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smp2018's Introduction

smp2018用户画像技术评测基础方案

用户画像技术评测给定一个由若干媒体内容文档构成的数据集,参赛队伍采用适当的算法,对每篇文档的作者进行身份识别,区分出该文档属于人类写作、机器写作、机器翻译和机器自动摘要中的哪一类。简单的来说就是文本分类任务。

原始训练集用于模型的学习,共146,421篇,其中自动摘要31034篇,机器翻译36206,人类作者 48018,机器作者31163。每一种类型中各取5000篇作为测试集,剩下的作为训练集。

分别使用词汇级别CNN和RNN+CNN的模型进行文本分类。

结果

自构建的测试集上,使用RNN+CNN的模型,达到了98%的准确率。使用全部数据训练的RNN+CNN模型,在第一轮评测中的结果如图所示:

环境

  • Python (>=3.6.1)
  • TensorFlow (=1.6.0)
  • jieba

文件结构

  • data: 存储中间生成的数据
  • model: 存储训练完成的模型
  • origin_data: 存储原始txt文件
  • result: 存储模型预测的结果

代码结构

  • preprocess.py: 数据预处理,处理原始json格式的文件
  • init.py: 数据初始化,划分训练集测试集
  • cnnmodel.py: CNN模型
  • rnn_cnn_model.py: RNN+CNN模型
  • test_pred.py: 计算模型预测结果的准确率

运行方式

python preprocess.py#数据预处理
python init.py#数据初始化
python cnnmodel.py#使用CNN模型训练数据,查看结果
python rnn_cnn_model.py#使用RNN模型训练数据,查看结果

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Contributors

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