This book constitutes the refereed proceedings of the 9th Metadata and Semantics Research
Conference MTSR 2015 held in Manchester UK in September 2015.The 35 full papers and 3 short
papers presented together with 2 poster papers were carefully reviewed and selected from 76
submissions. The papers are organized in several sessions and tracks: general track on ontology
evolution engineering and frameworks semantic Web and metadata extraction modelling
interoperability and exploratory search data analysis reuse and visualization track on
digital libraries information retrieval linked and social data track on metadata and
semantics for open repositories research information systems and data infrastructure track on
metadata and semantics for agriculture food and environment track on metadata and semantics
for cultural collections and applications track on European and national projects.