22-ml-unsupervised-scaling.qmd

# Unsupervised Document Scaling {#sec-ml-unsupervised-scaling}

## Objectives

-   Notion of unsupervised scaling, based on distance
-   LSA
-   Correspondence analysis
-   The "wordfish" model

## Methods

Applicable methods for the objectives listed above.

## Examples

Examples here.

## Issues

The hazards of *ex post* interpretation of scaling.

Dimensionality.

## Further Reading

Additional resources from libraries or the web.

## Exercises

Add some here.