Question

Byte pair encoding is a compression algorithm that replaces the most common pairs of characters in a string with a character that isn't in the data, and creates a table of replacement mappings. Here's the output from a byte pair encoding: One ZY Two ZY Red ZY Blue ZY What was the original string?

A. One Two Red Blue
B. One Blue Two Red
C. Blue Red One Two
D. Red Blue One Two

Answer 1

The original string can be retrieved by reversing the byte pair encoding process, which in this case reveals 'One Blue Two Red Blue'.

Step-by-step explanation:

The original string can be retrieved by reversing the byte pair encoding process. In this case, the replacement character used is 'ZY'. By replacing 'ZY' with the original pairs, we find that 'ZY' represents 'Blue' in the original string.

By reversing the replacements, we get: 'One Blue Two Red Blue'.