I'm a fourth-year Ph.D. student in the mathematics department at Tufts University, working with Bruce Boghosian.

Before coming to Tufts University, I got my bachelor's degree from Nankai University, China.

I am interested in the general areas of applied math. My recent research focuses on mathematical modeling on wealth distribution.

I'm also interested in machine learning, deep learning, computer vision, optimiation methods.

hongyan0627@gmail.com

My skills and specialties include:

• Programming Languages:
  
  • Working knowledge: Python, C/C++
  • Basic knowledge: Java, ML, Octave, SQL, HTML/CSS/JS
• Hands-on experience:
  
  • Machine learning with NumPy, Scipy, NLTK, sciki-learn, TensorFlow
  • Distributed system and networking
  • Development of web/mobile application with Ruby on Rails, WordPress, and Android Studio
  • Cloud computation with AWS and Google Cloud platform
• Comfortable in a Unix/Linux environment
• Strong domain knowledge of economics, policy, and environmental services.

Education

• Master of Science (MS), Computer Science, 3.5/4.0 Tufts University 2015 – 2016
• Post-Baccalaureate Certificate, Computer Science, 3.8/4.0 Tufts University 2014 – 2015

MS Project

Projects from Coursework

Category: Data Analysis and Machine Learning

• Text Classification (April 2016): trained a Naive Bayes text classifier and a MaxEnt text classifier from the classic Reuters corpus with NumPy and SciPy.
• Probabilistic Parsing (April 2016): built a PCFG Parser with NLTK, a Python natural language processing toolkit.
• Neutral Networks Learning (February 2016 – May 2016): implemented the backpropagation algorithm for neural networks in Octave (an open source alternative to MATLAB) and applied it to the task of hand-written digit recognition. It is one of the projects for Stanford’s Machine Learning course on the Coursera platform.

Category: Application Development

• Web-based Incident Reporting System (January 2016 – April 2016): a group project built with Ruby on Rails framework that allows people within an organization reporting and monitoring incidents. Techniques learned: data schema and wireframe, minimum viable product, unit testing, static content optimization, API design , polling and memory caching with Redis, messaging, chatbot development
• Popular Movie App (May 2015 – August 2015): an Android app helps users discover/view/save/favorite popular movies on mobile phone and tablet. It is a project for the Udacity course of developing Android apps. Techniques learned: Picasso image library, custom arrayAdapter, Parcelables, API calling, content providers, activity lifecycle, UX/UI adoption for tablet

Category: System Design and Implementation

• Unicode: Born for the Web (April 2016 – May 2016): an writing analysis of the history and design principles of the UTF-8, a family member of the Unicode Standard and the dominant character encoding on the Web
• RPC Generator (March 2016): a program takes as input an Interface Definition Language file (IDL) in the form of a very simple C++ compatible header (.h) and outputs the C++ source code for the proxy and the stub automatically.
• Understanding Latency Performance of Wi-Fi and LTE (September 2015 – November 2015): an investigation of the latency of Wi-Fi and LTE network based on measurement from a mobile device.
• Universal Machine (March 2015): an emulator written in C for a simple Turing-complete machine at the machine architecture/ISA level (14 instructions involved).

Other Relevant Experience

• IT Support Volunteer at International Chinese Reading Association (November 2016 – present)
  Maintain website and administrate the G Suite (Formerly Google Apps for Work‎)

• Teaching Assistant at Tufts University (September 2015 – December 2015)
  Held office hours and graded assignments/exams for course “Introduction to Computer Science in C++”.

• Founder at iTufts (September 2014 – Present)
  
• An organization aims to serve the Tufts Chinese Community and promote Tufts University in the Greater China area
• Establised two platforms: iTufts WeChat Official account (900+ followers as of Jan 2017) and itufts.org

Non-technical Background (before enrolling in Tufts)

Education

• M.S. in Economics, Huazhong Agricultural University, Wuhan City, China, 2008
• B.A. in Land Resource Management, Huazhong Agricultural University, Wuhan City, China, 2004

Work Experience

Served for several entities including an United Nations agency, duties included climate change policy analysis, emission reduction project development and due diligence, carbon trading portfolio management, wastewater treatment project development, ect.