Session Track: Data Intelligence
Session Time:
Session description
Passenger reviews are packed with emotional nuance, but most sentiment tools miss the big picture. In this lightning talk, Lijimol George presents GraphRAG, a hybrid framework powered by Neo4j that transforms unstructured airline reviews into structured, emotion-aware knowledge. The approach models service-specific aspects, such as seat comfort, cabin staff service, and in-flight entertainment, and incorporates emotional signals based on Ekman’s model of emotions, enabling fine-grained sentiment interpretation. By combining Sentence-BERT for semantic similarity, Cypher for graph querying, and RAG with LLMs for summarization, GraphRAG bridges the gap between raw narrative feedback and actionable, aspect-level insights. The talk illustrates how developers, data analysts, and graph enthusiasts can build similar pipelines by integrating emotional intelligence and aspect-level analysis into Neo4j, leveraging graph embeddings for hybrid search, and orchestrating structured retrieval with generative models. This domain-agnostic methodology can be extended to a wide range of sectors, including healthcare, public services, and e-commerce. By the end of the session, you’ll walk away with a clear understanding of how to set up a GraphRAG stack, query it effectively, and convert free-form text into emotionally intelligent, aspect-level insights—ready for real-world applications.
Senior Data Scientist, Tata Consutancy Services
Lijimol George is a Senior Data Scientist at Tata Consultancy Services, with over 18 years of experience in Artificial Intelligence, Machine Learning, Natural Language Processing, and Sentiment Analysis. Her expertise spans Predictive and Prescriptive Analytics, Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), and Graph Data Science. She has successfully led numerous high-impact projects, delivering AI-driven innovative solutions across IoT, digital engineering, retail, and aerospace domains. Lijimol is currently pursuing a Ph.D. in Data Science and actively shares her research insights at leading international conferences.