Uses of Interface
weka.core.WeightedInstancesHandler
Package
Description
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Uses of WeightedInstancesHandler in weka.classifiers.bayes
Modifier and TypeClassDescriptionclass
Bayes Network learning using various search algorithms and quality measures.
Base class for a Bayes Network classifier.class
Class for a Naive Bayes classifier using estimator classes.class
Class for building and using a multinomial Naive Bayes classifier.class
Multinomial naive bayes for text data.class
Class for building and using an updateable multinomial Naive Bayes classifier.class
Class for a Naive Bayes classifier using estimator classes. -
Uses of WeightedInstancesHandler in weka.classifiers.bayes.net
Modifier and TypeClassDescriptionclass
Bayes Network learning using various search algorithms and quality measures.
Base class for a Bayes Network classifier.class
Builds a description of a Bayes Net classifier stored in XML BIF 0.3 format.
For more details on XML BIF see:
Fabio Cozman, Marek Druzdzel, Daniel Garcia (1998).class
Bayes Network learning using various search algorithms and quality measures.
Base class for a Bayes Network classifier. -
Uses of WeightedInstancesHandler in weka.classifiers.functions
Modifier and TypeClassDescriptionclass
* Implements Gaussian processes for regression without hyperparameter-tuning.class
Class for using linear regression for prediction.class
Class for building and using a multinomial logistic regression model with a ridge estimator.
There are some modifications, however, compared to the paper of leCessie and van Houwelingen(1992):
If there are k classes for n instances with m attributes, the parameter matrix B to be calculated will be an m*(k-1) matrix.
The probability for class j with the exception of the last class is
Pj(Xi) = exp(XiBj)/((sum[j=1..(k-1)]exp(Xi*Bj))+1)
The last class has probability
1-(sum[j=1..(k-1)]Pj(Xi))
= 1/((sum[j=1..(k-1)]exp(Xi*Bj))+1)
The (negative) multinomial log-likelihood is thus:
L = -sum[i=1..n]{
sum[j=1..(k-1)](Yij * ln(Pj(Xi)))
+(1 - (sum[j=1..(k-1)]Yij))
* ln(1 - sum[j=1..(k-1)]Pj(Xi))
} + ridge * (B^2)
In order to find the matrix B for which L is minimised, a Quasi-Newton Method is used to search for the optimized values of the m*(k-1) variables.class
A classifier that uses backpropagation to learn a multi-layer perceptron to classify instances.class
Implements stochastic gradient descent for learning a linear binary class SVM or binary class logistic regression on text data.class
Learns a simple linear regression model.class
Classifier for building linear logistic regression models.class
Implements John Platt's sequential minimal optimization algorithm for training a support vector classifier.
This implementation globally replaces all missing values and transforms nominal attributes into binary ones.class
SMOreg implements the support vector machine for regression. -
Uses of WeightedInstancesHandler in weka.classifiers.lazy
-
Uses of WeightedInstancesHandler in weka.classifiers.meta
Modifier and TypeClassDescriptionclass
Class for boosting a nominal class classifier using the Adaboost M1 method.class
Meta classifier that enhances the performance of a regression base classifier.class
Dimensionality of training and test data is reduced by attribute selection before being passed on to a classifier.class
Class for bagging a classifier to reduce variance.class
Class for doing classification using regression methods.class
A metaclassifier that makes its base classifier cost sensitive.class
Class for running an arbitrary classifier on data that has been passed through an arbitrary filter.class
Class for performing additive logistic regression.class
A metaclassifier for handling multi-class datasets with 2-class classifiers.class
A metaclassifier for handling multi-class datasets with 2-class classifiers.class
Class for building an ensemble of randomizable base classifiers.class
Class for running an arbitrary classifier on data that has been passed through an arbitrary filter.class
This method constructs a decision tree based classifier that maintains highest accuracy on training data and improves on generalization accuracy as it grows in complexity.class
Class for combining classifiers.class
Generic wrapper around any classifier to enable weighted instances support.
Uses resampling with weights if the base classifier is not implementing the weka.core.WeightedInstancesHandler interface and there are instance weights other 1.0 present. -
Uses of WeightedInstancesHandler in weka.classifiers.misc
Modifier and TypeClassDescriptionclass
Wrapper classifier that addresses incompatible training and test data by building a mapping between the training data that a classifier has been built with and the incoming test instances' structure. -
Uses of WeightedInstancesHandler in weka.classifiers.rules
Modifier and TypeClassDescriptionclass
Class for building and using a simple decision table majority classifier.
For more information see:
Ron Kohavi: The Power of Decision Tables.class
This class implements a propositional rule learner, Repeated Incremental Pruning to Produce Error Reduction (RIPPER), which was proposed by William W.class
The single antecedent in the rule, which is composed of an attribute and the corresponding value.class
The antecedent with nominal attributeclass
The antecedent with numeric attributeclass
This class implements a single rule that predicts specified class.class
Class for generating a PART decision list.class
Abstract class of generic ruleclass
Class for building and using a 0-R classifier. -
Uses of WeightedInstancesHandler in weka.classifiers.trees
Modifier and TypeClassDescriptionclass
Class for building and using a decision stump.class
A Hoeffding tree (VFDT) is an incremental, anytime decision tree induction algorithm that is capable of learning from massive data streams, assuming that the distribution generating examples does not change over time.class
Class for generating a pruned or unpruned C4.5 decision tree.class
Class for constructing a forest of random trees.
For more information see:
Leo Breiman (2001).class
Class for constructing a tree that considers K randomly chosen attributes at each node.class
Fast decision tree learner. -
Uses of WeightedInstancesHandler in weka.classifiers.trees.lmt
Modifier and TypeClassDescriptionclass
Class for logistic model tree structure.class
Base/helper class for building logistic regression models with the LogitBoost algorithm. -
Uses of WeightedInstancesHandler in weka.clusterers
Modifier and TypeClassDescriptionclass
Simple EM (expectation maximisation) class.
EM assigns a probability distribution to each instance which indicates the probability of it belonging to each of the clusters.class
Class for wrapping a Clusterer to make it return a distribution and density.class
Cluster data using the k means algorithm. -
Uses of WeightedInstancesHandler in weka.core.converters
Modifier and TypeClassDescriptionclass
Writes to a destination in arff text format.class
Writes to a destination that is in JSON format.
The data can be compressed with gzip, in order to save space.
For more information, see JSON homepage:
http://www.json.org/class
Serializes the instances to a file with extension bsi.class
Writes to a destination that is in the XML version of the ARFF format. -
Uses of WeightedInstancesHandler in weka.filters
Modifier and TypeClassDescriptionclass
A simple instance filter that passes all instances directly through.class
Applies several filters successively.class
A simple filter that allows the relation name of a set of instances to be altered in various ways. -
Uses of WeightedInstancesHandler in weka.filters.supervised.attribute
Modifier and TypeClassDescriptionclass
A filter for adding the classification, the class distribution and an error flag to a dataset with a classifier.class
A supervised attribute filter that can be used to select attributes.class
Converts the values of nominal and/or numeric attributes into class conditional probabilities.class
Changes the order of the classes so that the class values are no longer of in the order specified in the header.class
An instance filter that discretizes a range of numeric attributes in the dataset into nominal attributes.class
Merges values of all nominal attributes among the specified attributes, excluding the class attribute, using the CHAID method, but without considering re-splitting of merged subsets.class
Converts all nominal attributes into binary numeric attributes.class
* A filter that uses a PartitionGenerator to generate partition membership values; filtered instances are composed of these values plus the class attribute (if set in the input data) and rendered as sparse instances. -
Uses of WeightedInstancesHandler in weka.filters.supervised.instance
Modifier and TypeClassDescriptionclass
Reweights the instances in the data so that each class has the same total weight. -
Uses of WeightedInstancesHandler in weka.filters.unsupervised.attribute
Modifier and TypeClassDescriptionclass
An 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.class
An instance filter that adds a new attribute to the dataset.class
A 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.class
An instance filter that creates a new attribute by applying a mathematical expression to existing attributes.class
An instance filter that adds an ID attribute to the dataset.class
A filter that adds new attributes with user specified type and constant value.class
Adds the labels from the given list to an attribute if they are missing.class
Centers all numeric attributes in the given dataset to have zero mean (apart from the class attribute, if set).class
Changes the date format used by a date attribute.class
Filter that can set and unset the class index.class
A 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).class
An instance filter that copies a range of attributes in the dataset.class
A filter for turning date attributes into numeric ones.class
An instance filter that discretizes a range of numeric attributes in the dataset into nominal attributes.class
This 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.class
Converts String attributes into a set of attributes representing word occurrence (depending on the tokenizer) information from the text contained in the strings.class
A filter that creates a new dataset with a Boolean attribute replacing a nominal attribute.class
Modify numeric attributes according to a given mathematical expression.class
Merges all values of the specified nominal attributes that are insufficiently frequent.class
Merges many values of a nominal attribute into one value.class
Merges two values of a nominal attribute into one value.class
Converts all nominal attributes into binary numeric attributes.class
Converts a nominal attribute (i.e.class
Normalizes all numeric values in the given dataset (apart from the class attribute, if set).class
A filter that 'cleanses' the numeric data from values that are too small, too big or very close to a certain value, and sets these values to a pre-defined default.class
Converts 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.class
A filter for turning numeric attributes into date attributes.class
A filter for turning numeric attributes into nominal ones.class
Transforms numeric attributes using a given transformation method.class
A simple instance filter that renames the relation, all attribute names and all nominal attribute values.class
An attribute filter that converts ordinal nominal attributes into numeric ones
Valid options are:class
A filter that applies filters on subsets of attributes and assembles the output into a new dataset.class
Discretizes 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.class
Reduces the dimensionality of the data by projecting it onto a lower dimensional subspace using a random matrix with columns of unit length.class
Chooses a random subset of non-class attributes, either an absolute number or a percentage.class
An filter that removes a range of attributes from the dataset.class
Removes attributes based on a regular expression matched against their names.class
Removes attributes of a given type.class
This filter removes attributes that do not vary at all or that vary too much.class
This filter is used for renaming attributes.
Regular expressions can be used in the matching and replacing.
See Javadoc of java.util.regex.Pattern class for more information:
http://java.sun.com/javase/6/docs/api/java/util/regex/Pattern.htmlclass
Renames the values of nominal attributes.class
A filter that generates output with a new order of the attributes.class
Replaces all missing values for nominal and numeric attributes in a dataset with the modes and means from the training data.class
Replaces all missing values for nominal, string, numeric and date attributes in the dataset with user-supplied constant values.class
A filter that can be used to introduce missing values in a dataset.class
A simple filter for sorting the labels of nominal attributes.class
Standardizes all numeric attributes in the given dataset to have zero mean and unit variance (apart from the class attribute, if set).class
Converts a range of string attributes (unspecified number of values) to nominal (set number of values).class
Converts string attributes into a set of numeric attributes representing word occurrence information from the text contained in the strings.class
Swaps two values of a nominal attribute.class
An 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.class
An 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.class
Transposes the data: instances become attributes and attributes become instances. -
Uses of WeightedInstancesHandler in weka.filters.unsupervised.instance
Modifier and TypeClassDescriptionclass
An instance filter that converts all incoming instances into sparse format.class
Randomly shuffles the order of instances passed through it.class
Removes all duplicate instances from the first batch of data it receives.class
A filter that removes instances which are incorrectly classified.class
A filter that removes a given range of instances of a dataset.class
Filters instances according to the value of an attribute.class
An instance filter that converts all incoming sparse instances into non-sparse format.class
Filters instances according to a user-specified expression.
Examples:
- extracting only mammals and birds from the 'zoo' UCI dataset:
(CLASS is 'mammal') or (CLASS is 'bird')
- extracting only animals with at least 2 legs from the 'zoo' UCI dataset:
(ATT14 >= 2)
- extracting only instances with non-missing 'wage-increase-second-year'
from the 'labor' UCI dataset:
not ismissing(ATT3)