Design and construction of a binary-tree system for language modelling
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United States of America Patent
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Jul 25, 1989
Grant Date -
N/A
app pub date -
Oct 29, 1987
filing date -
Oct 29, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In order to determine a next event based upon available data, a binary decision tree is constructed having true or false questions at each node and a probability distribution of the unknown next event based upon available data at each leaf. Starting at the root of the tree, the construction process proceeds from node-to-node towards a leaf by answering the question at each node encountered and following either the true or false path depending upon the answer. The questions are phrased in terms of the available data and are designed to provide as much information as possible about the next unknown event. The process is particularly useful in speech recognition when the next word to be spoken is determined on the basis of the previously spoken words.
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