Question: [ 5 pts ] For Rocchio's algorithm, explain the meaning of weight settings alpha / / beta / / gamma . [ 5 pts ]

[5pts] For Rocchio's algorithm, explain the meaning of weight settings alpha//beta//gamma.
[5pts] Why is positive feedback likely to be more useful than negative feedback to an IR system?
Why might onty using one nonrelevant document be more effective than using several?
[5pts] Describe the differences between vector space relevance feedback and probabilistic relevance feedback.
[ 5 pts ] For Rocchio's algorithm, explain the

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