The LNCS journal Transactions on Computational Science reflects recent developments in the
field of Computational Science conceiving the field not as a mere ancillary science but rather
as an innovative approach supporting many other scientific disciplines. The journal focuses on
original high-quality research in the realm of computational science in parallel and
distributed environments encompassing the facilitating theoretical foundations and the
applications of large-scale computations and massive data processing. It addresses researchers
and practitioners in areas ranging from aerospace to biochemistry from electronics to
geosciences from mathematics to software architecture presenting verifiable computational
methods findings and solutions and enabling industrial users to apply techniques of
leading-edge large-scale high performance computational methods. This the 25th issue of the
Transactions on Computational Science journal consists of two parts. Part I which is guest
edited by Khalid Saeed Nabendu Chaki and Soharab Hossain Shaikh covers the areas of computer
vision image processing for biometric security information fusion and Kinect activity
recognition. The papers in Part II focus on optimization through novel methods for data fusion
clustering in WSN fault-tolerance probability weight assignment and risk analysis.