Something like this? And then i have to package it and use instead of
Mahout-core..job right? Thanks again
public class ItemBased implements Recommender {
//private final Recommender delegate;
private DataModel model;
public ItemBased(DataModel model) throws TasteException,
IOException {
ItemSimilarity similarity = new
PearsonCorrelationSimilarity(model);
ItemBasedRecommender recommender = new
GenericItemBasedRecommender(model, similarity);
LoadEvaluator.runLoad(recommender);
List<RecommendedItem> recommendations =
recommender.recommend(1,1);
for (RecommendedItem recommendation : recommendations){
System.out.println(recommendation);
}
}
@Override
public float estimatePreference(long userID, long itemID)
throws TasteException {
// TODO Auto-generated method stub
return 0;
}
@Override
public DataModel getDataModel() {
// TODO Auto-generated method stub
return null;
}
@Override
public List<RecommendedItem> recommend(long userID, int howMany)
throws TasteException {
// TODO Auto-generated method stub
return null;
}
@Override
public List<RecommendedItem> recommend(long userID, int howMany,
IDRescorer rescorer) throws TasteException {
// TODO Auto-generated method stub
return null;
}
@Override
public void removePreference(long userID, long itemID)
throws TasteException {
// TODO Auto-generated method stub
}
@Override
public void setPreference(long userID, long itemID, float value)
throws TasteException {
// TODO Auto-generated method stub
}
@Override
public void refresh(Collection<Refreshable> alreadyRefreshed) {
// TODO Auto-generated method stub
}
Il giorno 20/nov/2010, alle ore 12.39, Sean Owen ha scritto:
> Look at Listing 5.5. This is the kind of wrapper you need. You can skip the
> no-arg constructor actually and just write the one that takes a DataModel,
> if I recall correctly. Just delegate the rest of the methods. Inside the
> constructor, build whatever recommender you want.
>
> On Sat, Nov 20, 2010 at 11:30 AM, Stefano Bellasio <
> [email protected]> wrote:
>
>> So for example i need to follow the same steps of Wikipedia example in
>> Mahout in Action? then package it and use with this? Please i need some info
>> just about the correct steps :) Thanks
>>
>>
