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| //Tutorial at the [[http:// | //Tutorial at the [[http:// | ||
| + | * [[course: | ||
| + | * [[course: | ||
| + | * [[course: | ||
| ===== Tutorial description ===== | ===== Tutorial description ===== | ||
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| An implementation of all methods presented in the tutorial will be made available on this Web site, based on the open-source statistical programming language [[http:// | An implementation of all methods presented in the tutorial will be made available on this Web site, based on the open-source statistical programming language [[http:// | ||
| - | ===== Schedule | + | ===== Instructor |
| - | - **Introduction** | + | This tutorial |
| - | * motivation and brief history of distributional semantics | + | |
| - | * common DSM architectures | + | |
| - | * prototypical applications | + | |
| - | * concrete examples used in the tutorial | + | |
| - | - **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/similarity measures: Euclidean, Minkowski p-norms, cosine, entropy-based, | + | |
| - | * dimensionality reduction: feature selection, SVD, random indexing | + | |
| - | - **Elements | + | |
| - | * 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 | + | |
| - | Each of the five parts will be compressed into a slot of roughly 30 minutes. | + | The tutorial is based on joint work with Alessandro Lenci and Marco Baroni. |
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| + | {{: | ||
| + | Updated versions | ||