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  Filename Summary + Labels Uploaded ReleaseDate Size DownloadCount ...
sa_final_feature_selection_vs_expected_accuracy_for_different_dataset.png "orthogonal" feature selection - final feature selection (min cuis in a doc) vs expected accuracy for different dataset   NLP DM ML FS Jan 24 Jan 24 101 KB 6  
not_much_improvement_above_3000.png Not much improvement above 3000 training positive and negative samples   NLP ML INSTANCE SELECTION Jan 12 Jan 12 443 KB 5  
all_77_class_centers_11990_feats.png All 77 HD class centers MDS (cosine of class CUI sums dist) comparison using 11990 features   NLP ML Jan 5 Jan 5 144 KB 5  
all_77_class_centers_14339_feats.png All 77 HD class centers MDS (cosine of class CUI sums dist) comparison using 14339 features   NLP ML Jan 5 Jan 5 144 KB 5  
data_size_vs_nsv.png Artificial data - two gauss data, dependency of size and number of support vectors and margin cleanup   ML DM SVM Oct 2011 Oct 2011 70.4 KB 6  
forward_selection_issues.png Issues with estimation when adding new features in CV loop.   ML FS TC Oct 2011 Oct 2011 26.3 KB 5  
simon_effect_large_p.png So called Simon (2003) effect - Large p dependency Sep 2011 Sep 2011 25.6 KB 6  
simon_effect_sparse.png So colled Simon (2003) effect - sparcisity dependence Sep 2011 Sep 2011 31.6 KB 5  
simple_simon.png So called Simon (2003) effect - F1 dependence Sep 2011 Sep 2011 35.4 KB 5  
wrapper_improvement_diff_thrsh_add.png Different improvement wrapper feature selection rates based on S.A. thresholding techniques - almost additive nature of improvement   NLP ML SA Sep 2011 Sep 2011 57.0 KB 5  
wrapper_improvement_diff_thrsh.png Different improvement wrapper feature selection rates based on S.A. thresholding techniques   ML NLP SA Sep 2011 Sep 2011 36.6 KB 5  
near_additive_nature_of_spreading_activation.png Near additive nature of spreading activation (works only with SVM wrapper feats. sel.)   NLP ML FS Sep 2011 Sep 2011 78.9 KB 5  
correlation_between_R600_and_R900_wrapper.png Relation between wrapper feature selection improvement after 600 and 900 samples   NL NLP FS Sep 2011 Sep 2011 31.3 KB 9  
wrapper_vs_filter_correlation.png Relation between wrapper feature selection improvement and simple filter (all of them look as bad)   ML NLP FS Sep 2011 Sep 2011 27.1 KB 11  
spr_act_has_additive_wrapp_improv.jpg Spreading activation has near additive improvement properties - two good feature give - 2x improvement   NLP ML DM SA Aug 2011 Aug 2011 36.5 KB 7  
small_layered_memory_map_for_hd_hard.png Layered version (spreading activation steps) of neruocognitive pathways for two class problem ("endocarditis,_bacterial" "heart_valve_diseases") - trimmed by frequency   NLP ML TM SA Aug 2011 Aug 2011 425 KB 8  
small_memory_map_for_hd_hard.png Smaller version of neruocognitive pathways for two class problem ("endocarditis,_bacterial" "heart_valve_diseases") - trimmed by frequency   NLP ML SA TM Aug 2011 Aug 2011 218 KB 9  
big_memory_map_for_hd_hard.png Big version of neruocognitive pathways for two class problem ("endocarditis,_bacterial" vs "heart_valve_diseases")   NLP ML SA Aug 2011 Aug 2011 556 KB 5  
dlfs_artif_data_small.jpg Local feature selection for sparse data that simulates classification data with two classes and multiple sub-topics   NLP DM Selection Jun 2011 Jun 2011 610 KB 6  
real_data_hd_medium.jpg Direct local feature selection on real data (pubmed, ohsumed, hd) compared with information gain   NLP ML TM Jun 2011 Jun 2011 989 KB 7  
feats_reduction_direct_local_fs.jpg Direct local features selection on different size subtopics   NLP Learning DM Jun 2011 Jun 2011 440 KB 7  
zzimg.pca_tr_te_scatter.z.gif Spreading activation - feature space projections   NLP ML SA Jun 2011 Jun 2011 135 KB 10  
label_co_occurance_pubmed.png Label co-occurance in OHSUMED Heart Diseases sub-set.   NLP ML DM Jun 2011 Jun 2011 188 KB 7  
  
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