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|
Size
|
Date
|
Micro-F
|
Macro-F
|
|---|
|
100,000
|
December 2012- July 2013
|
0.5591
|
0.3616
|
|
250,000
|
January 2012- July 2013
|
0.5827
|
0.4567
|
|
500,000
|
August 2010- July 2013
|
0.5941
|
0.5130
|
|
750,000
|
January 2009- July 2013
|
0.5977
|
0.5358
|
|
1,000,000
|
August 2007- July 2013
|
0.5993
|
0.5480
|
|
1,500,000
|
July 2004- July 2013
|
0.5995
|
0.5637
|
|
2,000,000
|
August 2001- July 2013
|
0.5963
|
0.5652
|
|
4,300,000
|
December 1946 - July 2013
|
0.58646
|
0.56014
|
- A fixed test set of 50k abstracts is employed for the experiment, from July 2013 to January 2014
