New PDF release: Principles of Data Mining (2nd Edition) (Undergraduate

By Max Bramer

ISBN-10: 1447148843

ISBN-13: 9781447148845

Facts Mining, the automated extraction of implicit and possibly precious info from info, is more and more utilized in advertisement, medical and different software areas.

Principles of information Mining explains and explores the vital concepts of knowledge Mining: for class, organization rule mining and clustering. every one subject is obviously defined and illustrated by means of specific labored examples, with a spotlight on algorithms instead of mathematical formalism. it's written for readers with out a powerful history in arithmetic or records, and any formulae used are defined in detail.

This moment variation has been multiplied to incorporate extra chapters on utilizing common development bushes for organization Rule Mining, evaluating classifiers, ensemble class and working with very huge volumes of data.

Principles of knowledge Mining goals to assist common readers boost the mandatory figuring out of what's contained in the 'black box' to allow them to use advertisement information mining programs discriminatingly, in addition to allowing complex readers or educational researchers to appreciate or give a contribution to destiny technical advances within the field.

Suitable as a textbook to aid classes at undergraduate or postgraduate degrees in quite a lot of topics together with desktop technology, enterprise stories, advertising, synthetic Intelligence, Bioinformatics and Forensic technological know-how.

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Additional resources for Principles of Data Mining (2nd Edition) (Undergraduate Topics in Computer Science)

Sample text

Unfortunately, one usually does not know the shape of the clusters hidden in the data a priori. Therefore, in practice a good strategy is to try several different clustering algorithms, with different biases, and pick up the best result - or some combination of the best results. It is also important to compare the results achieved by a clustering algorithm on a given data set with the results achieved by that algorithm on a randomly-generated data set having the same number of data instances and the same attribute domains as the original data set.

1 Dependence Modeling vs Association-Rule Discovery In its original, standard form, the task of association-rule discovery can be defined as follows [Agrawal et al. 1993]. Consider a data set where a data instance consists of a set of binary attributes called items. Each data instance represents a customer transaction, and each item of that transaction can take on the value yes or no, indicating whether or not the corresponding customer bought that item in that transaction. , X n Y = 0. Each association rule is usually evaluated by a support and a confidence measure.

The three above-mentioned rule-quality criteria are discussed in turn in the next three subsections. 3 discuss the more difficult problems of measuring rule comprehensibility and rule interestingness, respectively. 1 Measuring Predictive Accuracy In the context of prediction rules, it is very common practice to evaluate the quality of discovered rules with respect to their predictive accuracy. It is important to bear in mind, however, that this predictive accuracy must be measured on a separate test set, containing data instances that were not seen during training.

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Principles of Data Mining (2nd Edition) (Undergraduate Topics in Computer Science) by Max Bramer


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