Qihang Chen

Experience

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  Boston Youth Symphony Orchestras

  Jun 2022 - Aug 2022

  Project Manager Intern

  Conducted linear regression analysis using Python and scikit-learn to predict organizational expenditures, achieved an 88% accuracy rate, and reduced prediction errors by 3%Analyzed and identified the key factors influencing the expenditure based on trend and variance analysis, and proposed cost-saving suggestions and actionable solutions

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  Fujian Province Big Data Group Co., Ltd

  May 2023 - Aug 2023

  Data Science Intern

  Utilized the web scraping tool Octopus to gather 3,000 data columns from various bidding platforms that cover the financial, securities, and insurance industries over the past five yearsCleaned and organized the retrieved information and data with Python especially Pandas and NumPy including handling missing values and removing duplicates, and achieved 98% accuracy and consistency across all data setsCalculated the frequency of specific keywords in the dataset, performed text analysis to derive industry trend insights from textual data, and produced weekly analytical reports for supporting investment decision Show less

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  The Han Lab, Parkinson's Research, Boston University

  Sept 2023 - Dec 2023

  Research Assistant

  Contributed to a project aimed at studying the effects of electrical currents in different brain regions, providing insights into the relationship between electrical currents and brain function, and advancing research in the field of neuroscienceProcessed over 12 EEG data samples from mice using MATLAB and Python, implementing noise reduction, anomaly correction, and missing value imputation techniques to enhance data quality and accuracy, achieving an accuracy rate of 87%Performed frequency distribution analysis of electrical currents across various brain regions to explore their effects on brain function and activity, and created charts and graphs with Matplotlib and Seaborn to visualize impacts Show less

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  Office Of Returning Citizen, Boston Mayor's Office

  Jan 2024 - May 2024

  Data Analyst

  Participated in a project focused on the societal reintegration of ex-offenders, employing statistical and data-driven approaches to measure the impacts of rehabilitation programs within the communityUtilized Python and libraries including Pandas, NumPy, and scikit-learn to process and analyze over 50,000 records of ex-offenders like demographics, criminal history and employment records, and increased data accuracy from 68% to 98%Performed data analysis and visualization with Python tools like Matplotlib and Seaborn, as well as Tableau, and developed dashboards displaying key reintegration metrics such as employment and recidivism ratesConducted T-tests for validation, and delivered weekly data analysis reports highlighting a reduction in recidivism and a 6% increase in employment rates over two years Show less

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  Kaggle Data Science Competition

  Feb 2024 - Feb 2024

  Data Analyst

  Led a Python-based predictive analysis project on the Kaggle platform within 3 days, focusing on the survival outcomes of the Titanic disaster using the Titanic passenger dataset including attributes such as age, gender, and ticket classEngineered features and optimized the dataset using Python libraries including Pandas, NumPy, and Scikit-learn, and implemented a Random Forest machine learning model for classification and prediction tasksConducted model training and tuning on the dataset with cross-validation techniques to ensure robust generalization capabilities, achieving predictions on unseen dataEmployed the trained Random Forest model to predict passenger survival outcomes, achieving an accuracy rate of 82% Show less

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  Synergies Intelligent Systems, Inc.

  May 2024 - now

  Data Analyst