CASM The Centre for the Analysis of Social Media

Socialnetworkanalysis

NaturalLanguageProcessing

The ClassifierNatural language processing

Combines: Mathematics, computer science, linuistics, sociology

Allows: computer to automatically understand language

Is our: analytical window into datasets that are too large to be read

The practical value: of NLP is to create classifiers Classifiers are models that are taught to put Tweets

into categories defined by the analyst: SLUICE GATES

Method 51Natural language processing

duggan on twitter

Understanding the public response to the inquest of Mark Duggan through Social Media

How well do NLP Classifiers work?Natural language processing

Demos paper – ‘Vox Digitas’ – about to be released

Work best when…

Work worst when…Generic, not specific Trained on a specific

conversation, especially events

Trained to make distinctions naturally present in the data (Grounded Theory

Methodology)

Longitudinal, over a long period of time

There is little iterative development with the

data