The IT CrowdMoh Moh Oo, Lin-Feng Lee, Yu Guan

Moh Moh Oo DM and GM, ppt information collecting

Lin-Feng Lee DM & Strategies, ppt formalizing

Yu Guan GM & Strategies, ppt structure designing

Introduction 3D Web Basics Adaptivity for 3D Web Sites A Generic Software Architecture for

Adaptive 3D Web Site Conclusions and discussion

Motivation Motivation for the group to choose this topic To learn more about the adaptive technologies in a 3D Web

context. Motivation for the author

To form a general architecture for 3D Web sites, after analyzing the differences between web-based hypermedia and 3D web sites adaptive technology.

Article linkhttp://www.dcs.warwick.ac.uk/~acristea/courses/CS411/2009/Book%20-%20The%20Adaptive%20Web/Adaptive3DWebSites.pdf Authors

Luca Chittaro and Roberto Ranon

Related Research Comparing the web-based hypermedia

and 3D Web sites Analyzing the problems when applying

the Web-based hypermedia adaptive technology directly to the 3D context

Main Findings A general software Architecture for

Adaptive 3D Web Sites

Moh Moh Oo

Two types of 3D Websites 3D VE (tourism sites) 3D models of object (e-commerce sites)

Hypermedia as the mainstream 3D enhances hypermedia Adaptivity is important for both 3D

and Hypermedia. Adaptive web technologies cannot

be directly applied into 3D

Applications and motivation Learning and training E-commerce and product visualisation Virtual museums Architecture and virtual cities Virtual communities

3D Web technologies Complex 3D websites for worldwide users Integrating with other contents Through Input/output devices

Real world-alike imaginary world Benefits

Help people in understanding concepts. Enable a safe environment for specific

tasks. Realistic representation of subjects

or phenomena Benefit

Learners are able to analyse the same subject from different points of view

E-commerce websites with an 3D interface Intention

Provide users the 3D virtual environment representing the store.

Advantages Familiar real-world alike shopping experience Supports customer’s natural shopping actions Satisfy social and emotional needs of

customers

Demands for 3D models 2D images fail to maintain required

spatial information Need detailed digital cultural information.

What 3D presents in Virtual Museums Cultural objects their contextual environment

Situated representation of objects Virtual reconstruction of objects and etc. Build environments that never existed physically

What they can provide for users Possibility to explore inside 3D models Socializing (can meet and chat)

Other possible applications of Virtual cities Improved planning, design and

management of real cities for developers. Detailed guide for tourists. Community resources for residents.

Virtual 3D space for users to interact among each other.

Eg. Alphaworld Collaborative engagement from users

Users build and inhabit in virtual community spaces. (artworks, building and full towns)

Social activities such as virtual ceremony (wedding)

VRML (Virtual Reality Modelling Language) Integrated coherent model of content Text files using hierarchical scene graph Message-passing mechanism Script nodes

X3D (eXtensible) Improvement on VRML in three areas.

New nodes and capabilities, Additional encoding formats, Functional areas (Components)

VRML can be translated into X3D.

Lin-Feng Lee

Web-based hypermedia

3D Web sites

Presentation container

Page 3D space

Content media Mainly text, but also images, videos, ...

Mainly 3D models, but also text, images, videos, ...

Structural organisation

Graph of pages 3D space or graph of 3D spaces

Navigation Through hyperlinks By moving in 3D space (e.g., walking, flying) and teleporting; also through hyperlinks

Other common users’ activities

Reading pages, filling forms

3D object manipulation (clicking, moving, ...)

In a Web-based hypermedia way: Downloading all content from server in

one time, so it will be a time-consuming process of UM updating.

Solution: Monitoring closely the user’s behaviour Send relevant time-stamped users’

actions to the server

Adaptive navigation and interaction support

Adaptive presentation of content

Navigation support techniques (Huges et al.)

Direct guidance Hiding Sorting Annotation

Finite State Machines (Celentano and Pittarello)

Monitor user’s behaviour and to exploit the acquired knowledge for anticipating user’s needs in forthcoming interactions.

Techniques for Web-based hypermedia Optional fragments and altering

fragments Techniques for adaptive presentation

of 3D content Fragment-based approach

Implemented by VRML and X3D Domain limitation

Yu Guan

A Usage Data Sensing module A Usage Data Recorder module An Adaptivity Engine A 3D Content Creator module

A 3D store Virtual Environment (VE) Usage Data Sensing and Recording User Model 3D Store Adaptivity

Products Shelves Cart Checkout counter

Shopping navigation Traditional way, e.g. shop browsing, ask

sales advisor……. VE way, a walking product!

Seen products Clicked products Cart products Purchased products

Demographic Data User Preferences about the store Usage Data Product Interest Ranking

Mainly concern where and how products are displayed Product visibility Product exposure level Background music Related Product

Conclusions Introduction and 3D Web basics Adaptivity for 3D Web Sites A Generic Software Architecture for

Adaptive 3D Web Sites Discussion

What is the limitations of this architecture?