diff --git a/function.py b/function.py index 3b9e1c5..0e76974 100644 --- a/function.py +++ b/function.py @@ -1,7 +1,6 @@ import numpy as np from sklearn.ensemble import RandomForestClassifier from sklearn.preprocessing import PolynomialFeatures, StandardScaler -from sklearn.model_selection import GridSearchCV id = "202210423104" name = "张钦诚" @@ -26,26 +25,17 @@ def load_data(filepath): def preprocess_data(X): scaler = StandardScaler() X_standardized = scaler.fit_transform(X) - poly = PolynomialFeatures(degree=3, include_bias=False) # 尝试更高的次数 + poly = PolynomialFeatures(degree=2, include_bias=False) X_poly = poly.fit_transform(X_standardized) return X_poly def train_logreg(X, y): X_processed = preprocess_data(X) # 预处理训练数据 + model = RandomForestClassifier(n_estimators=113, max_depth=10, random_state=42) + model.fit(X_processed, y) + return model # 返回训练好的模型 - # 使用网格搜索调参 - param_grid = { - 'n_estimators': [100, 200, 300], - 'max_depth': [5, 10, 15], - 'class_weight': ['balanced', None] # 处理不平衡数据 - } - - model = RandomForestClassifier(random_state=42) - grid_search = GridSearchCV(model, param_grid, cv=5) - grid_search.fit(X_processed, y) - return grid_search.best_estimator_ # 返回最佳模型 - -def predict_logreg(model, X): +def predict_logreg(X, model): # 确保输入数据是一个 numpy 数组 if len(X.shape) == 1: X = X.reshape(1, -1) # 保持输入数据的形状为 (1, n),符合模型的输入要求