Stephen Xia

Ph.D. Candidate
Department of Electrical Engineering
Columbia University

I am a PhD. student in the Department of Electrical Engineering, Columbia University, studying under the supervision of Dr. Xiaofan Jiang. My research lies at the intersection of data analytics, artificial intelligence, and cyber-physical systems, and is focused on designing the next generation of safety-aware Internet of Things platforms. Currently, my research focuses on designing wearables, sensing technologies, and cyber-physical systems for urban safety and connected health.

Email: stephen.xia at columbia.edu
Office: Northwest Corner Building, Floor 10M
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Education

Columbia University

Ph.D. Electrical Engineering | 09/2016 - 05/2021 (Expected)

M.S. Electrical Engineering | 09/2016 - 02/2018

Rice University

B.S. Electrical Engineering | 09/2013 - 05/2016

Work Experience

Summer 2015

National Instruments

Software Engineering Intern

Austin, TX, USA

Summer 2014

Hewlett-Packard

Technical Software Intern

Houston, TX, USA

Teaching Experience

Columbia University

Teaching Assistant

Fall 2016 | EECS 4764: Internet of Things - Intelligent and Connected Systems
Spring 2017 | EECS 6765: Internet of Things - Systems and Physical Data Analytics
Spring 2018 | EECS 6765: Internet of Things - Systems and Physical Data Analytics
Fall 2018 | EECS 4764: Internet of Things - Intelligent and Connected Systems

Rice University

Undergraduate Course Assistant

Spring 2015 | ELEC 301: Discrete Time Signals and Systems on edX
Spring 2014 | ELEC 241: Fundamentals of Electrical Engineering on edX

Skills

I am proficient in C/C++, MATLAB, Java, Python, and Android development. I also have experience in Verilog, ARM, HTML, PHP, JavaScript, and LabView programming. Tools and and packages that I have experience using include: Network Simulator, EAGLE, Altium CircuitMaker, CuDa, Theano, OpenCV. Platforms that I have used for prototyping and development include: Raspberry Pi, Arduino, STM32, Nordic nRF series, Feather series, Intel Edison, and MSP430.

Projects

City-Wide Infrastructure for Urban Safety

Pedestrian Safety in Urban Environments using Intelligent Wearables

Intelligent Leg Shaking Detection using Personal Smartphones

Other Activities and Awards

Wireless Neural Recorder

Over-the-Air Study of Wireless Denial-of-Service Attacks

Selective Transparent Headphones

DocTouch

Publications

2018 | IEEE Internet of Things Journal
Improving pedestrian safety in cities using intelligent wearable systems (under review)
Stephen Xia, Daniel de Godoy, Bashima Islam, Md Tamzeed Islam, Shahriar Nirjon, Peter Kinget, and Xiaofan Jiang

2018 | IEEE Sensors
Conductive thread-based textile sensor for continuous perspiration level monitoring (under review)
Ji Jia, Chengtian Xu, Shijia Pan, Stephen Xia, Peter Wei, Hae Young Noh, Pei Zhang, and Xiaofan Jiang

2018 | ACM UbiComp
Moisture based perspiration level estimation (to appear)
Ji Jia, Chengtian Xu, Shijia Pan, Stephen Xia, Peter Wei, Hae Young Noh, Pei Zhang, and Xiaofan Jiang

2018 | Elsevier SmartHealth
Spindles+: an adaptive and personalized system for leg shake detection
Stephen Xia, Peter Wei, Jordan Misael Vega, and Xiaofan Jiang

2018 | Elsevier SmartHealth
Intelligent and privacy-preserving medication adherence system
Ji Jia, Jinyang Yu, Raghavendra Sirigeri Hanumesh, Stephen Xia, Peter Wei, Hyunmi Choi, and Xiaofan Jiang

2018 | ACM UMAP
Energy saving recommendations and user location modeling in commercial buildings
Peter Wei, Stephen Xia, and Xiaofan Jiang

2018 | IEEE/ACM IoTDI
Paws: a wearable acoustic system for pedestrian safety
Daniel de Godoy, Bashima Islam, Stephen Xia, Md Tamzeed Islam, Rishikanth Chandrasekaran, Yen-Chun Chen, Shahriar Nirjon, Peter Kinget, and Xiaofan Jiang

2018 | IEEE/ACM IoTDI
Demo abstract: an ultra-low-power custom integrated circuit based sound-source localization system
Daniel de Godoy, Stephen Xia, Wendy Fernandez, Xiaofan Jiang, and Peter Kinget

2017 | ACM BuildSys
ePrints: a real-time and scalable system for fair apportionment and tracking of personal energy footprints in commercial buildings
Peter Wei, Xiaoqi Chen, Jordan Vega, Stephen Xia, Rishikanth Chandrasekaran, and Xiaofan Jiang
[Best Paper - Runner Up Award]

2017 | ACM UbiComp
Spindles: a smartphone platform for intelligent detection and notification of leg shaking
Stephen Xia, Yan Lu, Peter Wei, and Xiaofan Jiang

2016 | ACM SenSys
SEUS: a wearable multi-channel acoustic headset platform to improve pedestrian safety: demo abstract
Rishikanth Chandrasekaran, Daniel de Godoy, Stephen Xia, Md Tamzeed Islam, Bashima Islam, Shahriar Nirjon, Peter Kinget, and Xiaofan Jiang
[Best Demo - Runner Up Award]