Experience

• 

  Lender Price

  • Full Stack Developer

    • May 2021 - Present

    Full stack software engineer

• 

  University of Arkansas

  • United States
  • Higher Education
  • 700 & Above Employee

  • Postodoctoral fellow

    • Jan 2020 - May 2021

    - Fairness in dynamic personalized recommender systems: • Designed a novel fairness metric for linear contextual bandits • Developed Fair-LinUCB that improves upon LinUCB to achieve group-level fairness of users • Designed a novel algorithm under the linear contextual bandit setting that transfers prior observations • Developed T-LinUCB that improves upon LinUCB to address the cold-start problem and cross-domain recommendations

  • Research Assistant

    • Jan 2014 - Dec 2019

    - Sentiment quantification on Twitter data: • Designed a formula to derive word's paired sentiment scores from Tweets to build a sentiment lexicon • Derived various sentiment features to represent Tweets for univariate SVM-based sentiment analysis • Compared several statistical distances that are optimized by a multivariate SVM to perform sentiment quantification- Sentiment shift detection over time: • Designed and defined sentiment signals/time-series based on a sentiment quantifier • Developed a geometric-based change-point detection algorithm for automatic sentiment shift detection- Sentiment Analysis on Amazon data: • Designed a statistical and information theoretic method to derive word's single sentiments score from Amazon reviews • Analyzed generic sentiment lexicons versus domain-specific lexicons • Compared the effectiveness of generic sentiment lexicon versus domain-specific lexicons for sentiment analysis- Recommender systems:• Designed and implemented a recommender system for CiteSeerX digital library for academic paper recommendations

  • Graduate Teaching Assistant

    • Aug 2014 - Aug 2019

    Programming Foundations I:• Taught weekly labs, designed course materials including labs and homework, held office hours, graded homework and examsProgramming Paradigms: • Held office hours, graded homework and examsMobile Programming: • Held office hours and graded homeworks

• 

  SupplyPike

  • Fayetteville, Arkansas, United States

  • Intern python backend developer

    • May 2017 - Aug 2017
    • Fayetteville, Arkansas, United States

    • Designed and implemented various supply chain-related web applications with Python Flask• Kept git repository synced and documented, designed unit testing cases

• 

  J.B. Hunt Transport, Inc.

  • Lowell, Arkansas

  • Intern java spring backend programmer

    • May 2015 - Aug 2015
    • Lowell, Arkansas

    • Developed a RESTful live chat web service and improved existing Java web services with Java Spring• Kept SVN repository synced, and wrote wiki documentation

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  University of Arkansas

  • Fayetteville, Arkansas

  • Research intern at University of Arkansas

    • Mar 2013 - Jul 2013
    • Fayetteville, Arkansas

    Autonomous navigation system for UAV:• Researched video-based obstacle detection for UAV Navigation and collision Avoidance for 360° camera with OpenCV

• 

  Low Power System Laboratory (LPS)

  • Taipei, Taiwan

  • Research intern at National Taiwan University of Science and Technology

    • Apr 2012 - Jul 2012
    • Taipei, Taiwan

    • Conception and development of an In-Vehicle infotainment system controlled by hand gesture.• The proposed system included a music player, video player, a weather forecast and ageolocalisation & GPS system. Implemented with C++, Qt framework.

• 

  CNRS

  • Dijon, France

  • Research Intern at LE2I

    • Apr 2009 - Jul 2009
    • Dijon, France

    • Improved an algorithm that transforms RDF into PROMELA. Decreased the running time by 99.8\%• Designed an algorithm that converts SPARQL queries into LTL logic for Spin and for NuSMV• Designed an algorithm that converts SPARQL queries into CTL logic