| clear query|facets|time |
Search criteria: .
Results from 1 to 10 from
20 (0.456s).
|
|
|
Loading phrases to help you
refine your search...
|
|
Training Data and Precision/Recall evaluation - Mahout - [mail # user]
|
|
...I want to use the GenericRecommenderIRStatsEvaluator to get precision/recall scores for my recommenders. I know with the other recommender evaluators, you can specify the split of trai...
|
|
|
Author: Daniel Quach,
2012-05-30, 09:16
|
|
|
Any other names for generic user/item based recommenders? - Mahout - [mail # user]
|
|
...I'm writing a short paper about recommender systems and I have been using mahout's generic item based recommender and generic user based recommender classes with the pearson correlation coef...
|
|
|
Author: Daniel Quach,
2012-05-25, 05:06
|
|
|
Re: how to implement item-based recommender on movie genre data? - Mahout - [mail # user]
|
|
...Well, actually, I wanted to represent each movie with a vector [1, 0, 0, 1, 0] Where each column represents an explicit genre, a 1 indicating that the movie has that genre while ...
|
|
|
Author: Daniel Quach,
2012-05-10, 06:29
|
|
|
Theory question about Pearson Correlation and user based recommender - Mahout - [mail # user]
|
|
...I am running average absolute difference evaluations of a generic user based recommender that uses a threshold based neighborhood and pearson correlation to determine similarity. I eva...
|
|
|
Author: Daniel Quach,
2012-05-09, 16:13
|
|
|
how to implement item-based recommender on movie genre data? - Mahout - [mail # user]
|
|
...Suppose that I want to give each movie a profile based on the genres each contains. For naive and simplistic purposes, let's pretend that each movie has a vector where each column is a...
|
|
|
Author: Daniel Quach,
2012-05-08, 07:53
|
|
|
Re: How does SVDRecommender work in mahout? - Mahout - [mail # user]
|
|
...I ran the factorizer on grouplens's 1 million rating movie dataset. I ran it for 5 iterations and chose number of features to be 10. I then constructed an SVDRecommender with the factorizati...
|
|
|
Author: Daniel Quach,
2012-05-02, 04:50
|
|
|
Re: How does SVDRecommender work in mahout? - Mahout - [mail # user]
|
|
...ah sorry, I meant in the context of the SVDRecommender. Your earlier email mentioned that the DataModel does NOT do any subtraction, nor add back in the end, ensuring the matrix remain...
|
|
|
Author: Daniel Quach,
2012-04-29, 21:45
|
|
|
Re: How does SVDRecommender work in mahout? - Mahout - [mail # user]
|
|
...Just wondering, what does mahout do for user/item pairs that do not have a rating? Does it fill it in with some average value? fill with zeros? something else? On Apr 25, 2012, at 4:26...
|
|
|
Author: Daniel Quach,
2012-04-29, 21:24
|
|
|
Re: How does SVDRecommender work in mahout? - Mahout - [mail # user]
|
|
...I tried it again with 30 features and 3 iterations on the same data set, it's still running for 10+ minutes just to factorize for the SVDRecommender and has yet to complete. Perhaps it is my...
|
|
|
Author: Daniel Quach,
2012-04-25, 20:28
|
|
|
Re: How does SVDRecommender work in mahout? - Mahout - [mail # user]
|
|
...Regarding the factorization (I am using ALSWRFactorizer), is there a limit to how large a data set that can be factorized? I am trying to apply it on the 100K rating data set from grou...
|
|
|
Author: Daniel Quach,
2012-04-25, 19:17
|
|
|
|
