This book constitutes the refereed proceedings of the 12th International Conference entitled
Beyond Databases Architectures and Structures BDAS 2016 held in Ustron Poland in May June
2016. It consists of 57 carefully reviewed papers selected from 152 submissions. The papers are
organized in topical sections namely artificial intelligence data mining and knowledge
discovery architectures structures and algorithms for efficient data processing data
warehousing and OLAP natural language processing ontologies and semantic Web bioinformatics
and biomedical data analysis data processing tools novel applications of database systems.