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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
Steps To Reproduce
Additional Information
Programming language Unspecified
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- Issue History
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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