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| ID | Category | Severity | Reproducibility | Date Submitted | Last Update | |||||||
| 0000472 | [ALGLIB] Data analysis | feature | have not tried | 2012-07-12 19:10 | 2018-01-02 17:22 | |||||||
| Reporter | SergeyB | View Status | public | |||||||||
| Assigned To | SergeyB | |||||||||||
| Priority | normal | Resolution | open | Platform | ||||||||
| Status | assigned | OS | ||||||||||
| Projection | none | OS Version | ||||||||||
| ETA | none | Fixed in Version | Product Version | |||||||||
| Target Version | Next 'Data mining' release | Product Build | ||||||||||
| Summary | 0000472: Cluster analysis improvements | |||||||||||
| Description |
SSE-based distance matrix calculation for L1 and L-inf norms. Sparse input matrices RNN algorithm and other improvements: * http://www.daimi.au.dk/~zxr/papers/quadtreeUPGMA.pdf * http://thames.cs.rhul.ac.uk/~fionn/old-articles/complexities/ Divisive clustering (can be easily parallelized). Better k-means: * smart iteration: http://www.siam.org/proceedings/datamining/2010/dm10_012_hamerlyg.pdf Penalized k-means and penalized-weighted kmeans? * George C. Tseng, articles Different clustering techniques from http://en.wikipedia.org/wiki/Cluster_analysis : * EM and Gaussian * DBSCAN and OPTICS * hard vs. soft * other exotic varietes * coefficients Different cluster validation coefficients: http://scikit-learn.org/stable/modules/clustering.html http://www.cs.kent.edu/~jin/DM08/ClusterValidation.pdf http://web.itu.edu.tr/sgunduz/courses/verimaden/paper/validity_survey.pdf |
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| Steps To Reproduce | ||||||||||||
| Additional Information | ||||||||||||
| Programming language | Unspecified | |||||||||||
| Attached Files | ||||||||||||
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Issue History |
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| Date Modified | Username | Field | Change |
| 2012-07-12 19:10 | SergeyB | New Issue | |
| 2012-07-12 19:10 | SergeyB | Programming language | => Unspecified |
| 2012-07-12 19:10 | SergeyB | Target Version | 3.7.0 => Near future |
| 2012-09-07 15:07 | SergeyB | Summary | Cluster validation features => Cluster analysis improvements |
| 2012-09-07 15:07 | SergeyB | Description Updated | |
| 2012-10-24 11:55 | SergeyB | Description Updated | |
| 2013-04-06 13:23 | SergeyB | Description Updated | |
| 2013-04-06 13:28 | SergeyB | Description Updated | |
| 2013-04-06 13:33 | SergeyB | Description Updated | |
| 2013-04-06 13:51 | SergeyB | Description Updated | |
| 2013-05-01 20:11 | SergeyB | Description Updated | |
| 2013-07-19 11:41 | SergeyB | Description Updated | |
| 2013-10-05 15:05 | SergeyB | Description Updated | |
| 2013-10-05 15:13 | SergeyB | Target Version | Near future => Next 'Data mining' release |
| 2014-08-16 13:08 | SergeyB | Description Updated | |
| 2015-01-22 15:57 | SergeyB | Description Updated | |
| 2018-01-02 17:22 | SergeyB | Status | new => assigned |
| 2018-01-02 17:22 | SergeyB | Assigned To | => SergeyB |
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