iSharkFly-Docs
/
opensearch-docs-cn
mirror of https://github.com/iSharkFly-Docs/opensearch-docs-cn
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Fix description of cosinesimil distance function (#2214) 

Signed-off-by: Mauricio Scheffer <mauricioscheffer@gmail.com>

Signed-off-by: Mauricio Scheffer <mauricioscheffer@gmail.com>
This commit is contained in:
Mauricio Scheffer 2022-12-16 19:22:32 +00:00 committed by GitHub
parent a41457242e
commit 2320a4b281
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
_search-plugins/knn/approximate-knn.md
View File

@ -305,7 +305,7 @@ A space corresponds to the function used to measure the distance between two poi
<td>cosinesimil</td>
<td>\[ d(\mathbf{x}, \mathbf{y}) = 1 - cos { \theta } = 1 - {\mathbf{x} &middot; \mathbf{y} \over \|\mathbf{x}\| &middot; \|\mathbf{y}\|}\]\[ = 1 -
{\sum_{i=1}^n x_i y_i \over \sqrt{\sum_{i=1}^n x_i^2} &middot; \sqrt{\sum_{i=1}^n y_i^2}}\]
where \(\|\mathbf{x}\|\) and \(\|\mathbf{y}\|\) represent normalized vectors.</td>
where \(\|\mathbf{x}\|\) and \(\|\mathbf{y}\|\) represent the norms of vectors x and y respectively.</td>
<td><b>nmslib</b> and <b>faiss:</b>\[ score = {1 \over 1 + d } \]<br><b>Lucene:</b>\[ score = {1 + d \over 2}\]</td>
</tr>
<tr>