In this paper we present DiLAS, a dedicated service for the management of annotations, supporting complex collaborative applications in distributed environments. The mission of DiLAS is to foster change in users’ interaction with digital libaries (DL) and contribute to developing services for social infrastructures in DLs. We thus introduce a new independent annotation service for interactive k...

The paper presents a comparative analysis of data harvesting and distributed computing as complementary models of service delivery within large-scale federated digital libraries. Informed by requirements of flexibility and scalability of federated services, the analysis focuses on the identification and assessment of model invariants. In particular, it abstracts over application domains, servic...

To support future digital library systems which draw information from different sources on the intemet, we have to provide integrated queries to pre-existing database servers which contain structured, semistructured and unstructured data. In this paper, we specijically examine the problem of querying both existing structured relational databases and bibliographic databases. By adopting the well...

Digital library systems with monolithic architectures are rapidly facing extinction as the discipline adopts new practices in software engineering, such as component-based architectures and Web Services. Past projects have attempted to demonstrate and justify the use of components through the construction of systems such as NCSTRL and ScholNet. This paper describes current work to push the boun...

3) Learning Objectives At the end of the module, student will be able to 1) Explain the basics of Image Retrieval and its needs in digital libraries. 2) Explain the different Image Retrieval types. 3) Classify Content Based Image Retrieval based on various features and differentiate between the techniques being used. 4) Explain the various Image Retrieval systems in existence and evaluation str...

The purpose of this study was to find out whether users should be involved in the design stage of a Digital Library (DL). Hence an experiment has been undertaken to find out the level of user satisfaction with a user-centred DL (UDL) compared to a non-user-centred DL (NDL). In this experiment, the UDL prototype has been compared with the NDL prototype. The two prototypes were then evaluated by ...

Grid technologies that have recently emerged around the world enable the integration of distributed computing resources. These technologies allow creating distributed grid services to hide the complexity of the underlying resource network and forming virtual organizations, which is the central concept of grid computing philosophy. Grid researchers and developers gather together under the auspic...

The overall goal of the Stanford Digital Library project is to provide an infrastructure that a ords interoperability among heterogeneous, autonomous digital library services. These services include both search services and remotely usable information processing facilities. In this paper, we survey and categorize the metadata required for a diverse set of Stanford Digital Library services that ...

To a great extent, ‘Semantics’ depends upon the context in which the user is seeking information. The proposed model aims at delivering information in the light of ontology-based document annotation, user annotation and domain ontology. The present study addresses the problem of semantic interoperability in digital library environment. In a heterogeneous environment, a mediation-based service i...