Enhancing Language Models with Retrieval-Augmented Generation for Accurate and Contextual Responses

Prof. Mauro Mazzei
CNR IAS, Italy
Abstract: The advent of Large Language Models (LLMs) has revolutionized natural language processing, enabling the generation of coherent and contextually relevant text. However, these models often suffer from inaccuracies and hallucinations, particularly when dealing with domains outside their training data. Retrieval-Augmented Generation (RAG) addresses these limitations by integrating the generative capabilities of LLMs with a retrieval mechanism that sources relevant information from reliable and up-to-date knowledge bases. The integration of RAG with LLMs represents a significant advancement in artificial intelligence, offering enhanced accuracy and contextual relevance in generated responses. This paper explores the architecture and implementation of RAG systems, highlighting their ability to enhance the accuracy and relevance of generated responses. Key components of RAG include the use of vector databases for efficient information retrieval and the application of semantic search techniques to ensure high precision in context retrieval. The paper also examines the practical advantages of RAG, such as reduced computational costs and the ability to provide current information without the need for frequent model retraining. Through a detailed case study of an open-source framework leveraging RAG technology, we discuss the setup and configuration on cloud infrastructure, the impact of parameter adjustments on response quality, and the practical applications of RAG in various domains.
Brief Biography of the Speaker: Mauro Mazzei is a senior scientific researcher at the Systems Analysis and Computer
Science Institute “Antonio Ruberti” - (IASI), Department of Engineering, ICT and
Technologies for Energy and Transport (Diitet) of the National Research Council (CNR), as
well as a professor in computer science at Uninettuno International University. Coordinator
of the research laboratory LabGeoInf of the National Research Council in Italy. He works in
systems theory with a strong orientation in data analysis and machine learning techniques.
He has published several research papers international journals and conferences, and he
took part in research projects of the European framework programs with international and
national institutions. His current research interests are technologies and solutions for data
engineering and analytics, and their advanced applications. My research also involves
machine learning methods, smart sensors and remote sensing data. Computer systems,
parallel/distributed systems, sensor networks, embedded systems, artificial intelligence,
intelligent systems, multi agent systems, machine learning, statistical data processing and
applications using signal processing, civil engineering, FEA/FEM analysis, Structural
analysis, geotechnics, geomatics and environment.
https://orcid.org/0000-0001-7350-2237