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ID Category Severity Reproducibility Date Submitted Last Update
0000643 [ALGLIB] Data analysis feature have not tried 2015-01-22 16:01 2018-01-25 18:07
Reporter SergeyB View Status public  
Assigned To SergeyB
Priority normal Resolution implemented Platform
Status resolved   OS
Projection none   OS Version
ETA none Fixed in Version 3.10.0 Product Version
  Target Version 3.10.0 Product Build
Summary 0000643: IMPLEMENTED: faster k-means clusterization (blocked, parallel)
Description New incarnation of k-means is much faster than previous version due to several improvements:
* initialization algorithm was remastered - we can choose between random initialization, k-means++ (high-quality but slower and non-parallelizable), and "fast-greedy" algorithm which gives reasonably good results while being cache-efficient and parallelizable.
* main k-means iteration is now blocked and parallelized, which significantly improves performance on large-scale datasets
Steps To Reproduce
Additional Information
Programming language Unspecified
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- Issue History
Date Modified Username Field Change
2015-01-22 16:01 SergeyB New Issue
2015-01-22 16:01 SergeyB Status new => assigned
2015-01-22 16:01 SergeyB Assigned To => SergeyB
2015-01-22 16:01 SergeyB Programming language => Unspecified
2015-01-22 16:01 SergeyB Status assigned => resolved
2015-01-22 16:01 SergeyB Fixed in Version => Next release
2015-01-22 16:01 SergeyB Resolution open => implemented

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