When the word that the user wants appears it is selected, and the word is inserted into the text. At this time, the word choice(s) is altered so that the words provided begin with the same letters as those that have been selected. If the word that the user wants is not predicted, the writer must enter the next letter of the word.
If the word he intends to write is included in the list he can select it, for example by using the number keys. But the function is also very useful for anybody who writes text, particularly people–such as medical doctors–who frequently use long, hard-to-spell terminology that may be technical or medical in nature.Īutocomplete or word completion works so that when the writer writes the first letter or letters of a word, the program predicts one or more possible words as choices. The need to increase speed is noted by the fact that people who use speech-generating devices generally produce speech at a rate that is less than 10% as fast as people who use oral speech.
The original purpose of word prediction software was to help people with physical disabilities increase their typing speed, as well as to help them decrease the number of keystrokes needed in order to complete a word or a sentence. Many autocomplete algorithms learn new words after the user has written them a few times, and can suggest alternatives based on the learned habits of the individual user.ĭefinition Original purpose It works best in domains with a limited number of possible words (such as in command line interpreters), when some words are much more common (such as when addressing an e-mail), or writing structured and predictable text (as in source code editors). In graphical user interfaces, users can typically press the tab key to accept a suggestion or the down arrow key to accept one of several.Īutocomplete speeds up human-computer interactions when it correctly predicts the word a user intends to enter after only a few characters have been typed into a text input field.
In Android and iOS smartphones, this is called predictive text. For word prediction in psycholinguistics, see Prediction in language comprehension.Īutocomplete, or word completion, is a feature in which an application predicts the rest of a word a user is typing.
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