Specifically I've seen it used in the context of text filtering. As if "predicate" == "filter criteria".
Is this accurate?
+6
A:
The word comes from logic.
A predicate is an "is" boolean question about the inputs.
"IsNull" is a predicate question.
Also, wikipedia link about Predicates in Math.
Paul Nathan
2010-07-12 18:11:07
+6
A:
What does ‘predicate’ mean in the context of computer science?
It is a term most commonly used in the field of Mathematical Logic.
From wikipedia
In mathematics, a predicate is either a relation or the boolean-valued function that amounts to the characteristic function or the indicator function of such a relation.
A function P: X→ {true, false} is called a predicate on X. When P is a predicate on X, we sometimes say P is a property of X.
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"predicate" == "filter criteria"
To some extent.
Prasoon Saurav
2010-07-12 18:11:31
I would change "to some extent" to "exactly the same", since one can either filter an element or not, which implies a boolean function, i.e. a predicate.
Dimitris Andreou
2010-07-24 17:25:51