Wojciech Rybicki wrwr

wrwr / xgboost_randomized_search.py

Last active May 26, 2024 20:15

XGBoost hyperparameter search using scikit-learn RandomizedSearchCV

	import time

	import xgboost as xgb
	from sklearn.model_selection import RandomizedSearchCV

	x_train, y_train, x_valid, y_valid, x_test, y_test = # load datasets

	clf = xgb.XGBClassifier()

	param_grid = {

wrwr / load_save_npz_sparse_dataset.py

Created June 5, 2017 05:37

Load and save csr_matrix dataset as numpy npz file

	import numpy as np
	from scipy.sparse import csr_matrix


	def save_dataset(filename, x, y):
	np.savez(filename, data=x.data, indices=x.indices,
	indptr=x.indptr, shape=x.shape, target=y)


	def load_dataset(filename):