The soundex system to encode names was developed in 1918 by Robert C. Russell.

It gives a short string to show roughly how the first part of a name (or other word)  sounds when spoken. To find the soundex of a name, first write the letters of the name. Then go through the following steps:

1. delete the first letter of the name (but keep a record of it);

2. delete any A, E, I, O, U, Y, H, or W;

3. replace letters by numbers, as follows:

use 1 for B, F, P or V;

use 2 for C, G, J, K, Q, S, X or Z;

use 3 for D or T;

use 4 for L;

use 5 for M or N;

use 6 for R;

4. if two or more adjacent numbers are the same, omit all but one;

5. if there are more than three numbers, keep only the first three; if fewer than three,  add 0s to the end to make the code up to three numbers;

6. put the first letter of the original name on the front of the code.

Sample Problem 1.1 Find the soundex representations of the names SPRINGER and HAMMAN.

Solution

مواضيع ذات صلة

Remez Algorithm

Quadratic Phase Array

Fractional Fourier Transform

Circulant Matrix

Logistic Map--r=-2

Logistic Map--r=2

Logistic Map--r=4

Lotka-Volterra Equations

Population Growth

Survivorship Curve

Tent Map

Traveling Salesman Problem