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clarify the term all documents

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Jidong Xiao
2024-03-14 21:58:44 -04:00
parent 724859a190
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old_hws/07_search_engine/README.md
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@@ -1,3 +1,5 @@
**Note:** Sample output files will be added later; submitty autograder will not open until Friday afternoon.
<!-- Clarification <!-- Clarification
We made a clarification on the discussion forum. In case you didn't pay attenton there, we are adding the clarification here. We made a clarification on the discussion forum. In case you didn't pay attenton there, we are adding the clarification here.
@@ -90,7 +92,7 @@ A search query may contain one keyword or multiple keywords. Given a set of keyw
1. Calculate a density score for each keyword within the document. 1. Calculate a density score for each keyword within the document.
2. Accumulate these individual density scores into a combined score. <!--represent the overall keyword density of the document for the given set of keywords.--> 2. Accumulate these individual density scores into a combined score. <!--represent the overall keyword density of the document for the given set of keywords.-->
For each keyword, the keyword's density score is a measure of how the keyword's frequency in a document compares to its occurrence in all documents, and we can use the following formula to calculate the density score of one keyword. For each keyword, the keyword's density score is a measure of how the keyword's frequency in a document compares to its occurrence in all documents, and we can use the following formula to calculate the density score of one keyword. (**Note:** here the term "all documents" literally means all documents, not just the documents which contain the query.)
```console ```console
Keyword Density Score = (Number of Times Keyword Appears) / (Total Content Length of this One Document * Keyword Density Across All Documents) Keyword Density Score = (Number of Times Keyword Appears) / (Total Content Length of this One Document * Keyword Density Across All Documents)