Search (1215 results, page 2 of 61)

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Abstract

Feature on OCLC's SiteSearch suite of software, first introduced in 1992, and how it is helping over 250 libraries integrate and manage their electronic library collections. Describes the new features of version 4.0, released in Apr 1997, which include a new interface, Java based architecture, and an online documentation and training site. Gives an account of how Java is helping the Georgia Library Learning Online (GALILEO) project to keep pace on the WWW; the use of SiteSearch by libraries to customize their interface to electronic resources; and gives details of Project Athena (Assessing Technological Horizons to Educate the Nashville Area), which is using OCLC SiteSearch to allow area library users to search the holdings of public and university libraries simultaneously

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Abstract

The Wolverhampton Web Library (WWLib) is a WWW search engine that provides access to UK based information. The experimental version developed in 1995, was a success but highlighted the need for a much higher degree of automation. An interesting feature of the experimental WWLib was that it organised information according to DDC. Discusses the advantages of classification and describes the automatic classifier that is being developed in Java as part of the new, fully automated WWLib

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Abstract

As a powerful and radically new information medium, the World Wide Web has been embraced by libraries, as information centers par excellence, for its potential in effectively addressing patron needs. Because of the Web's rapid growth, librarians and other information professionals are developing a variety of solutions to bring the explosion of Web resources under control. While paradigmatic transformations like that taking place in the information industry today have become a tangible reality, information professionals are recognizing that only through the strategic redefining of the essential functions of libraries - selection, acquisition, organization, and access - will the transformative power of such change be harnessed most effectively. This paper attempts to characterize the conceptual 'playing field' of the current transformations taking place, and in so doing process a structural model of the relationship that libraries should develop to Internet-based resources. The tandem concepts of digital libraries and metadata are key components of this model, and the intent is to anchor them firmly within the organizational and managerial context of library administration. How we mentally structure and 'visualize' a library's role is the unfolding digital revolution is critical to the future of libraries as institutions. In visualizing this role, librarians should focus on the library's traditional functions and rethink these functions in the new digital environment. The two concepts hold the potential for fully integrating the essential functions of the library into the digital environment, and strategically centering the library for the critical role it should play in the coming digital society of the 21st century

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Abstract

Purpose - This paper provides an overview of activities in the field of virtual museums and considers a number of issues for which there are parallels in the field of digital libraries. Design/methodology/approach - Using a range of illustrative examples, we attempt to determine what defines a virtual museum on the one hand and a digital library disguised as a virtual museum on the other; when it makes sense for virtual museums to work in partnership with digital libraries, or draw on digital library research and development; and how the power of the digital environment might be harnessed to further the traditional values of the museum community. Findings - Finds that virtual museums and digital libraries have much in common and the boundaries between them are increasingly blurred. The provision of object-level metadata, needed to realise the wider potential of the digital environment to enhance and extend the traditional museum experience, gives rise to a number of issues which are shared by libraries and for which shared approaches would be beneficial. In particular, collaboration between the museum and library communities is essential if solutions to the problems of cross-domain searching are to be found and its potential to facilitate new knowledge creation fully exploited. However, any collaborative approach must take into account the differences, as well as the similarities, between the two communities, as these differences are fundamental and defining. Originality/value - The paper will be of interest to museum, library and other information professionals, and particularly those developing distributed and/or cross-domain digital collections.

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Abstract

Purpose - The purpose of this paper is to claim that it is useful to assess the web connectivity of research groups, describe hyperlink-based techniques to achieve this and present brief details of European life sciences research groups as a case study. Design/methodology/approach - A commercial search engine was harnessed to deliver hyperlink data via its automatic query submission interface. A special purpose link analysis tool, LexiURL, then summarised and graphed the link data in appropriate ways. Findings - Webometrics can provide a wide range of descriptive information about the international connectivity of research groups. Research limitations/implications - Only one field was analysed, data was taken from only one search engine, and the results were not validated. Practical implications - Web connectivity seems to be particularly important for attracting overseas job applicants and to promote research achievements and capabilities, and hence we contend that it can be useful for national and international governments to use webometrics to ensure that the web is being used effectively by research groups. Originality/value - This is the first paper to make a case for the value of using a range of webometric techniques to evaluate the web presences of research groups within a field, and possibly the first "applied" webometrics study produced for an external contract.

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Abstract

This is the first study that evaluated the coverage of journals from Africa in Web of Science, Scopus, and CrossRef. A list of active journals published in each of the 55 African countries was compiled from Ulrich's periodicals directory and African Journals Online (AJOL) website. Journal master lists for Web of Science, Scopus, and CrossRef were searched for the African journals. A total of 2,229 unique active African journals were identified from Ulrich (N = 2,117, 95.0%) and AJOL (N = 243, 10.9%) after removing duplicates. The volume of African journals in Web of Science and Scopus databases is 7.4% (N = 166) and 7.8% (N = 174), respectively, compared to the 45.6% (N = 1,017) covered in CrossRef. While making up only 17.% of all the African journals, South African journals had the best coverage in the two most authoritative databases, accounting for 73.5% and 62.1% of all the African journals in Web of Science and Scopus, respectively. In contrast, Nigeria published 44.5% of all the African journals. The distribution of the African journals is biased in favor of Medical, Life and Health Sciences and Humanities and the Arts in the three databases. The low representation of African journals in CrossRef, a free indexing infrastructure that could be harnessed for building an African-centric research indexing database, is concerning.

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Abstract

Presents a Guided tour system for the WWW, called Ariadne, which implements the ideas of trails and guided tours, originating from the hypertext field. Ariadne appears as a Java applet to the user and it stores guided tours in a database format separated from the WWW documents included in the tour. Itd main advantages are: an independent user interface which does not affect the layout of the documents being part of the tour, branching tours where the user may follow alternative routes, composition of existing tours into aggregate tours, overview map with indication of which parts of a tour have been visited an support for getting back on track. Ariadne is available as a research prototype, and it has been tested among a group of university students as well as casual users on the Internet

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Abstract

This book provides a quick, concise guide to the issues surrounding the preparation of a well-designed, professional web site using HTML. Topics covered include: how to plan your web site effectively, effective use of hypertext, images, audio and video; layout techniques using tables and and list; how to use style sheets, font sizes and plans for mathematical equation make up. Integration of CGI scripts, Java and ActiveX into your web site is also discussed

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Abstract

Explains how the Intranet (in effect an Internet limited to the computer systems of a single organization) developed out of the Internet, and what its uses and advantages are. Focuses on the Intranet developed in the Glaxo Wellcome organization. Briefly discusses a number of technologies in development, e.g. Java, Real audio, 3D and VRML, and summarizes the issues involved in the successful development of the Intranet, that is, bandwidth, searching tools, security, and legal issues

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Abstract

Gives an overview of Web information system development. Discusses some basic concepts and technologies such as HTML, HTML FORM, CGI and Java, which are associated with developing WWW information systems. Further discusses the design and implementation of Virtual Travel Mart, a Web based end user oriented travel information system. Finally, addresses some issues in developing WWW information systems

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Abstract

Ameritech Library Services has released Dynix WebPac on NT, which provides access to a Dynix catalogue from any Java compatible Web browser. Users can place holds, cancel and postpone holds, view and renew items on loan and sort and limit search results from the Web. Describes some of the other features of Dynix WebPac

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Abstract

OCLC has announced that 6 library systems have completed field tests of the OCLC SiteSearch 4.0 suite of software, paving its way for release. Traces the beta site testing programme from its beginning in November 1997 and notes that OCLC SiteServer components have been written in Java programming language which will increase libraries' ability to extend the functionality of the SiteSearch software to create new features specific to local needs

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Abstract

Demonstrates a new method of providing networked computer assisted learning to avoid the pitfalls of traditional methods. This was achieved using Web pages enhanced with Java applets, MPEG video clips and Dynamic HTML

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Object

Java

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Content

"Fünf Jahre nach seiner Gründung ist Google zum Herz des weltweiten Computernetzes geworden. Mit seiner Konzentration aufs Wesentliche hat die Suchmaschine alle anderen Anbieter weit zurück gelassen. Aber Google kann viel mehr, als im Web nach Texten und Bildern zu suchen. Gesammelt und aufbereitet werden auch Beiträge in Diskussionsforen (Newsgroups), aktuelle Nachrichten und andere im Netz verfügbare Informationen. Wer sich beim "Googeln" darauf beschränkt, ein einziges Wort in das Suchformular einzutippen und dann die ersten von oft mehreren hunderttausend Treffern anzuschauen, nutzt nur einen winzigen Bruchteil der Möglichkeiten. Wie man Google bis zum letzten ausreizt, haben Tara Calishain und Rael Dornfest in einem bislang nur auf Englisch veröffentlichten Buch dargestellt (Tara Calishain/Rael Dornfest: Google Hacks", www.oreilly.de, 28 Euro. Die wichtigsten Praxistipps kosten als Google Pocket Guide 12 Euro). - Suchen mit bis zu zehn Wörtern - Ihre "100 Google Hacks" beginnen mit Google-Strategien wie der Kombination mehrerer Suchbegriffe und enden mit der Aufforderung zur eigenen Nutzung der Google API ("Application Programming Interface"). Diese Schnittstelle kann zur Entwicklung von eigenen Programmen eingesetzt werden,,die auf die Google-Datenbank mit ihren mehr als drei Milliarden Einträgen zugreifen. Ein bewussteres Suchen im Internet beginnt mit der Kombination mehrerer Suchbegriffe - bis zu zehn Wörter können in das Formularfeld eingetippt werden, welche Google mit dem lo-gischen Ausdruck "und" verknüpft. Diese Standardvorgabe kann mit einem dazwischen eingefügten "or" zu einer Oder-Verknüpfung geändert werden. Soll ein bestimmter Begriff nicht auftauchen, wird ein Minuszeichen davor gesetzt. Auf diese Weise können bei einer Suche etwa alle Treffer ausgefiltert werden, die vom Online-Buchhändler Amazon kommen. Weiter gehende Syntax-Anweisungen helfen ebenfalls dabei, die Suche gezielt einzugrenzen: Die vorangestellte Anweisung "intitle:" etwa (ohne Anführungszeichen einzugeben) beschränkt die Suche auf all diejenigen Web-Seiten, die den direkt danach folgenden Begriff in ihrem Titel aufführen. Die Computer von Google bewältigen täglich mehr als 200 Millionen Anfragen. Die Antworten kommen aus einer Datenbank, die mehr als drei Milliarden Einträge enthält und regelmäßig aktualisiert wird. Dazu Werden SoftwareRoboter eingesetzt, so genannte "Search-Bots", die sich die Hyperlinks auf Web-Seiten entlang hangeln und für jedes Web-Dokument einen Index zur Volltextsuche anlegen. Die Einnahmen des 1998 von Larry Page und Sergey Brin gegründeten Unternehmens stammen zumeist von Internet-Portalen, welche die GoogleSuchtechnik für ihre eigenen Dienste übernehmen. Eine zwei Einnahmequelle ist die Werbung von Unternehmen, die für eine optisch hervorgehobene Platzierung in den GoogleTrefferlisten zahlen. Das Unternehmen mit Sitz im kalifornischen Mountain View beschäftigt rund 800 Mitarbeiter. Der Name Google leitet sich ab von dem Kunstwort "Googol", mit dem der amerikanische Mathematiker Edward Kasner die unvorstellbar große Zahl 10 hoch 100 (eine 1 mit hundert Nullen) bezeichnet hat. Kommerzielle Internet-Anbieter sind sehr, daran interessiert, auf den vordersten Plätzen einer Google-Trefferliste zu erscheinen.
Da Google im Unterschied zu Yahoo oder Lycos nie ein auf möglichst viele Besuche angelegtes Internet-Portal werden wollte, ist die Suche in der Datenbank auch außerhalb der Google-Web-Site möglich. Dafür gibt es zunächst die "Google Toolbar" für den Internet Explorer, mit der dieser Browser eine eigene Leiste, für die Google-Suche erhält. Freie Entwickler bieten im Internet eine eigene Umsetzung: dieses Werkzeugs auch für den Netscape/ Mozilla-Browser an. Daneben kann ein GoogleSucheingabefeld aber auch auf die eigene WebSeite platziert werden - dazu sind nur vier Zei-len HTML-Code nötig. Eine Google-Suche zu starten, ist übrigens auch ganz ohne Browser möglich. Dazu hat das Unternehmen im Aprilvergangenen Jahres die API ("Application Programming Interface") frei gegeben, die in eigene Programme' eingebaut wird. So kann man etwa eine Google-Suche mit einer E-Mail starten: Die Suchbegriffe werden in die Betreff Zeile einer ansonsten leeren EMail eingetragen, die an die Adresse google@capeclear.com geschickt wird. Kurz danach trifft eine automatische Antwort-Mail mit den ersten zehn Treffern ein. Die entsprechenden Kenntnisse vorausgesetzt, können Google-Abfragen auch in Web-Services eingebaut werden - das sind Programme, die Daten aus dem Internet verarbeiten. Als Programmiertechniken kommen dafür Perl, PHP, Python oder Java in Frage. Calishain und Dornfest stellen sogar eine Reihe von abgedrehten Sites vor, die solche Programme für abstrakte Gedichte oder andere Kunstwerke einsetzen."

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Abstract

Discusses the development of Campus Wide Information Systems with reference to the work of Leuven University Library. A 4th phase can now be distinguished in the evolution of CWISs as they evolve towards Intranets. WWW technology is applied to organise a consistent interface to different types of information, databases and services within an institution. WWW servers now exist via which queries and query results are translated from the Web environment to the specific database query language and vice versa. The integration of Java will enable programs to be executed from within the Web environment. Describes each phase of CWIS development at KU Leuven

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Abstract

Describes 2 research projects aimed at studying the parallel issues of image and video indexing, information retrieval and manipulation: VisualSEEK, a content based image query system and a Java based WWW application supporting localised colour and spatial similarity retrieval; and CVEPS (Compressed Video Editing and Parsing System) which supports video manipulation with indexing support of individual frames from VisualSEEK and a hierarchical new video browsing and indexing system. In both media forms, these systems address the problem of heterogeneous unconstrained collections

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Abstract

Discusses various structural searching methods available on the Web. some databases such as the Brookhaven Protein Database use keyword searching which does not provide the desired substructure search capabilities. Others like CS ChemFinder and MDL's Chemscape use graphical plug in programs. Although plug in programs provide more capabilities, users first have to obtain a copy of the programs. Due to this limitation, Tripo's WebSketch and ACD Interactive Lab adopt a different approach. Using JAVA applets, users create and display a structure query of the molecule on the web page without using other software. The new technique is likely to extend itself to other electronic publications

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Abstract

Describes the work undertaken by the Wiliam Blake Archive, Virginia University, to document the metadata tools for handling digital images of illustrations accompanying Blake's work. Images are encoded in both JPEG and TIFF formats. Image Documentation (ID) records are slotted into that portion of the JPEG file reserved for textual metadata. Because the textual content of the ID record now becomes part of the image file itself, the documentary metadata travels with the image even it it is downloaded from one file to another. The metadata is invisible when viewing the image but becomes accessible to users via the 'info' button on the control panel of the Java applet

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Abstract

This paper describes a graphical interface for the navigation and construction of faceted thesauri that is based on formal concept analysis. Each facet of a thesaurus is represented as a mathematical lattice that is further subdivided into components. Users can graphically navigate through the Java implementation of the interface by clicking on terms that connect facets and components. Since there are many applications for thesauri in the knowledge representation field, such a graphical interface has the potential of being very useful