22 Unsupervised Document Scaling
22.1 Objectives
- Notion of unsupervised scaling, based on distance
- LSA
- Correspondence analysis
- The “wordfish” model
22.2 Methods
Applicable methods for the objectives listed above.
22.3 Examples
Examples here.
22.4 Issues
The hazards of ex post interpretation of scaling.
Dimensionality.
22.5 Further Reading
Additional resources from libraries or the web.
22.6 Exercises
Add some here.