Ujjwal Singh

Ujjwal Singh

San Jose, California, United States
3K followers 500+ connections

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About

Data Scientist with 4+ years' experience and expertise in quantitative analysis, and…

Activity

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Experience

  • Uber Graphic

    Uber

    San Francisco Bay Area

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    San Francisco Bay Area

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    Sunnyvale

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    Tampa/St. Petersburg, Florida Area

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    Greater Atlanta Area

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    Bangalore

Education

  • University of South Florida Graphic

    University of South Florida

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    Graduated with a MS in Business Analytics with a concentration in Data Science and Analytics.

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    Activities and Societies: Head Event Coordinator, Cultural Club Indian Society for Technical Education (ISTE)

Licenses & Certifications

Projects

  • Influence of Kickstarter videos and Presidential debates

    - Present

    Analyze twitter poll reactions to videos based on the data extracted from audio segments, facial expressions, joined and aggregated datasets using SQL, Python, Stata based on timestamps & statistical measures.

    Tools: Python, Stata, SQL, LVA, FaceReader 6.1

  • New York State Salary Analysis

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    Created an interactive Tableau dashboard to showcase salary and employment distributions across NY state

  • Weather Impact Analysis on SF bike rental service

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    • Performed data cleaning and EDA to understand if weather conditions have an impact on bike sales.
    • Clustered the data based on weather conditions and validate each cluster’s data points on regressions models (linear, decision forest)

    Skills: K-means clustering, Regression, Python, Azure, Tableau

  • Sentiment Analysis on IMDB review dataset

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    • Cleaned user reviews using regular expressions, removed stop words and analyzed people sentiments toward movies.
    • Used distributed computing and Spark ML libraries and trained the model with logistic regression to predict the user sentiments.

    Skills: PySpark, NLTK, MLlib, RegEx

  • Sentiment Analysis of social media feed (twitter) using R.

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    • Analyzed sentiments towards the prime ministerial candidates during 2015 Indian general elections.
    • Developed a platform for importing historical and real-time tweets on R.
    • Cleaned tweets and calculated a sentiment score for the candidates and visualized results using ggplot2.

    Package Used: twitteR, syuzhet, streamR

  • Apple I&ST - Data Volume Management

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    • Collaborated with stakeholders and configured PBS nearline analytic indexing (NAI) in the system for efficient and faster data retrieval.
    • Customized session checks, write, delete programs and analyzed Database Reports and proposed suitable archiving solutions.
    • Database Analysis, Pivot tables, Customization of archiving objects.

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