First time Assignment 1.4 (2)

2), extract a few paragraphs from a popular magazine, and delete any text that does not affect the understanding, to achieve compression. For example, after deleting "is", "the" "and" "and" to "in the" This was the dog that belongs to my friend ", the same meaning can still be passed. Measure the redundancy in the text with the ratio of the number of words deleted to the original total number of words. Repeating this experiment with text from a technical journal, can we quantitatively discuss the redundancy of the text from different sources?

A: Redundancy It characterizes the source information rate is more than the degree, is to describe the source of the objective statistical characteristics of a physical quantity. Can also be said to be from the excess of a volume, it does not affect the integrity of the data, it is precisely because of the existence of a surplus, to its source compression, compression will not affect the delivery of information. Source = information + redundancy.

First time Assignment 1.4 (2)