Package org.opensextant.extraction

package org.opensextant.extraction

Extraction Fundamentals

Extraction fundamentals include TextEntity, a span in free text, and TextMatch a TextEntity generated by an extractor, matcher, or rule. A span is defined as a character start offset and end offset. A TextEntity provides basic reasoning for span logic and math: compare spans before, after within, overlap, etc.

Beyond that, the extraction helpers here provide specific Solr tagger support, match filteration, match navigation, and match metrics.

Related Packages

Package	Description
org.opensextant
org.opensextant.annotations	DeepEye is an approach for simplifying typical NLP annotation exchanges.
org.opensextant.data	Xponents Data Model
org.opensextant.output	Xponents Output Formatting using GISCore
org.opensextant.processing	Processing Basics: Parameters, Results Handlers, Pipelining
org.opensextant.util	Utilities for Extraction

Class	Description
ExtractionException	An exception to be thrown when place name matching goes awry.
ExtractionMetrics	This is a holder for tracking various common measures: No.
ExtractionResult
Extractor	For now, this interface is closer to an AbstractExtractor where a clean interface might be output = Extractor.extract(input) This interface specifies more
MatcherUtils
MatchFilter	The Class MatchFilter.
NormalizationException
TextEntity	A very simple struct to hold data useful for post-processing entities once found.
TextMatch	A variation on TextEntity that also records pattern metadata