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A visual search engine is a search engine designed to visually display search results or to search for information in the World Wide Web through the input of an image. Visual search engines are a relatively new technology used to find desired materials in a visual form. Allan Paivio’s dual coding theory and Howard Gardner’s theory of multiple intelligences have indicated the importance of using visuals in teaching and learning. Visual search engines are highly related to information visualization along with information technologies and competencies in the 21st-century workplace, so it is necessary to understand visual search engines and their applications in educational technology. This entry presents an overview of search engines, considers the function and evaluation of visual search engines, and provides four examples ...

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