Problem about Evaluation Measure

[ziaoang]

function userSuccess(recommendedItems, relevantItem) = {
if (intersect(recommendedItems, relevantItems) > 0)
1.0
else
0.0
}
should be changed to
function userSuccess(recommendedItems, relevantItem) = {
if (intersect(recommendedItems.take(30), relevantItems) > 0)
1.0
else
0.0
}