8e958d70fa54c0b249f7e6de27fd57cbaa7563d4,algorithm/rating/SlopeOne.py,SlopeOne,predict,#SlopeOne#Any#Any#,29

Before Change

                    continue
            sum = 0
            freqSum = 0
            for item2 in itemDict.keys():
                sum = sum + ((itemDict[item2] + self.diffAverage[u][item2]) * self.freq[u][item2])
                freqSum = freqSum + self.freq[u][item2]
            pred = sum/freqSum

        else:
            pred = self.dao.itemMeans[u]

After Change

                sum += (rating + diff) * count
                freqSum += count
            try:
                pred = float(sum)/freqSum
            except ZeroDivisionError:
                pred = self.dao.userMeans[u]
        elif self.dao.containsItem(i):

Instances