User based center, and using the negative examples around the center:
testsize: 1000
results:
this is the model with user negative examples dataset NYC, this is test for new lightfm,max_sampled 10,and 1000 checkins,and radius as 5 and th_center 0 unique user&venue checkin combination in test 195 unique user&venue checkin combination in test 778 max num in matrix 3 max num in train 4 I am beginning to get negtive examples object preprocess created Time used for negative examples: 70.58932300000001 I am beginning to model,this is the new model model has been fitted this is the model that consider the checkin times Time used: 0.13614900000000318 Train_auc is 0.617768 test auc is 0.306076 train prek 0.012468 test prek 0.000000 I am beginning to model,this is the original model model has been fitted this is the model that consider the checkin times Time used: 0.10517300000000773 Train_auc is 0.940273 test auc is 0.180400 train prek 0.172010 test prek 0.001299
testsize:10000
results:
this is test for new lightfm of nyc, 10000 checkins, radius 10, max_Sampled:10, th_center: 0.200000 unique user&venue checkin combination in test 1414 unique user&venue checkin combination in test 5654 max num in matrix 9 max num in train 14 I am beginning to get negtive examples object preprocess created Time used for negative examples: 2975.53179 I am beginning to model,this is the new model model has been fitted this is the model that consider the checkin times Time used: 0.33353200000010474 Train_auc is 0.551031 Test_aus is 0.473606 I am beginning to model,this is the original model model has been fitted this is the model that consider the checkin times Time used: 0.40079700000023877 Train_auc is 0.999947 Test_aus is 0.322601 train prek is 0.546246 test prek is 0.000846 /home/s2013258/.local/lib/python3.5/site-packages/sklearn/cross_validation.py:44: DeprecationWarning: This module was deprecated in version 0.18 in favor of the model_selection module into which all the refactored classes and functions are moved. Also note that the interface of the new CV iterators are different from that of this module. This module will be removed in 0.20. "This module will be removed in 0.20.", DeprecationWarning)