We are pleased to announce that JProf. Mario Nadj’s research group has published an innovative article in the journal Datenbank-Spektrum entitled Metadata Extraction from User Queries for Self-Service Data Lake Exploration.
In this article, we developed a self-service system that automatically extracts metadata from a data lake and enables business analysts to explore the metadata through a user-friendly interface. In doing so, our system derives the metadata from user queries. Our results show that users particularly value the ability to reuse queries from other users and the query validation support, as data preparation is a complex and time-consuming endeavor.