Samson

Samson

Experienced data scientist
United States of America

نبذة عني

Experienced data scientist with a strong foundation in analytics and modeling, holding a Master's degree from Valparaiso University and a Bachelor's in Computer Science and Engineering from Hyderabad Institute of Technol…

الخبرة

Programmer Analyst

Cognizant, Hyderabad, India
Mar 2021 - Jun 2022 · 1 سنة 3 أشهر

Collected 5TB of data with SSIS (SQL Server Integration Services) for high performance data integration and loading into MS SQL Server data warehouse for centralized storage and management.
Improved data quality by 78% using data preprocessing techniques in Pandas, Numpy, and Scikit-learn.
Optimized model training through feature normalization and scaling.
Designed an 8-layer deep neural network in TensorFlow, achieving 82% validation accuracy.
Conducted comparative performance analysis of CNN, RNN, and LSTM models against baselines.
Implemented dropout and L1/L2 regularization to mitigate overfitting.
Extracted 23 key features from raw data, focusing on credit and transaction metrics.
Enhanced models with non-traditional features like social media sentiments via NLP algorithms.
Improved credit default prediction accuracy to 85%, achieving a 0.89 AUC score.
Ensured GDPR and CCPA compliance for data privacy in feature engineering.
Utilized 5-fold stratified cross-validation for model testing.
Deployed models using Docker for scalable AWS EC2 infrastructure.
Enabled real-time data handling with Apache Kafka and microservices.
Developed Tableau dashboards for accessible model diagnostics.

المهارات

مايكروسوفت إكسل بايثون (لغة برمجة) الذكاء الصناعي علم البيانات خوارزميات تعلم الآلة التعلم العميق معالجة اللغة الطبيعية تابلو تحليل البيانات والتقارير Pandas NumPy TensorFlow MySQL MS SQL Server Machine Learning CNN RNN LSTM Naive Bayes K-Nearest Neighbors Decision Trees SVM Random Forest Apache Kafka Microservices AWS EC2 Docker GDPR CCPA Feature extraction Normalization SSIS Scikit-learn Data preprocessing Feature normalization Scaling Cross-validation Dropout L1 regularization L2 regularization Git Matplotlib Linear Regression Hyperparameter tuning Randomized grid search RMSE
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