Physical Sciences and Mathematics Commons^™

The Evolution Of Ibm's Information Management System-- A Significant Data Base/Data Communications Software Product, Brent W. Anderson

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

In the early 1970's it was said that data base management systems (DBMS) would be to the 70's what COBOL was to the 60's. Clearly, recognition of the need to manage and effectively utilize data has resulted in significant efforts to develop computer hardware and software to meet this great challenge.

On The Sampling Distribution Of Entropy Function, Pan Fu-Charo

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Since the introduction of Shannon's Entropy Function in a non-probabilistic setting [l], there has been an expectancy that it will provide a useful measure for the fuzzy cluster validity problem. We hope to demonstrate here (empirically) by Monte Carlo simulation that the entropy Hc(U) of fuzzy c-partitions (U) defined below has expectaction

E(H_c(U)) = ∑^c_k=2 1/k

and variance

Var(H_c(U)) = 1/n(∑^c_k=2 1/k₂ - (c-1)/(c+1)(π²/6) - 1).

Furthermore, for sufficiently large n, that H is approximately normal.

In this report we propose a method which generates the required fuzzy matrix …

A Discussion Of An Empirical Bayes Multiple Comparison Technique, Donna Baranowski

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

This paper considers the application and comparison of Bayesian and nonBayesian multiple comparison techniques applied to sets of chemical analysis data. Suggestions are also made as to which methods should be used.