{"learner":{"attributes":{},"gradient_booster":{"model":{"gbtree_model_param":{"num_trees":"5","size_leaf_vector":"0"},"tree_info":[0,0,0,0,0],"trees":[{"base_weights":[-9.708353E0,-1.3338E1,-5.4362935E-1,-8.665846E0,-1.7439627E1,3.8809277E-2,-1.3331506E0,3.0172497E-1,-5.0642675E-1],"categories":[2,0,0,1],"categories_nodes":[0,1,2,5],"categories_segments":[0,1,2,3],"categories_sizes":[1,1,1,1],"default_left":[true,true,false,false,false,true,false,false,false],"id":0,"left_children":[1,3,5,-1,-1,7,-1,-1,-1],"loss_changes":[6.9130835E2,1.3632251E2,3.270672E0,0E0,0E0,8.6955714E-1,0E0,0E0,0E0],"parents":[2147483647,0,0,1,1,2,2,5,5],"right_children":[2,4,6,-1,-1,8,-1,-1,-1],"split_conditions":[NaN,NaN,NaN,-8.665846E0,-1.7439627E1,NaN,-1.3331506E0,3.0172497E-1,-5.0642675E-1],"split_indices":[0,0,1,0,0,1,0,0,0],"split_type":[1,1,1,0,0,1,0,0,0],"sum_hessian":[2E1,1.4E1,6E0,8E0,6E0,4E0,2E0,3E0,1E0],"tree_param":{"num_deleted":"0","num_feature":"2","num_nodes":"9","size_leaf_vector":"0"}},{"base_weights":[-1.3163496E0,-1.7164515E0,3.07267E-1,-2.512893E0,-2.1969318E-1,5.2182674E-1,-2.75486E-1,-2.8483336E0,-6.689399E-1,-3.763578E-1,3.6014727E-1],"categories":[4,2,0,3,3],"categories_nodes":[0,1,2,3,4],"categories_segments":[0,1,2,3,4],"categories_sizes":[1,1,1,1,1],"default_left":[true,true,true,true,true,false,false,false,false,false,false],"id":1,"left_children":[1,3,5,7,9,-1,-1,-1,-1,-1,-1],"loss_changes":[1.4169262E1,1.9713299E1,7.6893264E-1,4.8985443E0,7.714275E-1,0E0,0E0,0E0,0E0,0E0,0E0],"parents":[2147483647,0,0,1,1,2,2,3,3,4,4],"right_children":[2,4,6,8,10,-1,-1,-1,-1,-1,-1],"split_conditions":[NaN,NaN,NaN,NaN,NaN,5.2182674E-1,-2.75486E-1,-2.8483336E0,-6.689399E-1,-3.763578E-1,3.6014727E-1],"split_indices":[1,0,0,1,1,0,0,0,0,0,0],"split_type":[1,1,1,1,1,0,0,0,0,0,0],"sum_hessian":[2E1,1.6E1,4E0,1E1,6E0,3E0,1E0,8E0,2E0,5E0,1E0],"tree_param":{"num_deleted":"0","num_feature":"2","num_nodes":"11","size_leaf_vector":"0"}},{"base_weights":[-1.5653084E-1,1.2182241E-1,-7.306406E-1,3.1346467E-1,-3.2415506E-1,-3.266764E-1,-1.1603675E0,1.1284485E-1,4.119839E-1,-4.5859626E-1,1.0680485E-1],"categories":[0,0,0,1,2],"categories_nodes":[0,1,2,3,4],"categories_segments":[0,1,2,3,4],"categories_sizes":[1,1,1,1,1],"default_left":[false,false,false,true,true,false,false,false,false,false,false],"id":2,"left_children":[1,3,5,7,9,-1,-1,-1,-1,-1,-1],"loss_changes":[3.4449203E0,1.3836331E0,8.360951E-1,1.7092371E-1,3.386742E-1,0E0,0E0,0E0,0E0,0E0,0E0],"parents":[2147483647,0,0,1,1,2,2,3,3,4,4],"right_children":[2,4,6,8,10,-1,-1,-1,-1,-1,-1],"split_conditions":[NaN,NaN,NaN,NaN,NaN,-3.266764E-1,-1.1603675E0,1.1284485E-1,4.119839E-1,-4.5859626E-1,1.0680485E-1],"split_indices":[1,0,0,0,1,0,0,0,0,0,0],"split_type":[1,1,1,1,1,0,0,0,0,0,0],"sum_hessian":[2E1,1.4E1,6E0,1E1,4E0,4E0,2E0,4E0,6E0,3E0,1E0],"tree_param":{"num_deleted":"0","num_feature":"2","num_nodes":"11","size_leaf_vector":"0"}},{"base_weights":[-6.257144E-2,-1.594033E-1,2.7917114E-1,-2.1439712E-1,1.546129E-2,5.3815536E-2,5.9029675E-1,-2.4666376E-1,-2.4620375E-2,8.005506E-2,-1.2145689E-1],"categories":[2,2,1,1,1],"categories_nodes":[0,1,2,3,4],"categories_segments":[0,1,2,3,4],"categories_sizes":[1,1,1,1,1],"default_left":[true,true,false,true,true,false,false,false,false,false,false],"id":3,"left_children":[1,3,5,7,9,-1,-1,-1,-1,-1,-1],"loss_changes":[7.394237E-1,1.6679484E-1,3.188024E-1,7.3531985E-2,5.394355E-2,0E0,0E0,0E0,0E0,0E0,0E0],"parents":[2147483647,0,0,1,1,2,2,3,3,4,4],"right_children":[2,4,6,8,10,-1,-1,-1,-1,-1,-1],"split_conditions":[NaN,NaN,NaN,NaN,NaN,5.3815536E-2,5.9029675E-1,-2.4666376E-1,-2.4620375E-2,8.005506E-2,-1.2145689E-1],"split_indices":[1,0,0,1,1,0,0,0,0,0,0],"split_type":[1,1,1,1,1,0,0,0,0,0,0],"sum_hessian":[2E1,1.6E1,4E0,1.2E1,4E0,3E0,1E0,1E1,2E0,3E0,1E0],"tree_param":{"num_deleted":"0","num_feature":"2","num_nodes":"11","size_leaf_vector":"0"}},{"base_weights":[1.5782246E-2,6.612824E-2,-9.435662E-2,9.4833456E-2,-3.6519468E-2,1.308322E-3,-2.22346E-1,1.2219477E-1,9.56215E-3,-8.664409E-2,5.6927204E-2,-2.906406E-2,3.1244596E-2],"categories":[0,1,0,3,1,1],"categories_nodes":[0,1,2,3,4,5],"categories_segments":[0,1,2,3,4,5],"categories_sizes":[1,1,1,1,1,1],"default_left":[true,true,true,true,true,true,false,false,false,false,false,false,false],"id":4,"left_children":[1,3,5,7,9,11,-1,-1,-1,-1,-1,-1,-1],"loss_changes":[1.22685686E-1,4.7661126E-2,8.599956E-2,2.682916E-2,2.3668323E-2,5.4542744E-3,0E0,0E0,0E0,0E0,0E0,0E0,0E0],"parents":[2147483647,0,0,1,1,2,2,3,3,4,4,5,5],"right_children":[2,4,6,8,10,12,-1,-1,-1,-1,-1,-1,-1],"split_conditions":[NaN,NaN,NaN,NaN,NaN,NaN,-2.22346E-1,1.2219477E-1,9.56215E-3,-8.664409E-2,5.6927204E-2,-2.906406E-2,3.1244596E-2],"split_indices":[1,1,0,1,0,0,0,0,0,0,0,0,0],"split_type":[1,1,1,1,1,1,0,0,0,0,0,0,0],"sum_hessian":[2E1,1.4E1,6E0,1.1E1,3E0,4E0,2E0,8E0,3E0,2E0,1E0,2E0,2E0],"tree_param":{"num_deleted":"0","num_feature":"2","num_nodes":"13","size_leaf_vector":"0"}}]},"name":"gbtree"},"learner_model_param":{"base_score":"0E0","num_class":"0","num_feature":"2"},"objective":{"name":"reg:squarederror","reg_loss_param":{"scale_pos_weight":"1"}}},"version":[1,4,0]}