Question Answering Methods
QA is very dependent on a good search corpus - for without documents containing the answer, there is little any QA system can do. It thus makes sense that larger collection sizes generally lend well to better QA performance, unless the question domain is orthogonal to the collection. The notion of data redundancy in massive collections, such as the web, means that nuggets of information are likely to be phrased in many different ways in differing contexts and documents, leading to two benefits:
- By having the right information appear in many forms, the burden on the QA system to perform complex NLP techniques to understand the text is lessened.
- Correct answers can be filtered from false positives by relying on the correct answer to appear more times in the documents than instances of incorrect ones.
Read more about this topic: Question Answering
Famous quotes containing the words question, answering and/or methods:
“The old question of whether there is design is idle. The real question is what is the world, whether or not it have a designer—and that can be revealed only by the study of all nature’s particulars.”
—William James (1842–1910)
“Goddesses never die. They slip in and out of the world’s cities, in and out of our dreams, century after century, answering to different names, dressed differently, perhaps even disguised, perhaps idle and unemployed, their official altars abandoned, their temples feared or simply forgotten.”
—Phyllis Chesler (b. 1941)
“The greatest part of our faults are more excusable than the methods that are commonly taken to conceal them.”
—François, Duc De La Rochefoucauld (1613–1680)