Hi, I want to build a recommendation model based on Mahout. My dataset format is in the format of
userID, itemID, rating timestamp tag1 tag2 tag3. Thus, I think I need to extend the FileDataModel. I looked into *JesterDataModel* as an example. However, I have a problem with the logic flow. In its *buildModel()* method, an empty map "data" is first constructed. It is then thrown into processFile. I assume that "data" is modified in this method, since later it is used to construct the GenericDataModel. However, "data" is a local variable instead of a class variable, so how is it modified? processFile(iterator, data, timestamps, false); return new GenericDataModel(GenericDataModel.toDataMap(data, true)); -- Jia
