JCDL Doctoral Consortium 2005
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Papers and presentations of doctoral consortium participants
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Browsing JCDL Doctoral Consortium 2005 by Subject "digital libraries"
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Item Digital Libraries as Learning Environments: A Case for Enabling Digital Libraries(2005-08-10T12:57:13Z) Ahmad, FaisalDigital libraries have improved the availability of resources by leaps and bonds compared to traditional libraries. The improved availability does not have much effect on improved accessibility of resources. Accessibility is related to making the resources useable and useful for the user [1]. This shortcoming can be addressed by changing the focus from user-centered design to learner-centered design of digital libraries. In this paper, I present a theory of learning that is a natural fit for online digital libraries. Based on this theory, I will present a framework that provides guidance for design and development of educational digital libraries. I call the resulting digital libraries “Enabling Digital Libraries”. Enabling digital libraries are characterized by the interactions that provide processes and representations that enable a learner to grasp a higher level of understanding related to her task / information requirements / learning needs. I will show how the conceptual framework can be used for evaluation of current digital libraries interfaces and how can it be used to guide design of new generation of educational digital libraries.Item Digital Libraries as Learning Environments: A Case for Enabling Digital Libraries(2005-08-10T13:02:59Z) Ahmad, FaisalItem Semantic Search in P2P-based Digital Libraries(2005-08-08T22:02:05Z) Ding, HaoItem Semantic Search in Peer-to-Peer based Digital Libraries(2005-08-08T21:50:18Z) Ding, HaoThis paper gives an outline of a PhD thesis inspired by the information searching over heterogeneous metadata records within the scenario of Peer-to-Peer (P2P) based digital libraries. We survey a representative set of P2P systems in order to build prospective platform and discuss why a super-peer (peer community) based topology is suitable for schema-based P2P applications. Furthermore, we exploit ontologies for storing metadata records in a structured and formal way, and for broadening queries with closely related terms, thus yielding more relevant results. All metadata records into RDF format and a RDF database, such as Sesame, is adopted to store and query these records and schema information. Additionally, since words generally have more than one sense, we have to choose the right sense and highly related terms for extending the query. Such information can be delivered by applying a lexical database, like WordNet, which models terms with their meanings and relationships in between. The resulting prototype system is expected to serve as a framework for re-processing metadata records into structured and semantic-enriched collection in specific domains, as a platform for the searching over heterogeneous collections, and as a source of inspiration for exploiting ontologies in information searching.