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Ran Liu

Institute for Computational Medicine, the Johns Hopkins University, Department of Biomedical Engineering, the Johns Hopkins University School of Medicine and Whiting School of Engineering

Dual Band GNSS Antenna Phase Center Characterization for Automotive Applications

Ran Liu , Daniel N. Aloi

* International Journal of Antennas (JANT) Vol.7, No.2/3/4, October 2021 
* 19 pages, 16 figures, 3 tables 

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Drop, Swap, and Generate: A Self-Supervised Approach for Generating Neural Activity

Ran Liu , Mehdi Azabou , Max Dabagia , Chi-Heng Lin , Mohammad Gheshlaghi Azar , Keith B. Hengen , Michal Valko , Eva L. Dyer

* To be published in Neurips 2021 

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Collaborative Radio SLAM for Multiple Robots based on WiFi Fingerprint Similarity

Ran Liu , Zhenghong Qin , Hua Zhang , Billy Pik Lik Lau , Khairuldanial Ismail , Achala Athukorala , Chau Yuen , Yong Liang Guan , U-Xuan Tan

* Accepted by 2021 IEEE International Conference on Robotics and Biomimetics, Sanya, China 

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Relative Localization of Mobile Robots with Multiple Ultra-WideBand Ranging Measurements

Zhiqiang Cao , Ran Liu , Chau Yuen , Achala Athukorala , Benny Kai Kiat Ng , Muraleetharan Mathanraj , U-Xuan Tan

* Accepted by the 2021 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2021), Prague, Czech Republic 

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Offline reinforcement learning with uncertainty for treatment strategies in sepsis

Ran Liu , Joseph L. Greenstein , James C. Fackler , Jules Bergmann , Melania M. Bembea , Raimond L. Winslow

* 25 pages, 8 figures 

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Cost-effective Mapping of Mobile Robot Based on the Fusion of UWB and Short-range 2D LiDAR

Ran Liu , Yongping He , Chau Yuen , Billy Pik Lik Lau , Rashid Ali , Wenpeng Fu , Zhiqiang Cao


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Understand and Improve Contrastive Learning Methods for Visual Representation: A Review

Ran Liu

* 12 pages, 5 figures 

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WiFi Fingerprint Clustering for Urban Mobility Analysis

Sumudu HasalaMarakkalage , Billy Pik Lik Lau , Yuren Zhou , Ran Liu , Chau Yuen , Wei Quin Yow , Keng Hua Chong

* accepted by IEEE Access 

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