Skip to content

Instantly share code, notes, and snippets.

@vtomiris
Last active August 29, 2015 14:02
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
Star You must be signed in to star a gist
Save vtomiris/66237709de440be7587c to your computer and use it in GitHub Desktop.
import org.grouplens.lenskit.knn.item.*
import org.grouplens.lenskit.transform.normalize.*
import org.grouplens.lenskit.eval.metrics.topn.*;
trainTest {
dataset crossfold("ml-100k") {
source csvfile("ml-100k/u.data"){ // relative (or absolute) path to the dataset. In the current format, it assumes that you have a folder named "ml-100k" containing the "u.data" file
delimiter "\t"
domain {
minimum 1.0
maximum 5.0
precision 1.0
}
}
}
algorithm("PersMean") {
bind ItemScorer to UserMeanItemScorer
bind (UserMeanBaseline, ItemScorer) to ItemMeanRatingItemScorer
}
metric RMSEPredictMetric
metric topNnDCG {
listSize 10
candidates ItemSelectors.allItems()
exclude ItemSelectors.trainingItems()
}
output "eval-results.csv"
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment