Text Analysis and Visualisation: An Overview of Tools · Summit 1 Jul 2014 more Analyze data...
Transcript of Text Analysis and Visualisation: An Overview of Tools · Summit 1 Jul 2014 more Analyze data...
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Text Analysis and Visualisation:
An Overview of Tools
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□ Segmentation or tokenisation □ Often based on the fact that there are generally
spaces in between words □ Types are the unique words in a document;
tokens are the total number of words
He cried in a whisper at some image, at some vision,--he cried out twice, a cry that was no more than a breath-- 'The horror! The horror!‘
28 tokens and 21 types
Studies based on vocabulary
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Frequency lists
Frequency list produced using TaporWare
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Stopword filtering
Frequency list produced using TaporWare
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Distribution
Voyant Type Frequencies Chart
Voyant BubbleLines
Tapor Distribution
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Collocation
List produced using TaporWare
List produced using AntConc
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Co-occurrence
List produced using TaporWare
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Clustering
Dendrogram produced using Lexomics
PCA created using Tapor and R
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Information extraction
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Conclusions
□ Text analysis tools may produce new views on the text
□ There are caveats; Tools are based on assumptions on how texts ought to be analysed
□ Customisations of existing tools are generally needed for more specific research question
□ Identification of appropriate tools via library
support