CODEWITHSUNDEEP
javanlpstanford-nlp
Alessio Palmero Aprosio
Alessio Palmero Aprosio

Reputation: 401

Changing CoreNLP settings at runtime

I'm using Stanford CoreNLP pipeline, and I wonder whether there is a way to edit basic settings without restarting the whole tool (avoiding the reload of the models).

Now I have:

Properties props = new Properties();
props.setProperty("tokenize.whitespace", "true");
props.setProperty("annotators", "tokenize, ssplit, pos, ...");
StanfordCoreNLP stanfordPipeline = new StanfordCoreNLP(props);

I'd like to change the tokenize.whitespace setting on the fly, without restarting everything. Is it possible?

Upvotes: 1

Views: 361

Answers (1)

Nikita Astrakhantsev
Nikita Astrakhantsev

Reputation: 4749

You should only create a new instance of StanfordCoreNLP with other properties; all common annotators and their models won't be reloaded, because StanfordCoreNLP uses static AnnotatorPool (see src code, line 103), where AnnotatorPool is:

An object for keeping track of Annotators. Typical use is to allow multiple pipelines to share any Annotators in common.

For example, if multiple pipelines exist, and they both need a ParserAnnotator, it would be bad to load two such Annotators into memory. Instead, an AnnotatorPool will only create one Annotator and allow both pipelines to share it.

(taken from javadoc)

Upvotes: 1

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