Prefix codes, trees, and automata
β Scribed by Jean-Louis Lassez
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 790 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0020-0255
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Probability estimates for letters in a finite alphabet are derived in order to apply the Huffman algorithm to determine an optimal binary prefix-condition code. The estimates maximize the entropy subject to constraints specifying second-level orderings of the letters' iikeiihoods. These are compared
For a tree automaton A over a ranked alphabet , we study the ground tree transformation (A) induced by A and the restriction Γ(A) of the congruence β \* A to terms over . We deΓΏne a congruence relation β A Γ A on A, called the determiner of A, and the quotient tree automaton A= . We show the followi