Search Results for author: Congcong Liu

Found 22 papers, 2 papers with code

K-UNN: k-Space Interpolation With Untrained Neural Network

1 code implementation11 Aug 2022 Zhuo-Xu Cui, Sen Jia, Qingyong Zhu, Congcong Liu, Zhilang Qiu, Yuanyuan Liu, Jing Cheng, Haifeng Wang, Yanjie Zhu, Dong Liang

Recently, untrained neural networks (UNNs) have shown satisfactory performances for MR image reconstruction on random sampling trajectories without using additional full-sampled training data.

Image Reconstruction

Gaze Training by Modulated Dropout Improves Imitation Learning

no code implementations17 Apr 2019 Yuying Chen, Congcong Liu, Lei Tai, Ming Liu, Bertram E. Shi

The basic idea behind behavioral cloning is to have the neural network learn from observing a human expert's behavior.

Autonomous Driving Imitation Learning

Utilizing Eye Gaze to Enhance the Generalization of Imitation Networks to Unseen Environments

no code implementations10 Jul 2019 Congcong Liu, Yuying Chen, Lei Tai, Ming Liu, Bertram Shi

Vision-based autonomous driving through imitation learning mimics the behaviors of human drivers by training on pairs of data of raw driver-view images and actions.

Autonomous Driving Imitation Learning

AVGCN: Trajectory Prediction using Graph Convolutional Networks Guided by Human Attention

no code implementations14 Jan 2021 Congcong Liu, Yuying Chen, Ming Liu, Bertram E. Shi

We suggest that introducing an attention mechanism to infer the importance of different neighbors is critical for accurate trajectory prediction in scenes with varying crowd size.

Pedestrian Trajectory Prediction Trajectory Prediction

Dynamic Parameterized Network for CTR Prediction

no code implementations9 Nov 2021 Jian Zhu, Congcong Liu, Pei Wang, Xiwei Zhao, Guangpeng Chen, Junsheng Jin, Changping Peng, Zhangang Lin, Jingping Shao

Learning to capture feature relations effectively and efficiently is essential in click-through rate (CTR) prediction of modern recommendation systems.

Click-Through Rate Prediction Recommendation Systems

On the Adaptation to Concept Drift for CTR Prediction

no code implementations1 Apr 2022 Congcong Liu, Yuejiang Li, Fei Teng, Xiwei Zhao, Changping Peng, Zhangang Lin, Jinghe Hu, Jingping Shao

Click-through rate (CTR) prediction is a crucial task in web search, recommender systems, and online advertisement displaying.

Click-Through Rate Prediction Incremental Learning +1

PCDF: A Parallel-Computing Distributed Framework for Sponsored Search Advertising Serving

no code implementations26 Jun 2022 Han Xu, Hao Qi, Kunyao Wang, Pei Wang, Guowei Zhang, Congcong Liu, Junsheng Jin, Xiwei Zhao, Zhangang Lin, Jinghe Hu, Jingping Shao

In this work, we propose a novel framework PCDF(Parallel-Computing Distributed Framework), allowing to split the computation cost into three parts and to deploy them in the pre-module in parallel with the retrieval stage, the middle-module for ranking ads, and the post-module for re-ranking ads with external items.

Click-Through Rate Prediction Re-Ranking +1

Meta-Learning Enabled Score-Based Generative Model for 1.5T-Like Image Reconstruction from 0.5T MRI

no code implementations4 May 2023 Zhuo-Xu Cui, Congcong Liu, Chentao Cao, Yuanyuan Liu, Jing Cheng, Qingyong Zhu, Yanjie Zhu, Haifeng Wang, Dong Liang

We theoretically uncovered that the combination of these challenges renders conventional deep learning methods that directly learn the mapping from a low-field MR image to a high-field MR image unsuitable.

Image Reconstruction Meta-Learning

Confidence Ranking for CTR Prediction

no code implementations28 Jun 2023 Jian Zhu, Congcong Liu, Pei Wang, Xiwei Zhao, Zhangang Lin, Jingping Shao

Model evolution and constant availability of data are two common phenomena in large-scale real-world machine learning applications, e. g. ads and recommendation systems.

Click-Through Rate Prediction Recommendation Systems

Physics-Informed DeepMRI: Bridging the Gap from Heat Diffusion to k-Space Interpolation

no code implementations30 Aug 2023 Zhuo-Xu Cui, Congcong Liu, Xiaohong Fan, Chentao Cao, Jing Cheng, Qingyong Zhu, Yuanyuan Liu, Sen Jia, Yihang Zhou, Haifeng Wang, Yanjie Zhu, Jianping Zhang, Qiegen Liu, Dong Liang

In order to enhance interpretability and overcome the acceleration limitations, this paper introduces an interpretable framework that unifies both $k$-space interpolation techniques and image-domain methods, grounded in the physical principles of heat diffusion equations.

Dynamic Dual-Graph Fusion Convolutional Network For Alzheimer's Disease Diagnosis

no code implementations5 Aug 2023 Fanshi Li, Zhihui Wang, Yifan Guo, Congcong Liu, Yanjie Zhu, Yihang Zhou, Jun Li, Dong Liang, Haifeng Wang

In this paper, a dynamic dual-graph fusion convolutional network is proposed to improve Alzheimer's disease (AD) diagnosis performance.

Graph Learning

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