-
Gardner, T.; Iannella, R.: Architecture and software solutions (2000)
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- Abstract
- The current subject gateways have evolved over time when the discipline of Internet resource discovery was in its infancy. This is reflected by the lack of well-established, light-weight, deployable, easy-to-use, standards for metadata and information retrieval. We provide an introduction to the architecture, standards and software solutions in use by subject gateways, and to the issues that must be addressed to support future subject gateways
- Date
- 22. 6.2002 19:38:24
- Source
- Online information review. 24(2000) no.1, S.35-39
- Theme
- Information Gateway
-
Place, E.: Internationale Zusammenarbeit bei Internet Subject Gateways (1999)
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- Abstract
- Eine ganze Anzahl von Bibliotheken in Europa befaßt sich mit der Entwicklung von Internet Subject Gateways - einer Serviceleistung, die den Nutzern helfen soll, qualitativ hochwertige Internetquellen zu finden. Subject Gateways wie SOSIG (The Social Science Information Gateway) sind bereits seit einigen Jahren im Internet verfügbar und stellen eine Alternative zu Internet-Suchmaschinen wie AltaVista und Verzeichnissen wie Yahoo dar. Bezeichnenderweise stützen sich Subject Gateways auf die Fertigkeiten, Verfahrensweisen und Standards der internationalen Bibliothekswelt und wenden diese auf Informationen aus dem Internet an. Dieses Referat will daher betonen, daß Bibliothekare/innen idealerweise eine vorherrschende Rolle im Aufbau von Suchservices für Internetquellen spielen und daß Information Gateways eine Möglichkeit dafür darstellen. Es wird einige der Subject Gateway-Initiativen in Europa umreißen und die Werkzeuge und Technologien beschreiben, die vom Projekt DESIRE entwickelt wurden, um die Entwicklung neuer Gateways in anderen Ländern zu unterstützen. Es wird auch erörtert, wie IMesh, eine Gruppe für Gateways aus der ganzen Welt eine internationale Strategie für Gateways anstrebt und versucht, Standards zur Umsetzung dieses Projekts zu entwickeln
- Date
- 22. 6.2002 19:35:09
- Theme
- Information Gateway
-
Koch, T.: Quality-controlled subject gateways : definitions, typologies, empirical overview (2000)
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- Abstract
- 'Quality-controlled subject gateways' are Internet services which apply a rich set of quality measures to support systematic resource discovery. Considerable manual effort is used to secure a selection of resources which meet quality criteria and to display a rich description of these resources with standards-based metadata. Regular checking and updating ensure good collection management. A main goal is to provide a high quality of subject access through indexing resources using controlled vocabularies and by offering a deep classification structure for advanced searching and browsing. This article provides an initial empirical overview of existing services of this kind, their approaches and technologies, based on proposed working definitions and typologies of subject gateways
- Date
- 22. 6.2002 19:37:55
- Source
- Online information review. 24(2000) no.1, S.24-34
- Theme
- Information Gateway
-
Place, E.: International collaboration on Internet subject gateways (2000)
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- Abstract
- Eine ganze Anzahl von Bibliotheken in Europa befaßt sich mit der Entwicklung von Internet Subject Gateways - einer Serviceleistung, die den Nutzern helfen soll, qualitativ hochwertige Internetquellen zu finden. Subject Gateways wie SOSIG (The Social Science Information Gateway) sind bereits seit einigen Jahren im Internet verfügbar und stellen eine Alternative zu Internet-Suchmaschinen wie AltaVista und Verzeichnissen wie Yahoo dar. Bezeichnenderweise stützen sich Subject Gateways auf die Fertigkeiten, Verfahrensweisen und Standards der internationalen Bibliothekswelt und wenden diese auf Informationen aus dem Internet an. Dieses Referat will daher betonen, daß Bibliothekare/innen idealerweise eine vorherrschende Rolle im Aufbau von Suchservices für Internetquellen spielen und daß Information Gateways eine Möglichkeit dafür darstellen. Es wird einige der Subject Gateway-Initiativen in Europa umreißen und die Werkzeuge und Technologien beschreiben, die vom Projekt DESIRE entwickelt wurden, um die Entwicklung neuer Gateways in anderen Ländern zu unterstützen. Es wird auch erörtert, wie IMesh, eine Gruppe für Gateways aus der ganzen Welt eine internationale Strategie für Gateways anstrebt und versucht, Standards zur Umsetzung dieses Projekts zu entwickeln
- Date
- 22. 6.2002 19:35:35
- Theme
- Information Gateway
-
Williamson, N.J.: Knowledge structures and the Internet : progress and prospects (2006)
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- Abstract
- This paper analyses the development of the knowledge structures provided as aids to users in searching the Internet. Specific focus is given to web directories, thesauri and gateways and portals. The paper assumes that users need to be able to access information in two ways - to locate information on a subject directly in response to a search term and to be able to browse so as to familiarize themselves with a domain or to refine a request. Emphasis is to the browsing aspect. Background and development are addressed. Structures are analyzed, problems are identified, and future directions discussed.
- Date
- 27.12.2008 15:56:22
- Series
- Advances in knowledge organization; vol.10
- Source
- Knowledge organization for a global learning society: Proceedings of the 9th International ISKO Conference, 4-7 July 2006, Vienna, Austria. Hrsg.: G. Budin, C. Swertz u. K. Mitgutsch
-
Cathcart, R.; Roberts, A.: Evaluating Google Scholar as a tool for information literacy (2005)
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- Abstract
- There are a growing number of articles on the juncture of Google Scholar and libraries; this article seeks to address the ability of this resource to meet the information needs of students and researchers using the ACRL Information Literacy Standards. Each standard is applied to Google Scholar in this examination, and recommendations for how librarians might respond are offered.
-
Furner, J.: ¬A unifying model of document relatedness for hybrid search engines (2003)
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- Abstract
- Previous work an search-engine design has indicated that information-seekers may benefit from being given the opportunity to exploit multiple sources of evidence of document relatedness. Few existing systems, however, give users more than minimal control over the selections that may be made among methods of exploitation. By applying the methods of "document network analysis" (DNA), a unifying, graph-theoretic model of content-, collaboration-, and context-based systems (CCC) may be developed in which the nature of the similarities between types of document relatedness and document ranking are clarified. The usefulness of the approach to system design suggested by this model may be tested by constructing and evaluating a prototype system (UCXtra) that allows searchers to maintain control over the multiple ways in which document collections may be ranked and re-ranked.
- Date
- 11. 9.2004 17:32:22
- Series
- Advances in knowledge organization; vol.8
- Source
- Challenges in knowledge representation and organization for the 21st century: Integration of knowledge across boundaries. Proceedings of the 7th ISKO International Conference Granada, Spain, July 10-13, 2002. Ed.: M. López-Huertas
-
Dawson, A.: Creating metadata that work for digital libraries and Google (2004)
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- Abstract
- For many years metadata has been recognised as a significant component of the digital information environment. Substantial work has gone into creating complex metadata schemes for describing digital content. Yet increasingly Web search engines, and Google in particular, are the primary means of discovering and selecting digital resources, although they make little use of metadata. This article considers how digital libraries can gain more value from their metadata by adapting it for Google users, while still following well-established principles and standards for cataloguing and digital preservation.
- Theme
- Information Gateway
-
Hogan, A.; Harth, A.; Umbrich, J.; Kinsella, S.; Polleres, A.; Decker, S.: Searching and browsing Linked Data with SWSE : the Semantic Web Search Engine (2011)
0.04
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- Abstract
- In this paper, we discuss the architecture and implementation of the Semantic Web Search Engine (SWSE). Following traditional search engine architecture, SWSE consists of crawling, data enhancing, indexing and a user interface for search, browsing and retrieval of information; unlike traditional search engines, SWSE operates over RDF Web data - loosely also known as Linked Data - which implies unique challenges for the system design, architecture, algorithms, implementation and user interface. In particular, many challenges exist in adopting Semantic Web technologies for Web data: the unique challenges of the Web - in terms of scale, unreliability, inconsistency and noise - are largely overlooked by the current Semantic Web standards. Herein, we describe the current SWSE system, initially detailing the architecture and later elaborating upon the function, design, implementation and performance of each individual component. In so doing, we also give an insight into how current Semantic Web standards can be tailored, in a best-effort manner, for use on Web data. Throughout, we offer evaluation and complementary argumentation to support our design choices, and also offer discussion on future directions and open research questions. Later, we also provide candid discussion relating to the difficulties currently faced in bringing such a search engine into the mainstream, and lessons learnt from roughly six years working on the Semantic Web Search Engine project.
-
Kaeser, E.: ¬Das postfaktische Zeitalter (2016)
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- Abstract
- In der digitalen Welt wäscht ein Permaregen der Informationen ganz zentrale Standards wie Objektivität und Wahrheit aus. Die Folge: eine Demokratie der «Nichtwissenwollengesellschaft».
- Content
- "Es gibt Daten, Informationen und Fakten. Wenn man mir eine Zahlenreihe vorsetzt, dann handelt es sich um Daten: unterscheidbare Einheiten, im Fachjargon: Items. Wenn man mir sagt, dass diese Items stündliche Temperaturangaben der Aare im Berner Marzilibad bedeuten, dann verfüge ich über Information - über interpretierte Daten. Wenn man mir sagt, dies seien die gemessenen Aaretemperaturen am 22. August 2016 im Marzili, dann ist das ein Faktum: empirisch geprüfte interpretierte Daten. Dieser Dreischritt - Unterscheiden, Interpretieren, Prüfen - bildet quasi das Bindemittel des Faktischen, «the matter of fact». Wir alle führen den Dreischritt ständig aus und gelangen so zu einem relativ verlässlichen Wissen und Urteilsvermögen betreffend die Dinge des Alltags. Aber wie schon die Kurzcharakterisierung durchblicken lässt, bilden Fakten nicht den Felsengrund der Realität. Sie sind kritikanfällig, sowohl von der Interpretation wie auch von der Prüfung her gesehen. Um bei unserem Beispiel zu bleiben: Es kann durchaus sein, dass man uns zwei unterschiedliche «faktische» Temperaturverläufe der Aare am 22. August 2016 vorsetzt.
- Theme
- Information
-
Fauldrath, J.; Kunisch, A.: Kooperative Evaluation der Usability von Suchmaschineninterfaces (2005)
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- Abstract
- Im Rahmen einer Projektarbeit des Fachbereichs Informations- und Wissensmanagement (IuW) der Fachhochschule Darmstadt mit T-Online International AG (Weiterstadt) wurde eine Untersuchung der Funktionalitäten von Suchmaschinen, Portalen und Metasuchmaschinen durchgeführt. Ziel war es zu ermitteln, inwieweit Standards für das Produkt Suchdienstleistung im Web existieren und wie diese Funktionalitäten bereits heute in die Angebote integriert sind. Hierzu wurden in enger Zusammenarbeit ein Kriterienkatalog erarbeitet und anschließend die Produkte evaluiert. Besonders wichtig ist dabei, dass die Nutzer das Gefühl erhalten, ihre Distanz zur gesuchten Information durch das Angebot zu verringern. Hierbei ist jede Form von Vereinfachung und Hilfe gewünscht, um möglichst schnell, einfach und umfassend zum Ergebnis zu kommen. Das Suchangebot ist für die Suchmaschinenanbieter ein Wirtschaftsfaktor, aber auch für kommerzielle Anbieter ist es wichtig, mit einem möglichst hohen Ranking auf gut gestalteten Ergebnisseiten auffindbar zu sein. Deshalb ist das Thema Usability von Suchmaschineninterfaces brandaktuell.
- Source
- Information - Wissenschaft und Praxis. 56(2005) H.1, S.21-28
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Aschoff, F.; Rausch von Traubenberg, E.: Usability von Webportalen und Web-Suchmaschinen im Vergleich (2007)
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- Abstract
- Im Rahmen eines berufspraktischen Studiensemesters bei der T-Online AG (Darmstadt) wurden Suchmaschinen und Portale mit integrierter Suchfunktion hinsichtlich Funktionalität und Usability untersucht. Ausgehend von der von Fauldrath und Kunisch bereits 2005 durchgeführten Untersuchung wurde erneut geprüft, welche Standards sich bei den Suchdienstanbietern etabliert haben und welche Trends erkennbar sind. Der bei der zurückliegenden Evaluation verwendete Kriterienkatalog wurde um einige Kriterien erweitert und als Bewertungsschablone der vorliegenden Evaluation eingesetzt. Besonders wichtig für den Nutzwert eines Suchdienstes ist die Relevanz der Treffer. Der bisher weit verbreitete Weg, entsprechende Spezialsuchen anzubieten, verkompliziert die Benutzung der Suchmaschine erheblich, weshalb auch aufgezeigt wird, welche Strategien die Suchdienste zur besseren Antizipierung des Nutzer-Informationsbedürfnisses bereitstellen. Die somit erzielte verbesserte Einbindung eigener Dienste und Inhalte stellt einen enormen Gewinn dar, da sowohl Nutzer als auch Anbieter gleichermaßen davon profitieren.
- Source
- Information - Wissenschaft und Praxis. 58(2007) H.3, S.141-148
-
MacLeod, R.: Promoting a subject gateway : a case study from EEVL (Edinburgh Engineering Virtual Library) (2000)
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- Date
- 22. 6.2002 19:40:22
- Source
- Online information review. 24(2000) no.1, S.59-63
- Theme
- Information Gateway
-
Horch, A.; Kett, H.; Weisbecker, A.: Semantische Suchsysteme für das Internet : Architekturen und Komponenten semantischer Suchmaschinen (2013)
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- Abstract
- In der heutigen Zeit nimmt die Flut an Informationen exponentiell zu. In dieser »Informationsexplosion« entsteht täglich eine unüberschaubare Menge an neuen Informationen im Web: Beispielsweise 430 deutschsprachige Artikel bei Wikipedia, 2,4 Mio. Tweets bei Twitter und 12,2 Mio. Kommentare bei Facebook. Während in Deutschland vor einigen Jahren noch Google als nahezu einzige Suchmaschine beim Zugriff auf Informationen im Web genutzt wurde, nehmen heute die u.a. in Social Media veröffentlichten Meinungen und damit die Vorauswahl sowie Bewertung von Informationen einzelner Experten und Meinungsführer an Bedeutung zu. Aber wie können themenspezifische Informationen nun effizient für konkrete Fragestellungen identifiziert und bedarfsgerecht aufbereitet und visualisiert werden? Diese Studie gibt einen Überblick über semantische Standards und Formate, die Prozesse der semantischen Suche, Methoden und Techniken semantischer Suchsysteme, Komponenten zur Entwicklung semantischer Suchmaschinen sowie den Aufbau bestehender Anwendungen. Die Studie erläutert den prinzipiellen Aufbau semantischer Suchsysteme und stellt Methoden der semantischen Suche vor. Zudem werden Softwarewerkzeuge vorgestellt, mithilfe derer einzelne Funktionalitäten von semantischen Suchmaschinen realisiert werden können. Abschließend erfolgt die Betrachtung bestehender semantischer Suchmaschinen zur Veranschaulichung der Unterschiede der Systeme im Aufbau sowie in der Funktionalität.
- RSWK
- Suchmaschine / Semantic Web / Information Retrieval
Suchmaschine / Information Retrieval / Ranking / Datenstruktur / Kontextbezogenes System
- Subject
- Suchmaschine / Semantic Web / Information Retrieval
Suchmaschine / Information Retrieval / Ranking / Datenstruktur / Kontextbezogenes System
-
Back, J.: ¬An evaluation of relevancy ranking techniques used by Internet search engines (2000)
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- Date
- 25. 8.2005 17:42:22
- Source
- Library and information research news. 24(2000) no.77, S.30-34
-
Braschler, M.; Herget, J.; Pfister, J.; Schäuble, P.; Steinbach, M.; Stuker, J.: Kommunikation im Internet : Die Suchfunktion im Praxistest (2007)
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- Abstract
- Die Ausgangslage für Suchfunktionen auf Unternehmens-Websites stellt sich grundlegend anders dar als bei Internet-Suchdiensten. Nicht die möglichst breite Erschließung von Informationen vieler verschiedener Websites, sondern der erfolgreiche Dialog mit den Nutzern steht im Vordergrund. Das Gelingen dieser Kommunikation wird in diesem Beitrag untersucht. Von 56 Schweizer Unternehmen und Behörden wurde jeweils die Suchfunktion der Website untersucht. Dabei gruppierten sich die insgesamt 74 Einzeltests in die vier Hauptkriterien: Suchindex, Vergleich von Anfragen und Dokumenten, Benutzerinteraktion und Suchergebnisse. Die Resultate zeigen großes Potential für Verbesserungen. Dabei wurden kein Ranking der Websites und keine Auszeichnung im Rahmen der Studie beabsichtigt. Vielmehr wurde auf Basis der Ergebnisse eine Einteilung in gute, mittlere und schlechte Websites für die einzelnen Kriterien durchgeführt. Die Analyse zeigt, dass keine Website in sämtlichen getesteten Kriterien sehr gut abschneidet. Die Studie schließt mit verschiedenen Empfehlungen, die dazu führen können, die Qualität der Suchfunktion wesentlich zu verbessern. Hierbei wird unter anderem empfohlen, der Aktualität und Vollständigkeit des Suchindex besondere Beachtung zu schenken, Metadaten der Dokumentenbasis zu pflegen, bewährte Standards für die Benutzerinteraktion zu beachten und Trefferlisten sowie potenzielle Suchanfragen auch auf eine mögliche Nutzersicht hin zu optimieren.
- Source
- Information - Wissenschaft und Praxis. 58(2007) H.3, S.159-164
-
Price, A.: Five new Danish subject gateways under development (2000)
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- Content
- Subject gateways zu den Bereichen: Business economics - The virtual music library - clinical information - food science and food technology - energy technology
- Date
- 22. 6.2002 19:41:31
- Source
- Online information review. 24(2000) no.1, S.84
- Theme
- Information Gateway
-
Heery, R.: Information gateways : collaboration and content (2000)
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- Abstract
- Information subject gateways provide targeted discovery services for their users, giving access to Web resources selected according to quality and subject coverage criteria. Information gateways recognise that they must collaborate on a wide range of issues relating to content to ensure continued success. This report is informed by discussion of content activities at the 1999 Imesh Workshop. The author considers the implications for subject based gateways of co-operation regarding coverage policy, creation of metadata, and provision of searching and browsing across services. Other possibilities for co-operation include working more closely with information providers, and diclosure of information in joint metadata registries
- Date
- 22. 6.2002 19:38:54
- Source
- Online information review. 24(2000) no.1, S.40-45
- Theme
- Information Gateway
-
Ding, Y.; Chowdhury, G.; Foo, S.: Organsising keywords in a Web search environment : a methodology based on co-word analysis (2000)
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- Abstract
- The rapid development of the Internet and World Wide Web has caused some critical problem for information retrieval. Researchers have made several attempts to solve these problems. Thesauri and subject heading lists as traditional information retrieval tools have been criticised for their efficiency to tackle these newly emerging problems. This paper proposes an information retrieval tool generated by cocitation analysis, comprising keyword clusters with relationships based on the co-occurrences of keywords in the literature. Such a tool can play the role of an associative thesaurus that can provide information about the keywords in a domain that might be useful for information searching and query expansion
- Series
- Advances in knowledge organization; vol.7
- Source
- Dynamism and stability in knowledge organization: Proceedings of the 6th International ISKO-Conference, 10-13 July 2000, Toronto, Canada. Ed.: C. Beghtol et al
-
Milonas, E.: ¬The use of facets in Web search engines
0.03
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- Abstract
- The World Wide Web consists of a plethora of information that a Web searcher can retrieve via Web search engines such as Google. These Web search engines display an insurmountable amount of information in a seemingly unorganized linear format. Recently, some Web search engines have incorporated facets or terms alongside the linear display allowing the searcher the ability to narrow search results. The goal of this study is to examine the use of facets in these Web search engines.
- Series
- Advances in knowledge organization; vol.12
- Source
- Paradigms and conceptual systems in knowledge organization: Proceedings of the Eleventh International ISKO conference, Rome, 23-26 February 2010, ed. Claudio Gnoli, Indeks, Frankfurt M
