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Since the publication of the second book in this series (Ally and Needham, 2010) the field of mobile service delivery has matured considerably and is transforming how libraries operate. Mobile devices have become ubiquitous and li...
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Since the publication of the second book in this series (Ally and Needham, 2010) the field of mobile service delivery has matured considerably and is transforming how libraries operate. Mobile devices have become ubiquitous and libraries around the world have begun to engage with the opportunities they offer - some in experimental mode and some as mainstream services. Advances in technology present both challenges and opportunities. The contents of this latest book reflect the variety of approaches being taken and present a rich panoply of experiences from many corners of the globe -21 chapters from 11 countries as far apart as Spain and New Zealand, India and Japan, South Africa and the USA.
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With the rapid development of on-line information services, information technologies for on-line information processing have been receiving much attention recently. Clustering plays important roles in various on-line applications ...
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With the rapid development of on-line information services, information technologies for on-line information processing have been receiving much attention recently. Clustering plays important roles in various on-line applications such as extraction of useful information from news feeding services and selection of relevant documents from the incoming scientific articles in digital libraries. In on-line environments, users generally have interests on newer documents than older ones and have no interests on obsolete old documents. Based on this observation, we propose an on-line document clustering method F{sup}2ICM ( Forgetting-Factor-based Incremental Clustering Method) that incorporates the notion of a forgetting factor to calculate document similarities. The idea is that every document gradually losses its weight (or memory) as time passes according to this factor. Since F{sup}2ICM generates clusters using a document similarity measure based on the forgetting factor, newer documents have much effects on the resulting cluster structure than older ones. In this paper, we present the fundamental idea of the F{sup}2ICM method and describe its details such as the similarity measure and the clustering algorithm. Also, we show an efficient incremental statistics maintenance method of F{sup}2ICM which is indispensable for on-line dynamic environments.
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Using Nielsen's Heuristic Evaluation, this paper reports a user study with six usability-trained subjects to evaluate PAPER'S access features in assisting users to retrieve information efficiently, part of an on-going design partn...
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Using Nielsen's Heuristic Evaluation, this paper reports a user study with six usability-trained subjects to evaluate PAPER'S access features in assisting users to retrieve information efficiently, part of an on-going design partnership with stakeholders and designers/developers. PAPER (Personalised Adaptive Pathways for Exam Resources) is an improved version evolving from an earlier implementation of GeogDL built upon G-Portal, a geospatial digital library infrastructure. After two initial evaluations with student and teacher design partners, PAPER has evolved into a system containing a new bundle of personalized, interactive services with four modules: mock exam; personal coach (practice and review); trend analysis and performance review. This paper highlights lessons learnt in the design of PAPER using Nielsen's heuristics, and discusses implications for the design of access features in digital libraries in general.
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Federated digital libraries are composed of distributed, autonomous, and often heterogeneous information services but provide users with a transparent, integrated view of collected information. In this paper we discuss a federated...
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Federated digital libraries are composed of distributed, autonomous, and often heterogeneous information services but provide users with a transparent, integrated view of collected information. In this paper we discuss a federated system for the Networked Digital Library of Theses and Dissertations (NDLTD), an international consortium of universities, libraries, and other supporting institutions focused on electronic theses and dissertations (ETDs). Federation requires dealing flexibly with differences among systems, ontologies, and data formats while respecting information sources' autonomy. Our solution involves adapting the object-oriented digital library system MARIAN to serve as mediation middleware for the federated NDLTD collection. Components of the solution include: 1) the use and integration of several harvesting techniques; 2) an architecture based on object-oriented ontologies of search modules and metadata; 3) reconciliation of diversity within the harvested data joined to a single collection view for the user; and 4) an integrated framework for addressing such questions as data quality, flexible and efficient search, and scalability.
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In this paper we present NewsInEssence, a fully deployed digital news system. A user selects a current news story of interest which is used as a seed article by NewsInEssence to find in real time other related stories from a large...
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In this paper we present NewsInEssence, a fully deployed digital news system. A user selects a current news story of interest which is used as a seed article by NewsInEssence to find in real time other related stories from a large number of news sources. The output is a single document summary presenting the most salient information gleaned from the different sources. We discuss the algorithm used by NewsInEssence, module interoperability, and conclude the paper with a number of empirical analyses.
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In this paper we present an interactive tool for policy-based merging of resource-classifying networks (RCNs). We motivate our approach by identifying several merge scenarios within organizations and discuss their individual requi...
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In this paper we present an interactive tool for policy-based merging of resource-classifying networks (RCNs). We motivate our approach by identifying several merge scenarios within organizations and discuss their individual requirements on RCN merge support. The quality-controlled merging of RCNs integrates the contributions from different authors, fostering synergies and the achievement of common goals. The C-Merge tool design is based on a generalized view of the merge process and a simple but flexible model of RCNs. The tool is policy-driven and supports a variable degree of automation. Powerful options for user interaction and expressive change visualization enable substantial user support as well as effective quality control for the merge process.
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This paper proposes an approach to the problem of generating metadata for composite mixed-media digital objects by appropriately combining and exploiting existing knowledge or metadata associated with the individual atomic compone...
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This paper proposes an approach to the problem of generating metadata for composite mixed-media digital objects by appropriately combining and exploiting existing knowledge or metadata associated with the individual atomic components which comprise the composite object. Using a distributed collection of multimedia learning objects, we test this proposal by investigating mechanisms for capturing, indexing, searching and delivering digital online presentations using SMIL (Synchronized Multimedia Integration Language). A set of tools have been developed to automate and streamline the construction and fine-grained indexing of a distributed library of digital multimedia presentation objects by applying SMIL to lecture content from both the University of Qld and Cornell University. Using temporal information which is captured automatically at the time of lecture delivery, the system can automatically synchronize the video of a lecture with the corresponding Powerpoint slides to generate a finely-indexed presentation at minimum cost and effort. This approach enables users to search and retrieve relevant streaming video segments of the lecture based on keyword or free text searches within the slide content. The underlying metadata schema, the metadata processing/generation tools, distributed archive, backend database and the search, browse and playback interfaces which comprise the system are also described in this paper. We believe that the relatively low cost and high speed of development of this apparently sophisticated multimedia archive with rich search capabilities, provides evidence to support the validity of our initial proposal.
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Analogous to the meta-data that composes "data about the data" for library/information collections, there is a growing interest in employment of "bits about the bits" for compressed audio and video documents. The idea is to provid...
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Analogous to the meta-data that composes "data about the data" for library/information collections, there is a growing interest in employment of "bits about the bits" for compressed audio and video documents. The idea is to provide content description, or meta-data, of compressed multimedia documents, so that users could make use of such description to search and retrieve multimedia data/documents, as they do with Dublin Core bibliographic information to library collections. An ongoing endeavor undertaken by the Motion Picture Expert Group (MPEG) is to call for a new international standard, known as MPEG-7. When it is finalized in 2001, MPEG-7 is expected to provide standardized schemes for concise and unambiguous multimedia content description for different types of multimedia data/documents in a wide range of applications. Such content description should be denoted in the standardized description language, so as to support machine parsing and interoperability. In this paper, we report our recent work related to MPEG-7. We will present the Multimedia Description Definition Language (MD~2L), which provides a set of formal notation for defining Description Scheme Definition (DSD) for various types of media data such as audio, video, and etc. We will also discuss our on-going implementation of Java-based mechanisms for parsing and indexing/searching MD~2L description.
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Analogous to the meta-data that composes "data about the data" for library/information collections, there is a growing interest in employment of "bits about the bits" for compressed audio and video documents. The idea is to provid...
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Analogous to the meta-data that composes "data about the data" for library/information collections, there is a growing interest in employment of "bits about the bits" for compressed audio and video documents. The idea is to provide content description, or meta-data, of compressed multimedia documents, so that users could make use of such description to search and retrieve multimedia data/documents as they do with Dublin Core bibliographic information to library collections. An ongoing endeavor undertaken by the Motion Picture Expert Group (MPEG) is to call for a new international standard known as MPEG-7. When it is finalized in 2001, MPEG-7 is expected to provide standardized schemes for concise and unambiguous multimedia content description for different types of multimedia data/documents in a wide range of applications. Such content description should be denoted in the standardized description language, so as to support machine parsing and interoperability. We report our recent work related to MPEG-7. We present the Multimedia Description Definition Language (MD/sup 2/L), which provides a set of formal notations for defining Description Scheme Definition (DSD) for various types of media data such as audio, video, etc. We also discuss our on-going implementation of Java based mechanisms for parsing and indexing/searching MD/sup 2/L description.
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Analogous to the meta-data that composes "data about the data" for library/information collections, there is a growing interest in employment of "bits about the bits" for compressed audio and video documents. The idea is to provid...
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Analogous to the meta-data that composes "data about the data" for library/information collections, there is a growing interest in employment of "bits about the bits" for compressed audio and video documents. The idea is to provide contentdescription, or meta-data, of compressed multimedia documents, so that users could make use of such description to search and retrieve multimedia data/documents, as they do with Dublin Core bibliographic information to library collections. An ongoingendeavor undertaken by the Motion Picture Expert Group (MPEG) is to call for a new international standard, known as MPEG-7. When it is finalized in 2001, MPEG-7 is expected to provide standardized schemes for concise and unambiguous multimedia contentdescription for different types of multimedia data/documents in a wide range of applications. Such content description should be denoted in the standardized description language, so as to support machine parsing and interoperability. In this paper, wereport our recent work related to MPEG-7. We will present the Multimedia Description Definition Language (MD{sup}2L), which provides a set of formal notation for defining Description Scheme Definition (DSD) for various types of media data such as audio,video, and etc. We will also discuss our on-going implementation of Java-based mechanisms for parsing and indexing/searching MD{sup}2L description.
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