java.lang.Object
- es.upm.etsisi.cf4j.data.BenchmarkDataModels

```
public class BenchmarkDataModels
extends Object
```
This class allows final users to work with benchmark DataModel instances. These instances has been split into train and test subsets.

Constructor Summary

Constructors
Constructor Description

BenchmarkDataModels()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static DataModel`	`BookCrossing()`	Loads a DataModel instance of BookCrossing dataset.
`static DataModel`	`FilmTrust()`	Loads a DataModel instance of FilmTrust dataset.
`static DataModel`	`Jester()`	Loads a DataModel instance of Jester (Dataset 3) dataset.
`static DataModel`	`LibimSeTi()`	Loads a DataModel instance of LibimSeTi dataset.
`static DataModel`	`MovieLens100K()`	Loads a DataModel instance of MovieLens 100K dataset.
`static DataModel`	`MovieLens10M()`	Loads a DataModel instance of MovieLens 1M dataset.
`static DataModel`	`MovieLens1M()`	Loads a DataModel instance of MovieLens 1M dataset.
`static DataModel`	`MyAnimeList()`	Loads a DataModel instance of MyAnimeList dataset.
`static DataModel`	`NetflixPrize()`	Loads a DataModel instance of Netflix Prize dataset.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - BenchmarkDataModels
```
public BenchmarkDataModels()
```
- Method Detail
  - MovieLens100K
```
public static DataModel MovieLens100K()
                               throws IOException
```
    Loads a DataModel instance of MovieLens 100K dataset. The DataModel contains:
    
    Number of users: 943
    Number of test users: 280
    Number of items: 1,682
    Number of test items: 448
    Number of ratings: 92,026
    Number of test ratings: 7,974
    Min rating: 1.0
    Max rating: 5.0
    Visit https://grouplens.org/datasets/movielens/ for more information.
    Returns:
    
    A DataModel instance with MovieLens 100K dataset.
    
    Throws:
    
    IOException - When the DataModel can not be loaded.
  - MovieLens1M
```
public static DataModel MovieLens1M()
                             throws IOException
```
    Loads a DataModel instance of MovieLens 1M dataset. The DataModel contains:
    
    Number of users: 6,040
    Number of test users: 1,758
    Number of items: 3,706
    Number of test items: 1,032
    Number of ratings: 911,031
    Number of test ratings: 89,178
    Min rating: 1.0
    Max rating: 5.0
    Visit https://grouplens.org/datasets/movielens/ for more information.
    Returns:
    
    A DataModel instance with MovieLens 1M dataset.
    
    Throws:
    
    IOException - When the DataModel can not be loaded.
  - MovieLens10M
```
public static DataModel MovieLens10M()
                              throws IOException
```
    Loads a DataModel instance of MovieLens 1M dataset. The DataModel contains:
    
    Number of users: 69,878
    Number of test users: 20,851
    Number of items: 10,677
    Number of test items: 3,117
    Number of ratings: 9,104,681
    Number of test ratings: 895,373
    Min rating: 0.5
    Max rating: 5.0
    Visit https://grouplens.org/datasets/movielens/ for more information.
    Returns:
    
    A DataModel instance with MovieLens 1M dataset.
    
    Throws:
    
    IOException - When the DataModel can not be loaded.
  - FilmTrust
```
public static DataModel FilmTrust()
                           throws IOException
```
    Loads a DataModel instance of FilmTrust dataset. The DataModel contains:
    
    Number of users: 1,508
    Number of test users: 420
    Number of items: 2,071
    Number of test items: 325
    Number of ratings: 32,675
    Number of test ratings: 2,819
    Min rating: 0.5
    Max rating: 4.0
    Returns:
    
    A DataModel instance with FilmTrust dataset.
    
    Throws:
    
    IOException - When the DataModel can not be loaded.
  - BookCrossing
```
public static DataModel BookCrossing()
                              throws IOException
```
    Loads a DataModel instance of BookCrossing dataset. Only explicit ratings has been included. The DataModel contains:
    
    Number of users: 77,805
    Number of test users: 11,426
    Number of items: 185,973
    Number of test items: 25,697
    Number of ratings: 390,351
    Number of test ratings: 43,320
    Min rating: 1.0
    Max rating: 10.0
    Visit http://www2.informatik.uni-freiburg.de/~cziegler/BX/ for more information.
    Returns:
    
    A DataModel instance with BookCroosing dataset.
    
    Throws:
    
    IOException - When the DataModel can not be loaded.
  - LibimSeTi
```
public static DataModel LibimSeTi()
                           throws IOException
```
    Loads a DataModel instance of LibimSeTi dataset. The DataModel contains:
    
    Number of users: 135,359
    Number of test users: 40,940
    Number of items: 168,791
    Number of test items: 40,532
    Number of ratings: 15,846,347
    Number of test ratings: 1,512,999
    Min rating: 1.0
    Max rating: 10.0
    Visit http://www.occamslab.com/petricek/data/ for more information.
    Returns:
    
    A DataModel instance with LibimSeTi dataset.
    
    Throws:
    
    IOException - When the DataModel can not be loaded.
  - MyAnimeList
```
public static DataModel MyAnimeList()
                             throws IOException
```
    Loads a DataModel instance of MyAnimeList dataset. Only explicit ratings has been included. The DataModel contains:
    
    Number of users: 69,600
    Number of test users: 19,179
    Number of items: 9,927
    Number of test items: 2,692
    Number of ratings: 5,788,207
    Number of test ratings: 549,027
    Min rating: 1.0
    Max rating: 10.0
    Visit https://www.kaggle.com/CooperUnion/anime-recommendations-database/data for more information.
    Returns:
    
    A DataModel instance with LibimSeTi dataset.
    
    Throws:
    
    IOException - When the DataModel can not be loaded.
  - Jester
```
public static DataModel Jester()
                        throws IOException
```
    Loads a DataModel instance of Jester (Dataset 3) dataset. The DataModel contains:
    
    Number of users: 54,905
    Number of test users: 16,465
    Number of items: 140
    Number of test items: 37
    Number of ratings: 1,662,713
    Number of test ratings: 179,657
    Min rating: -10.0
    Max rating: 10.0
    Visit http://eigentaste.berkeley.edu/dataset/ for more information.
    Returns:
    
    A DataModel instance with Jester dataset.
    
    Throws:
    
    IOException - When the DataModel can not be loaded.
  - NetflixPrize
```
public static DataModel NetflixPrize()
                              throws IOException
```
    Loads a DataModel instance of Netflix Prize dataset. The DataModel contains:
    
    Number of users: 480,189
    Number of test users: 23,012
    Number of items: 17,770
    Number of test items: 1,750
    Number of ratings: 9,9945,049
    Number of test ratings: 535,458
    Min rating: 1.0
    Max rating: 5.0
    Visit https://www.kaggle.com/netflix-inc/netflix-prize-data for more information.
    Returns:
    
    A DataModel instance with Netflix Prize dataset.
    
    Throws:
    
    IOException - When the DataModel can not be loaded.

Class BenchmarkDataModels

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

BenchmarkDataModels

Method Detail

MovieLens100K

MovieLens1M

MovieLens10M

FilmTrust

BookCrossing

LibimSeTi

MyAnimeList

Jester

NetflixPrize