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Data MiningIf a word occurs 4 times in a document containing 100 words, its term frequency is (i) 0.004 (ii) 0.4 (iii) 0.04 (iv) 420262mData MiningThe classification and prediction methods are affected by (i) accuracy (ii) speed (iii) robustness (iv) All of the above20222mData MiningIn a database of 200 transactions, an itemset occurs in 50 transactions. Its support is (i) 10% (ii) 25% (iii) 20% (iv) 50%20262mMACHINE LEARNINGWhich of the following is true about averaging ensemble? (i) It can only be used in classification problem (ii) It can only be used in regression problem (ii) It can be used in both classification as well as regression (iv) None of the above20222m
PreviousSupport of an itemset represents (i) Probability that the consequent occurs given the antecedent (ii) Number of attributes in the database (iii) Frequency with which the itemset occurs in the database (iv) Number of rules generatedNextWhich technique is particularly useful for reducing overfitting and obtaining a more reliable estimate of classifier performance? (i) Cross-validation (ii) Increasing noise (iii) Data duplication (iv) Removing the test set
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