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kagglerecords's Introduction

KaggleRecords

Record my kaggle experiences.

问题描述:

1、给出某地区房子的一些特征以及价格。 2、特征中包括numerical特征和category特征。 3、所需要预测的量为连续性特征(numerical),即是一个回归问题。

采用模型:

1、最基本的线性模型。 2、Lasso(L1正则化) 2、Ridge(L2正则化)

模型融合策略:

对三者结果取均值。

采用模型:

1、基本的线性模型 2、Lasso+CV寻找最优参数 3、Ridge+CV寻找最优参数

模型融合策略:

1、基本线性模型严重过拟合,抛弃。 2、对剩下的两个采用取均值策略。

采用模型:

1、xgboost的回归版本 2、randomforest的回归版本 3、adaboost的回归版本 4、bagging的回归版本

模型融合策略:

1、对四者取均值

问题描述:

1、给出部分泰坦尼克号上的乘客的特征与获救情况。 2、特征中有category和numerical值,且总共只有7个特征。 3、预测剩下的乘客哪些存活,哪些死亡,是一个分类问题。

采用模型:

logistics回归+cv

采用模型:

1、logistic+cv 2、svm+cv 3、randomforest+cv

模型融合:

简单的voting。

采用模型:

简单的ANN

  1. 激活函数:softmax
  2. 损失函数:交叉熵
  3. 优化方式:梯度下降
  4. 输入层:784个节点,对应每个像素点。
  5. 隐层:只有一个隐层,10个节点,同时作为输出层。
  6. 输出层:就是隐层。

采用模型:

3层CNN。( tensorflow)

采用模型:

 多层CNN。(keras)  

kagglerecords's People

Contributors

wuzifan avatar zifan-wu avatar

Watchers

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