alex/restaurant-search
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Create compatibility feature

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This commit is contained in:
Alex Yatskov 2015-03-20 20:15:47 +09:00
parent 850274efdf
commit 1402d60100
1 changed files with 10 additions and 1 deletions
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11
server/search.js
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@ -193,6 +193,9 @@ function computeRecordGeo(records, context) {
}
function computeRecordPopularity(records, context, callback) {
var scoreMin = 0;
var scoreMax = 0;
async.each(
records,
function(record, callback) {
@ -213,12 +216,18 @@ function computeRecordPopularity(records, context, callback) {
});
var groupScore = innerProduct(context.profile, reviewFeatures);
scoreMin = Math.min(scoreMin, groupScore);
scoreMax = Math.max(scoreMax, groupScore);
callback(err, groupScore);
}
);
},
function(err, groupScores) {
record.groupScores = groupScores;
var scoreSum = _.reduce(groupScores, function(a, b) { return a + b; });
var scoreAvg = scoreSum / groupScores.length;
record.features.compatibility = (scoreAvg - scoreMin) / (scoreMax - scoreMin);
callback(err);
}
);