A search engine supports error correction in the following way: If an error is suspected in a query term, the system provides a link labeled “Did you mean X?”, where X is the corrected term, in addition to its normal results. The link leads to a list of retrieved documents, corresponding to a variant of the original query, with X replacing the misspelled term. a) Explain why it is non-trivial to implement this feature efficiently. b) Discuss methods for implementing this feature in a realistic setting.

A search engine supports error correction in the following way: If an error is suspected in a query term, the system provides a link labeled “Did you mean X?”, where X is the corrected term, in addition to its normal results. The link leads to a list of retrieved documents, corresponding to a variant of the original query, with X replacing the misspelled term. a) Explain why it is non-trivial to implement this feature efficiently. b) Discuss methods for implementing this feature in a realistic setting.

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter3: Data Representation

Section: Chapter Questions

Problem 3RP

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