Search (16 results, page 1 of 1)

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Abstract

We present a general framework for cross-media annotation that can be used to support the many different forms and uses of annotation. Specifically, we discuss the need for digital annotation of printed materials and describe how various technologies for digitally augmented paper can be used in support of work practices. The state of the art in terms of both commercial and research solutions is described in some detail, with an analysis of the extent to which they can support both the writing and reading activities associated with annotation. Our framework is based on an extension of the information server that was developed within the Paper++ project to support enhanced reading. It is capable of handling both formal and informal annotation across printed and digital media, exploiting a range of technologies for information capture and display. A prototype demonstrator application for mammography is presented to illustrate both the functionality of the framework and the status of existing technologies.

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Content

This article reports an applied research on the construction and implementation of a semantically structured conceptual prototype to help in the organization and representation of human knowledge in hypertextual systems, based on four references: the Facet Analysis Theory (FAT), the Conceptual Map Theory, semantic structure of hypertext links and the technical guidelines of the Associacao Brasileira de Normas Técnicas (ABNT). This prototype, called Modelo Hipertextual para Organizacao de Documentos (MHTX) - Model For Hypertext Organization of Documents HTXM - is formed by a semantic structure called Conceptual Map (CM) and Expanded Summary (ES), the latter based on the summary of a selected doctoral thesis to which access points were designed. In the future, this prototype maybe used to implement a digital libraty called BTDECI - UFMG (Biblioteca de Teses e Dissertacöes do Programa de Pós-Graduacao da Escola de Ciência da Informacao da UFMG - Library of Theses and Dissertations of the Graduate Program of School of Information Science of Universidade Federal de Minas Gerais).

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Abstract

This paper introduces the notion of physical hypermedia, addressing the problem of organizing material in mixed digital and physical environments. Based on empirical studies, we propose concepts for collectional actions and meta-data actions, and present prototypes combining principles from augmented reality and hypermedia to support organization of mixtures of digital and physical materials. Our prototype of a physical hypermedia system is running on an augmented architect's desk and digital walls utilizing Radio Frequency Identifier (RFID) tags as well as visual tags tracked by cameras. It allows users to tag physical materials, and have these tracked by readers (antennas) that may become pervasive in our work environments. In the physical hypermedia system, we work with three categories of RFID tags: simple object tags, collectional tags, and tooltags invoking operations such as grouping and linking of physical material. In addition, we utilize visual ARToolKit tags for linking and navigating 3D models on a physical desk. Our primary application domain is architecture and design, and so we discuss the use of augmented collectional artifacts primarily for this domain.

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Abstract

Purpose - The purpose of this paper is to explore the application of post-structuralist theory to understanding hypertext and the World Wide Web, and the challenge posed by digital information technology to the practices of the information profession. Design/methodology/approach - The method adopted is that of a critical study. Findings - The paper argues for the importance of post-structuralism for an understanding of the implications of digital information for the information management profession. Originality/value - Focuses on an epistemological gap between the traditional practices of the information profession, and the structure of the World Wide Web.

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Abstract

Textbooks are more available in electronic format now than in the past. Because textbooks are typically large, the end user needs effective tools to rapidly access information encapsulated in textbooks stored in digital libraries. Statistical similarity-based links among hypertextbooks are a means to provide those tools. In this paper, the design and the implementation of a tool that generates networks of links within and across hypertextbooks through a completely automatic and unsupervised procedure is described. The design is based an statistical techniques. The overall methodology is presented together with the results of a case study reached through a working prototype that shows that connecting hyper-textbooks is an efficient way to provide an effective retrieval capability.

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Abstract

The first part of the chapter presents a synthesis of recent works in the domain of hyperbooks and introduces a general hyperbook model. In this model, a hyperbook is made of a knowledge structure, a set of informational fragment, links between the fragments and the knowledge structure, and a user interface specification. This specification is used to generate the actual reading interface which is a hypertext whose nodes and links are derived from the knowledge and fragment structures. The knowledge structure provides a mean to interconnect different hyperbooks in a semantically consistent way, so as to create digital libraries of hyperbooks. The second part explains in more details the knowledge structure alignment process that is at the heart of the semantic interconnection of hyper-books. The presentation is based on a real-world example, in the domain of agriculture. It also provides experimental results about the performance, in terms of precision and recall, of this process.

Source

Semantic digital libraries. Eds.: S.R. Kruk, B. McDaniel

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Abstract

Hypertext Handbook provides a condensed and straightforward introduction to the main issues, concepts, and developments in both the application of hypertext technology and its interpretation by the academic community. It offers a concise history of the medium in a manner that will help readers to better understand contemporary directions in digital media technology. Hypertext Handbook provides a comprehensive guide to this complex concept and is designed to inform and inspire students and scholars alike.

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Abstract

The Ambient Wood project, carried out as part of the Equator project, set out to provide an augmented learning experience for children in an outdoor environment. Using a variety of devices, the children gathered information about the woodland habitats performing basic scientific enquiry and hypothesis testing. In this paper, we describe the supporting information infrastructure used in the project, focusing on how hypermedia tools and techniques were used to structure and deliver the information to the children, helping to orchestrate the learning activities.

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Source

Encyclopedia of library and information science. Vol.66, [=Suppl.29]

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Abstract

Examines the concept of hypertext and how it relates to the World Wide Web, along with a discussion of why this is important to librarians. Includes examples of library Web pages and products that take advantage of the medium and some that do not, along with a specific discussion of crafting text, structure and linking for the Web.

Source

Library hi tech. 20(2002) no.3, S.325-339

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Abstract

The paradigm shift from the old system centered view to a user centered approach involves new tools needed for accessing library resources under the condition that the user's needs are taken into account. An end-user, who has only a little knowledge of classification systems or thesauri, understands little of the mode of the representation of contents and the use of authority lists. In addition, he will have difficulty in formulating his question in a precise manner. He needs to know better what the library proposes in order to define of what use it would be for him. Many studies have been carried out on the use of controlled vocabularies (classification, authority lists, thesauri) as searching devices. It is surprising to find that relatively little attention has been given to the role of these tools in filtering and browsing processes. We have developed a prototype named CATHIE (CATalog Hypertextuel Interactif et Enrichi) that supports such filtering and interactive reformulation features

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Source

Encyclopedia of library and information sciences. 3rd ed. Ed.: M.J. Bates

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Date

22. 3.2009 12:51:47

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Date

12. 8.2012 18:05:22

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Content

Der erste Hauptteil 'Um 1800' versucht daraufhin, mit einem Bruch in der Anwendungsweise des Gessnerschen Verfahrens dessen erste Diskontinuität nachzuweisen. Nicht zuletzt wegen dieses Einschnitts muß die Art der Verzeichnung bis dato das Attribut vorläufig tragen. Die Verzettelungstechnik gelangt von einem temporären Gebrauch zur dauerhaften Verwendung, was dadurch eine ebenso unbeabsichtigte wie folgenreiche Umstellung markiert. Gleichzeitig entsteht hiermit der bibliothekshistorisch erste Zettelkatalog, dessen unverhoffter Einsatz und Genese in Wien um 1780 eine detaillierte Beschreibung erfährt. Der Zettelkatalog besteht nicht nur als bibliothekarische Antwort auf einen drohenden information overflow, sondern vor allem dank seiner umsichtigen Logistik. Entscheidend dabei sind schriftlich fixierte, genaue Handlungsanweisungen, anhand derer auch unausgebildetes Personal in den arbeitsteiligen Prozeß eingebunden werden kann. Mit Hilfe eines kleinen Exkurses soll zuvor jedoch die Koinzidenz zweier Adressierungslogiken untersucht werden: In einem Jahrzehnt und derselben Stadt fällt die Entstehung des Zettelkatalogs zusammen mit der Erfindung der Hausnummer. Damit etabliert sich eine Möglichkeit zur abstrakteren Repräsentation und zu einem kontrollierenden Zugriff auf Schriften bzw. Hausbewohner. Das anschließende dritte Kapitel verbleibt in der Umbruchphase um 1800, indem es eine notwendige Differenz zieht zwischen der Bibliothekstechnologie von vielen Schreib- für viele Lese-Köpfe und einer eigenwilligen Anordnung von gelehrten Exzerptensammlungen. Die Unterscheidung trennt ein Server-Konzept von einer Workstation-Philosophie. Der erste Zettelkatalog ist nicht nur das Produkt eines kollektiven Arbeitsprozesses, sondern vor allem für eine vielköpfige Benutzung geeignet und konzipiert. Im Gegensatz zu diesem Multi-User-System verwehrt die idiosynkratische Maschine in Form eines Gelehrtenkastens gerade jede fremde Einsichtnahme. Sie besitzt keine Vermittlungsnotwendigkeit, so daß sich das interne System der Verzeichnung durchaus unverständlich für alle Einsichtnehmenden ausnehmen darf. Auch eine Form von Datenschutz, die anhand der eigentümlichen gelehrten Exzerpiertechniken in einer kleinen Genealogie von Johann Jacob Moser bis zu Jean Paul und anderen konturiert wird. Das vierte und letzte Kapitel des ersten Teils widmet sich einer ersten Übertragung alteuropäischer Bibliothekstechnik in die Neue Welt. Das Zettelkastenprinzip erreicht einerseits die amerikanische Ostküste durch Bibliothekare, die in Europa studieren, um die dort etablierte Praxis der Katalogisierung auf ihre im Laufe des 19. Jahrhunderts schnell anwachsenden Büchersammlungen anzuwenden. Andererseits jedoch besitzen die Vereinigten Staaten auch eine eigene, autochthone Genealogie der Verzettelung. 1817 gelingt William Croswell bei seinem unglücklichen Projekt, der Harvard College Library einen umfassenden Katalog zu verschaffen, die Geburt des amerikanischen Zettelkatalogs aus dem Geiste der Faulheit.
Der zweite Hauptteil 'Um 1900' fokussiert den diskursiven Übertrag zwischen Bibliothek und Büro, der wiederum nicht von europäischen Bibliotheken ausgeht. Während diese noch ganz dem Streit um Katalog vs. Aufstellung verhaftet sind, gereicht die Initiative und Aufbruchstimmung um die amerikanische Bibliothekarsvereinigung und namentlich in Gestalt ihres Protagonisten Melvil Dewey zum Ausgangspunkt des wirkungsmächtigen Technologietransfers zwischen den Institutionen der Wissensverwaltung und der Wirtschaft. Schaltstelle dafür ist ein Gebilde, das nicht nur die Zielrichtung der institutionellen Übertragung bereits im eigenen Namen trägt, sondern sich überdies vom Ein-Mann-Betrieb zu einem Konzern entwickelt: das Library Bureau. Das sechste Kapitel verschreibt sich den Agenturen einer wiederum europäischen Verbreitung dieser Speichertechnologie, d.h. es gilt der Frage nachzugehen, welche Institutionen das Wissen um den Einsatz eines Zettelkatalogs und seiner Prämissen - allen voran weitestgehende Standardisierung - aufnehmen, um es als unabdingbare Grundlage der eigenen Arbeit zu lancieren. Im siebten und letzten Kapitel koppelt schließlich das Verfahren, listengesteuerte Verwaltungen auf Zettelbasis zu führen, an den organisatorischen Diskurs einer Arbeitswissenschaft an, die den Zettelkatalog als wirtschaftliche Optimierungsinstanz entdeckt und unter dem Namen Kartei zu einem vorrangigen Rationalisierungsinstrument entwickelt. Auf der Suche nach der ökonomischen Zeit, die mit der Rationalisierungsbewegung um 1920 große Aufmerksamkeit erfährt, versprechen sich die Verfechter der modernen Büroorganisation vom Zettelkasten als Stapelverarbeitung einhellig großen Gewinn, so daß eine schlichte, einstmalige Bibliothekstechnik zum neuen Paradigma einer buchhalterischen Arbeitsweise gerät. Am Ende dieser Geschichte steht ein Medienwechsel, der die Kartei als neuen Kulturträger propagiert, um das Buch zu verabschieden. Diese Studie, deren Raster bislang implizit mit dem Shannonschen Kommunikationsmodell skizziert wurde und darauf auch im weiteren Verlauf mit der Rede von Kanälen (und Strömen) rekurrieren wird, folgt diesem Modell ebenso in der dritten Instanz der Übertragung, der Störquelle zwischen Sender und Empfänger, um letztlich zu dem Schluß zu gelangen, daß das Rauschen recht behält: Diese Arbeit möchte daher immer auch die Momente der Irritation beobachten, die Störquellen, die eine Übertragung gefährden, die ein Risiko ins Spiel mit den Karten bringen. In welcher Position ist diese Stockung zu verorten? Mit welchen Sicherungsmaßnahmen gelingt es beispielsweise, der informationellen Entropie der Kartei, ihrem irreversiblen Durcheinander der Karten einstweilen Einhalt zu gebieten? An welchen neuralgischen Punkten finden Störungen immer wieder ihren Einsatz, um bisweilen nachhaltig die Übertragungen zu unterbrechen und ihrem Ende zuzuführen? Denn es scheint unvermeidlich, die Historie der Kartei als eine Geschichte des mannigfachen Scheiterns zu lesen. Die diskursiven Übertragungen, die Transfers zwischen den Institutionen und auch die Übertragung von Informationen innerhalb der Kartei-Anordnung sowie deren Implikationen konfigurieren gemeinsam die Geschichte der Kartei. Die vorliegende Arbeit will versuchen, diese Geschichte vom Material her zu schreiben. Das heißt zunächst, viele Stimmen zur Sprache kommen zu lassen, obgleich stets die Gefahr der unstimmigen Polyphonie droht. Ein schief singender Chor. Doch da die Aufgabe darin bestehen soll, Episoden einer Anordnung aus Zetteln und ihren jeweiligen Verknüpfungen zu verknüpfen, vertraut diese Studie dem Dispositiv für einmal und notiert das, was ihr der Zettelkasten diktiert.