You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@mahout.apache.org by "Suneel Marthi (JIRA)" <ji...@apache.org> on 2014/04/28 03:34:16 UTC
[jira] [Resolved] (MAHOUT-1236) Need a cleaned up serialized format
for Vectors to handle names and all other kinds of things
[ https://issues.apache.org/jira/browse/MAHOUT-1236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Suneel Marthi resolved MAHOUT-1236.
-----------------------------------
Resolution: Won't Fix
resolving this as Won't Fix
> Need a cleaned up serialized format for Vectors to handle names and all other kinds of things
> ---------------------------------------------------------------------------------------------
>
> Key: MAHOUT-1236
> URL: https://issues.apache.org/jira/browse/MAHOUT-1236
> Project: Mahout
> Issue Type: Bug
> Reporter: Ted Dunning
> Fix For: 1.0
>
>
> Our current serialization is subject several ills
> a) it breaks alignment by having a 1 byte flag field (evil, generic)
> b) it doesn't handle any kind of extensible format like protobufs so it isn't future-proof
> c) it doesn't handle named vectors very well
> d) it totally breaks with any other kind of decoration as with Centroids or WeightedVector or ... (see b)
> I propose that we use the current tag byte on the current serialization with a new flag bit that indicates that the vector will use a protobuf encoding. Then 3 bytes will be skipped to restore alignment. Then there will be a protobuf encoding for the vector.
--
This message was sent by Atlassian JIRA
(v6.2#6252)