document: A scalable and lightweight QoS monitoring technique combining passive and active approaches : on the mathematical formulation of CoMPACT monitor To make a scalable and lightweight QoS monitoring system , we -LRB- 2002 -RRB- have proposed a new QoS monitoring technique , called the change-of-measure based passive/active monitoring -LRB- CoMPACT Monitor -RRB- , which is based on the change-of-measure framework and is an active measurement transformed by using passively monitored data . This technique enables us to measure detailed QoS information for individual users , applications and organizations , in a scalable and lightweight manner . In this paper , we present the mathematical foundation of CoMPACT Monitor . In addition , we show its characteristics through simulations in terms of typical implementation issues for inferring the delay distributions . The results show that CoMPACT Monitor gives accurate QoS estimations with only a small amount of extra traffic for active measurement
doc_bio_tags: O O O O B I O O O O O O O O O O O O B I O O O O O O B I O O O O O O O O O O B I O O O O O O O O O B I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B I O O O O O O O O O O O O O O O O O O O B I O O O O O B I O O O O O O O O O O O O O O O
extractive_keyphrases: compact monitor delay distributions qos monitoring
abstractive_keyphrases: quality of service change-of-measure passive monitoring active monitoring internet network performance