The phrase "another class of problem" is correct and usable in written English.
It can be used when discussing different categories or types of issues or challenges in a particular context.
Example: "While we have addressed the initial concerns, we now face another class of problem that requires a different approach."
Alternatives: "a different category of issue" or "another type of challenge".
To do so, a mathematician would have to show that NP-complete problems are equivalent to another class of problem, P problems, in which complexity grows relatively slowly with the number of terms.
Another class of problem has to do with the choice of the "negative" control group of genes used in the algorithm for prediction, leading to inflated performance measures [48], [49], [50], [51].
Another class of problems, where Thompson sampling has been applied in the past, are Markov decision processes (MDPs).
In another class of problems, when even small random noise is injected into our neutron-proton data, another method, which we label HY, is superior.' In this ease, LM, NR, and KKH are sometimes completely ineffective.
In this section we discuss how to solve another class of problems, denoted Outside VMT problems, by modifying the algorithm presented in the previous section.
Another class of problems stemmed from operators which appeared to the engine to be double negatives such as "but not" or "but it never".
Another class of potential problem cases are vacuous terms.
Yet another class of examples that raise problems for the CM model involves putative explanations of the behavior of complex or "higher level" systems explanations that do not explicitly cite spatio-temporally continuous causal processes involving transfer of energy and momentum, even though we may think that such processes are at work at a more "underlying" level.
This establishes a connection with another class of solutions to measure data problem.
Still, it's a higher class of problem than leaves on the line at Clapham Junction.
