Dasom Lee Email & Phone Number

San Francisco, Ca, Us

Seattle, Wa, Us

Alexa AI Web Information TeamCustomer Engagement Technologies Team Grocery Supply Demand Team- Improved Alexa’s response accuracy for newsworthy queries by fine-tuning contextual passage re-ranking models with time sensitive features.- Provide insights of A/B testing results in the decision-making process for a new product's international roll out.- Built predictive models with gradient boosting algorithms to design key metrics to measure customer satisfaction.- Automate scalable ETL processes for cleaning, aggregating, and loading data into Redshift to support analytic querying.

Irvine, Ca, Us

- Led MAU growth analysis for Latin American countries using KNN to measure incremental gains of new players - Built an end-to-end pipeline for media campaign revenue prediction model using LightGBM with Tweedie-based loss function and deployed to the production environment with Docker to aid Strategists optimize the budget allocation planning

Irvine, Ca, Us

- Automated A/B testing process that calculated traffic allocation and ran statistical analysis on performance of media campaigns to aid data-driven decision making - Conducted data filtering and outlier detection on audience segmentation using MySQL, found 50K seed audience of active players and frequent virtual buyers, and targeted them in a new media campaign

New York, Ny, Us

- Reduced error rate by 20% by building the first workflow automation model for decision-making patterns in R- Used MySQL to retrieve data and performed descriptive statistics, regression modeling, and survey analysis in R

Mountain View, Ca, Us

- Generated revenue increase by assisting Industry Managers, Account Managers, and Engineers to create competitive brand positioning for major advertisers using internal search tool for search engine - Investigated the effect of shifting ad spending from TV to YouTube on audience reach via meta-analysis with Analysts and Engineers- Examined consumer web behavior conversion paths with Engineers using Google Analytics and increased sales on display ads by identifying opportunities to improve online lead generation

Master'S Degree, Data Science

Bachelor Of Science (Bs), Social Sciences

Certificate, Mathematics And Statistics