I have sentence.
Algorithm is classified as a probabilistic algorithms, which is used for solving [name of problem] problems.
Can I say: "Algorithm is classified as a probabilistic algorithms. One is used for solving [name of problem] problem" ?
Strunk and White, The Elements of Style, 3rd Edition
"That
is the defining or restrictive pronoun, which
the non-defining pronoun." - Page 59
That
would refer to the specific algorithm mentioned before, which
would add information.
That to me seems to indicate that which
is the pronoun you're looking for rather than one
which is more nebulous.
It depends on whether you are referring to a single algorithm or a set of algorithms. On the basis of your above statement it appears to me that you are defining a specific algorithm. The sentence could be framed as:
A probabilistic algorithm is used for solving [name of problem] problems.
OR
An algorithm is probabilistic in nature, if it is used for solving [name of problem] problems.
Hope this helps.