Semantic Interpretation for Speech Recognition

Semantic Interpretation for Speech Recognition

Semantic Interpretation for Speech Recognition (SISR) defines the syntax and semantics of annotations to grammar rules in the Speech Recognition Grammar Specification (SRGS). Since 5 April 2007 it is currently a World Wide Web Consortium Recommendation. [ [http://www.w3.org/TR/semantic-interpretation/ Semantic Interpretation for Speech Recognition (SISR) Version 1.0 ] ]

By building upon SRGS grammars it allows Voice browsers via ECMAScript to semantically interpret complex grammars and provide the information back to the application. For example, it allows utterances like "I would like a coca cola and three large pizzas with pepperoni and mushrooms." to be interpreted into an object that can be understood by an application. For example, the utterance could produce the following object named order:

{ drink: { liquid:"coke", drinksize:"medium"}, pizza: { number: "3", pizzasize: "large", topping: [ "pepperoni", "mushrooms" ] } }

If used against this grammar that includes SISR markup in addition to the standard SRGS grammar in XML format:

I would like a out.drink = new Object(); out.drink.liquid=rules.drink.type; out.drink.drinksize=rules.drink.drinksize; and out.pizza=rules.pizza; coke pepsi coca colaout="coke"; out="medium"; smallout="small"; medium largeout="large"; regularout="medium"; out=new Array; out.push(rules.top); and out.push(rules.top); anchovies pepperoni mushroomout="mushrooms"; mushrooms out.drinksize=rules.foodsize; out.type=rules.kindofdrink; out.pizzasize=rules.foodsize; out.number=rules.number; pizzas with out.topping=rules.tops; out=1; a one twoout=2; threeout=3;

ee also

* VoiceXML
* SRGS

References

External links

* [http://www.w3.org/TR/speech-grammar/ SRGS Specification (W3C Recommendation)]
* [http://www.w3.org/TR/semantic-interpretation/ SISR Specification (W3C Recommendation)]
* [http://www.w3.org/Voice/ W3C's Voice Browser Working Group]


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