Question: Information Retrieval is the subject here. Not based on SQL. Q. 1. A user submits a query, q, to an information retrieval system which returns

Information Retrieval is the subject here. Not based on SQL. Q.

Information Retrieval is the subject here. Not based on SQL.

Q. 1. A user submits a query, q, to an information retrieval system which returns a ranked list to the user. Given the top k ranked documents. i) Explain how, in terms of IR evaluation, one could measure the quality of this answer set. Discuss any limitations of this approach. (6 marks) ii) Explain how the query q could be modified using evidence from the returned set to improve performance. Outlines any potential limitations of this approach. (10 marks) iii) Given the original query q and the modified query q', discuss, in your words, how you might predict which query is likely to perform better. (9 marks)

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