Search Results for author: Jianjin Zhang

Found 8 papers, 5 papers with code

Progressively Optimized Bi-Granular Document Representation for Scalable Embedding Based Retrieval

2 code implementations14 Jan 2022 Shitao Xiao, Zheng Liu, Weihao Han, Jianjin Zhang, Yingxia Shao, Defu Lian, Chaozhuo Li, Hao Sun, Denvy Deng, Liangjie Zhang, Qi Zhang, Xing Xie

In this work, we tackle this problem with Bi-Granular Document Representation, where the lightweight sparse embeddings are indexed and standby in memory for coarse-grained candidate search, and the heavyweight dense embeddings are hosted in disk for fine-grained post verification.

Quantization Retrieval

PredRNN: A Recurrent Neural Network for Spatiotemporal Predictive Learning

3 code implementations17 Mar 2021 Yunbo Wang, Haixu Wu, Jianjin Zhang, Zhifeng Gao, Jianmin Wang, Philip S. Yu, Mingsheng Long

This paper models these structures by presenting PredRNN, a new recurrent network, in which a pair of memory cells are explicitly decoupled, operate in nearly independent transition manners, and finally form unified representations of the complex environment.

 Ranked #1 on Video Prediction on KTH (Cond metric)

Video Prediction Weather Forecasting

Towards Good Practices of U-Net for Traffic Forecasting

1 code implementation4 Dec 2020 Jingwei Xu, Jianjin Zhang, Zhiyu Yao, Yunbo Wang

This technical report presents a solution for the 2020 Traffic4Cast Challenge.

Z-Order Recurrent Neural Networks for Video Prediction

no code implementations IEEE International Conference on Multimedia and Expo (ICME) 2019 Jianjin Zhang, Yunbo Wang, Mingsheng Long, Wang Jianmin, Philip S Yu

First, we propose a new RNN architecture for modeling the deterministic dynamics, which updates hidden states along a z-order curve to enhance the consistency of the features of mirrored layers.

 Ranked #1 on Video Prediction on KTH (Cond metric)

Video Prediction

Learning Fast Matching Models from Weak Annotations

no code implementations30 Jan 2019 Xue Li, Zhipeng Luo, Hao Sun, Jianjin Zhang, Weihao Han, Xianqi Chu, Liangjie Zhang, Qi Zhang

The proposed training framework targets on mitigating both issues, by treating the stronger but undeployable models as annotators, and learning a deployable model from both human provided relevance labels and weakly annotated search log data.

Memory In Memory: A Predictive Neural Network for Learning Higher-Order Non-Stationarity from Spatiotemporal Dynamics

4 code implementations CVPR 2019 Yunbo Wang, Jianjin Zhang, Hongyu Zhu, Mingsheng Long, Jian-Min Wang, Philip S. Yu

Natural spatiotemporal processes can be highly non-stationary in many ways, e. g. the low-level non-stationarity such as spatial correlations or temporal dependencies of local pixel values; and the high-level variations such as the accumulation, deformation or dissipation of radar echoes in precipitation forecasting.

Precipitation Forecasting Time Series Forecasting +1

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