This paper presents a knowledge-based approach to eLearning, where the domain ontology plays central role as a resource structuring the learning content and supporting flexible adaptive strategies for navigation through it. The content is oriented to computer aided language learning of English financial terminology. Domain knowledge is acquired to cover the conceptualisation of basic notions ab...

Many projects in computational biology lead to the creation of a small application program or collection of scripts that can be of use to other scientists. A natural progression is to make this tool available via a Web site or by creating a service for it, from now on collectively called ‘‘Web resource.’’ We conducted a survey among providers and users of scientific Web resources, as well as a ...

Desert Ecology Research Group, School of Biological Sciences, University of Sydney, Sydney, NSW 2006, Australia, Trophic Cascades Program, Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR 97331, USA, School of Environmental and Forest Sciences, University of Washington, Seattle, WA 98195, USA, CSIRO Land and Water Flagship, PO Box 2111, Alice Springs, NT 0871,...

As the use of WLANs based on IEEE 802.11 increases, the need for QoS becomes more obvious. The new IEEE 802.11e standard aims at providing QoS, but its contention-based medium access mechanism, EDCA, provides only service differentiation, i.e. soft QoS. In order to provide hard QoS, earlier we have proposed an extension called EDCA with resource reservation (EDCA/RR), which enhances EDCA by off...

Being able to identify locations associated to a Web resource is essential for providing location-based Web applications. However, geographical information in Web documents is rarely supplied in a machine-readable way and therefore not easily discoverable. As a consequence, it is necessary to extract geographical keywords from Web documents and to associate locations with them. This method is c...

workflow, resource management, resource model Resource management is a key issue in providing resource independence and efficient use of workflow resources. The paper has outlined a design of such a resource management system for enterprise workflow environments. It is capable of handling a large number of workflow resources that are independently managed by pre-existing resource systems. It in...

An essential requirement for providing secure services in wireless sensor networks is the ability to establish pairwise keys among sensors. Due to resource constraints on the sensors, the key establishment scheme should not create significant overhead. To date, several key establishment schemes have been proposed. Some of these have appropriate connectivity and resistance against key exposure, ...