精选优质文档-倾情为你奉上信息组织与检索作业答案第一章 布尔检索习题1-2 考虑如下几篇文档:文档1 breakthrough drug for schizophrenia 文档2 new schizophrenia drug 文档3 new approach for treatment of schizophrenia 文档4 new hopes for schizophrenia patients a. 画出文档集对应的词项文档矩阵;b. 画出该文档集的倒排索引(参考图 1-3中的例子)。Term-Documentmatrix:1234approach0010breakthrough1000drug1100for1011hopes0001new0111of0010patients0001schizophrenia1111treatment0010