We describe a conversational‐mode, speech‐understanding system which enables its user to make airline reservations and obtain timetable information through a spoken dialog. The system is structured as a three‐level hierarchy consisting of an acoustic word recognizer, a syntax analyzer, and a semantic processor. The semantic level controls an audio response system making two‐way speech communication possible. The system is highly robust and operates on‐line in a few times real time on a laboratory minicomputer. The speech communication channel is a standard telephone set connected to the computer by an ordinary dialed‐up line.
|Original language||English (US)|
|Number of pages||19|
|Journal||Bell System Technical Journal|
|State||Published - Jan 1980|
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