Cyber Tutor Cyber Tutor Alexei Sourin , Leon Ho Chiau Wai School of - - PDF document

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Cyber Tutor Cyber Tutor Alexei Sourin , Leon Ho Chiau Wai School of - - PDF document

Cyber Tutor Cyber Tutor Alexei Sourin , Leon Ho Chiau Wai School of Computer Engineering, Nanyang Technological University, Singapore eLearning Forum Asia 2011, 8 June 2011 Presentation Outline Outline Motivation R&D goals


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Cyber Tutor eLearning Forum Asia 2011, NTU Singapore 1

Cyber Tutor

eLearning Forum Asia 2011, 8 June 2011

Alexei Sourin, Leon Ho Chiau Wai School of Computer Engineering, Nanyang Technological University, Singapore

Presentation Outline

Outline

  • Motivation
  • R&D goals
  • Proposed Framework

eLearning Forum Asia 2011, 8 June 2011

  • Implementation
  • Conclusion

Motivation

  • Electronic education often exceeds the traditional pace of teaching
  • Disorientation and exhaustion
  • Excitement runs away
  • Merely downloading course

materials

eLearning Forum Asia 2011, 8 June 2011

  • Humanization and personalization

are missing in LMS

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Cyber Tutor eLearning Forum Asia 2011, NTU Singapore 2

Hypothesis

  • Adding to LMS various AI talking agents with tunable look and feel

as well as different ways of delivering educational content may engage students better and give them a feeling of real personalized teaching rather than detached “computer” education

eLearning Forum Asia 2011, 8 June 2011

  • Should be used optionally
  • Should not replace other ways of e-learning
  • May integrate other e-learning tools in addition how it can be done

by LMS

R&D goals

  • To design and develop a generic AI cyber tutor with the abilities:

– To maintain conversation and answer specific course-related questions – To deliver content using various media forms – To allow for tunable

eLearning Forum Asia 2011, 8 June 2011

  • Visual appearance
  • Voice
  • Environment/background and accessories
  • Multiple delivery ways ranging from 3D shared virtual spaces to IM

devices and mobile devices

  • Low implementation and maintenance cost preferably based on
  • pen source and multi-platform software

Cyber tutor com ponents

  • Cyber tutor components:

– AI – GUI (may have several) – Delivery platform (may have several)

  • Selected software components

eLearning Forum Asia 2011, 8 June 2011

Selected software components

– AI: AIML (Artificial Intelligence Markup Language) and A.L.I.C.E. brain (http://alicebot.org) as a core part – GUI: 3D Haptek talking head (http://www.haptek.com), VRML avatar, text chat – Delivery platform: web-based, 3D VRML, chat in IM services, standalone

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Cyber Tutor eLearning Forum Asia 2011, NTU Singapore 3

AI brain

  • ALICE (Artificial Linguistic Internet Computer Entity) is a natural

language processing chatterbot—a program that engages in a conversation with a human by applying some heuristical pattern matching rules to the human's input

  • Inspired by Joseph Weizenbaum's classical ELIZA program
  • Additional knowledge files/categories can be added to the core

database

eLearning Forum Asia 2011, 8 June 2011

database

  • It can be also augmented with other knowledge databases

The log spiral plots all 24,000 categories in the ALICE

  • Brain. The spiral itself represents the root. The trees

emerging from the root are the patterns recognized by

  • ALICE. The branching factor for the root is about

2000, but the average branching factor of the second pattern word is only about two. (http://www.alicebot.org/documentation/gallery/)

GUI : Haptek, VRML, text chat

  • Haptek software creates photo-realistic, 3-D, full-bodied, fully

animated, morphing and emotive characters in dynamic environments that visually and verbally interact with the user and with one another over the Internet

  • VRML Humanoid Animation (H-Anim) is an approved ISO standard

for humanoid modeling and animation H-Anim defines a

eLearning Forum Asia 2011, 8 June 2011

for humanoid modeling and animation. H Anim defines a specification for defining interchangeable human figures so that those characters can be used across a variety of 3D games and simulation environments

  • Text chat can be implemented by java scripts as well as delivered

through various IM services

Proposed Fram ew ork

  • Cyber-instructor Server-Client Architecture

eLearning Forum Asia 2011, 8 June 2011

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Cyber Tutor eLearning Forum Asia 2011, NTU Singapore 4

Proposed Fram ew ork

  • Server-side implementation

eLearning Forum Asia 2011, 8 June 2011

  • Client-side implementation

Proposed Fram ew ork

  • Integration of Cyber-instructor and IMified

eLearning Forum Asia 2011, 8 June 2011

I m plem entation

  • Capabilities of Cyber tutor developed

– Maintaining common conversation – Answering technical questions on the topic of the subjects taught providing answers in text and multimedia form – Changing its look and feel following the user configurations – Memorizing information provided by the users to enrich, replace

eLearning Forum Asia 2011, 8 June 2011

g p y , p

  • r augment its knowledge database

– Showing visual emotions followed the content

  • f

the conversation – Can be accessed from the web pages as well as from various IM services such as MSN, GoogleTalk, Yahoo Messenger etc.

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Cyber Tutor eLearning Forum Asia 2011, NTU Singapore 5

I m plem entation

  • Cyber-instructor home page

eLearning Forum Asia 2011, 8 June 2011

I m plem entation

  • Text & Multimedia conversation

eLearning Forum Asia 2011, 8 June 2011

  • Conversation with the same cyber tutor but in 3D shared virtual

world – virtual Campus of NTU

I m plem entation

eLearning Forum Asia 2011, 8 June 2011

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Cyber Tutor eLearning Forum Asia 2011, NTU Singapore 6

I m plem entation

  • Conversation via Google talk

eLearning Forum Asia 2011, 8 June 2011

Conclusion

  • Developed cyber tutor with expandable AI brain, various

GUIs, tuneable look and feel, and emotions

  • Cyber tutors may finally engage many students in real

education and significantly enhance their cyber-learning experience with personal mentoring as well as enable

eLearning Forum Asia 2011, 8 June 2011

p p g many teachers to create and tune their own Cyber tutors so as to provide fun and effective teaching for their students

Thank you Q&A

eLearning Forum Asia 2011, 8 June 2011