Zhongwen Xu

Research Scientist
DeepMind

[Google Scholar] [DBLP] [Linkedin]

Email:

Bio. I am a Research Scientist at DeepMind, focusing on Deep Reinforcement Learning. I pursued my Ph.D. at University of Technology Sydney (UTS), advised by Prof. Yi Yang. I received my Bachelor's degree from Zhejiang University in 2013, under the supervision of Prof. Yueting Zhuang and Prof. Fei Wu.

I spent two fabulous internships in Alphabet/Google's AI groups. In Spring 2017, I was a research intern at DeepMind, working with Dr. Hado van Hasselt and Prof. David Silver. And in Spring 2016, I was a research intern at Google Brain, working with Dr. Pierre Sermanet and Dr. George Toderici.

I visited Carnegie Mellon University in 2012 and 2014, hosted by Dr. Alexander G. Hauptmann. In 2014, I visited National University of Singapore, working with Prof. Shuicheng Yan.

More details can be found in my CV.


PUBLICATIONS

Natural Value Approximators: Learning When to Trust Past Estimates.
Zhongwen Xu, Joseph Modayil, Hado van Hasselt, Andre Barreto, David Silver and Tom Schaul
NIPS 2017 (Spotlight)

Few-Shot Object Recognition from Machine-Labeled Web Images
Zhongwen Xu*, Linchao Zhu* and Yi Yang
CVPR 2017 (Spotlight) [Code] [Spotlight Video]

Bidirectional Multirate Reconstruction for Temporal Modeling in Videos
Linchao Zhu, Zhongwen Xu and Yi Yang
CVPR 2017 (Spotlight) [Code]

Uncovering Temporal Context for Video Question Answering
Linchao Zhu, Zhongwen Xu, Yi Yang and Alexander G. Hauptmann
IJCV 2017 [arXiv] [Dataset]

An End-to-End Approach to Natural Language Object Retrieval via Context-Aware Deep Reinforcement Learning
Fan Wu, Zhongwen Xu and Yi Yang
arXiv preprint 1703.07579 [Code]

Hierarchical Recurrent Neural Encoder for Video Representation with Application to Captioning
Pingbo Pan, Zhongwen Xu, Yi Yang, Fei Wu and Yueting Zhuang
CVPR 2016 [PDF]

Robust Semi-supervised Learning through Label Aggregation
Yan Yan, Zhongwen Xu, Ivor W. Tsang, Guodong Long and Yi Yang
AAAI 2016 [PDF]

A Discriminative CNN Video Representation for Event Detection
Zhongwen Xu, Yi Yang and Alexander G. Hauptmann
CVPR 2015 [PDF] [Features (Dropbox) (Baidu Yun)] [Labels and Evaluation]
The features will be used solely for research purposes.

Content-Based Video Search over 1 Million Videos with 1 Core in 1 Second
Shoou-I Yu, Lu Jiang, Zhongwen Xu, Yi Yang and Alexander G. Hauptmann
ICMR 2015

Event Detection Using Multi-level Relevance Labels and Multiple Features
Zhongwen Xu, Ivor W. Tsang, Yi Yang, Zhigang Ma and Alexander G. Hauptmann
CVPR 2014 [PDF]

Feature Weighting via Optimal Thresholding for Video Analysis
Zhongwen Xu, Yi Yang, Ivor W. Tsang, Nicu Sebe and Alexander G. Hauptmann
ICCV 2013 [PDF]

How Related Exemplars Help Complex Event Detection in Web Videos?
Yi Yang, Zhigang Ma, Zhongwen Xu, Shuicheng Yan and Alexander G. Hauptmann
ICCV 2013 [PDF]

Complex Event Detection via Multi-source Video Attributes
Zhigang Ma, Yi Yang, Zhongwen Xu, Shuicheng Yan, Nicu Sebe and Alexander G. Hauptmann
CVPR 2013 [PDF]

We Are Not Equally Negative: Fine-grained Labeling for Multimedia Event Detection
Zhigang Ma, Yi Yang, Zhongwen Xu, Nicu Sebe and Alexander G. Hauptmann
ACM Multimedia 2013


COMPETITIONS

UTS-CMU at THUMOS 2015
Zhongwen Xu, Linchao Zhu, Yi Yang and Alexander G. Hauptmann
THUMOS challenge 2015
[Ranked 1st place] [PDF] [THUMOS Challenge]
[Features: Dropbox/BaiduYun] [Our pre-trained Inception-BN model]

Cross-media Relevance Mining for Evaluating Text-based Image Search Engine
Zhongwen Xu, Yi Yang, Ashraf A. Kassim and Shuicheng Yan
ICME MSR-Bing Grand Challenge Workshop 2014
[Ranked 1st place] [PDF] [MSR-Bing Image Retrieval Challenge (IRC)]

Informedia@TRECVID 2014 MED and MER
Shoou-I Yu, Lu Jiang, Zhongwen Xu, et al. and Alexander G. Hauptmann
TRECVID Workshop 2014
[Ranked 1st place in MED] [PDF] [TRECVID Multimedia Event Detection 2014]

ILSVRC (ImageNet) 2014 Classification with Provided Data Only
Zhongwen Xu and Yi Yang
[Ranking: Google, VGG, MSRA, Howard, DeepVision, NUS, TTIC, XYZ (ours)] [link]

Informedia E-Lamp @ TRECVID 2012 Multimedia Event Detection and Recounting (MED and MER)
Shoou-I Yu, Zhongwen Xu, Duo Ding, et al. and Alexander G. Hauptmann
TRECVID Workshop 2012
[Ranked 1st place in Pre-specific events, 2nd place in Ad-hoc events] [PDF]
[TRECVID Multimedia Event Detection 2012]


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