Khadafi Z.
Senior Data Scientist
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About
Khadafi Z. is a Data Scientist with more than 5 years of experience specializing in quantitative and qualitative data analysis, particularly in the fields of data science and informatics engineering. Based in West Sumbawa, he has managed end-to-end data workflows involving Python, CRISP-DM, and Label-Studio, with practical applications such as scraping with Apify, data preprocessing, sentiment analysis on social media comments, fake news detection, and exploratory data analysis (EDA) of inflation data for Mataram City and Bima City. Khadafi’s analytical projects span sentiment analysis using classification algorithms like Logistic Regression, Decision Tree, Gradient Boosting, and Random Forest, as well as Naive Bayes and KNN models. He holds a Bachelor’s degree in Informatics Engineering and a BNSP-certified Data Science qualification from Digital Skola.
Experience
Data Scientist
Al-Falah University · 2020 — PresentEngaged in data analysis utilizing Label-Studio, CRISP-DM, Python, and Notebook LM. Responsibilities included data preprocessing tasks such as removing duplicate data, cleaning, case folding, word normalization, tokenization, and stopword removal. Conducted exploratory data analysis (EDA) on datasets, filtered data, checked for missing values, and prepared plots. Applied various algorithms including Naive Bayes, KNN, Logistic Regression, Decision Tree Classification, Gradient Boosting Classifier, and Random Forest Classifier.
Skills & Expertise
Education
- Bachelor of Informatics EngineeringAl-Falah University · 1996 — 2002
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