Before revision: An large number of different caching mechanisms have been previously proposed \mbox{%DIFAUXCMD Aven87,Krunz04,Wikipedia-cache-replacement-policies , exploring different insertion and eviction policies and their performance individually and as part of caching networks.
After revision: Many different caching mechanisms have been previously proposed \mbox{%DIFAUXCMD Aven87,Krunz04,Wikipedia-cache-replacement-policies , exploring different insertion and eviction policies and their performance individually and as part of caching networks.