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Use the IRIS dataset that comes with Weka to compare the classification performance of the following algorithms. 1. NaiveBayesSimple 2. MultiLayerPerceptron J48 (
What are uncommitted modifications? The immediate-modification technique permits database modifications to be output to the database whereas the transaction is still in the act
A collection of a same kind of entities is known as an Entity Set or entity type. Example: For the COLLEGE database defines earlier objects of concern are Students, Faculty,
what is er digram given that example of hospital,bank and library er digram.
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
Defining Internal Classes and Operations When we enlarge algorithms, new classes can be added to the store intermediate results. A complex operation could be looked at, as a c
What are the two types of serializability? The two types of serializability is a) Conflict serializability b) View serializability
what is completeness constrent?
What is deadlock? Neither of the transaction can ever proceed with its normal implementation. This situation is known as deadlock.
Insulation between conceptual and physical structures It can be defined as: 1. The Database Administrator should be capable to vary the storage structures without affectin
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