Download PDF

Summary

Yuyu is enthusiasm for data mining and machine learning and like to research the new technology. He has previously worked for Juvo+ as a data analysis and data science, with the responsibility of building sales forecasting systems and using machine learning skill to help company. He also focus on deep learning and has strong skill to use R to data wrangling, build the machine learning system and data visualization.

Work Experience

Mar 2016Jan 2017

Data Analyst

Juvo+
  • Build a sales forecasting system for replenishment

Using the exponential smoothing method to forecast the sales quantity for next month and help the purchase & order department through historical data to decide the replenishment quantity.

  • Seasonal product detection analysis

Through exponential smoothing model and chi-square test for detection product sales have a seasonal pattern. 

  • Products sales rank and sales quantity relationship analysis on Amazon

Analysis relationship between sales rank and sales quantity and building model to predict the sales quantity by different sales rank in different categories using negative binomial regression.

  • Unauthorized seller detection analysis

Analysis historical data find an unauthorized seller pattern. 

  • Web crawler & selenium
Jul 2014Feb 2016

Data Analyst

Cheetah Mobile
  • User feedback data analysis and system establishment

Through text mining to design user feedback patterns and use the naive Bayes method to build the classification model. Help operation department filters almost 90 percent spam data.

  • Data visualization for user's feedback analysis

Establishing the interactive visualization web that explores the data use shiny server.

  • Privacy URL detection analysis

Using web crawler and text mining to detect the website is or not a privacy website.

  • Free WIFI detection analysis

Detecting the free WIFI through the historical data form app. 

  • Automation reply system on google play platform

Auto reply the user's feedback message on google play platform.

  • Web crawler
    Jul 2013Apr 2014

    RMA(Return Merchandise Authorization) Quality Analyst

    GIGA-BYTE TECHNOLOGY CO., LTD.
    • Job responsibilities:
    1. RMA data analysis
    2. Components preparing and prediction
    3. VGA mining performance testing
    4. Examination and expense analysis
    5. To deal with all of issues with sales and customers
    • Projects experience:
    1. Components preparing and prediction model building
    2. Planning process of GPU repair and sales return
    3. VGA mining, testing and analysis
    4. Yield rate analysis with factories

    Education

    20092011

    Department of Statistics, Master's degree

    Feng Chia University
    20042009

    Department of Statistics, Bachelor's degree

    Ming Chuan University

    Certifications

    Feb 2017Present

    Machine Learning

    Coursera.org

    https://www.coursera.org/account/accomplishments/certificate/JSNE5CYQ4FDG

    Feb 2017Present

    Data Science: Deep Learning in Python

    udemy.com

    https://www.udemy.com/certificate/UC-0NYWYTAM/

    Jan 2017Present

    Machine Learning A-Z™: Hands-On Python & R In Data Science

    udemy.com

    https://www.udemy.com/certificate/UC-TFHKWIG9/

    Mar 2015Present

    巨量資料分析-使用RHadoop

    INSTITUTE FOR INFORMATION INDUSTRY

    將學習如何使用RHadoop架構資料分析平台等關鍵技術:包含學習到該如何使用R進行資料探索與分析、如何透過Hadoop Eco System 建立分析應用流程,及學習如何使用RHadoop實際建構分析與應用平台。

    Sep 2014Present

    Python資料探勘實作

    INSTITUTE FOR INFORMATION INDUSTRY

    採用Python語言做為資料探勘工具,提升學員運用統計與機器學習手法於企業資料處理與分析的實作應用能力。

    Apr 2014Present

    R軟體與資料探勘

    INSTITUTE FOR INFORMATION INDUSTRY

    採用R語言做為資料探勘的工具與提升R語言在資料探勘的程式撰寫能力

    Skills

    Deep Learning
    Machine Learning
    Data Mining
    Data Analysis
    Data Vaisualiztion
    TensorFlow
    R
    Python
    MySQL

    Research experience

    • Predicting NBA games

    Predicting the games result through NBA box-score and advance data using four factor theory to build the model.

    https://github.com/roymondliao/NBA_Project