Business insights using RAG–LLMs: a review and case study

Abstract

ABSTRACT As organizations increasingly rely on diverse data sources like invoices and surveys, efficient Information Extraction (IE) is crucial. Natural Language Processing (NLP) enhances IE through tasks such as Named Entity Recognition (NER), Relation Extraction (RE), Event Extraction (EE), Term Extraction (TE), and Topic Modeling (TM). However, implementing these methods requires significant expertise, which smaller organizations often lack. Large Language Models (LLMs), powered by Generative Artificial Intelligence (GenAI), can address this by performing multiple IE tasks without extensive development costs. However, LLMs may struggle with domain-specific accuracy. Integrating Retrieval-Augmented Generation (RAG) with LLMs improves precision by incorporating external data. Despite the potential, research on RAG-LLM applications in the business domain is limited. This article reviews Business IE systems, explores RAG-LLM applications across disciplines, and presents a case study demonstrating how RAG-LLMs can enhance business insights, offering scalable, cost-effective solutions.