🎓 Mathematics graduate from Aristotle University of Thessaloniki
🤖 Focused on AI systems, LLM applications, Retrieval-Augmented Generation (RAG) and Data Analytics
- Climate Energy Hybrid Assistant Enterprise-style AI assistant for climate and energy intelligence featuring structured analytics, RAG, hybrid retrieval, conversational memory, and local LLM orchestration using Qwen + Ollama. Built with FastAPI, React, ChromaDB, LangChain, and Docker.
👉 https://github.com/dimitrisl99/climate-energy-hybrid-assistant
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Hybrid RAG Chatbot
Retrieval-Augmented Generation system combining BM25 and dense embeddings with RRF fusion, cross-encoder reranking, and IR evaluation (Hit@K, MRR) 👉 https://github.com/dimitrisl99/hybrid-rag-chatbot -
LLM Fine-tuning Project
Fine-tuning pretrained models using LoRA
👉 https://github.com/dimitrisl99/lora-llm-statistics-finetuning -
AI Receipt Analyzer
OCR + ML pipeline for expense extraction and analysis
👉 https://github.com/dimitrisl99/ai_expense_receipt_analyzer -
Review Rating Prediction NLP pipeline using TF-IDF and linear models (SVM, Logistic Regression) for rating prediction and sentiment analysis 👉 https://github.com/dimitrisl99/review-rating-prediction
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Retail Business Analytics
Retail analytics project using SQL and Power BI. 👉 https://github.com/dimitrisl99/Retail_Business_Data_Analytics -
Student Performance Analysis
Student performance analytics using SQL (PostgreSQL) and Power BI 👉 https://github.com/dimitrisl99/Student-Performance-SQL-PowerBI
- Python, SQL
- Machine Learning, NLP, LLMs
- RAG, FAISS, Fine-tuning (LoRA), Text-to-SQL
- HuggingFace, LangChain
- PowerBI , Microsoft Office
- GitHub: https://github.com/dimitrisl99
- LinkedIn: www.linkedin.com/in/dimitris-loukakis-500645233
- e-mail: jimylouk@hotmail.com