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thumb|Thumbnail images being used to show a sample of image files within a folder, on a computer operating system. A thumbnail is a reduced-size version of a picture or video, used to help in recognizing and organizing them, serving the same role for images as a normal text index does for words. In the age of digital images, visual search engines and image-organizing programs normally use thumbnails, as do most modern operating systems or desktop environments, such as Microsoft Windows, macOS, KDE (Linux) and GNOME (Linux). On web pages, they also avoid the need to download larger files unnece
thumb|Thumbnail images being used to show a sample of image files within a folder, on a computer operating system. A thumbnail is a reduced-size version of a picture or video, used to help in recognizing and organizing them, serving the same role for images as a normal text index does for words. In the age of digital images, visual search engines and image-organizing programs normally use thumbnails, as do most modern operating systems or desktop environments, such as Microsoft Windows, macOS, KDE (Linux) and GNOME (Linux). On web pages, they also avoid the need to download larger files unnecessarily.
==Implementation== Thumbnails are ideally implemented on web pages as separate, smaller copies of the original image, in part because one purpose of a thumbnail image on a web page is to reduce bandwidth and download time.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).