All Classes and Interfaces

Class	Description
AverageAggregator	A feature aggregator that averages feature values across a feature list.
BasicPipeline	An example implementation of TextPipeline.
BinaryResponseProcessor<T extends Output<T>>	A ResponseProcessor that takes a single value of the field as the positive class and all other values as the negative class.
CasingPreprocessor	A document preprocessor which uppercases or lowercases the input.
CasingPreprocessor.CasingOperation	The possible casing operations.
ColumnarDataSource<T extends Output<T>>	A ConfigurableDataSource base class which takes columnar data (e.g., csv or DB table rows) and generates Examples.
ColumnarFeature	A Feature with extra bookkeeping for use inside the columnar package.
ColumnarIterator	An abstract class for iterators that read data in to a columnar format, usually from a file of some kind.
ColumnarIterator.Row	A representation of a row of untyped data from a columnar data source.
CompletelyConfigurableTrainTest	Build and run a predictor for a standard dataset.
CompletelyConfigurableTrainTest.ConfigurableTrainTestOptions	Command line options.
ConfigurableTrainTest	Build and run a predictor for a standard dataset.
ConfigurableTrainTest.ConfigurableTrainTestOptions	Command line options.
CSVDataSource<T extends Output<T>>	A DataSource for loading separable data from a text file (e.g., CSV, TSV) and applying FieldProcessors to it.
CSVDataSource.CSVDataSourceProvenance	Provenance for CSVDataSource.
CSVIterator	An iterator over a CSV file.
CSVLoader<T extends Output<T>>	Load a DataSource/Dataset from a CSV file.
CSVLoader.CSVLoaderProvenance	Deprecated. Deprecated in 4.2 as CSVLoader now returns a CSVDataSource.
CSVSaver	Saves a Dataset in CSV format suitable for loading by CSVLoader.
DataOptions	Options for working with training and test data in a CLI.
DataOptions.Delimiter	The delimiters supported by CSV files in this options object.
DataOptions.InputFormat	The input formats supported by this options object.
DatasetExplorer	A CLI for exploring a serialised Dataset.
DatasetExplorer.DatasetExplorerOptions	Command line options.
DateExtractor	Extracts the field value and translates it to a LocalDate based on the specified DateTimeFormatter.
DateFieldProcessor	Processes a column that contains a date value.
DateFieldProcessor.DateFeatureType	The types of date features which can be extracted.
DirectoryFileSource<T extends Output<T>>	A data source for a somewhat-common format for text classification datasets: a top level directory that contains a number of subdirectories.
DirectoryFileSource.DirectoryFileSourceProvenance	Provenance for DirectoryFileSource.
DocumentPreprocessor	An interface for things that can pre-process documents before they are broken into features.
DoubleExtractor	Extracts the field value and converts it to a double.
DoubleFieldProcessor	Processes a column that contains a real value.
EmptyResponseProcessor<T extends Output<T>>	A ResponseProcessor that always emits an empty optional.
FeatureAggregator	An interface for aggregating feature values into other values.
FeatureHasher	Hashes the feature names to reduce the dimensionality.
FeatureProcessor	Takes a list of columnar features and adds new features or removes existing features.
FeatureTransformer	A feature transformer maps a list of features to a new list of features.
FieldExtractor<T>	Extracts a value from a field to be placed in an Example's metadata field.
FieldProcessor	An interface for things that process the columns in a data set.
FieldProcessor.GeneratedFeatureType	The types of generated features.
FieldResponseProcessor<T extends Output<T>>	A response processor that returns the value(s) in a given (set of) fields.
FloatExtractor	Extracts the field value and converts it to a float.
IdentityExtractor	Extracts the field value and emits it as a String.
IdentityProcessor	A FieldProcessor which converts the field name and value into a feature with a value of IdentityProcessor.FEATURE_VALUE.
IndexExtractor	An Extractor with special casing for loading the index from a Row.
IntExtractor	Extracts the field value and converts it to a int.
NewsPreprocessor	A document pre-processor for 20 newsgroup data.
NgramProcessor	A text processor that will generate token ngrams of a particular size.
OffsetDateTimeExtractor	Extracts the field value and translates it to an OffsetDateTime based on the specified DateTimeFormatter.
PreprocessAndSerialize	Reads in a Datasource, processes all the data, and writes it out as a serialized dataset.
PreprocessAndSerialize.PreprocessAndSerializeOptions	Command line options.
Quartile	A quartile to split data into 4 chunks.
QuartileResponseProcessor<T extends Output<T>>	Processes the response into quartiles and emits them as classification outputs.
RegexFieldProcessor	A FieldProcessor which applies a regex to a field and generates ColumnarFeatures based on the matches.
RegexFieldProcessor.Mode	Matching mode.
RegexPreprocessor	A simple document preprocessor which applies regular expressions to the input.
ResponseProcessor<T extends Output<T>>	An interface that will take the response field and produce an Output.
ResultSetIterator	An iterator over a ResultSet returned from JDBC.
RowProcessor<T extends Output<T>>	A processor which takes a Map of String to String and returns an Example.
RowProcessor.Builder<T extends Output<T>>	Builder for RowProcessor.
SimpleFieldExtractor<T>	Extracts a value from a single field to be placed in an Example's metadata field.
SimpleStringDataSource<T extends Output<T>>	A version of SimpleTextDataSource that accepts a List of Strings.
SimpleStringDataSource.SimpleStringDataSourceProvenance	Provenance for SimpleStringDataSource.
SimpleTextDataSource<T extends Output<T>>	A dataset for a simple data format for text classification experiments.
SimpleTextDataSource.SimpleTextDataSourceProvenance	Provenance for SimpleTextDataSource.
SplitTextData	Splits data in our standard text format into training and testing portions.
SplitTextData.TrainTestSplitOptions	Command line options.
SQLDataSource<T extends Output<T>>	A DataSource for loading columnar data from a database and applying FieldProcessors to it.
SQLDataSource.SQLDataSourceProvenance	Provenance for SQLDataSource.
SQLDBConfig	N.B.
SQLToCSV	Read an SQL query in on the standard input, write a CSV file containing the results to the standard output.
SQLToCSV.SQLToCSVOptions	Command line options.
SumAggregator	A feature aggregator that aggregates occurrence counts across a number of feature lists.
TextDataSource<T extends Output<T>>	A base class for textual data sets.
TextFeatureExtractor<T extends Output<T>>	An interface for things that take text and turn them into examples that we can use to train or evaluate a classifier.
TextFeatureExtractorImpl<T extends Output<T>>	An implementation of TextFeatureExtractor that takes a TextPipeline and generates ArrayExample.
TextFieldProcessor	A FieldProcessor which takes a text field and runs a TextPipeline on it to generate features.
TextPipeline	A pipeline that takes a String and returns a List of Features.
TextProcessingException	An exception thrown by the text processing system.
TextProcessor	A TextProcessor takes some text and optionally a feature tag and generates a list of Features from that text.
TokenPipeline	A pipeline for generating ngram features.
UniqueAggregator	Aggregates feature tokens, generating unique features.
UniqueProcessor	Processes a feature list, aggregating all the feature values with the same name.
UniqueProcessor.UniqueType	The type of reduction operation to perform.