mahout-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Bryce Nyeggen (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAHOUT-963) GenericUserPreferenceArray and GenericItemPreferenceArray use selection sorts
Date Fri, 27 Jan 2012 20:44:10 GMT

     [ https://issues.apache.org/jira/browse/MAHOUT-963?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Bryce Nyeggen updated MAHOUT-963:
---------------------------------

    Status: Patch Available  (was: Open)

Changes from selection sort to comb sort
                
> GenericUserPreferenceArray and GenericItemPreferenceArray use selection sorts
> -----------------------------------------------------------------------------
>
>                 Key: MAHOUT-963
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-963
>             Project: Mahout
>          Issue Type: Bug
>          Components: Collaborative Filtering
>    Affects Versions: 0.6
>            Reporter: Bryce Nyeggen
>            Assignee: Sean Owen
>             Fix For: 0.6
>
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> Both PreferenceArray implementations use selection sorts with poor performance.  These
sorts are invoked during construction of GenericDataModels, causing excessive construction
time.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message