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From Grant Ingersoll <>
Subject Use of JIRA was [jira] [Resolved] (MAHOUT-752) Semantic Vectors: generate and use vectors from User/Item Taste data models
Date Mon, 18 Jul 2011 16:53:27 GMT

Begin forwarded message:

> From: "Sean Owen (JIRA)" <>
> Date: July 5, 2011 9:26:16 AM EDT
> To:
> Subject: [jira] [Resolved] (MAHOUT-752) Semantic Vectors: generate and use vectors from
User/Item Taste data models
> Reply-To:
>     [
> Sean Owen resolved MAHOUT-752.
> ------------------------------
>    Resolution: Won't Fix
> If you're just looking to post some code to chat about, Github might be better. JIRA
issues ask for action that results in a change to the project.

I don't think this is quite right.  If he puts it up on Github, then we have to go searching
for it and it is not officially part of the project.  JIRA is a perfectly fine place to explore
ideas with real patches, which, at the end of the discussion may result in a "won't fix",
but it shouldn't be decided up front just because it is still being thought through.  Naturally,
a discussion on dev@ might be warranted first if no code is involved, but by putting it in
JIRA we have captured: the idea, the code, and the contributor's intent to donate it.   Someone
else or Lance may very well come along and improve on it such that it does become commit worthy.
 Iterating on ideas in JIRA should be encouraged and I think Lance let everyone know right
up front that they can choose to ignore this for now if they are so inclined so as to not
waste anyone's time.

> As you say this is not quite ready for commit. The idea seems to duplicate, in different
code, the existing in-memory data model with similarity metrics. 
> I think it's a fine exploration though.
>> Semantic Vectors: generate and use vectors from User/Item Taste data models 
>> ----------------------------------------------------------------------------
>>                Key: MAHOUT-752
>>                URL:
>>            Project: Mahout
>>         Issue Type: New Feature
>>         Components: Collaborative Filtering
>>           Reporter: Lance Norskog
>>           Assignee: Sean Owen
>>           Priority: Minor
>>        Attachments: SemanticVectors.patch
>> This package has two parts:
>> # SemanticVectorFactory creates geometric vectors based on non-geometric User/Item
>> # VectorDataModel stores these and does preference evaluation based on the vectors
and a given DistanceMeasure
>> This is a large exploration of the Semantic Vectors concept: [].
And was the inspiration for this project.
> --
> This message is automatically generated by JIRA.
> For more information on JIRA, see:

Grant Ingersoll

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