CASM The Centre for the Analysis of Social Media

Social network analysis Natural Language Processing

The Classifier Natural 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 51 Natural 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