Research challenges of big data

Big data is characterised by new characteristics such as 3Vs (Volume, Velocity, Variety), and/or 5Vs (Volume, Velocity, Variety, Veracity, and Value). Due to the distinguishing characteristics of big data, it is commonly stored and processed using NoSQL (Not Only SQL) database systems. Big data has been utilised in various applications and services ranging from E-commerce through to social media to public sector and governmental organisations. The goal of this editorial note is to provide a concise summary of the big data characteristics, models, and technologies and to identify some of the crucial research challenges that are open for further research.