dm:start:guidelines
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Indice
Guidelines for the task on data understanding
- Data understanding (30 points)
- Data semantics (3 points)
- Distribution of the variables and statistics (7 points)
- Assessing data quality (missing values, outliers) (7 points)
- Variables transformations (6 points)
- Pairwise correlations and eventual elimination of redundant variables (7 points)
Guidelines for the task on clustering
- Clustering Analysis by K-means: (13 points)
- Choice of attributes and distance function (1 points)
- Identification of the best value of k (5 points)
- Characterization of the obtained clusters by using both analysis of the k centroids and comparison of the distribution of variables within the clusters and that in the whole dataset (7 points)
- Analysis by density-based clustering (9 points)
- Choice of attributes and distance function (2 points)
- Study of the clustering parameters (2 points)
- Characterization and interpretation of the obtained clusters (5 points)
- Analysis by hierarchical clustering (5 points)
- Choice of attributes and distance function (2 points)
- Show and discuss different dendograms using different algorithms (3 points)
- Final evaluation of the best clustering approach and comparison of the clustering obtained (3 points)
Guidelines for the task on Association Rules Mining
- Frequent patterns extraction with different values of support and different types (i.e. frequent, close maximal), (6 points)
- Discussion of the most interesting frequent patterns (7 points)
- Association rules extraction with different values of confidence (6 points)
- Discussion of the most interesting rules (7 points)
- Use the most meaningful rule to replace missing values and evaluate the accuracy (4 points)
Guidelines for the task on Classification
- Learning of different decision trees with different parameters and gain formulas with the object of maximizing the performances (12 points)
- Decision trees interpretation (6 points)
- Decision trees validation with test and training set (6 points)
- Discussion of the best prediction model (6 points)
dm/start/guidelines.1476713372.txt.gz · Ultima modifica: 17/10/2016 alle 14:09 (8 anni fa) da Anna Monreale