Multimedia Information Retrieval plays a vital role in the digital era.

The integration of semantics, linked data, artificial intelligence, and big data offers useful methodologies and tools to improve the entire information retrieval process.

In this context, the use of knowledge representation techniques as ontologies and knowledge graph (aka semantic artifacts) improves the knowledge of information retrieval systems together with advanced methodologies based on deep neural networks and more accurate semantic relatedness metrics to measure the relationships between concepts.