This book constitutes the thoroughly refereed post-conference proceedings
of the 4th International Conference on Pattern Recognition, ICPRAM 2015,
held in Lisbon, Portugal, in January 2015.
The 20 revised full papers were carefully reviewed and selected
from 145 submissions and describe up-to-date applications of pattern
recognition techniques to real-world problems, interdisciplinary
research, experimental and/or theoretical studies yielding new insights
that advance pattern recognition methods.
