Data type: sparse-integer
Number of features: 20000
Number of examples and check-sums:
     	Pos_ex	Neg_ex	Tot_ex	Check_sum
Train	  150	  150	  300	2816528.00
Valid	  150	  150	  300	2820952.00
Test	 1000	 1000	 2000	19127295.00
All  	 1300	 1300	 2600	24764775.00