Standard Form
The algorithm requires the context-free grammar to be rendered into Chomsky normal form (CNF), because it tests for possibilities to split the current sequence in half. Any context-free grammar that does not generate the empty string can be represented in CNF using only production rules of the forms and .
Read more about this topic: CYK Algorithm
Famous quotes containing the words standard and/or form:
“I don’t have any problem with a reporter or a news person who says the President is uninformed on this issue or that issue. I don’t think any of us would challenge that. I do have a problem with the singular focus on this, as if that’s the only standard by which we ought to judge a president. What we learned in the last administration was how little having an encyclopedic grasp of all the facts has to do with governing.”
—David R. Gergen (b. 1942)
“A true poem is distinguished not so much by a felicitous expression, or any thought it suggests, as by the atmosphere which surrounds it. Most have beauty of outline merely, and are striking as the form and bearing of a stranger; but true verses come toward us indistinctly, as the very breath of all friendliness, and envelop us in their spirit and fragrance.”
—Henry David Thoreau (1817–1862)