Modeling and Computer Simulation (TOMACS)


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ACM Transactions on Modeling and Computer Simulation (TOMACS), Volume 23 Issue 2, May 2013

Better estimation of small sobol' sensitivity indices
Art B. Owen
Article No.: 11
DOI: 10.1145/2457459.2457460

A new method for estimating Sobol' indices is proposed. The new method makes use of 3 independent input vectors rather than the usual 2. It attains much greater accuracy on problems where the target Sobol' index is small, even outperforming some...

Reversible simulations of elastic collisions
Kalyan S. Perumalla, Vladimir A. Protopopescu
Article No.: 12
DOI: 10.1145/2457459.2457461

Consider a system of N identical hard spherical particles moving in a d-dimensional box and undergoing elastic, possibly multiparticle, collisions. We develop a new algorithm that recovers the precollision state from the...

Modeling BitTorrent-like systems with many classes of users
Wei-Cherng Liao, Fragkiskos Papadopoulos, Konstantinos Psounis, Constantinos Psomas
Article No.: 13
DOI: 10.1145/2457459.2457462

BitTorrent is one of the most successful peer-to-peer systems. Researchers have studied a number of aspects of the system, including its scalability, performance, efficiency and fairness. However, the complexity of the system has forced most prior...

Characterizing per-application network traffic using entropy
Vladislav Petkov, Ram Rajagopal, Katia Obraczka
Article No.: 14
DOI: 10.1145/2457459.2457463

The Internet has been evolving into a more heterogeneous internetwork with diverse new applications imposing more stringent bandwidth and QoS requirements. Already new applications such as YouTube, Hulu, and Netflix are consuming a large fraction...