What is a composite source model? What are prefix codes? - Compression Standard

What is a composite source model?

- It is not simple to use a single model to describe the source in many applications.

- In these scenarios, a composite source model is used.

- Composite Source Model uses only one source.

- Only single source is activated at a given point of time.

What are prefix codes?

- A prefix code is a code which does not require code word as a prefix to another code word.

- Huffman code is an example for Prefix Code.
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