Definition: In this task, you will be presented with a context from an academic paper and a question based on the context. You have to classify the questions into "Extractive", "Abstractive", or "Yes-no" questions. Extractive questions can be answered by concatenating extracts taken from a context into a summary while answering abstractive questions involves paraphrasing the context using novel sentences. Yes-no question is a question whose expected answer is one of two choices, one that affirms the question and one that denies the question. Typically, the choices are either yes or no.
Input: $\mathit { exttt {+}PPMI}$ only falters on the RW and analogy tasks, and we hypothesize this is where $\mathit { exttt {-}PMI}$ is useful: in the absence of positive information, negative information can be used to improve rare word representations and word analogies.
Question: What are the disadvantages to clipping negative PMI?
Output:
Abstractive