The workshop for "interoperable infrastructures for interdisciplinary big data science (IT4RIs)" focuses on practical aspects of the design, development and operation of research e-infrastructure and virtual research environments, as well as the interaction between ICT infrastructure and user communities. This year, the workshop specifically highlights two important topics in those contexts: nearly real-time data processing and time-critical applications in Clouds. The workshop aims to provide a forum for researchers and developers to exchange their experiences and ideas on building nearly real-time data processing solutions, and models for programming, executing and controlling time-critical applications on virtualized infrastructures (e.g., Clouds).