es.upm.etsisi.cf4j.data

Class BenchmarkDataModels

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 and Description
BenchmarkDataModels()

Method Summary

Modifier and Type	Method and 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.

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.