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I am trying to get the sentiment tags for a given text in Apache-Stanbol .

I have added the "sentiment-word-classifier" engine to a enhancer chain, i have also added all the required chains to be able to extract the tokens and their parts of speech tags.

This is the composition of my enhancer chain :

langid ( required , LangIdEnhancementEngine)
opennlp-sentence ( required , OpenNlpSentenceDetectionEngine)
stanford-nlp ( required , RestfulNlpAnalysisEngine)
opennlp-token ( required , OpenNlpTokenizerEngine)
opennlp-pos ( required , OpenNlpPosTaggingEngine)
sentiment-wordclassifier ( required , SentimentEngine)
opennlp-chunker ( required , OpenNlpChunkingEngine)
pos-chunker ( required , PosChunkerEngine)

This is the sufficient input for sentiment-word-classifier right?? Still am not getting any sentiment tags. Can somebody throw some light on what i am missing ??

Thanks

daniula
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user3733488
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  • Have you resolved the problem? Actually I am using stanbol to do sentiment analysis, but I don't know where to start. I have well launched the server at localhost, what's next? Thanks! – C. Wang Feb 22 '16 at 09:59

2 Answers2

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Sentiment analysis needs two engines to be included

  • sentiment-wordclassifier
  • sentiment-summarization

The sentiment-wordclassifier classifies tokens with sentiment values (based on dictionaries entries of a language). NOTE that you will also need to provide those dictionaries (see the modules under data/sentiment). Results are stored in the AnalyzedText content part.

The sentiment-summarization uses those classifications to create sentiments for phrases, sentences and the whole documents. Summarization does consider negations and also ties to assign adjectives holding a sentiment to the correct noun or pronoun. The result of sentiment-summarization are added to the Enhancement Results as fise:SentimentAnnotation

Westei
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Same here. Started out with a chain which had just the sentiment-wordclassifier engine and was getting nothing. Then spotted in the stanbol/logs/error.log a helpful message about analyzed content not getting to the sentiment engine and a suggestion to include opennlp-pos. Looked at the other chains and included opennlp-sentence, opennlp-token in addition to the opennlp-pos. Was still getting nothing. Then came across your question and the mention of the data/sentiment module. Changed to the data/sentiment/sentiwordnet folder and did mvn install -DskipTests -PinstallBundle -Dsling=http://your.stanbol.com:8080/system/console. Am now seeing sentiment output and trying to make sense of it.

Edi Bice
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