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On the building of binary spelling interfaces for augmentative communication.

Mikhail Tregoubov·Niels Birbaumer
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Abstract

A criterion for design of optimal binary spelling interfaces (SI)--the average expectation of number of writing steps (trials) required to write one letter--is presented and discussed. This criterion is relevant for practical usage of any menu-oriented alternative communication system, mechanical device or brain-computer-interface, when a user (typically, a patient with devastating neuromuscular handicap) can not create an intended single binary response with an absolute reliability. An algorithm for building of a corresponding binary tree is developed and evaluated. This algorithm is efficient, when selection probabilities have essentially different values (the worst case).

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AlgorithmsCommunication Devices for People with DisabilitiesHumansInformation Storage and RetrievalNatural Language ProcessingPattern Recognition, AutomatedSignal Processing, Computer-AssistedUser-Computer InterfaceVocabulary, ControlledWord ProcessingJournal Article

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Mikhail Tregoubov, Niels Birbaumer. 2005. On the building of binary spelling interfaces for augmentative communication.. https://doi.org/10.1109/tbme.2004.836505

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