# Distributional Semantic Models (ESSLLI 2009)

Start page –
**Schedule** –
Software & data sets –
Bibliography

## Schedule & handouts

Credits: Some of the slides in the course are based on an earlier DSM course taught by Marco Baroni

##### Introduction

##### Foundations of DSMs (Mon, 27 July)

- general introduction & background
- DSMs in a nutshell
- the DSM parameter space: a taxonomy

##### Matrix algebra & vector spaces (Tue, 28 July)

- matrix representation, foundations of matrix algebra
- geometric analysis (norms, distances, similarity & angles)
- implementation: R as an interactive DSM laboratory

Slides, Handout – DSM lab (R script), bnc_vobj_filtered.txt.gz (15 MB) – Homework (R script), potter_tokens.txt.gz (8.9M)

##### DSMs in computational linguistics and cognitive science (Wed, 29 July)

- What can we do with DSM vectors?
- Do DSMs capture interesting aspects of word meaning?

Slides, Handout, Concrete nouns clustering, Concrete nouns MDS

##### Geometric interpretation of DSM spaces (Thu, 30 July)

- more advanced matrix algebra
- distances, norms and angles
- principal components analysis (PCA) as noise reduction

##### SVD (Fri, 31 July, part A)

- singular value decomposition (SVD)
- managing high-dimensional DSMs (SVD, random indexing)