You could use the string indexer to convert your string userids and product ids numeric value. http://spark.apache.org/docs/latest/ml-features.html#stringindexer
Thanking You --------------------------------------------------------------------------------- Praveen Devarao IBM India Software Labs --------------------------------------------------------------------------------- "Courage doesn't always roar. Sometimes courage is the quiet voice at the end of the day saying I will try again" From: glen <cng...@126.com> To: "Devi P.V" <devip2...@gmail.com> Cc: "user@spark.apache.org" <user@spark.apache.org> Date: 24/08/2016 02:10 pm Subject: Re: Spark MLlib:Collaborative Filtering Hash it to int On 2016-08-24 16:28 , Devi P.V Wrote: Hi all, I am newbie in collaborative filtering.I want to implement collaborative filtering algorithm(need to find top 10 recommended products) using Spark and Scala.I have a rating dataset where userID & ProductID are String type. UserID ProductID Rating b3a68043-c1 p1-160ff5fDS-f74 1 b3a68043-c2 p5-160ff5fDS-f74 1 b3a68043-c0 p9-160ff5fDS-f74 1 I tried ALS algorithm using spark MLlib.But it support rating userID & productID only Integer type.How can I solve this problem? Thanks In Advance
