497 research outputs found
Adaptive and Reactive Rich Internet Applications
In this thesis we present the client-side approach of Adaptive and Reactive Rich Internet Applications as the main result of our research into how to bring in time adaptivity to Rich Internet Applications. Our approach leverages previous work on adaptive hypermedia, event processing and other research disciplines. We present a holistic framework covering the design-time as well as the runtime aspects of Adaptive and Reactive Rich Internet Applications focusing especially on the run-time aspects
CHORUS Deliverable 2.1: State of the Art on Multimedia Search Engines
Based on the information provided by European projects and national initiatives related to multimedia search as well as domains experts that participated in the CHORUS Think-thanks and workshops, this document reports on the state of the art related to multimedia content search from, a technical, and socio-economic perspective.
The technical perspective includes an up to date view on content based indexing and retrieval technologies, multimedia search in the context of mobile devices and peer-to-peer networks, and an overview of current evaluation and benchmark inititiatives to measure the performance of multimedia search engines.
From a socio-economic perspective we inventorize the impact and legal consequences of these technical advances and point out future directions of research
Context-awareness for adaptive information retrieval systems
Philosophiae Doctor - PhDThis research study investigates optimization of IRS to individual information needs in order of relevance. The research addressed development of algorithms that optimize the ranking of documents retrieved from IRS. In this thesis, we present two aspects of context-awareness in IR. Firstly, the design of context of information. The context of a query determines retrieved information relevance. Thus, executing the same query in diverse contexts often leads to diverse result rankings. Secondly, the relevant context aspects should be incorporated in a way that supports the knowledge domain representing users’ interests. In this thesis, the use of evolutionary algorithms is incorporated to improve the effectiveness of IRS. A context-based information retrieval system is developed whose retrieval effectiveness is evaluated using precision and recall metrics. The results demonstrate how to use attributes from user interaction behaviour to improve the IR effectivenes
Islamic Economy Through Online Community (IEOC) Issues on Information Gathering & Storing
Knowledge Communities are communities of interest that come together to share
knowledge that affects performance. Knowledge Management envisions getting
the right information within the right context to the right person at the right time
for the right business purpose. Communities are more aware and concern of
sharing and transfer the knowledge. The rapid development of web technology
had made the World Wide Web an important and popular application platform for
disseminating and searching for information as well as conducting business. As a
huge source, World Wide Web has allowed unprecedented sharing of ideas and
information on a scale never seen before. The use of Web and its exponential
growth are now well known, and they are causing a revolution in the way people
use computers and perform daily tasks. Therefore Islamic Economy thru Online
Community [IEOC] intention was to proposed for an avenue of knowledge
sharing and experience for the community. Issue on Information Gathering and
Storing is discussed in this project paper where it concentrates on how data are
being managed and used. The target users of this website are among consumers
and business personnel. In developing the project, the methodology comprises of
four ( 4) phase: System Planning and Strategy , System Analysis and Design ,
System Implementation and System Testing. The tools used comprises of
Macromedia Dreamweaver MX 2004, Joomla Open Source, Apache Web Server
and PHP scripting language. In the end of this paper, conclusion and
recommendation part will discuss for future enhancement.
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A Usability Approach to Improving the User Experience in Web Directories
Submitted for the degree of Doctor of Philosophy, Queen Mary, University of Londo
A usability approach to improving the user experience in web directories
PhDWeb directories are hierarchically organised website collections that offer users subjectbased
access to the Web. They played a significant part in navigating the Web in the past
but their role has been weakened in recent years due to their cumbersome expanding
collections. This thesis presents a unified framework combining the advantages of
personalisation and redefined directory search for improving the usability of Web
directories.
The thesis begins with an examination of classification schemes that identifies the
rigidity of hierarchical classifications and their suitability for Web directories in contrast
to faceted classifications. This leads on to an Ontological Sketch Modelling (OSM) case
study which identifies the misfits affecting user navigation in Web directories from
known rigidity issues. The thesis continues with a review of personalisation techniques
and a discussion of the user search model of Web directories following the suggested
directions of improvement from the case study. A proposed user-centred framework to
improve the usability of Web directories which consists of an individual content-based
personalisation model and a redefined search model is then implemented as D-Persona
and D-Search respectively. The remainder of the thesis is concerned with a usability test
of D-Persona and D-Search aimed at discovering the efficiency, effectiveness and user
satisfaction of the solution. This involves an experimental design, test results and
discussions for the comparative user study.
This thesis extracts a formal definition of the rigidity of hierarchies from their
characteristics and justifies why hierarchies are still better suited than facets in
organising Web directories. Second, it identifies misfits causing poor usability in Web
directories based on the discovered rigidity of hierarchies. Third, it proposes a solution
to tackle the misfits and improve the usability of Web directories which has been
experimentally proved to be successful
Ontology-based knowledge management for technology intensive industries
EThOS - Electronic Theses Online ServiceGBUnited Kingdo
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