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Posted to user@hivemall.apache.org by Kangfei Zhao <zk...@gmail.com> on 2018/07/10 10:18:36 UTC

linear algebra operation UDF for HIVE

Hi,

I'm wondering if there are linear algebra UDFs for HIVE, which do numeric
computation on array/vector and matrix? The on line guide mentions those
functions.(
https://hivemall.incubator.apache.org/userguide/misc/generic_funcs.html#vector)
But when I import hivemall 0.5.0 to Hive, I did't find them. (e.g.
vector_add). It seems they are only supported in Spark rather than Hive?

Best,
Kangfei

*****************************************************************************
Department of Systems Engineering and Engineering Management
The Chinese University of Hong Kong
William M. Engineering Building, Rm 801
Tel:3943 8326
Email:kfzhao@se.cuhk.edu.hk <kf...@se.cuhk.edu.hk>;zkf1105@gmail.com
*****************************************************************************

Re: linear algebra operation UDF for HIVE

Posted by Makoto Yui <my...@apache.org>.

Hi Kangfei,

Vector functions imported from Brickhouse is recently merged into master branch.
https://github.com/apache/incubator-hivemall/commit/49496032498182baa60e5f93a1f3717359909433

So, you need to build from source as follows or wait for the next release.

export JAVA_HOME=`/usr/libexec/java_home -v 1.7`
export JAVA8_HOME=`/usr/libexec/java_home -v 1.8`
export MAVEN_OPTS=-XX:MaxPermSize=256m
bin/build.sh

Thanks,
Makoto
2018年7月10日(火) 19:18 Kangfei Zhao <zk...@gmail.com>:
>
> Hi,
>
> I'm wondering if there are linear algebra UDFs for HIVE, which do numeric computation on array/vector and matrix? The on line guide mentions those functions.(https://hivemall.incubator.apache.org/userguide/misc/generic_funcs.html#vector) But when I import hivemall 0.5.0 to Hive, I did't find them. (e.g. vector_add). It seems they are only supported in Spark rather than Hive?
>
> Best,
> Kangfei
>
> *****************************************************************************
> Department of Systems Engineering and Engineering Management
> The Chinese University of Hong Kong
> William M. Engineering Building, Rm 801
> Tel:3943 8326
> Email:kfzhao@se.cuhk.edu.hk;zkf1105@gmail.com
> *****************************************************************************

-- 
Makoto YUI <myui AT apache.org>
Research Engineer, Treasure Data, Inc.
http://myui.github.io/