to fuse the information from both LiDAR range image and point cloud representations and reduce the artifacts on the borders of the objects.

Autonomous Driving Collision Avoidance +1

No-regret Learning in Repeated First-Price Auctions with Budget Constraints

no code implementations29 May 2022 Rui Ai, Chang Wang, Chenchen Li, Jinshan Zhang, Wenhan Huang, Xiaotie Deng

Recently the online advertising market has exhibited a gradual shift from second-price auctions to first-price auctions.

Survival Analysis

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