| 摘要 |
Techniques for information access which enable speed versus quality tradeoffs. An information system according to the present techniques obtains a tradeoff of speed versus quality which is desired by a user posing a question. If the tradeoff specifies a time constraint, then the information system generates an answer to the question while meeting the time constraint and if the tradeoff specifies a quality constraint, then the information system generates the answer to meet the quality constraint. The present techniques enable the selection of methods for generating answer to a questions to adapt to the changing needs of users on a per question basis and per user basis.
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