Uses of Interface
weka.filters.UnsupervisedFilter
Packages that use UnsupervisedFilter
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Uses of UnsupervisedFilter in weka.filters.unsupervised.attribute
Classes in weka.filters.unsupervised.attribute that implement UnsupervisedFilterModifier and TypeClassDescriptionclassAn abstract instance filter that assumes instances form time-series data and performs some merging of attribute values in the current instance with attribute attribute values of some previous (or future) instance.classAn instance filter that adds a new attribute to the dataset.classA filter that adds a new nominal attribute representing the cluster assigned to each instance by the specified clustering algorithm.
Either the clustering algorithm gets built with the first batch of data or one specifies are serialized clusterer model file to use instead.classAn instance filter that creates a new attribute by applying a mathematical expression to existing attributes.classAn instance filter that adds an ID attribute to the dataset.classAn instance filter that changes a percentage of a given attribute's values.classA filter that adds new attributes with user specified type and constant value.classAdds the labels from the given list to an attribute if they are missing.classCenters all numeric attributes in the given dataset to have zero mean (apart from the class attribute, if set).classChanges the date format used by a date attribute.classA filter that uses a density-based clusterer to generate cluster membership values; filtered instances are composed of these values plus the class attribute (if set in the input data).classAn instance filter that copies a range of attributes in the dataset.classAn instance filter that discretizes a range of numeric attributes in the dataset into nominal attributes.classThis instance filter takes a range of N numeric attributes and replaces them with N-1 numeric attributes, the values of which are the difference between consecutive attribute values from the original instance.classConverts String attributes into a set of attributes representing word occurrence (depending on the tokenizer) information from the text contained in the strings.classConverts the given set of data into a kernel matrix.classA filter that creates a new dataset with a Boolean attribute replacing a nominal attribute.classModify numeric attributes according to a given mathematical expression.classMerges all values of the specified nominal attributes that are insufficiently frequent.classMerges many values of a nominal attribute into one value.classMerges two values of a nominal attribute into one value.classConverts all nominal attributes into binary numeric attributes.classConverts a nominal attribute (i.e.classNormalizes all numeric values in the given dataset (apart from the class attribute, if set).classConverts all numeric attributes into binary attributes (apart from the class attribute, if set): if the value of the numeric attribute is exactly zero, the value of the new attribute will be zero.classTransforms numeric attributes using a given transformation method.classA simple instance filter that renames the relation, all attribute names and all nominal attribute values.classAn attribute filter that converts ordinal nominal attributes into numeric ones
Valid options are:classDiscretizes numeric attributes using equal frequency binning and forces the number of bins to be equal to the square root of the number of values of the numeric attribute.
For more information, see:
Ying Yang, Geoffrey I.classPerforms a principal components analysis and transformation of the data.
Dimensionality reduction is accomplished by choosing enough eigenvectors to account for some percentage of the variance in the original data -- default 0.95 (95%).
Based on code of the attribute selection scheme 'PrincipalComponents' by Mark Hall and Gabi Schmidberger.classReduces the dimensionality of the data by projecting it onto a lower dimensional subspace using a random matrix with columns of unit length.classAn filter that removes a range of attributes from the dataset.classRemoves attributes of a given type.classThis filter removes attributes that do not vary at all or that vary too much.classRenames the values of nominal attributes.classA filter that generates output with a new order of the attributes.classReplaces all missing values for nominal and numeric attributes in a dataset with the modes and means from the training data.classReplaces all missing values for nominal, string, numeric and date attributes in the dataset with user-supplied constant values.classA filter that can be used to introduce missing values in a dataset.classStandardizes all numeric attributes in the given dataset to have zero mean and unit variance (apart from the class attribute, if set).classConverts a range of string attributes (unspecified number of values) to nominal (set number of values).classConverts string attributes into a set of numeric attributes representing word occurrence information from the text contained in the strings.classSwaps two values of a nominal attribute.classAn instance filter that assumes instances form time-series data and replaces attribute values in the current instance with the difference between the current value and the equivalent attribute attribute value of some previous (or future) instance.classAn instance filter that assumes instances form time-series data and replaces attribute values in the current instance with the equivalent attribute values of some previous (or future) instance.classTransposes the data: instances become attributes and attributes become instances. -
Uses of UnsupervisedFilter in weka.filters.unsupervised.instance
Classes in weka.filters.unsupervised.instance that implement UnsupervisedFilterModifier and TypeClassDescriptionclassAn instance filter that converts all incoming instances into sparse format.classRandomly shuffles the order of instances passed through it.classThis filter takes a dataset and outputs a specified fold for cross validation.classDetermines which values (frequent or infrequent ones) of an (nominal) attribute are retained and filters the instances accordingly.classA filter that removes instances which are incorrectly classified.classA filter that removes a given percentage of a dataset.classA filter that removes a given range of instances of a dataset.classFilters instances according to the value of an attribute.classProduces a random subsample of a dataset using either sampling with replacement or without replacement.classProduces a random subsample of a dataset using the reservoir sampling Algorithm "R" by Vitter.classAn instance filter that converts all incoming sparse instances into non-sparse format.