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Code Modules

Sean Finan edited this page Feb 9, 2026 · 1 revision

Apache cTAKES has a collection of different code modules, each handling different aspects of clinical NLP.

Below is a list of cTAKES code modules. Click on the Module Name to learn more about it.

Module NamePurpose or Description
ctakes-assertionDetermines mention real-world status, such as negated, uncertain or used in a generic way.
ctakes-assertion-zoner
ctakes-chunkerIdentifies multi-token chunks, such as noun phrases and verb phrases.
ctakes-clinical-pipelineA piper file with a pipeline for commonly desired information. Deprecated.
ctakes-constituency-parserAdds terminal treebank nodes, required for coreferences.
ctakes-context-tokenizerCreates special token types such as dates and fractions.
ctakes-coreCode and resources required by all or most other cTAKES modules.
ctakes-coreferenceIdentifies mentions that refer to the same real-world entity.
ctakes-dependency-parserFinds dependencies between words.
ctakes-dictionary-lookupFinds entries of text provided in dictionaries. Deprecated.
ctakes-dictionary-lookup-fastIdentifies terms in text and normalizes them to codes in an ontology.
ctakes-distributionBuilds a binary installation of the cTAKES application.
ctakes-dockhandSmall Installation tool.
ctakes-drug-nerIdentifies attributes of drug mentions. Deprecated.
ctakes-examplesExamples of code, resources, and piper files.
ctakes-fhirRead and Writes basic FHIR R2 files.
ctakes-guiCode used for cTAKES GUI tools.
ctakes-lvgCreates lexical variants. Deprecated.
ctakes-mastif-zoner
ctakes-ne-contextsProvides a mechanism for examining the context of existing annotations.
ctakes-pbjA Python Bridge to Java.
ctakes-pos-taggerA UIMA wrapper around the popular OpenNLP part-of-speech tagger.
ctakes-preprocessorA usable CDA sectionizer. Deprecated.
ctakes-regression-testOld tests. Deprecated.
ctakes-relation-extractorIdentifies relations between certain events, entities, and modifiers.
ctakes-side-effectExtracts physician-asserted drug side effects.
ctakes-smoking-statusIdentifies patient smoking status.
ctakes-template-fillerCopy attributes from one annotation to another. Deprecated.
ctakes-temporalIdentifies events, temporal expressions, and their relations on a timeline.
ctakes-tiny-restTiny example rest service.
ctakes-type-systemRepresents common clinical elements, document elements, and stsandard NLP elements.
ctakes-utilsUtilities for old code. Deprecated.
ctakes-web-restBuilds a standalone product, Apache cTaKES Web REST.
ctakes-ytexAlternatives for some basic annotators. Deprecated.
ctakes-ytex-uimaAlternatives for some basic annotators. Deprecated.
ctakes-ytex-webSimple Web application for basic NLP tasks. Deprecated.

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