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Walid GhenaietWG

Walid Ghenaiet

Data scientist / Machine Learning

€150/day
Paris, FR
0-2 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Walid

AI & Data Science Engineer

I design custom **AI solutions, intelligent agents, chatbots**, and **process automations**.

I am involved in theentire project cycle**, from data collection and preparation to deployment, to create **performant, reliable, and scalablesystems.

Key Skills:
  • Development ofAI agents**, **conversational assistants**, and **custom chatbots
*LLM Integration
  • Business processautomationandintelligent text generation
*Machine Learning, Deep Learning, NLP, Computer Vision

*Data annotationandWeb scraping(collection and structuring of relevant data)

*Python, SQL, Pandas, scikit-learn, Keras/PyTorch, Hugging Face

Goal**: to help companies leverage the power of **language modelsanddatatoincrease efficiency, automate, and innovate.
  • French

    Native or bilingual

  • English

    Native or bilingual

Can work on-site
Paris (up to 50km)

Experience

  • Scortex
    Data Scientist
    LOGISTICS AND SUPPLY CHAIN
    March 2025 - September 2025 (6 months)
    Paris, France
    I tackled the challenge of data scarcity in automated visual quality control by designing generative pipelines capable of producing realistic and diverse synthetic defects. This data allowed for the training of supervised models that achieved performance comparable to, or even exceeding, state-of-the-art unsupervised methods.

    Key Achievements:
    • Developed a few-shot anomaly generation pipeline, based on pre-trained diffusion models fine-tuned with LoRA and text embedding tuning, to create realistic defects from very few real examples.
    • Designed and trained supervised pixel-to-pixel classification and segmentation models, achieving excellent results on industrial benchmarks.
    • Utilized Grad-CAM for model behavior analysis and interpretation, enhancing the explainability and reliability of predictions.
    • Created an advanced inpainting pipeline for defect generation, integrating techniques like ORB keypoint matching and Otsu thresholding to improve semantic consistency and anomaly diversity.
    • Conducted a comparative evaluation with unsupervised approaches, demonstrating the superiority of generative methods for anomaly segmentation.
    • Authored a research paper detailing the explored strategies, their limitations on complex anomalies, and prospects for industrial application.
    Pytorch Python Microsoft Azure MLflow Computer Vision
  • Self
    AI Engineer
    TECH
    August 2025 - September 2025 (1 month)
    Paris, France
    AI Agent for Automated Financial Report Generation

    Designed an intelligent agent capable of transforming simple questions into professional financial reports, significantly reducing research and writing time. The system utilizes an LLM (Gemini) to enrich queries, extracts relevant information from online sources (DuckDuckGo API) and a vector database (Pinecone), and then synthesizes the results into structured content.

    Before export, the agent verifies the report's completeness: if the answer is deemed insufficient, it autonomously continues collecting and reformulating data to ensure accuracy and exhaustiveness.

    This project illustrates the potential of autonomous AI agents to automate research, optimize financial analysis, and produce reliable, ready-to-use reports.
    Gemini LLM Agentic AI Automation RAG
  • Sorbonne IV
    Data Scientist
    BIOTECH
    October 2024 - December 2024 (2 months)
    Paris, France
    Real-time EMG Gesture Recognition and Fatigue Analysis System

    Designed and implemented a comprehensive machine learning system capable of translating raw electromyographic (EMG) signals into real-time commands for a Unity application. The project covers the entire pipeline, from signal acquisition and processing to model deployment and inter-process communication.

    Key Achievements:
    • Developed a signal processing pipeline to filter and extract 12 temporal and frequency features (RMS, MAV, ZC, SSC, WL, dominant frequency) from EMG signals using NumPy and SciPy.
    • Designed a two-stage learning model with Scikit-learn:
    * A Gradient Boosting Classifier for multi-class gesture recognition (rest, fist, open hand), achieving over 92% accuracy.
    * K-Means clustering for unsupervised fatigue level detection (in shape, mild fatigue, fatigue).
    • Implemented a modular Python architecture with multi-threaded acquisition, model serialization, and a custom inference class for efficient execution.
    • Established real-time communication via UDP sockets between Python and Unity, ensuring end-to-end latency below 100 ms.
    Python Scikit-learn Machine Learning Algorithms Data Science Pandas

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Education

  • Master in Artificial Intelligence
    Sorbonne University
    2025

Skill set

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