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[[course: | [[course: | ||
**Schedule** – | **Schedule** – | ||
- | [[course: | + | [[course: |
[[course: | [[course: | ||
===== Schedule & handouts ===== | ===== Schedule & handouts ===== | ||
+ | |||
+ | === Part 1 === | ||
+ | |||
+ | [[http:// | ||
+ | |||
+ | * **Introduction** | ||
+ | * motivation and brief history of distributional semantics | ||
+ | * common DSM architectures | ||
+ | * prototypical applications | ||
+ | |||
+ | * **Taxonomy of DSM parameters** including | ||
+ | * size and type of context window | ||
+ | * feature scaling (tf.idf, statistical association measures, ...) | ||
+ | * normalisation and standardisation of rows and/or columns | ||
+ | * distance/ | ||
+ | * dimensionality reduction: feature selection, SVD, random indexing (RI) | ||
+ | |||
+ | * **Usage and evaluation of DSM** | ||
+ | * what to do with DSM distances | ||
+ | * attributional vs. relational similarity | ||
+ | * evaluation tasks & results for attributional similarity | ||
+ | |||
+ | ---- | ||
+ | |||
+ | === Part 2 === | ||
+ | |||
+ | {{: | ||
+ | |||
+ | //Part 2 was not covered in the tutorial session at NAACL-HLT 2010. An extended version of the presentation slides & handout has been superseded by a five-part tutorial presented at [[course: | ||
+ | \\ | ||
+ | \\ | ||
+ | |||
+ | * **Elements of matrix algebra** for DSM | ||
+ | * basic matrix and vector operations | ||
+ | * norms and distances, angles, orthogonality | ||
+ | * projection and dimensionality reduction | ||
+ | |||
+ | * **Making sense of DSMs**: mathematical analysis and visualisation techniques | ||
+ | * nearest neighbours and clustering | ||
+ | * semantic maps: PCA, MDS, SOM | ||
+ | * visualisation of high-dimensional spaces | ||
+ | * supervised classification based on DSM vectors | ||
+ | * understanding dimensionality reduction with SVD and RI | ||
+ | * term-term vs. term-context matrix, connection to first-order association | ||
+ | * SVD as a latent class model | ||
+ | |||
+ | * **Current research topics** and future directions | ||
+ | * overview of current research on DSMs | ||
+ | * evaluation tasks and data sets | ||
+ | * available " | ||
+ | * limitations and key problems of DSMs | ||
+ | * trends for future work | ||