How does the performance of our method state-of-the-art?
How does the performance of our method compared to the existing state-of-the-art?
May I know which one is grammatical?
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Sign up to join this communityHow does the performance of our method state-of-the-art?
How does the performance of our method compared to the existing state-of-the-art?
May I know which one is grammatical?
Neither I'm afraid. You're lacking some grammar aside from your question.
Try something like this:
How does the performance of our method compare against existing state-of-the-art methods?
When you're using a verb in an object question (like yours is), you need to use an auxiliary verb, in this case "does". If you use it in present, "does + subject + compare", or if you wish to use it in the past, "did". "How did the performance of our method compare..?"