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A smart tag is the selection of special content that can be used for hyperlinking or adding to various utilities in Microsoft Outlook or other software programs. By identifying smart tags, users can save time by making various words and phrases into proper nouns that can function as data objects in a Microsoft interface.
One example of using smart tags in Microsoft Word is the flagging of a personal name as a smart tag. After the user flags the name, that user can make commands like scheduling meetings or adding to contacts, and the person's name will automatically be added. The same applies to addresses and other kinds of personal information, which can be smart tags for various Microsoft uses. At its core, smart tagging represents a form of named entity recognition, which extracts information from documents or raw data sources for various purposes.