First, Why I choose this project?

This Competition is one of the “unlike Kaggle” Competition: This is a real-world problem.

The target of this project is to estimate an Ad’s Exposure rate (daily) from a bunch of files provided. When a company decides to post an Ad on a certain website, there are many features they need to decide

Before anything

How to convert a jupyter notebook to md file?

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$ jupyter nbconvert --to markdown input.ipynb

Introduction

Seeking for rentals in a limited time is always a painful experience. For me, because this process is so painful, sometimes even I’m seriously not happy with the property I’m renting, I will choose to live with it.

A simple comparisons between tree classifiers

A simple comparisons between Logistic regression, LDA, KNN and QDA

how to tune GradientBoosting Parameters

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GradientBoostingClassifier(
    loss='deviance',
    learning_rate=0.1,
    n_estimators=100,
    subsample=1.0,
    criterion='friedman_mse',
    min_samples_split=2,
    min_samples_leaf=1,
    min_weight_fraction_leaf=0.0,
    max_depth=3,
    min_impurity_decrease=0.0,
    min_impurity_split=None,
    init=None,
    random_state=None,
    max_features=None,
    verbose=0,
    max_leaf_nodes=None,
    warm_start=False,
    presort='auto',
    validation_fraction=0.1,
    n_iter_no_change=None,
    tol=0.0001,
)

python 3 iteration summary

一个小小的总结，summarize一下python3里面的iteration

.iteritems()

用于 series, dataframe:

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for index, data in a.iteritems():

iterate a list

用于不需要index的情况，只对items进行遍历