Proceedings of the 18th International Workshop on Web and Databases

The papers in this volume were presented at the 18th International Workshop on the Web and Databases (WebDB 2015), held in Melbourne, Australia on May 31, 2015. The workshop was co-located with ACM SIGMOD, and attracted 31 submissions, of which 9 were selected for oral presentation and for publication in this volume. This corresponds to an acceptance rate of 29%, re-affirming WebDB's standing as a premier data and knowledge management workshop.