The Experts below are selected from a list of 161238 Experts worldwide ranked by ideXlab platform
Edward A. Fox - One of the best experts on this subject based on the ideXlab platform.
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streams structures spaces scenarios societies 5s a formal model for Digital Libraries
ACM Transactions on Information Systems, 2004Co-Authors: Marcos Andre Goncalves, Edward A. Fox, Layne T Watson, Neill A KippAbstract:Digital Libraries (DLs) are complex information systems and therefore demand formal foundations lest development efforts diverge and interoperability suffers. In this article, we propose the fundamental abstractions of Streams, Structures, Spaces, Scenarios, and Societies (5S), which allow us to define Digital Libraries rigorously and usefully. Streams are sequences of arbitrary items used to describe both static and dynamic (e.g., video) content. Structures can be viewed as labeled directed graphs, which impose organization. Spaces are sets with operations on those sets that obey certain constraints. Scenarios consist of sequences of events or actions that modify states of a computation in order to accomplish a functional requirement. Societies are sets of entities and activities and the relationships among them. Together these abstractions provide a formal foundation to define, relate, and unify concepts---among others, of Digital objects, metadata, collections, and services---required to formalize and elucidate "Digital Libraries". The applicability, versatility, and unifying power of the 5S model are demonstrated through its use in three distinct applications: building and interpretation of a DL taxonomy, informal and formal analysis of case studies of Digital Libraries (NDLTD and OAI), and utilization as a formal basis for a DL description language.
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Visual Interfaces to Digital Libraries - A Lightweight Protocol between Digital Libraries and Visualization Systems
Lecture Notes in Computer Science, 2002Co-Authors: Rao Shen, Jun Wang, Edward A. FoxAbstract:A lightweight protocol, VIDI, is proposed to enhance the interoperability of Digital Libraries (DLs) and visualization systems (VIS). VIDI is related to the Open Digital Library project, which encourages a component-based approach to the construction of Digital Libraries, implemented by extending the Open Archives Initiative Protocol for Metadata Harvesting. VIDI adds in the concept of a registry of transformers to convert between common metadata and visualization formats. Design and implementation discussions of VIDI explain its feasibility, flexibility, and generality.
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open Digital Libraries
2002Co-Authors: Hussein Suleman, Edward A. FoxAbstract:Digital Libraries (DLs) are software systems specifically designed to assist users in information seeking activities. Stemming from the intersection of library sciences and computer networking, traditional DL systems impose library philosophies of structure and management on the sprawling collections of data that are made possible through the Internet. DLs evolve to keep pace with innovation on the Internet so there is little standardization in the architecture of such systems. However, in attempting to provide users with the highest possible levels of service with the minimum possible effort, many systems work collaboratively with others, e.g., meta-search engines. This type of system interoperability is encouraged by the emergence of simple data transfer protocols such as the Open Archives Initiative's Protocol for Metadata Harvesting (OAI-PMH). Open Digital Libraries are an extension of the work of the OAI. It is proposed in this dissertation that the philosophy and approach adopted by the OAT can easily be extended to support inter-component interaction within a componentized DL. In particular, DLs can be built by connecting small components that communicate through a family of lightweight protocols, using XML as the data interchange mechanism. In order to test the feasibility of this, a set of protocols was designed based on a generalization of the work of the OAT. Components adhering to these protocols were implemented and integrated into production and research DLs. These systems were then evaluated for simplicity, reusability, and performance. On the whole, this study has shown promise in the approach of applying the fundamental concepts of the OAT protocol to the task of DL component design and implementation. Further, it has shown the feasibility of building componentized DL systems using techniques that are a precursor to the Web Services approach to system design.
Lech Zieborak - One of the best experts on this subject based on the ideXlab platform.
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jeromedl adding semantic web technologies to Digital Libraries
Lecture Notes in Computer Science, 2005Co-Authors: Sebastian Ryszard Kruk, Stefan Decker, Lech ZieborakAbstract:In recent years more and more information has been made available on the Web. High quality information is often stored in dedicated databases of Digital Libraries, which are on their way to become expanding islands of well organized information. However, managing this information still poses challenges. The Semantic Web provides technologies that are about help to meet these challenges. In this article we present JeromeDL, a full fledged open-source Digital library system. We exemplify how Digital library content management can benefit from the Semantic Web. We define and evaluate browsing and searching features. We describe how the semantic descriptions of resources and users profiles improve the usability of a Digital library. We present how Digital Libraries can be interconnected into one heterogeneous database with use of semantic technologies.
Sebastian Ryszard Kruk - One of the best experts on this subject based on the ideXlab platform.
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semantic Digital Libraries
Semantic Digital Libraries 1st, 2009Co-Authors: Sebastian Ryszard Kruk, Bill McdanielAbstract:Libraries have always been an inspiration for the standards and technologies developed by semantic web activities. However, except for the Dublin Core specification, semantic web and social networking technologies have not been widely adopted and further developed by major Digital library initiatives and projects. Yet semantic technologies offer a new level of flexibility, interoperability, and relationships for Digital repositories. Kruk and McDaniel present semantic web-related aspects of current Digital library activities, and introduce their functionality; they show examples ranging from general architectural descriptions to detailed usages of specific ontologies, and thus stimulate the awareness of researchers, engineers, and potential users of those technologies. Their presentation is completed by chapters on existing prototype systems such as JeromeDL, BRICKS, and Greenstone, as well as a look into the possible future of semantic Digital Libraries. This book is aimed at researchers and graduate students in areas like Digital Libraries, the semantic web, social networks, and information retrieval. This audience will benefit from detailed descriptions of both todays possibilities and also the shortcomings of applying semantic web technologies to large Digital repositories of often unstructured data.
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jeromedl adding semantic web technologies to Digital Libraries
Lecture Notes in Computer Science, 2005Co-Authors: Sebastian Ryszard Kruk, Stefan Decker, Lech ZieborakAbstract:In recent years more and more information has been made available on the Web. High quality information is often stored in dedicated databases of Digital Libraries, which are on their way to become expanding islands of well organized information. However, managing this information still poses challenges. The Semantic Web provides technologies that are about help to meet these challenges. In this article we present JeromeDL, a full fledged open-source Digital library system. We exemplify how Digital library content management can benefit from the Semantic Web. We define and evaluate browsing and searching features. We describe how the semantic descriptions of resources and users profiles improve the usability of a Digital library. We present how Digital Libraries can be interconnected into one heterogeneous database with use of semantic technologies.
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Semantic Digital Libraries - Architecture of Semantic Digital Libraries
Semantic Digital Libraries, 1Co-Authors: Sebastian Ryszard Kruk, Adam Westerki, Ewelina KrukAbstract:The main motivation of this chapter was to gather existing requirements and solutions, and to present a generic architectural design of semantic Digital Libraries. This design is meant to answer a number of requirements, such as interoperability or ability to exchange resources and solutions, and set up the foundations for the best practices in the new domain of semantic Digital Libraries. We start by presenting the library from different high-level perspectives, i.e., user (see Sect. 2) and metadata (see Sect. 1) perspective; this overview narrows the scope and puts emphasis on certain aspects related to the system perspective, i.e., the architecture of the actual Digital library management system. We conclude by presenting the system architecture from three perspectives: top-down layered architecture (see Sect. 3), vertical architecture of core services (see Sect. 4), and stack of enabling infrastructures (see Sect. 5); based upon the observations and evaluation of the contemporary state of the art presented in the previous sections, these last three subsections will describe an in-depth model of the Digital library management system. From a high level perspective a semantic Digital library is the same as the usual Digital library [75]. Its purpose is to deliver particular content to a specific user using a given IT infrastructure system (see Fig. 1). We use the same concepts as presented by Fuhr et al. [75] to describe high level concepts of semantic Digital Libraries; the difference, however, is in the realization, behavior, and relations between particular components. Contemporary Libraries have to face new, more dynamic and more heterogeneous content; they also have to adapt to the requirements of new generations of users, especially the Generation Y (so called Internet Generation). The contemporary user, a person approaching the library, requires more from the library and has more expectations towards it; one of the reasons is that the users do not want to work in isolation, but rather a part of a
C. Lee Giles - One of the best experts on this subject based on the ideXlab platform.
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JCDL - Ranking authors in Digital Libraries
Proceeding of the 11th annual international ACM IEEE joint conference on Digital libraries - JCDL '11, 2011Co-Authors: Sujatha Das Gollapalli, Prasenjit Mitra, C. Lee GilesAbstract:Searching for people with expertise on a particular topic also known as expert search is a common task in Digital Libraries. Most models for this task use only documents as evidence for expertise while ranking people. In Digital Libraries, other sources of evidence are available such as a document's association with venues and citation links with other documents. We propose graph-based models that accommodate multiple sources of evidence in a PageRank-like algorithm for ranking experts. Our studies on two publicly-available datasets indicate that our model despite being general enough to be directly useful for ranking other types of objects performs on par with probabilistic models commonly used for expert ranking.
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Ranking authors in Digital Libraries
Proceeding of the 11th annual international ACM IEEE joint conference on Digital libraries - JCDL '11, 2011Co-Authors: Sujatha Das Gollapalli, Prasenjit Mitra, C. Lee GilesAbstract:Searching for people with expertise on a particular topic also known as expert search is a common task in Digital Libraries. Most models for this task use only documents as evidence for expertise while ranking people. In Digital Libraries, other sources of evidence are available such as a document's association with venues and citation links with other documents. We propose graph-based models that accommodate multiple sources of evidence in a PageRank-like algorithm for ranking experts. Our studies on two publicly-available datasets indicate that our model despite being general enough to be directly useful for ranking other types of objects performs on par with probabilistic models commonly used for expert ranking.
Enrique Herreraviedma - One of the best experts on this subject based on the ideXlab platform.
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a decision support system to develop a quality management in academic Digital Libraries
Information Sciences, 2015Co-Authors: Francisco Javier Cabrerizo, Javier Lopezgijon, Juan Antonio Morentemolinera, I J Perez, Enrique HerreraviedmaAbstract:Academic Digital Libraries are getting more benefit from the Web possibilities to help with teaching, learning and research activities. Because of it, more and more people use the services that they offer. Therefore, it is very important that the academic Digital Libraries provide a good service in order to satisfy the users' expectations. The aim of this paper is to present a decision support system assisting the staff of the academic Digital Libraries to make decisions in order to meet the users' needs and, in such a way, to increase the number of users utilizing them. To do so, the decision support system is composed of several decision rules which generate recommendations according to both objective and subjective criteria to improve the quality of the services offered by the academic Digital Libraries.
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a model based on fuzzy linguistic information to evaluate the quality of Digital Libraries
International Journal of Information Technology and Decision Making, 2010Co-Authors: Francisco Javier Cabrerizo, Javier Lopezgijon, A A Ruiz, Enrique HerreraviedmaAbstract:The Web is changing the information access processes and it is one of the most important information media. Thus, the developments on the Web are having a great influence over the developments on others information access instruments as Digital Libraries. As the development of Digital Libraries is to satisfy user need, user satisfaction is essential for the success of a Digital library. The aim of this paper is to present a model based on fuzzy linguistic information to evaluate the quality of Digital Libraries. The quality evaluation of Digital Libraries is defined using users' perceptions on the quality of Digital services provided through their Websites. We assume a fuzzy linguistic modeling to represent the users' perception and apply automatic tools of fuzzy computing with words based on the LOWA and LWA operators to compute global quality evaluations of Digital Libraries. Additionally, we show an example of application of this model where three Spanish academic Digital Libraries are evaluated by fifty users.
