我開始使用天真的數值預測。這裏是訓練數據使用機器學習的數值預測
https://gist.github.com/karimkhanp/75d6d5f9c4fbaaaaffe8258073d00a75
測試數據
https://gist.github.com/karimkhanp/0f93ecf5fe8ec5fccc8a7f360a6c3950
我寫的基本scikit學習代碼進行訓練和測試。
import pandas as pd
import pylab as pl
from sklearn import datasets
from sklearn import metrics, linear_model
from sklearn.linear_model import LogisticRegression, LinearRegression, BayesianRidge, OrthogonalMatchingPursuitCV, SGDRegressor
from datetime import datetime, date, timedelta
class NumericPrediction(object):
def __init__(self):
pass
def dataPrediction(self):
Train = pd.read_csv("data_scientist_assignment.tsv", sep='\t', parse_dates=['date'])
Train_visualize = Train
Train['timestamp'] = Train.date.values.astype(pd.np.int64)
Train_visualize['date'] = Train['timestamp']
print Train.describe()
x1=["timestamp", "hr_of_day"]
test=pd.read_csv("test.tsv", sep='\t', parse_dates=['date'])
test['timestamp'] = test.date.values.astype(pd.np.int64)
model = LinearRegression()
model.fit(Train[x1], Train["vals"])
# print(model)
# print model.score(Train[x1], Train["vals"])
print model.predict(test[x1])
Train.hist()
pl.show()
if __name__ == '__main__':
NumericPrediction().dataPrediction()
但是這裏的精度非常低。因爲方法很幼稚。任何更好的建議,以提高準確性(在算法,例子,參考,圖書館)?