Discursive Landscapes and Unsupervised Topic Modeling in IR: A Validation of Text-As-Data Approaches through a New Corpus of UN Security Council Speeches on Afghanistan.
Mirco SchönfeldSteffen EckhardRonny PatzHilde van MeegdenburgPublished in: CoRR (2018)
Keyphrases
- topic modeling
- text corpora
- text data
- information retrieval
- training data
- data points
- high dimensional data
- information extraction
- probabilistic topic models
- text retrieval
- information retrieval systems
- text mining
- knowledge discovery
- probability distribution
- active learning
- prior knowledge
- data analysis
- feature selection