Charles Reinertson

About Me

University of Washington MS. University of Michigan BS. Former Data Science intern @ HBO Max & Discovery+, T-Mobile, Out of the Blue

Location

Kirkland, WA
Education
    University of Michigan-Ann Arbor
    September 2021 - March 2023
    degree
    Master's
    major
    Data Science
    coursework
    EECS 281 Data Structures and Algorithms
    EECS 484 Database Management Systems
    EECS 445 Machine Learning
    STATS 413 Applied Regression Analysis
    EECS 492 Artificial Intelligence
    EECS 498 Machine Learning for Affective Computing
    EECS 442 Computer Vision
    EECS 485 Web Systems
    UNIVERSITY OF WASHINGTON
    September 2021 - March 2023
Work Experience
    Warner Bros. Discovery
    Applied Data Science Intern
    San Francisco, CA, United States, 94199
    June 2022 - August 2022
    company
    Warner Bros. Discovery
    title
    Applied Data Science Intern
    overview
    • Designed several recommender systems to improve upon the current You May Also Like (YMAL) rail for the combined HBO Max and Discovery+ streaming service. Deployed the model that led to a 2% increased NDCG in offline evaluation with cloud platforms Amazon SageMaker and Elastic Container Registry. • Solved the new show cold start problem by building a siamese neural network with triplet loss in PyTorch. Learned a mapping function from content vector space to embedding space where show similarity for the YMAL rail can be calculated directly. • Developed a heuristic-based YMAL rail recommender system as a baseline for ML-based model comparison. Utilized PySpark, Spark SQL, and Amazon S3. • Standardized the evaluation dataset and metrics for the YMAL rail to easily compare models. Found the model in production had an identical NDCG score as the heuristic-based YMAL rail recommender system.
    Out of the Blue AI
    DATA SCiENCE INTERN
    San Francisco, CA, United States, 94199
    May 2021 - August 2021
    T-Mobile
    Machine learning intern
    San Francisco, CA, United States, 94199
    November 2020 - May 2021
    T-Mobile
    Technology Project Management Intern
    June 2020 - August 2020
Fun Fact

I worked in early childhood education and consider myself an expert storyteller for children.

Skills
Technical skills
c++csshtmlnode.jspythonsqlvba
Volunteer
    Motley Crew
    January 2020 - April 2020
    Wolverine Support Network
    May 2020 - present
Leadership
    Wolverine Support Network
    Facilitator
    May 2020 - present
Hobbies
Hiking/Backpacking
Road Biking
Inept Dancing
Videos