2. 搜尋的基本部分 (p101、p105)
• 查全(recall)、召回率:
絲毫不差的找出一切你所搜尋的東西的厲害程度。
Recall is how good it is at finding absolutely everything you
were searching for.
• 查準(precision)、精度:
根據與你所查找內容的相關程度,加以整理前述結果的厲害程度。
Precision is how good it is at organizing these results by how
relevant they are to your query.
12. 垂直搜尋 Vertical search
• 垂直搜尋用於僅搜尋寬廣文件世界中特定子集的搜尋引擎。
Vertical search is used by a search engine that explicitly only
searches within a particular subset of the vast world of
documents.