Package com.aliasi.chunk

Classes for extracting meaningful chunks (spans) of text.

See: Description

Interface Summary

Interface	Description
Chunk	The Chunk interface specifies a slice of a character sequence, a chunk type and a chunk score.
Chunker	The Chunker interface specifies methods for returning a chunking given a character sequence or character slice.
Chunking	The Chunking interface specifies a set of chunks over a shared underlying character sequence.
ConfidenceChunker	The ConfidenceChunker interface specifies a method for returning an iterator over chunks in order of confidence.
NBestChunker	An NBestChunker is a chunker that is able to return results iterating over scored chunkings or scored chunks in order of decreasing likelihood.
TagChunkCodec	A TagChunkCodec provides a means of coding chunkings as taggings and decoding (string) taggings back to chunkings.

Class Summary

Class	Description
AbstractCharLmRescoringChunker<B extends NBestChunker,O extends LanguageModel.Process,C extends LanguageModel.Sequence>	An AbstractCharLmRescoringChunker provides the basic character language-model rescoring model used by the trainable CharLmRescoringChunker and its compiled version.
BioTagChunkCodec	The BioTagChunkCodec implements a chunk to tag coder/decoder based on the BIO encoding scheme and a specified tokenizer factory.
CharLmHmmChunker	A CharLmHmmChunker employs a hidden Markov model estimator and tokenizer factory to learn a chunker.
CharLmRescoringChunker	A CharLmRescoringChunker provides a long-distance character language model-based chunker that operates by rescoring the output of a contained character language model HMM chunker.
ChunkAndCharSeq	The ChunkAndCharSeq is an immutable composite of a chunk and a character sequence.
ChunkerEvaluator	The ChunkerEvaulator class provides an evaluation framework for chunkers.
ChunkFactory	The ChunkFactory provides static factory methods for creating chunks from components.
ChunkingEvaluation	A ChunkingEvaluation stores and reports the results of evaluating response chunkings against reference chunkings.
ChunkingImpl	A ChunkingImpl provides a mutable, set-based implementation of the chunking interface.
HmmChunker	An HmmChunker uses a hidden Markov model to perform chunking over tokenized character sequences.
IoTagChunkCodec	The IoTagChunkCodec implements a chunk to tag coder/decoder based on the IO encoding scheme and a specified tokenizer factory.
RegExChunker	A RegExChunker finds chunks that matches regular expressions.
RescoringChunker<B extends NBestChunker>	A RescoringChunker provides first best, n-best and confidence chunking by rescoring n-best chunkings derived from a contained chunker.
TagChunkCodecAdapters	The TagChunkCodecAdapters class contains static utility methods for adapting tagging handlers to chunking handlers and vice-versa using tag-chunk codecs.
TokenShapeChunker	A TokenShapeChunker uses a named-entity TokenShapeDecoder and tokenizer factory to implement entity detection through the chunk.Chunker interface.
TrainTokenShapeChunker	A TrainTokenShapeChunker is used to train a token and shape-based chunker.

Package com.aliasi.chunk Description

Classes for extracting meaningful chunks (spans) of text.