FAST BDD TRUNCATION METHOD FOR EFFICIENT TOP EVENT PROBABILITY CALCULATION

Fast Bdd Truncation Method for Efficient Top Event Probability Calculation

A Binary Decision Diagram (BDD) [1-3] provides an efficient representation and manipulation of Boolean formulae, and it was shown that a BDD is effective in the diverse fields of computer science and reliability [4]. Bryant [3] popularized the use of a BDD by developing a set of algorithms for an efficient construction and manipulation of BDDs. The BDD algorithm was applied to a reliability ana...

Fast median calculation method

Discriminating Event Information for Calculation of Basic Probability Assignment

This study proposed a novel way to calculate Basic Probability Assignment(BPA), which is crucial in the data fusion. The study mapped sensing signal with a linear discriminant function analysis and assessed the sizes with time. This was beneficial to get a clue for context inference with using the Dempster-Shafer Theory and to determine BPA based on the size changing of mapping data in time int...

Generalization of Dodgson's "Virtual Center" Method; an Efficient Method for Determinant Calculation

Charles Dodgson (1866) introduced a method to calculate matrices determinant, in asimple way. The method was highly attractive, however, if the sub-matrix or the mainmatrix determination is divided by zero, it would not provide the correct answer. Thispaper explains the Dodgson method's structure and provides a solution for the problemof "dividing by zero" called "virtua...

A Fast Method for Calculation of Transformers Leakage Reactance Using Energy Technique

Energy technique procedure for computing the leakage reactance in transformers is presented. This method is very efficient compared with the use of flux element and image technique and is also remarkably accurate. Examples of calculated leakage inductances and the short circuit impedance are given for illustration. For validation, the results are compared with the results obtained using practic...