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Pace VoiceXML Absentee System

CS616 Software Engineering. Pace VoiceXML Absentee System. Paul Visokey, Ping Gallivan, Yani Mulyani, Lisa Jordan, Elaine Li, George Mathew, Qisheng Hong Presenter Name : Paul Visokey. Project Goals.

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Pace VoiceXML Absentee System

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  1. CS616 Software Engineering Pace VoiceXML Absentee System Paul Visokey, Ping Gallivan, Yani Mulyani, Lisa Jordan, Elaine Li, George Mathew, Qisheng Hong Presenter Name : Paul Visokey

  2. Project Goals • Bring web-based development and content delivery to interactive voice response applications • Create an application for tracking student class absences • Convert application from TellMe portal to Ascent Technology hardware to enhance accessibility and reliability

  3. Voice Applications: • Voice Recognition: Voice recognition implies only that the computer can take dictation, not that it understands what is being said. • Natural language processing: Comprehending human languages falls under a different field of computer science called natural languageprocessing. • Speaker dependent systems:-These systems generally require an extended training session during which the computer system becomes accustomed to a particular voice and accent.

  4. Voice Applications Cont’ • Discrete speech systems:Many systems require that the speaker speak slowly and distinctly and separate each word with a short pause. These systems are called discrete speech systems. • Continuous speech systems:These are voice recognition systems that allow you to speak naturally. Speech Recognition is the engine that drives interactive voice applications

  5. Voice applications in past and today • Traditionally, voice applications proprietary Voice Response systems, text-to-speech conversion software (TTS), and commercial automatic speech recognition software (ASR) • Today, VoiceXML coders can employ free VoiceXML gateways, such as :VoiceGenie and TellMe, to speak the pages they are developing • The computer of the future understands what we say, will talk to us, show us images and movies, and fit in a palm

  6. XML and VoiceXML, HTML • Applications using XML technologies should be accessible on three different devices: The telephone (VoiceXML),Mobile phone mini browsers (WML),PC browsers (HTML). • To realize this vision, we willcreate abstract models and encode them in XML,must recognize the device, transform these models into the appropriate rendering forma

  7. Web Architecture

  8. Technology Analysis

  9. Technology Analysis, Cont’ • Voice Web Technology VoiceXML : Schema of XML • Visual Web Technology: PHP , HTML, JavaScript Database: MySQL http://geocities.com/project_team4/ FOR MORE INFO... http://www.w3.org/2001/vxml

  10. VoiceXML Architecture

  11. VoiceXML Concepts • Dialogs ( 2 Kinds): forms and menus • Subdialogs: a mechanism for invoking a new interaction, and returning to the original form • Sessions: begins when the user starts to interact with a VoiceXML interpreter and continues as VoiceXML documents are loaded and unloaded.

  12. VoiceXML Grammars • They specify what spoken words to listen for and how to interpret them, Grammar defines what is valid user input • Each dialog has one or more speech and/or DTMF grammars associated with it • Grammars can be active for the entire application, a document, a form, or a field, and active only when the user is in that dialog

  13. Grammars Cont’— • In a VoiceXML application, grammar represents the point  where the user's voice or input is compared against a set of acceptable responses • The default scope for a grammar is the element in which it is defined. • Grammars are either defined in the application or called from an external file

  14. <field name="courseid"> <prompt>Please say the course i d</prompt> <grammar> <![CDATA[ [ (Char_speak:d1 Char_speak:d2 Dig_speak:d3 Dig_speak:d4 Dig_speak:d5) {<option strcat($d1 strcat($d2 strcat($d3 strcat($d4 $d5))))>} (cancel) {<option "cancel">} ] Char_speak [c{return(c)} s{return(s)}] Dig_speak [ one {return(1)} two {return(2)} ………………… ] ]]> </grammar> <filled> <prompt> You said <value expr="courseid"/> </prompt> </filled> Grammar Example

  15. Documents define applications as a set of named dialog states , document execution begins at the first dialog by default As each dialog executes, it determines the next dialog. When a dialog doesn't specify a successor dialog, document execution stops. VoiceXML documents—Execution within onedocument

  16. VoiceXML documents—Executing a multi-document application • Transition of documents in an application that sharing the same root document, and refer it in the other documents <vxml> elements

  17. VoiceXML Documents Cont’ • A VoiceXML document contains a single <vxml> element, which is the root element. • Each <field> element should contain a <grammar> element.

  18. VoiceXML Example <? XML version= “1.0”?> < vxml version=“1.0”> <form> <field name=“drink” > <prompt>would you like coffee,tea,milk? </prompt> <grammar src=“drink.gram” type=“application/x-jsgf”/> </field > <block> <submit next=http://www.drink.example/drink2.asp/> </block> </form> </vxml>

  19. Tellme Studio Platform

  20. TellMe Studio Grammars • TellMe Studio Grammar Library • Define Own Grammar using: a) Nuance Grammar Specification Language b) Speech Grammar Markup Language (GRXML)

  21. Description of Application • VoiceXML Absentee system will receive and track student absences via phone calls and /or website entries. • The system provides the instructor and other administrators with a permanent record of absentees that can be accessed and displayed through a Web interface FOR MORE INFO... http://www.csis.pace.edu/~ctappert/cs615-01/default.htm

  22. Work Flow of Absentee System Internet PSTN VoiceXML VoiceXML Automatic Dialog HTTP Web server HTTP Student ID etc Student Database VoiceXML Browser Student

  23. Technology---Absentee System • TellMe Studio technology platform being used (1800-555-VXML) • VoiceXML 1.0 Standards being adopted • demo

  24. Current Status • VoiceXML Testing Based TellMe Studio in CS616 • Behind in Ascent Technology Portal Facility • Terminate Absentee phone number on browser • Point browser to Pace Utopia server • Test browser compatibility with VoiceXML version 1.0 Absentee application

  25. Voice Absentee System Resources • Equipment, ASCENT hardware, PACE VoiceXML Lab _ Support & outside services TellMe Studio

  26. Related Documents • http://csis.pace.edu/~ctappert/cs616-02/default.htm • http://studio.tellme.com/ • http://www.voicexml.org

  27. Questions?

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