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ACM Transactions on Modeling and Computer Simulation (TOMACS), Volume 23 Issue 4, October 2013

Efficient importance sampling schemes for a feed-forward network
Leila Setayeshgar, Hui Wang
Article No.: 21
DOI: 10.1145/2517450

The aim of this article is to construct efficient importance sampling schemes for a rare event, namely, the buffer overflow associated with a feed-forward network with discontinuous dynamics. This is done through a piecewise constant change of...

Rare-event simulation for stochastic recurrence equations with heavy-tailed innovations
Jose Blanchet, Henrik Hult, Kevin Leder
Article No.: 22
DOI: 10.1145/2517451

In this article, rare-event simulation for stochastic recurrence equations of the form

Xn+1=An+1Xn+Bn+1,...

On the validity of flow-level tcp network models for grid and cloud simulations
Pedro Velho, Lucas Mello Schnorr, Henri Casanova, Arnaud Legrand
Article No.: 23
DOI: 10.1145/2517448

Researchers in the area of grid/cloud computing perform many of their experiments using simulations that must capture network behavior. In this context, packet-level simulations, which are widely used to study network protocols, are too...

Parameterized activity cycle diagram and its application
Byoung K. Choi, Donghun Kang, Taesik Lee, Arwa A. Jamjoom, Maysoon F. Abulkhair
Article No.: 24
DOI: 10.1145/2501593

The classical activity cycle diagram (ACD), which is a bipartite directed graph, is easy to learn and use for describing the dynamic behavior of a discrete-event system. However, the complexity of the classical ACD model increases...

Synchronised range queries in distributed simulations of multiagent systems
Vinoth Suryanarayanan, Georgios Theodoropoulos
Article No.: 25
DOI: 10.1145/2517449

Range queries are an increasingly important associative form of data access encountered in different computational environments including peer-to-peer systems, wireless communications, database systems, distributed virtual environments, and, more...