Showing posts with label context-aware. Show all posts
Showing posts with label context-aware. Show all posts

Saturday, October 2, 2010

20101003 - Zhang, Context-aware Mobile Learning...

Context-aware mobile learning on the Semantic Web

by Zhang, Xiaoyun, M.Sc., Lakehead University (Canada), 2008 , 111 pages; AAT MR43414



My Interest:

1) Context-aware mobile learning.

2) Semantic web.


Action:

Medium-low priority to read specific parts of Dissertation in future.

Motivation

Progress made in Semantic Web technologies and Ubiquitous Computing has lead to the development of mobile learning services that can adapt to the learner's background, learner's needs, and surrounding environment. In particular, the emerging techniques from these two technologies have the potential to revolutionize the way mobile learning services available on the web are discovered, adapted, and delivered according to context.


Context acquisition and management,

conceptual knowledge modeling and reasoning, and

adaptive services discovery

are the main ingredients for designing such context-aware mobile learning systems.


However, a number of challenges are still facing the research community in this field. These can be summarized in the following:


(i) current mobile learning services act as passive components rather than active components that can be embedded with context awareness mechanisms,


(ii) existing approaches for service composition neglect contextual information on surrounding environment, and


(iii) lack of context modeling and reasoning techniques for integrating the various contextual features for better personalization.


Research Goal

In this thesis an attempt is made to solve the above-mentioned problems. These challenges are addressed by proposing a personalized mobile learning system based on a global ontology space to aggregate and manage context information related to the learner, the used device, the surrounding environment, and the task at hand.

Personalised Mobile Learning

The system adopts a unified reasoning mechanism, around the global ontology space, in order to adapt the learning sequence and the learning content based on the learner profile and the perceived contextual information. The adopted approach for ontology reasoning aims at achieving two types of adaptations--system-centric adaptation and--learner-centric adaptation.


These are implemented on a Run-Time Environment that identifies new contextual changes and translates them into new adaptation constraints.


We developed and tested our system on a number of subject-domain ontologies using various learning scenarios, and the obtained experimental results are very promising.



Keywords: Semantic Web, Ontology, Mobile Learning, Ubiquitous Computing, Context Modeling and Management, Ontology-based Reasoning, Web Services.



CHAPTER 2

BACKGROUND & RELATED WORK 5

2.1 Semantic Web 6

2.2 Current Web V.S Semantic Web 6

2.3 Semantic Web Technologies 7

2.4 Reasoning Techniques 9

2.5 Related Work 10


CHAPTER 3

SYSTEM DESIGN & ARCHITECTURE 16

3.1 Overall System Architecture 17

3.1.1 Operational environment 19

3.1.2 User interface design 20

3.2 Context Acquisition & Representation 22

3.3 Ontology-based Context Modeling 26

3.3.1 Domain ontology 28

3.3.2 Learner ontology 30

3.3.3 Device ontology 32

3.3.4 Environment ontology 33

3.3.5 Activity ontology 34

Sunday, September 26, 2010

20100926 - Morales-Morell, Usability aspects of Location-aware...app

Usability aspects of a location-aware ToDo list application

by Morales-Morell, Anibal, M.S., University of Puerto Rico, Mayaguez (Puerto Rico), 2001 , 94 pages; AAT 1400545



My Interest:

1) Usability test.

2) Location-aware.

3) Context-aware applications.


Action:

Medium-low priority to read specific parts of Dissertation in future.



Problem Statement


Location awareness in handheld computer and mobile applications is a new field that has been opened by the development of new technologies and by the growing use of handheld computing devices.


Up to now there were no formal studies in the usability of applications with location-awareness.


Research Goal


To that end, this thesis proposes that adding location-awareness to an application will augment its usability by increasing the user satisfaction and efficiency of its user.


Methodology


This thesis presents the study and results after conducting an usability test with experimentation, analysis, and development of a prototype ToDo list application running on a Palm computer that emulates location-awareness.


Comments: Softcopy Dissertation is scanned version; cannot copy and paste; difficult to blog about it.



2.1 Location Awareness

2.2 Context-Aware Applications


3.7 Analysis

3.7.1 User Satisfaction

3.7.2 Errors


Chapter 4 Test Results


Chapter 5 Prototype Development

20100926 - Lavoie, Enabling contextual mLearning...

Enabling contextual mLearning: Design recommendations for a context-appropriate user interface enabling mobile learning

by Lavoie, Marie-Claude, M.A., Concordia University (Canada), 2007 , 59 pages; AAT MR28836



My Interest:

1) Context-appropriate user interface.

2) Pedagogy of M-Learn.

3) Current M-Learn applications.

4) Context-aware M-Learn.


Action:

To read the Dissertation in future.



Research Goal


The aim of this thesis is to provide design recommendations for a context-appropriate user interface enabling mobile learning (mLearning).


Background


mLearning applications are being used on mobile devices in classrooms with students of all ages.

How can the technology be merged within a device's operating system to help manage various phone events in order to aid in the management of learning activities.


Methodology


Participatory design was used and both qualitative and quantitative data was collected.


Two interviews of 17 conveniently selected adult participants were performed which discuss time management strategies and specific uses of various technologies on mobile phones with participants.


Conclusion


I conclude that a mobile learning prototype should


(1) be able to collect information autonomously;


(2) should have a variety of functionalities;


(3) should have modular functionalities in order to allow the user to customize the device; and


(4) should have an interface as flexible as possible to cater to a variety of users.


Comments: Softcopy Dissertation is scanned version; cannot copy and paste; difficult to blog about it.



2 mLearning

2.1 Mobile technology explored

2.2 The potential impact of mLearning on education

2.2.1 Interoperability

2.2.2 Minitiarization

2.2.3 Quality of service

2.2.4 Adaptivity

2.3 Pedagogy of mLearning

2.4 Current mLearning applications

2.5 Beyond the classroom

2.6 Context-aware mLearning

2.7 Chapter summary