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Mantis - ALGLIB
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| ID: | Category: | Severity: | Reproducibility: | Date Submitted: | Last Update: |
| 643 | Data analysis | feature | have not tried | 2015-01-22 16:01 | 2018-01-25 18:07 |
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| Reporter: | SergeyB | Platform: | |||
| Assigned To: | SergeyB | OS: | |||
| Priority: | normal | OS Version: | |||
| Status: | resolved | Product Version: | |||
| Product Build: | Resolution: | implemented | |||
| Projection: | none | ||||
| ETA: | none | Fixed in Version: | 3.10.0 | ||
| Programming language: | Unspecified | ||||
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| 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 |
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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 | ||
| There are no notes attached to this issue. |