Xiaoyang Liu Email & Phone Number

San Francisco, California, US

• Built and implemented machine translation Spanish-English system, utilized seq-to-seq model and attention techniques to improve BLUE score, researched and implemented pointer network to generate summarization based on.
• Built and deployed image facial recognition pipeline on Docker, implemented Fast-RCNN and MTCNN for efficient object detection by utilizing RPN, researched and built FaceNet on facial detection improving triplet loss.
• Devised methodology for calculating the website traffic that is attributable to credit card advertising, implemented contextual bandit UCB algorithm to optimize ads performance
• Developed query understanding/rewriting to predict user intent, increased user click through rate by utilizing WordtoVec(CBOW) and improved ads ranking by matching user preference to financial product.
• Defined metrics and using geo experiments to estimating causal effects of COVID-19 product features changes on user experience, analyzed power and modeled network effect to decide unit of randomization, designed.
• Built data pipelines that pre-aggregate users across experiments/treatment groups & pre-aggregate metric data

• Developed an interactive web page (HTML/javascript) for users to update preference and view recommended games for users.
• Developed a web service using (Java servlet, REST API) to fetch game data from Steam API, cleaned and purified essential features.
• Utilized MySQL/MongoDB to store user preference and game information.
• Designed and developed a filtering and sorting algorithm to match similar games based on game styles.
• Improved the precision by ordering games based on review score and user recommendation.
• Deployed the application to Amazon EC2 for better scaling performance.

Master Of Science (M.S.), Statistics

Dual Degree, Bachelor Of Science, Economics

Bachelor Of Science (B.S.), Geographic Information System