Journal of Digital Information (Texas Digital Library - TDL E-Journals)
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252 research outputs found
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Dynamic Adaptation of Content and Structure in Electronic Encyclopaedias
No full textAdaptive functionality has been applied successfully in many areas ranging from user interfaces to hypermedia systems. Digital libraries and electronic encyclopaedias, however, have rarely made use of the power of adaptation.
In this paper, an approach to include adaptation into encyclopaedic environments is presented. The proposal covers a set of adaptation techniques. They enable the system to explain technical terms and replace domain specific expressions with "plain" words automatically. Moreover, specific terms can be linked to further articles automatedly. Blacklisting, whitelisting and general link alteration are employed in order to assure quality standards and to provide users with more appropriate hyperlinks. With navigation support based on the automatic insertion of trails and suggestions of potentially interesting articles, the users\u27 navigation in encyclopaedias can be facilitated.
A first version has been implemented in project "Alexander" and has been made available to a limited public. The system is based on a traditional client-server architecture, where the server-side components perform the actual adaptation. Details of this pilot project are provided
Personalization of Shared Data: The ShaRef Approach
No full textPersonalization of services often has to cope with the conflicting goals of allowing cooperation and sharing, which require common data formats and services, and supporting individual use cases, which require as much personalization as possible. In this paper we present the ShaRef approach to personalization and sharing, which on the one hand allows users to cooperatively work with bibliographic references, and on the other hand supports the usage of this information in personalized and diverse ways. The goal of this approach is to foster as much cooperation as possible, while simultaneously supporting users with individualized ways of reusing the cooperatively managed data. This way of building applications combines the beneficial aspects of information sharing and personalization. Using this approach, applications are better suited to become building blocks in information infrastructures that are built by users in unpredictable ways
Adaptive Hypermedia System Interoperability: a \u27real world\u27 evaluation
No full textAdaptive Hypermedia (AH) authoring is widely acknowledged to be complex and time consuming, yet this vital process is rarely evaluated. Recent research has approached the authoring problem by ensuring that previously created materials can be converted from one system to another. This paper evaluates the results of this research, specifically the creation of adaptive materials in MOT and their conversion and subsequent delivery in WHURLE. A group of technically experienced IT users who are novice AH authors were exposed to MOT and WHURLE during an introductory week long course. This paper interprets the results of these authors using a "write once, deliver many" paradigm of adaptive hypermedia creation
If you build it, will it fly? Criteria for success in a digital repository
No full textInternational collaborations have produced a standard describing the functions of a digital repository and the characteristics of one that can be trusted. These results provide an abstract frame of reference for evaluating such repositories, but meaningful evaluation requires that they be supplemented by empirical data on the purpose of each repository and the institutional, cultural and resource context in which it operates. Informed evaluation will consider how a repository balances the competing objectives of preservation and dissemination, whether it is defined primarily in terms of a community of producers or a community or users, and the extent to which it operates in isolation or in collaboration with other institutions
A Web System Trace Model and Its Application to Web Design
No full textTraceability analysis is crucial to the development of web-centric systems, particularly those with
frequent system changes, fine-grained evolution and maintenance, and high level of requirements
uncertainty. A trace model at the level of the web system architecture is presented in this paper to
address the specific challenges of developing web-centric systems. The trace model separates the
concerns of different stakeholders in the web development life cycle into viewpoints; and classifies
each viewpoint into structure and behaviour. Tracing relationships are presented along two dimensions:
within viewpoints; and among viewpoints. Examples of tracing relationships are presented using UML.
This trace model is demonstrated through its application to the design of a commercial web project
using a web-design process. The design artifacts in each activity are transformed based on the artifacts
tracing relationship in the trace model. The model provides mechanisms for verification of consistency,
completeness and coverage within each viewpoint and the connectedness across viewpoints
Adaptive Personal Information Environment based on the Semantic Web
No full textPersonalised information systems aim to give the individual user support in accessing, retrieving and storing information. In order to support knowledge workers during their tasks of searching, locating and manipulating information, a system that provides information suitable for a particular user’s needs, and that is also able to facilitate the sharing and reuse information, is essential. This paper presents Adaptive Personal Information Environment (a-PIE); a service-oriented framework using Open Hypermedia and Semantic Web technologies to provide a personalised web-based system. a-PIE models the information structures (data and links) and context as Fundamental Open Hypermedia Model (FOHM) structures which are manipulated by using the Auld Linky contextual link service. a-PIE provides an information environment that enables users to search an information space based on ontologically defined domain concepts. The users can add and manipulate (edit, delete, comment, etc.) interesting data, or parts of information structures, into their information space leaving the original published data, or information structures, unchanged. a-PIE facilitates the shareability and reusability of knowledge according to users’ requirements
Towards a generic adaptive hypermedia platform: a conversion case study
No full textThis paper reports about the recent advances towards establishing a common platform for adaptive educational hypermedia (AEH) authoring. We present the conversion from MOT, a dedicated authoring system, to AHA! used in this context as delivery system for AEH. Moreover, we describe two new representation languages that emerged in the process: a common format for defining the static material, CAF, and an extended adaptation language for the description of the dynamic behaviour, LAG. Finally, some evaluations are shown and conclusions are drawn
Virtual Web Services
No full textIn this paper we propose an application of software agents to provide Virtual Web Services. A Virtual Web Service is a linked collection of several real and/or virtual Web Services, and public and private agents, accessed by the user in the same way as a single real Web Service. A Virtual Web Service allows unrestricted comparison, information merging, pipelining, etc., of data coming from different sources and in different forms. Detailed architecture and functionality of a single Virtual Web Service is user-dependent, and information gathered from existing Web Services may be used in an individual manner. The main goal of the proposal is twofold. First, virtual services allow unrestricted personalization of any Web Service by user-defined software executed at both the server- and the clientside. Second, virtual services provide efficient server-side monitoring and alerting once “vital” information provided by a real service is changed, and this change is of any interest to particular user. In addition, the service users are able to define their own, non-standard interfaces to existing services without a direct interaction with the service provider (information owner). This feature allows for user-specific versioning of services and continuous improvement of the service from the user point of view. By shifting the personalization aspects to the users, we reduce overall maintenance costs (from the service owner point of view) and improve system flexibility and fast adaptation to dynamic changes in the environment and evolving user requirements
