Mountain View, California, United States
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Experience & Education

  • Carnegie Mellon University

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  • ****** ********* ** **********

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Courses

  • Advanced Engineering Computation

    24783

  • Artificial Intelligence and Machine Learning

    24-787

  • C Programming Language

    -

  • Cloud Computing

    15-619

  • Data Structures for Application Programmers

    08-722

  • Distributed System

    15-640

  • Engineering Computation

    24-780

  • Fundamental of Programming and Computer Science

    15-112

  • Introduction to Computer Science

    -

  • Introduction to Computer System

    15-213

  • Linux and Open Source

    95-799

  • Machine Learning

    10-601

  • Math Fundamentals for Robotics

    16-811

  • Numerical Methods in Engineering

    24-703

  • Principles of Software Construction

    15-214

  • Storage System

    15-746

Projects

  • Driver Matching Service via Big Data Stream Processing

    -Developed a Uber-like driver matching system by using Apache Kafka and Samza to provide distributed, fault-tolerant and scalable processing service.
    -Integrated multiple streams of GPS data to generate a dynamic surge pricing scheme for the system.

  • Distributed Bitcoin Miner

    -Implemented the Live Sequence Protocol(LSP) to provide reliable communication on top of UDP.
    -Incorporated sliding window and epoch event with LSP to handle messages reordering and dropping.
    -Built a distributed Bitcoin Miner based on the above LSP to provide powerful computing service.

  • High Performance Twitter Data Analytics System

    -Led a three-person developer team to build a high performance, fault-tolerant web service for analyzing over 1TB Twitter data to handle high query loads with throughput.
    -Filtered raw data using ETL process with MapReduce, and used MySQL/HBase as back-end database.
    -Utilized Vert.x web framework, Redis and Nginx to achieve high performance with in-memory caching, reverse proxy and load balancing scheme on top of AWS.

    Other creators

  • Tribbler - A Distributed Information Dissemination Service

    -Implemented an RPC-based twitter-like service with a classical 3-tier architecture.
    -Utilized consistent hashing for data partitioning, and implemented a lease-based caching mechanism for frequently-accessed data to improve the scalability of the system.
    -Conducted benchmark for the service using stressful tests with high client requests.

  • myFTL - A Flash Translation Layer(FTL) for an Emulated SSD

    -Utilized hybrid log-block mapping scheme to handle address translation with logging.
    -Implemented four cleaning policies(FIFO, LRU, Greedy and LFS Cost-Benefit) for garbage collection.
    -Designed and implemented own wear leveling scheme with dynamic mapping and cold block swapping.

  • Social Network Analysis Framework

    -Designed a real-time analysis framework that can fetch and analyze data from social networks in Java.
    -Provided flexible APIs for further extension and developed plugins for multiple social networks: Twitter, Facebook and GitHub.
    -Conducted emotion analysis and visualized words cloud based on the Twitter posts using Standford NLP package.

    Other creators

  • Tiny MapReduce Framework

    -Implemented a tiny MapReduce framework using parallel and concurrent programming.
    -Included fail-recovery function to restore task in failure of workers by heartbeat monitoring.
    -Implemented a simple distributed file system to support file backup and transfer among machines.

  • Scrabble Game - Software Design and Testing Project

    -Conducted Object-oriented Design with Domain Model, Object Model and UML diagram.
    -Implemented Scrabble Game with GUI using Java Swing and MVC model.
    -Used JUnit for software testing, Gradle for build automation and Travis CI for continuous integration.

  • Dynamic Storage Allocator

    -Implemented a simple dynamic memory allocator supporting - malloc, free, calloc, realloc function calls.
    -Optimized throughput and memory utilization using segregated doubly linked lists and red-black tree.

  • Multithreading Caching Web Proxy

    -Designed and implemented a concurrent (multithreading) HTTP web proxy that caches web objects using the LRU replacement policy.
    -Used pthreads and various synchronization mechanisms for handling multiple connections and used POSIX sockets API to handle network connections.

  • Panorama Generator and 3D Viewer

    -Implemented with GUI to stitch multiple images to generate the panorama picture by matching SIFT key points, optimized the stitching effect by implementing blending algorithm.
    -Built a 3D panorama viewer for users to show the image in spherical or cylindrical coordinate using Python Image Library(PIL).

Languages

  • English

    Full professional proficiency

  • Chinese

    Native or bilingual proficiency

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