Knowledge-Enhanced Information Retrieval

This book constitutes the revised selected papers of the 2nd International Workshop on Knowledge-Enhanced Information Retrieval, KEIR 2025, held in Lucca, Italy, during April 10, 2025. The 4 full papers presented together with 4 invited papers in this volume were carefully reviewed and selected from 10 submissions. These papers ranging from query rephrasing and chunking techniques to LLM-generated context and agentic retrieval.