🚀 First Milestone Achieved: Building a Smarter AI Recruiter After weeks of experimentation and fine-tuning, I’m excited to share the first completed part of my AI Recruitment Assistant project an intelligent system that matches candidates to job descriptions using semantic understanding and graph-based reasoning 🧠 🧩 What We’ve Built So Far ✅ Data Engineering & Preprocessing Cleaned and unified two major resume datasets (DS1 & DS2). Standardized 24 job categories (ENGINEERING, IT, FINANCE, etc.). Extracted technical skills while preserving key tokens (C++, .NET, TensorFlow, etc.). ✅ Fine-Tuned Transformer Model Model: sentence-transformers/all-MiniLM-L6-v2 Fine-tuned using SoftmaxLoss to classify resumes → roles. Achieved strong metrics: 🧠 Weighted F1-score: 0.92 🎯 Test Accuracy: 0.81 ✅ Semantic Search (DSO2) Built a FAISS vector database for similarity retrieval. Recall@5: 0.86 | MRR: 0.80 proving high semantic match quality. ✅ Skill Graph (DSO1) Created a Neo4j knowledge graph connecting candidates, skills, and roles. Enables explainable reasoning: “Candidate 691 is a strong fit for the Machine Learning Engineer role because of Python, TensorFlow, and teamwork.” 🧠 How It Works 1️⃣ Input a job description. 2️⃣ The fine-tuned model predicts the most relevant role. 3️⃣ FAISS retrieves semantically similar resumes. 4️⃣ Neo4j identifies overlapping skills and relationships. 5️⃣ An LLM (LLaMA-3.1-8B via Ollama) explains why each candidate fits the role. All orchestrated using LangGraph + LangChain, forming a hybrid AI pipeline that combines semantic retrieval 🧬 + symbolic reasoning 🕸️ + natural language explanation 💬. 💬 Excited to push this forward and make AI recruitment more transparent and intelligent. #AI #LangChain #Neo4j #FAISS #LLM #MachineLearning #RecruitmentTech #MLOps #RAG #NLP #Innovation

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