Ginni has Published 1580 Articles

How are decision trees used for classification?

Ginni

Ginni

Updated on 16-Feb-2022 11:44:47

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Decision tree induction is the learning of decision trees from class-labeled training tuples. A decision tree is a sequential diagram-like tree structure, where every internal node (non-leaf node) indicates a test on an attribute, each branch defines a result of the test, and each leaf node (or terminal node) influence ... Read More

How does classification work?

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Ginni

Updated on 16-Feb-2022 11:43:32

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Classification is a data-mining approaches that assigns elements to a set of data to aid in more efficient predictions and analysis. The classification is generally used when there are two target classes known as binary classification.When higher than two classes can be predicted, especially in pattern recognition problems, this is ... Read More

How can we use rule constraints to prune the search space?

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Ginni

Updated on 16-Feb-2022 11:40:48

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Rule constraints can be classified into the following five elements which are as follows −Antimonotonic − The first elements of constraints is antimonotonic. Consider the rule constraint “sum (I.price) ≤ 100”. Consider that it is using the Apriori framework, which at every iteration k analyze itemsets of size k. If ... Read More

How are metarules useful in data mining?

Ginni

Ginni

Updated on 16-Feb-2022 11:37:34

609 Views

Data mining is the process of finding useful new correlations, patterns, and trends by transferring through a high amount of data saved in repositories, using pattern recognition technologies including statistical and mathematical techniques. It is the analysis of factual datasets to discover unsuspected relationships and to summarize the records in ... Read More

What is Constraint-Based Association Mining?

Ginni

Ginni

Updated on 16-Feb-2022 11:36:27

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A data mining procedure can uncover thousands of rules from a given set of information, most of which end up being independent or tedious to the users. Users have a best sense of which “direction” of mining can lead to interesting patterns and the “form” of the patterns or rules ... Read More

What are the steps involved in Association Rule Clustering System?

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Ginni

Updated on 16-Feb-2022 11:34:44

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There are the following steps are involved in association rule clustering system which are as follows −Binning − Quantitative attributes can have a broad range of values representing their domain. It can think about how big a 2-D grid would be if it can plotted age and income as axes, ... Read More

How can we mine closed frequent itemsets?

Ginni

Ginni

Updated on 16-Feb-2022 11:30:57

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In naïve approach, it can mine the complete set of frequent itemsets and then remove each frequent itemset that is a proper subset of, and give the similar support as, a current frequent itemset.This method can derive 2100−1 frequent itemsets to obtain a length-100 frequent itemset, all before it can ... Read More

What is Apriori Algorithm?

Ginni

Ginni

Updated on 16-Feb-2022 11:26:46

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Apriori is a seminal algorithm developed by R. Agrawal and R. Srikant in 1994 formining frequent itemsets for Boolean association rules. The algorithm depends on the case that the algorithm need previous knowledge of frequent itemset properties.Apriori use an iterative method called a level-wise search, where k-itemsets can explore (k+1)-itemsets. ... Read More

What are the criteria of frequent pattern mining?

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Ginni

Updated on 16-Feb-2022 11:24:16

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There are several criteria of frequent pattern mining which are as follows −Based on the completeness of patterns to be mined − It can mine the whole collection of frequent itemsets, the closed frequent itemsets, and the maximal frequent itemsets, provided a minimum support threshold.It can also extract constrained frequent ... Read More

How is class comparison performed?

Ginni

Ginni

Updated on 16-Feb-2022 11:22:26

798 Views

Class discrimination or comparison mines characterization that categorize a target class from its contrasting classes. The target and contrasting classes should be comparable providing they share same dimensions and attributes. For instance, the three classes, person, address, and elements, are not comparable. But the sales in the last three years ... Read More

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