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Exercises for Patterns in Recordings

Exercises for Patterns in Recordings

from DHOxSS 2015-16

Ben Fields

July 05, 2016

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  1. Patterns in Recording -
    Ben Fields

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  2. WEKA basics
    • Launch the WEKA

    • Select ‘Explorer’

    • Load

    • Select various Attributes

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  3. WEKA basics
    • Attribute selection with
    regular expressions (‘.*’ is
    an expanding wild card)

    • Find all the MFCC

    • also select ‘CLASS’

    • press ‘Invert’, then

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  4. using a classifier
    • Select ‘Classify’ tab

    • ‘Choose’ >>

    • set test options to

    • press ‘Start’

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  5. putting it all together
    • now repeat the whole process using LPC features

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  6. Explore more files and
    • Load ‘training_data_after_parsing.arff’

    • Classify against the CLASS mood labels using Random
    Forests and J48. Which performs better? Which classes
    are most confused?

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