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WalidAlsafadi/README.md

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Walid Alsafadi

Building reliable AI systems at the intersection of machine learning, natural language processing, and research.

I develop applied AI systems with an emphasis on grounded data, rigorous evaluation, and practical use. My work connects machine learning engineering, NLP, LLM-based systems, data workflows, and research methodology.

How I Work

Build

I transform data and ideas into complete AI workflows, from preparation and modeling to integration and deployment.

Evaluate

I assess systems through reproducible experiments, meaningful metrics, careful validation, and critical analysis.

Communicate

I translate complex technical work into clear documentation, research outputs, and accessible explanations.

Areas of Focus

  • Machine Learning and Deep Learning
  • Natural Language Processing
  • Large Language Models and Generative AI
  • Retrieval-Augmented Generation
  • AI Agents and Multi-Agent Systems
  • Data and Research Pipelines
  • Model Evaluation and Optimization

Technical Foundation

  • Languages: Python, SQL
  • AI and Data: PyTorch, TensorFlow, Scikit-learn, Hugging Face Transformers, XGBoost, pandas, NumPy
  • LLM Systems: LangChain, ChromaDB, CrewAI, Model Context Protocol
  • Engineering: FastAPI, REST APIs, PostgreSQL, SQLite, Docker, Git, GitHub

Pinned Loading

  1. PostWar-Building-Assessment-ES PostWar-Building-Assessment-ES Public

    Rule-based expert system with 40+ logic rules and fuzzy inputs to assess and prioritize post-war building reconstruction in Gaza. Includes a professional Streamlit UI and validation notebook.

    Jupyter Notebook 2

  2. ECommerce-Sales-Warehouse ECommerce-Sales-Warehouse Public

    ETL pipeline and data warehouse for e-commerce analytics using PostgreSQL and Python. Includes transformation scripts, schema modeling, and business insights via SQL.

    Jupyter Notebook 7 4

  3. Store-Sales-TS-Forecasting Store-Sales-TS-Forecasting Public

    Use machine learning to predict grocery sales

    Jupyter Notebook 3

  4. Gaza-Twitter-LLM-Sentiment Gaza-Twitter-LLM-Sentiment Public

    Analyzes Gaza-related tweets using LLaMA-3 via GroqCloud. Combines Selenium scraping with LLM-powered sentiment analysis to surface public emotion trends.

    Jupyter Notebook 4

  5. BBC-News-Sentiment-Analysis BBC-News-Sentiment-Analysis Public

    Sentiment analysis on BBC News headlines and descriptions using VADER. Classifies text as Positive, Negative, or Neutral based on compound scores.

    Jupyter Notebook 5

  6. Recipa-RAG-Assistant Recipa-RAG-Assistant Public

    Recipa AI is a full-stack Retrieval-Augmented Generation project that turns a cookbook PDF into an interactive cooking assistant. Built with LangChain and Chroma for retrieval, FastAPI for backend …

    Python 2 2