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dmitryikh / leaves

pure Go implementation of prediction part for GBRT (Gradient Boosting Regression Trees) models from popular frameworks
MIT License
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Unexpected objective field: 'lambdarank' #58

Closed upbit closed 5 years ago

upbit commented 5 years ago

leaves.LGEnsembleFromFile() failed when load an objective=lambdarank model (lightGBM)

Error message: unexpected objective field: 'lambdarank', model:

tree
version=v2
num_class=1
num_tree_per_iteration=1
label_index=0
max_feature_idx=24
objective=lambdarank
feature_names=t quality freshness navboost pctr video_type lctr_1_3 lctr_4_7 lctr_8_30 sctr_1_3 sctr_4_7 sctr_8_30 ctr_1_3 ctr_4_7 ctr_8_30 loglclick_1_3 logclick_1_3 logsclick_1_3 lctr_ins ctr_ins sctr_ins loglclick_ins logclick_ins logsclick_ins instant_navboost
feature_infos=[0:1.3200000524520874] [3.3299998904112726e-05:1] [0.36787900328636169:1] [0.36790001392364502:0.9999966025352478] [0:0.98189848661422729] [1:200] [0:10.87989330291748] [0:9.3969650268554688] [0:11.486390113830566] [0:4.2822332382202148] [0:3.7750816345214844] [0:2.8636219501495361] [0:8.7641057968139648] [0:7.1885638236999512] [0:10.401005744934082] [0:6.4371075630187988] [0:6.4220900535583496] [0:5.9216046333312988] [0:5.5910482406616211] [0:3.3260509967803955] [0:1.3753839731216431] [0:5.3813371658325195] [0:5.3396997451782227] [0:4.9291071891784668] [0.36790001392364502:0.9999929666519165]
tree_sizes=1308 911 993 1073 1235 1154 992 1316 1234 1151 997 1163 1234 1077 1090 1244 1237 1152 1400 1228 1246 1310 1240 1072 1327 1068 1242 1081 1312 1082 1162 1000 1330 1310 1408 1253 1165 1328 1082 1004 1172 1328 1161 1081 1151 1323 1325 1321 1410 1166 1073 1403 996 1242 991 1336 1232 1250 995 1309
upbit commented 5 years ago

resolved

leaves.LGEnsembleFromFile(model_filename, false)