Xiaoqi Chen

A curious and inquiring mind.

Hello!

I'm Xiaoqi, currently a first year PhD student at Department of Computer Science, Princeton University. Before joining Princeton, I received my Bachelor degree at Institute for Interdisciplinary Information Sciences, Tsinghua University, studying in the Computer Science Special Pilot Program (the "Yao-class").

My research interest includes network systems/architecture, network science, and Internet of Things/Cyber-Physical Systems. The inefficiency and fragility of today's networks motivate me to make tomorrow's network faster and more resilient.

 

Experience

Vocational Experience:
Research Intern, Computer Vision & Interaction Lab, Tsinghua University. (2015)

I worked with Prof. Linmi Tao in Hyperspectral Image (HSI) related projects. We adopted image hypersegmentation techinique in hyperspectral image processing and proposed a framework to efficiently analyze noise level in HSI, to help remote sensing satellites to save bandwidth for transferring HSIs.

Experimental verification showns our HSI analysis and selection can also benefit subsequent applications, compared with baseline methods. The results have been published in [1,2].

Visiting Student, Intelligent and Connected Systems Lab, Columbia University. (2015)

Supervised by Prof. Xiaofan Jiang, I worked on the Building Energy Footprint System project, to analyze personal energy consumption in shared building environment and provide personalized suggestions (published in [3,4]). I also participated several other Cyber-Physical Systems research projects.

Software Engineering Intern, Google. (2016)

I worked in the search infrastructure team to design and implemented an integration tool, to help deploying the new mobile indexing system on Google's next generation indexing system, and support the launch of mobile-first indexing in the mobile search era.

Research Intern, IIIS Systems Group, Tsinghua University. (2016)

I worked with Prof. Wei Xu on a source-routing software-defined networking (SDN) research project to optimize network performance in a data center network. I proposed and validated a source-routing algorithm with guaranteed redundancy for the network.

Teaching Experience:
Teaching Assistant: Operating Systems (Tsinghua University, Spring 2017)

Yao-class core curriculum course, instructor: Prof. Wei Xu.
I participated designing project assignment (distributed consensus database), as well as automated project grading and cross-grading. Collaborated with Peilun Li and Zhipeng Jia.

Project Design: Introduction to Computer Networks (Tsinghua University, Spring 2017)

Yao-class elective course, instructor: Prof. Longbo Huang.
I designed mini-experiment projects to bring hands-on experience (ARP, TCP/IP etc.) for students with no prior experience in computer networking.

Research Projects

Energy Footprint System in Shared Building Space
We harvested real-time energy consumption data from many sensor nodes and existing smart-building system components, to analyze each individual's energy impact in a shared building space, and generate personalized energy saving suggestions.
For each suggestion, the system can both calculate an approximated energy saving, and estimate a possible discomfort score for the recipient. We try to investigate and find the balance between these two optimization goals.
Stateless Data Center Networking
We proposed and implemented a stateless network, in which all packets embed their routes in the header, and the switches does not need to maintain any routing information.
To design and simulate the stateless routing is very easy; it is, however, challenging for the hosts in the network to discover the topology and achieve fault-tolerance for link failure.
 

Publications

  1. AB3C: Adaptive boundary based band-categorization of hyperspectral images
    Atif Mughees, Xiaoqi Chen, Rucheng Du, Linmi Tao. Journal of Applied Remote Sensing, 10(4), 046009 (2016).
    DOI: 10.1117/1.JRS.10.046009
  2. Unsupervised Hyperspectral Image Segmentation: Merging Spectral and Spatial Information in Boundary Adjustment
    Atif Mughees, Xiaoqi Chen, Linmi Tao. 55th Annual Conference of the Society of Instrument and Control Engineers of Japan (SICE 2016).
    DOI: 10.1109/SICE.2016.7749195
  3. Poster Abstract: Personal Energy Footprint in Shared Building Environment
    Xiaoqi Chen, Rishikanth Chandrasekaran, Fengyi Song, Xiaofan Jiang. 15th ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN 2016).
    DOI: 10.1109/IPSN.2016.7460710
  4. Poster Abstract: Adaptive and Personalized Energy Saving Suggestions for Occupants in Smart Buildings
    Peter Wei, Xiaoqi Chen, Rishikanth Chandrasekaran, Fengyi Song, Xiaofan Jiang. 3rd ACM International Conference on Systems for Energy-Efficient Built Environments (BuildSys 2016).
    Best Poster Award at BuildSys 2016.
    DOI: 10.1145/2993422.2996412
  5. 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, Xiaofan Jiang. 4th ACM International Conference on Systems for Energy-Efficient Built Environments (BuildSys 2017).
    Best paper runner-up at BuildSys 2017.  
  6. DumbNet: A Smart Data Center Network Fabric with Dumb Switches
    Yiran Li, Da Wei, Xiaoqi Chen, Ziheng Song, Ruihan Wu, Yuxing Li, Xin Jin, Wei Xu. To appear in The 13th European Conference on Computer Systems (EuroSys 2018).
     

Honors & Awards

  • Tsinghua University Freshmen Scholarship, 2nd tier, 2013.
  • Tsinghua University Science Technology Excellence Scholarship, 2014.
  • Baidu Scholar's Scholarship, 3rd prize, 2016.
  • Microsoft Beauty of Programming Contest, Finalist & 2nd place, 2014; Finalist & 2nd place, The Best Team Award, 2015.
  • Tsinghua Electric Design Contest, 2nd prize (4th place), 2015.
 

Miscellaneous

  • I love playing badminton and soccer, and I played in the IIIS varsity soccer team at Tsinghua's interdepartmental league.
  • Did you know []*[]=0 and []+[]=""? I write javascript for fun! I also used it for web development in many projects.
  • I served as a member of the Advisory Committee of Undergraduate Curriculum at Tsinghua University, and participated in designing the new 4.0-scale GPA system for the university.