Yi Gong

Maintenance of database

• Pyspark to add, update, join, delete and sort.
• App users analysis by Pyspark, including dau, mau, overlap, remain, flow and distribution.
• Domain name testing by web debugging proxy.
• Shell language in Linux to run Pyspark scripts.
• Accurate weekly update of database during my working period.

• Evaluation of OCR, ASR tools and dictionary pen based on accuracy metrics and human summarized problems.
• Trusted to deal with more than 10,000 data records with 50% improved efficiency by python data processing.
• Independently designed procedure for evaluation of ASR tools, identified a key problem in number recognition.