Extractive phrase Large doc. Sentence

[Pages:25]question

context

Large doc. collection

answer

Extractive phrase Sentence Entire Passage

Question Answering over Curated and Open Web Sources R. Saha Roy and A. Anand SIGIR 2020 Tutorial

26 July 2020

48

used in ORQA [Lee et al., 2019]

? Natural Questions

? Questions with short answers ( ................
................

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