MovieLens 10M Details

This page contains specific details about the MovieLens 10M dataset. For more general information, please have a look at the MovieLens page in this wiki.

Academic Papers Using the MovieLens 10M Dataset

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• M. D. Ekstrand, M. Ludwig, J. A. Konstan: Rethinking the Recommender Research Ecosystem: Openness, Reproducibility, and LensKit, RecSys 2011

Detailed Statistics

scripts/statistics.pl data/ml-10m/ratings.dat --separator=::

10000054 unique events (user-item combinations) out of 10000054, 69878 users, 10677 items
sparsity: 98.6597 percent
first event: 1995-01-09 11:46:49, last event: 2009-01-05 05:02:16
Event levels and frequencies:
  0.5:	94988	(0.0095)
  1:	384180	(0.0384)
  1.5:	118278	(0.0118)
  2:	790306	(0.0790)
  2.5:	370178	(0.0370)
  3:	2356676	(0.2357)
  3.5:	879764	(0.0880)
  4:	2875850	(0.2876)
  4.5:	585022	(0.0585)
  5:	1544812	(0.1545)
Event frequencies by month:
  1995-01:	3
  1996-01:	21
  1996-02:	336
  1996-03:	6573
  1996-04:	34944
  1996-05:	123268
  1996-06:	164893
  1996-07:	142511
  1996-08:	142802
  1996-09:	97648
  1996-10:	125047
  1996-11:	118539
  1996-12:	91036
  1997-01:	71996
  1997-02:	43326
  1997-03:	66997
  1997-04:	55590
  1997-05:	62158
  1997-06:	53817
  1997-07:	38272
  1997-09:	12598
  1997-10:	14335
  1997-11:	26691
  1997-12:	14167
  1998-01:	17629
  1998-02:	9516
  1998-03:	11794
  1998-04:	12269
  1998-05:	6399
  1998-06:	9426
  1998-07:	54059
  1998-08:	27346
  1998-09:	12518
  1998-10:	8976
  1998-11:	10922
  1998-12:	21238
  1999-01:	16887
  1999-02:	9320
  1999-03:	5847
  1999-04:	9904
  1999-05:	9331
  1999-06:	7455
  1999-07:	7815
  1999-08:	7341
  1999-09:	21749
  1999-10:	238722
  1999-11:	160126
  1999-12:	294296
  2000-01:	108735
  2000-02:	80707
  2000-03:	97415
  2000-04:	115160
  2000-05:	72846
  2000-06:	59474
  2000-07:	104019
  2000-08:	158266
  2000-09:	52412
  2000-10:	42483
  2000-11:	271056
  2000-12:	109050
  2001-01:	89118
  2001-02:	54462
  2001-03:	46526
  2001-04:	36465
  2001-05:	34353
  2001-06:	103684
  2001-07:	100320
  2001-08:	75335
  2001-09:	62324
  2001-10:	46986
  2001-11:	56650
  2001-12:	52918
  2002-01:	66641
  2002-02:	51935
  2002-03:	41791
  2002-04:	60287
  2002-05:	47502
  2002-06:	39884
  2002-07:	43287
  2002-08:	49248
  2002-09:	39330
  2002-10:	40785
  2002-11:	47958
  2002-12:	54761
  2003-01:	75575
  2003-02:	58604
  2003-03:	64384
  2003-04:	50594
  2003-05:	60502
  2003-06:	59224
  2003-07:	62651
  2003-08:	50013
  2003-09:	51873
  2003-10:	52067
  2003-11:	53315
  2003-12:	49892
  2004-01:	63463
  2004-02:	88715
  2004-03:	71673
  2004-04:	54242
  2004-05:	65536
  2004-06:	59336
  2004-07:	60754
  2004-08:	68139
  2004-09:	63474
  2004-10:	57633
  2004-11:	61308
  2004-12:	53895
  2005-01:	90284
  2005-02:	94802
  2005-03:	219616
  2005-04:	144686
  2005-05:	103743
  2005-06:	98831
  2005-07:	80772
  2005-08:	68867
  2005-09:	70337
  2005-10:	65305
  2005-11:	73040
  2005-12:	67000
  2006-01:	77242
  2006-02:	64810
  2006-03:	70733
  2006-04:	67477
  2006-05:	52992
  2006-06:	57434
  2006-07:	71226
  2006-08:	57118
  2006-09:	52284
  2006-10:	66201
  2006-11:	57480
  2006-12:	70736
  2007-01:	73707
  2007-02:	69459
  2007-03:	68823
  2007-04:	56765
  2007-05:	55597
  2007-06:	65101
  2007-07:	60738
  2007-08:	41778
  2007-09:	41350
  2007-10:	53365
  2007-11:	54449
  2007-12:	58193
  2008-01:	70424
  2008-02:	60586
  2008-03:	55013
  2008-04:	47101
  2008-05:	45379
  2008-06:	52897
  2008-07:	65479
  2008-08:	59025
  2008-09:	52484
  2008-10:	109789
  2008-11:	92072
  2008-12:	63368
  2009-01:	14608