Hi Team, I'm looking for information regarding MF_ALS algorithm's log version if implemented. In original Hu et al.'s paper "Collaborative filtering for implicit feedback datasets", there're two different ways to construct confidence level c(ui) from raw info r(ui): the vanilla version is c(ui)=1+alpha*r(ui), the log version is c(ui)=1+alpha*log(1+rui/epsilon). I'm guessing the default version in pyspark.ml.recommedation.ALS is vanilla version. Not sure if we have log version available or not.
Any help is appreciated :) James -- Sent from: http://apache-spark-user-list.1001560.n3.nabble.com/ --------------------------------------------------------------------- To unsubscribe e-mail: user-unsubscr...@spark.apache.org
