This paper discusses implementation of a two-stage procedure to determine the simulation run length for selecting the best of k designs. We purpose an Enhanced Two-Stage Selection (ETSS) procedure. The number of additional replications at the second stage for each design is determined by both the variances of the sample means and the differences of the sample means of alternative designs. We sh...

k-means++ is a seeding technique for the k-means method with an expected approximation ratio of O(log k), where k denotes the number of clusters. Examples are known on which the expected approximation ratio of k-means++ is Ω(log k), showing that the upper bound is asymptotically tight. However, it remained open whether k-means++ yields an O(1)-approximation with probability 1/poly(k) or even wi...

A new approach for the synthesis of both sum and difference antenna pattern is proposed. The approach allows to obtain an optimal sum pattern and a sub-optimal difference pattern through the search of a minimal cost path inside an incomplete binary tree.

Mean value estimation of processes exhibiting Long Range Dependence (LRD) requires a different approach than the techniques applied to those exhibiting Short Range Dependence (SRD), except for the independent replication method. We describe a nonoverlapping batch means method able to deal with LRD processes, the LRD Batch Means method. This method exploits the behavior of Asymptotically Second-...

Performance of Skart: A Skewnessand Autoregression-Adjusted Batch-Means Procedure for Simulation Analysis Ali Tafazzoli, James R. Wilson Edward P. Fitts Department of Industrial and Systems Engineering, North Carolina State University, Campus Box 7906, Raleigh, North Carolina 27695-7906, USA, {[email protected], [email protected]} Emily K. Lada SAS Institute, 100 SAS Campus Drive, Cary, North Car...

The use of laptop computers to produce real-time music and multimedia performances has increased significantly in recent years. In this paper, I propose a new method of generating club-style loop music in real time by means of interactive evolutionary computation (IEC). The method includes two features. The first is the concept of “breeding” without any consciousness of generation. The second i...

In the paper a wavelet-based signals processing technique for the experimental detection of the gear rattle produced by the teeth impacts in lightly loaded gears is proposed. The Discrete Wavelet Transform is used to decompose the signal of the angular relative motion of an helical gear pair, and the wavelet decomposition details are adopted to analyze the dynamic behavior under rattle conditio...

The use of Interactive Evolutionary Computation(IEC) is suitable to the development of art-creation aid system for beginners. This is because of important features of IEC, like the ability of optimizing with ambiguous evaluation measures, and not requiring special knowledge about artcreation. With the popularity of Consumer Generated Media, many beginners in term of art-creation are interested ...

Batch means are sample means of subsets of consecutive subsamples from a simulation output sequence. Independent and normally distributed batch means are not only the requirement for constructing a confidence interval for the mean of the steady-state distribution of a stochastic process, but are also the prerequisite for other simulation procedures such as ranking and selection (R&S). We propos...