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Repository for textmining project

Topic Analysis and clustering of creepypasta in Swedish

This repository contains the code used to complete a project work as part of the course 732A92 - Text mining at Linköping University.

The code is organised into a number of scripts designed to be run in sequence, all of which are found under the R/-directory.

  1. story_getter.R Downloads all the episode stories and saves them into data/episode_download.Rdata.
  2. story_annotation.R Gathers story observations into documents and annotates them with part-of-speech-tags (POS-tags) and lemmatized form. The data is saved to data/annotated_text.RData.
  3. raw_topicmodelling.R and bigram_topicmodelling.R models the actual topics. They are only split into two files in order to be parallized efficently on the machine used to do the modelling. The list of models on different POS-tags and number of topics are saved to data/LDA_raw_models.RData and data/LDA_bigram_models.RData respectively.
  4. story_analysis.R gathers the models and produces graphs and LaTeX-tables used in the report.

The files story_functions.R and story_graphs.R contains various helper functions created to ensure that the modelling-files are kept somewhat clean and readable.

The abstract of the project report is found here.