This book emanated from many discussions about collaborative research among the editors. The discussions have focussed on using signal processing methods for knowledge extraction and information fusion in a number
of applications from telecommunications to renewable energy and biomedical engineering. They have led to several successful collaborative efforts in organizing special sessions for international conferences and special issues of international journals. With the growing interest from researchers in different disciplines and encouragement from Springer editors Alex Greene and Katie Stanne, we were spurred to produce this book.
