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基于知识图谱的软件工程学科在线学习平台

Python 1.67% CSS 1.68% JavaScript 0.73% HTML 95.92%

software-engineering-discipline-online-learning-platform-based-on-knowledge-map's Introduction

Software-engineering-discipline-online-learning-platform-based-on-knowledge-map

基于知识图谱的软件工程学科在线学习平台

项目思路

将北京邮电大学软件工程专业课程的培养方案存入图数据库,并展示给用户.

建立一个问答系统,用户可以输入一个专业相关的问题,系统在图数据库中进行查询,给用户返回查询结果

原理

图展示培养方案中课程的关系

  • 主要用到了d3js库,实现展示相应的效果

问答系统的建立

  • 首先使用HanLP将每种查询对应的问题进行分词,并在分词结果中查找每个问题分别对应词典中哪些词
  • 根据每种查询对应的问题出现的关键词,在Spark中用朴素贝叶斯算法建立一个分类模型
  • 用户每次输入一个问题之后,首先用HanLP进行分词,之后找出在词典中找出出现词的下标,组成一个向量
  • 将向量带入朴素贝叶斯模型中得到预测结果,进而进行相应的查询,返回给用户相应的结果

待完成的工作

  • 目前questions_classification.txt中只有两种问题,需要添加一些问题
  • 在添加问题的同时,需要给每种问题再detailed_questions中添加一个文件,存储该问题可能的提问方式
  • 在添加问题的时候如果需要给分词应用添加新的词典,比如需要添加一个词典用来保存所有老师的名字..

问答系统中可以回答的相关问题如下

课程的概述 课程的先修课程 课程的开课学期 课程的选修必修 课程的学分 课程的学时 课程的课程编号 课程的英文名称 课程的授课老师姓名

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