cbelden

var files = ['1', '2', '3'];
var result = waterfall(files, asyncTask);
result.then(console.log.bind(console));
//> ['1', '2', '3']

// This can be replaced by any async task that returns a promise
function asyncTask(path) {
	return new Promise(function (resolve) {
		resolve(path);
	});

bwhite

"""Information Retrieval metrics

Useful Resources:
http://www.cs.utexas.edu/~mooney/ir-course/slides/Evaluation.ppt
http://www.nii.ac.jp/TechReports/05-014E.pdf
http://www.stanford.edu/class/cs276/handouts/EvaluationNew-handout-6-per.pdf
http://hal.archives-ouvertes.fr/docs/00/72/67/60/PDF/07-busa-fekete.pdf
Learning to Rank for Information Retrieval (Tie-Yan Liu)
"""
import numpy as np