Detailed Instructions: In this task, you will be presented with a context from an academic paper and you have to write an answerable question based on the context. Your questions can be extractive, abstractive, or yes-no questions.
Q: Past research took a reductionist approach, separately considering these two problems of "what" and "how" via content selection and question construction. In contrast, neural models motivate an end-to-end architectures. Deep learned frameworks contrast with the reductionist approach, admitting approaches that jointly optimize for both the "what" and "how" in an unified framework.
A:
What learning paradigms do they cover in this survey?