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Question

Blind query expansion (also known as automatic relevance feedback) is enabled by adding WITH QUERY EXPANSION following the search phrase. It works by performing the search twice, where the search phrase for the second search is the original search phrase concatenated with the few most highly relevant documents from the first search.

有什麼辦法，我看到了「上少數幾個最高度相關的」在第二次搜索中使用的術語？

Answer 1

你有沒有找到答案？我一直在尋找這個作業，並發現了一個似乎在MySQL論壇上做的竅門。

http://forums.mysql.com/read.php?6,427574,433782#msg-433782