[jira] [Closed] (MADLIB-1181) Add an option for weighted average in k-NN
[ https://issues.apache.org/jira/browse/MADLIB-1181?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Frank McQuillan closed MADLIB-1181. --- > Add an option for weighted average in k-NN > -- > > Key: MADLIB-1181 > URL: https://issues.apache.org/jira/browse/MADLIB-1181 > Project: Apache MADlib > Issue Type: Improvement > Components: k-NN >Reporter: Frank McQuillan >Assignee: Himanshu Pandey >Priority: Minor > Fix For: v1.14 > > > Follow on from > https://issues.apache.org/jira/browse/MADLIB-1059 > (please see this JIRA for additional comments) > MADlib does a simple average of the k-nearest neighbors to come up with the > final value for classification and regression. Doing a weighted average > instead > might be a desirable functionality. The weighting for the average can be > based on the > distance of the k-nearest neighbors. > We can probably provide an optional parameter to let users choose how the > final > score has to be computed (avg or weighted avg). > This JIRA applies to classification and regression. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Closed] (MADLIB-1181) Add an option for weighted average in k-NN voting.
[ https://issues.apache.org/jira/browse/MADLIB-1181?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Nikhil closed MADLIB-1181. -- Resolution: Fixed > Add an option for weighted average in k-NN voting. > -- > > Key: MADLIB-1181 > URL: https://issues.apache.org/jira/browse/MADLIB-1181 > Project: Apache MADlib > Issue Type: Improvement > Components: k-NN >Reporter: Frank McQuillan >Assignee: Himanshu Pandey >Priority: Minor > Fix For: v1.13 > > > Follow on from > https://issues.apache.org/jira/browse/MADLIB-1059 > (please see this JIRA for additional comments) > MADlib does a simple average of the k-nearest neighbors to come up with the > final value for both classification and regression. Doing a weighted average > instead > might be a desirable functionality. The weighting for the average can be > based on the > distance of the k-nearest neighbors. > We can probably provide an optional parameter to let users choose how the > final > classification label or regression score has to be computed (avg or weighted > avg). -- This message was sent by Atlassian JIRA (v6.4.14#64029)
