询问第二次作业返回结果的问题

[liyouh...@gmail.com]

求问支持priximity查询的布尔检索系统最终返回结果只是文档还是 文档加匹配位置？

课件上说支持priximity查询的话返回的除了文档还需要精确的位置匹配

那系统最终的返回的结果也是文档及其相应的匹配位置？

但是查询语句可能只有部分子查询是priximity的， 而其它部分可能还是

一般的布尔子查询， 那返回结果岂不是很多？感觉除了文档还要精确匹配的位置似乎没意义。。。

[Hongfei Yan]

The algorithm finds places where the two terms appear within k words of each other

and returns a list of triples giving docID and the term position in p1 and p2.

This is important for dynamic summaries etc.

就是搜索引擎返回结果的动态摘要生成，需要proximity返回的信息。

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