Search (60 results, page 1 of 3)

  • × theme_ss:"Internet"
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  1. Nait-Baha, L.; Jackiewicz, A.; Djioua, B.; Laublet, P.: Query reformulation for information retrieval on the Web using the point of view methodology : preliminary results (2001) 0.06 
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    Abstract
    The work we are presenting is devoted to the information collected on the WWW. By the term collected we mean the whole process of retrieving, extracting and presenting results to the user. This research is part of the RAP (Research, Analyze, Propose) project in which we propose to combine two methods: (i) query reformulation using linguistic markers according to a given point of view; and (ii) text semantic analysis by means of contextual exploration results (Descles, 1991). The general project architecture describing the interactions between the users, the RAP system and the WWW search engines is presented in Nait-Baha et al. (1998). We will focus this paper on showing how we use linguistic markers to reformulate the queries according to a given point of view
  2. Bradley, P.: Advanced Internet searcher's handbook (1998) 0.05 
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    LCSH
    World Wide Web (Information retrieval system)
    Information retrieval
    Subject
    World Wide Web (Information retrieval system)
    Information retrieval
  3. Ardo, A.; Lundberg, S.: ¬A regional distributed WWW search and indexing service : the DESIRE way (1998) 0.05 
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    Abstract
    Creates an open, metadata aware system for distributed, collaborative WWW indexing. The system has 3 main components: a harvester (for collecting information), a database (for making the collection searchable), and a user interface (for making the information available). all components can be distributed across networked computers, thus supporting scalability. The system is metadata aware and thus allows searches on several fields including title, document author and URL. Nordic Web Index (NWI) is an application using this system to create a regional Nordic Web-indexing service. NWI is built using 5 collaborating service points within the Nordic countries. The NWI databases can be used to build additional services
    Date
    1. 8.1996 22:08:06
    Footnote
    Contribution to a special issue devoted to the Proceedings of the 7th International World Wide Web Conference, held 14-18 April 1998, Brisbane, Australia
    Object
    Nordic Web Index
    Theme
    Klassifikationssysteme im Online-Retrieval
  4. Drabenstott, K.M.: Web search strategies (2000) 0.05 
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    Abstract
    Surfing the World Wide Web used to be cool, dude, real cool. But things have gotten hot - so hot that finding something useful an the Web is no longer cool. It is suffocating Web searchers in the smoke and debris of mountain-sized lists of hits, decisions about which search engines they should use, whether they will get lost in the dizzying maze of a subject directory, use the right syntax for the search engine at hand, enter keywords that are likely to retrieve hits an the topics they have in mind, or enlist a browser that has sufficient functionality to display the most promising hits. When it comes to Web searching, in a few short years we have gone from the cool image of surfing the Web into the frying pan of searching the Web. We can turn down the heat by rethinking what Web searchers are doing and introduce some order into the chaos. Web search strategies that are tool-based-oriented to specific Web searching tools such as search en gines, subject directories, and meta search engines-have been widely promoted, and these strategies are just not working. It is time to dissect what Web searching tools expect from searchers and adjust our search strategies to these new tools. This discussion offers Web searchers help in the form of search strategies that are based an strategies that librarians have been using for a long time to search commercial information retrieval systems like Dialog, NEXIS, Wilsonline, FirstSearch, and Data-Star.
    Content
    "Web searching is different from searching commercial IR systems. We can learn from search strategies recommended for searching IR systems, but most won't be effective for Web searching. Web searchers need strate gies that let search engines do the job they were designed to do. This article presents six new Web searching strategies that do just that."
    Date
    22. 9.1997 19:16:05
  5. Hsieh-Yee, I.: ¬The retrieval power of selected search engines : how well do they address general reference questions and subject questions? (1998) 0.03 
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    Abstract
    Evaluates the performance of 8 major Internet search engines in answering 21 real reference questions and 5 made up subject questions. Reports on the retrieval and relevancy ranking abilities of the search engines. Concludes that the search engines did not produce good results for the reference questions unlike for the subject questions. The best engines are identified by type of questions, with Infoseek best for the subject questions, and OpenText best for refrence questions
    Date
    25.12.1998 19:22:51
  6. Wiley, D.L.: Beyond information retrieval : ways to provide content in context (1998) 0.03 
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    Abstract
    The days of the traditional abstracting and indexing services are waning, as abstracts and bibliographic data become commodities. However, there are tremedous opportunities for those organizations willing to look beyond the status quo to the new possibilities enabled by the latest wave of advanced technologies. Those who own content need to focus on the delivery mechanisms and new markets that technology can provide. Features like automatic extraction of key concepts or names, collaborative filtering to help with trend analysis, and visualization techniques can take information past the retrieval stage and into the management area
    Source
    Database. 21(1998) no.4, S.18-22
  7. Fu, T.; Abbasi, A.; Chen, H.: ¬A focused crawler for Dark Web forums (2010) 0.03 
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    Abstract
    The unprecedented growth of the Internet has given rise to the Dark Web, the problematic facet of the Web associated with cybercrime, hate, and extremism. Despite the need for tools to collect and analyze Dark Web forums, the covert nature of this part of the Internet makes traditional Web crawling techniques insufficient for capturing such content. In this study, we propose a novel crawling system designed to collect Dark Web forum content. The system uses a human-assisted accessibility approach to gain access to Dark Web forums. Several URL ordering features and techniques enable efficient extraction of forum postings. The system also includes an incremental crawler coupled with a recall-improvement mechanism intended to facilitate enhanced retrieval and updating of collected content. Experiments conducted to evaluate the effectiveness of the human-assisted accessibility approach and the recall-improvement-based, incremental-update procedure yielded favorable results. The human-assisted approach significantly improved access to Dark Web forums while the incremental crawler with recall improvement also outperformed standard periodic- and incremental-update approaches. Using the system, we were able to collect over 100 Dark Web forums from three regions. A case study encompassing link and content analysis of collected forums was used to illustrate the value and importance of gathering and analyzing content from such online communities.
  8. Stacey, Alison; Stacey, Adrian: Effective information retrieval from the Internet : an advanced user's guide (2004) 0.03 
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    Abstract
    This book provides practical strategies which enable the advanced web user to locate information effectively and to form a precise evaluation of the accuracy of that information. Although the book provides a brief but thorough review of the technologies which are currently available for these purposes, most of the book concerns practical `future-proof' techniques which are independent of changes in the tools available. For example, the book covers: how to retrieve salient information quickly; how to remove or compensate for bias; and tuition of novice Internet users.
    Content
    Key Features - Importantly, the book enables readers to develop strategies which will continue to be useful despite the rapidly-evolving state of the Internet and Internet technologies - it is not about technological `tricks'. - Enables readers to be aware of and compensate for bias and errors which are ubiquitous an the Internet. - Provides contemporary information an the deficiencies in web skills of novice users as well as practical techniques for teaching such users. The Authors Dr Alison Stacey works at the Learning Resource Centre, Cambridge Regional College. Dr Adrian Stacey, formerly based at Cambridge University, is a software programmer. Readership The book is aimed at a wide range of librarians and other information professionals who need to retrieve information from the Internet efficiently, to evaluate their confidence in the information they retrieve and/or to train others to use the Internet. It is primarily aimed at intermediate to advanced users of the Internet. Contents Fundamentals of information retrieval from the Internet - why learn web searching technique; types of information requests; patterns for information retrieval; leveraging the technology: Search term choice: pinpointing information an the web - why choose queries carefully; making search terms work together; how to pick search terms; finding the 'unfindable': Blas an the Internet - importance of bias; sources of bias; usergenerated bias: selecting information with which you already agree; assessing and compensating for bias; case studies: Query reformulation and longer term strategies - how to interact with your search engine; foraging for information; long term information retrieval: using the Internet to find trends; automating searches: how to make your machine do your work: Assessing the quality of results- how to assess and ensure quality: The novice user and teaching internet skills - novice users and their problems with the web; case study: research in a college library; interpreting 'second hand' web information.
  9. Jepsen, E.T.; Seiden, P.; Ingwersen, P.; Björneborn, L.; Borlund, P.: Characteristics of scientific Web publications : preliminary data gathering and analysis (2004) 0.02 
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    Abstract
    Because of the increasing presence of scientific publications an the Web, combined with the existing difficulties in easily verifying and retrieving these publications, research an techniques and methods for retrieval of scientific Web publications is called for. In this article, we report an the initial steps taken toward the construction of a test collection of scientific Web publications within the subject domain of plant biology. The steps reported are those of data gathering and data analysis aiming at identifying characteristics of scientific Web publications. The data used in this article were generated based an specifically selected domain topics that are searched for in three publicly accessible search engines (Google, AlITheWeb, and AItaVista). A sample of the retrieved hits was analyzed with regard to how various publication attributes correlated with the scientific quality of the content and whether this information could be employed to harvest, filter, and rank Web publications. The attributes analyzed were inlinks, outlinks, bibliographic references, file format, language, search engine overlap, structural position (according to site structure), and the occurrence of various types of metadata. As could be expected, the ranked output differs between the three search engines. Apparently, this is caused by differences in ranking algorithms rather than the databases themselves. In fact, because scientific Web content in this subject domain receives few inlinks, both AItaVista and AlITheWeb retrieved a higher degree of accessible scientific content than Google. Because of the search engine cutoffs of accessible URLs, the feasibility of using search engine output for Web content analysis is also discussed.
  10. Garnsey, M.R.: What distance learners should know about information retrieval on the World Wide Web (2002) 0.02 
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    Abstract
    The Internet can be a valuable tool allowing distance learners to access information not available locally. Search engines are the most common means of locating relevant information an the Internet, but to use them efficiently students should be taught the basics of searching and how to evaluate the results. This article briefly reviews how Search engines work, studies comparing Search engines, and criteria useful in evaluating the quality of returned Web pages. Research indicates there are statistical differences in the precision of Search engines, with AltaVista ranking high in several studies. When evaluating the quality of Web pages, standard criteria used in evaluating print resources is appropriate, as well as additional criteria which relate to the Web site itself. Giving distance learners training in how to use Search engines and how to evaluate the results will allow them to access relevant information efficiently while ensuring that it is of adequate quality.
  11. Eggeling, T.; Kroschel, A.: Alles finden im Web (2000) 0.02 
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    Date
    9. 7.2000 14:06:22
  12. Bertelmann, R.; Rusch-Feja, D.: Informationsretrieval im Internet : Surfen, Browsen, Suchen - mit einem Überblick über strukturierte Informationsangebote (1997) 0.02 
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    Abstract
    Das gezielte Suchen im Internet findet in erster Linie mit Hilfe der Suchmaschinen statt. Daneben gibt es aber bereits eine Fülle von strukturierten Informationsangeboten, aufbereiteten Listen und Sammelstellen, die als Clearinghouse, Subject Gateway, Subject Tree oder Resource Pages bezeichnet werden. Solche intellektuell erstellten Übersichten geben in der Regel bereits Hinweise zu Inhalt und fachlichem Niveau der Quelle. Da die Art und Weise der Aufbereitung bei den Sammelstellen sehr unterschiedlich funktioniert, ist die Kenntnis ihrer Erschließungskriterien für ein erfolgreiches Retrieval unverzichtbar
    Date
    9. 7.2000 11:31:22
  13. Rowlands, I.; Nicholas, D.; Williams, P.; Huntington, P.; Fieldhouse, M.; Gunter, B.; Withey, R.; Jamali, H.R.; Dobrowolski, T.; Tenopir, C.: ¬The Google generation : the information behaviour of the researcher of the future (2008) 0.02 
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    Abstract
    Purpose - This article is an edited version of a report commissioned by the British Library and JISC to identify how the specialist researchers of the future (those born after 1993) are likely to access and interact with digital resources in five to ten years' time. The purpose is to investigate the impact of digital transition on the information behaviour of the Google Generation and to guide library and information services to anticipate and react to any new or emerging behaviours in the most effective way. Design/methodology/approach - The study was virtually longitudinal and is based on a number of extensive reviews of related literature, survey data mining and a deep log analysis of a British Library and a JISC web site intended for younger people. Findings - The study shows that much of the impact of ICTs on the young has been overestimated. The study claims that although young people demonstrate an apparent ease and familiarity with computers, they rely heavily on search engines, view rather than read and do not possess the critical and analytical skills to assess the information that they find on the web. Originality/value - The paper reports on a study that overturns the common assumption that the "Google generation" is the most web-literate.
    Footnote
    Vgl. auch: Rowlands, I.: Google generation: issues in information literacy. In: http://www.lucis.me.uk/retrieval%20issues.pdf.
  14. Zutter, S.: Alles dreht sich um die Suche : Information Online Konferenz in Sydney, Australien (2005) 0.01 
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    Abstract
    Mit über 1100 Delegierten und 85 Ausstellern stellte die zwölfte Information Online auch 2005 wieder die im Raum Asien und Pazifik größte und renommierteste regionale Fachmesse für den Informationsbereich dar. Alle zwei Jahre veranstaltet der australische Informationsberufe-Verband ALIA in Sydney die Tagung mit Fachreferenten aus Australien, Asien, Europa und USA. An drei bis fünf Tagen kommen hier Bibliothekare und Informationsspezialisten aus Australien und Neuseeland, Indien, Malaysien, Amerika, und Europa zusammen, um sich anhand von Vorträgen, Workshops, einer Fachausstellung und reichlich Gelegenheiten für informelles Networking einen Überblick über den sich rasant entwickelnden Markt des elektronischen Informationsmanagement und der Informationsversorgung zu verschaffen. 60 Referenten und neun Hauptredner (Angela Abell, Kate Andrews, Liesle Capper, Peter Crowe, Prof. Brian Fitzgerald, David Hawking, Mary Lee Kennedy, Hemant Manohar, Joan Frye Williams) lieferten Forschungsergebnisse, Fallstudien, Fortschrifttsberichte und programmatische Thesen aus den Themenbereichen Informationsarchitektur, Online Archive, Content Management Systeme, Urheberrecht und WWW, Web Services für Bibliotheken und Informationsstellen, Benutzungsschemata für Web-Technologien, Schnittstellen, Datenpool, Bibliotheksautomation, Referenzservice online, Metadaten für Informationssysteme und für Organisationen, Wissenschaftliches Publizieren, Open Access, Knowledge Management und intellektuelles Kapital, Benutzerpsychologie, Online lernen, Berufsbild Informationsspezialist. Ein Drittel der Beiträge beschäftigte sich mit Fragen rund um Information beziehungsweise Knowledge Discovery Search, Search und nochmals Search. Dreht sich angesichts der kommerziellen Erfolge von Google und Konsorten denn alles nur noch um die Websuche?
    Date
    22. 5.2005 13:51:43
  15. Cooke, A.: ¬A guide to finding quality information on the Internet : selection and evaluation strategies (1999) 0.01 
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    LCSH
    Information retrieval
    Subject
    Information retrieval
  16. Stock, W.G.: Verkaufte Suchwörter, verkaufte Links : Retrieval nach Homepages optimiert? (1999) 0.01 
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    Abstract
    Selten wurde ein Dienst so stark diskutiert wie 'RealNames', da sowohl seine Suchwörter als auch die darauf aufsetzenden Links auf Homepages verkauft werden. Machen wir uns doch nichts vor: Das WWW ist ein kommerzielles Unternehmen, die Dienstleistungen müssen finanziert werden. Und warum soll nicht ein Privatunternehmen mit Inhaltserschließung Gewinne erzielen? RealNames mit seinem 'Internet Keyword System' ist eine interessante Idee, das Retrieval nach Homepages zielgenau durchzuführen. Was bringt RealNames den Nutzern? Wann sollte jemand, der Sites im WWW unterhält, Suchwörter und Links bei RealNames abonnieren (und was kostet das)? Im Oktober 1999 haben wir RealNames genauer angeschaut. Analysiert wurde das gezielte Retrieval nach Homepages bei AltaVista, Fireball und bei RealNames.com
  17. Hölscher, C.: ¬Die Rolle des Wissens im Internet : Gezielt suchen und kompetent auswählen (2002) 0.01 
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    Footnote
    Rez. in BuB 56(2004) H.4, S.84-86 (D. Lewandowski): "Eines vorab: Sowohl der Titel als auch der Klappentext dieses Bandes sind irreführend. Man würde annehmen, dass es sich um einen weiteren Ratgeber zur Internetre-cherche handelt; dies ist jedoch nicht der Fall. Vielmehr untersucht der Autor das Rechercheverhalten so genannter Internetexperten, wobei ein »Experte« hier durch seine (mehrjährige) Erfahrung mit dem Internet definiert wird. Eine formale Ausbildung spielt keine Rolle: »Bezüglich ihrer Web-Kenntnisse sind die Teilnehmer [der Untersuchungen] als Autodidakten zu beschreiben, die sich ihr Wissen über die Jahre eigenständig, zum Teil als Hobby, insbesondere aber im Rahmen eines training-onthe job selbst angeeignet haben« (Seite 102). - Zwei Vergleichsstudien - Nach einführenden Kapiteln über die Expertiseforschung in der Psychologie, ihrer Anwendung auf Fragen des Information Retrieval und Betrachtungen über das Konzept des Hypertexts sowie einem Uberblick über Nutzerstudien im Bereich der Websuche kommt der Autor zum Kernpunkt seines Werks. Er besteht aus zwei Untersuchungen, die der Verfasser im Rahmen seines Dissertationsprojekts, dessen Ergebnisse das vorliegende Buch darstellt, durchgeführt hat. Für die erste Studie machte der Autor Interviews mit den Versuchspersonen, um ihre grundsätzlichen Recherchestra tegien kennen zu lernen und anhand der Ergebnisse ein Ablaufdiagramm typischer Internetrecherchen zu erstellen. In einem zweiten Schritt mussten die Versuchspersonen einige Suchaufgaben lösen. Dabei wurde beobachtet, inwieweit sich das Suchverhalten der Experten von demjenigen des durchschnittlichen Nutzers unterscheidet. Der Vergleich erfolgte auf Basis eines Rechercheprotokolls (Query Log) der Suchmaschine Fireball. Ergebnis war unter anderem, dass die Experten häufiger Operatoren und die Möglichkeit der Phrasensuche nutzten und dass ihre Anfragen aus durchschnittlich mehr Suchbegriffen bestanden. In der zweiten Studie wurde eine Expertengruppe direkt mit Internetanfängern verglichen. Die Aufgabenstellungen kamen aus dem Bereich der Volkswirtschaft (Euro-Umstellung). Die Versuchsteilnehmer wurden in vier Gruppen aufgeteilt: jeweils Anfänger und Experten mit beziehungsweise ohne volkswirtschaftliche Vorkenntnisse. Das Ergebnis war, dass die Gruppe der »Doppelexperten« deutlich bessere Resultate erzielte als Teilnehmer der anderen Gruppen. Erfahrungen nur im volkswirtschaftlichen Bereich oder aber in Bezug auf die Internetrecherche reichten nicht aus, um die Aufgaben besser zu lösen als die so genannten Doppellaien. Allerdings stellt der Autor selbst fest, dass der Schwierigkeitsgrad der gestellten Aufgaben für die Versuchspersonen zu hoch war. Besonders gravierend war dies bei der letzten Aufgabe. Diese konnten von den 47 Teilnehmern nur zwei erfolgreich bearbeiten; interessanterweise ein Doppelexperte und ein Doppellaie. Unter anderem diese Feststellung stellt die Kriterien für einen »Web-Experten« infrage. Interessant wäre es gewesen, wenn anstatt der Abgrenzung durch das Kriterium Web-Erfahrung »wirkliche« Experten wie Bibliothekare und Informationsvermittler die untersuchte Expertengruppe gebildet hätten. Zwar hätten sich bei dem aufgezeichneten exemplarischen Ablauf einer Recherche wohl keine gravierenden Unterschiede ergeben, wahrscheinlich aber bei der Lösung der Suchaufgaben. Die im Anhang abgedruckten Aufgaben erscheinen auch für den nicht volkswirtschaftlich gebildeten Profi als nicht übermäßig schwierig. Die Aussage, dass nur Doppelexperten Suchaufgaben besser lösen können als Anfänger in beiden Bereichen, ist also durchaus fragwürdig. Der Autor kommt zu dem Schluss, dass »inhaltliches Wissen - zumindest für sehr spezifische, inhaltlich anspruchsvolle Aufgaben - als Hilfsmittel der Recherche nur schwer zu kompensieren [ist] « (Seite 185). Dem ist bei hoch spezialisierten Fragestellungen sicherlich zuzustimmen; dabei sollte allerdings eine klare Grenze gesetzt werden, was denn nun sehr spezifische Aufgaben sind.
  18. Lim, E.: Subject Gateways in Südostasien : Anwendung von Klassifikationen (1999) 0.01 
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    Theme
    Klassifikationssysteme im Online-Retrieval
  19. Stock, M.; Stock, W.G.: Recherchieren im Internet (2004) 0.01 
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    Date
    27.11.2005 18:04:22
  20. Day, M.; Koch, T.: ¬The role of classification schemes in Internet resource description and discovery : DESIRE - Development of a European Service for Information on Research and Education. Specification for resource description methods, part 3 (1997) 0.01 
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    Theme
    Klassifikationssysteme im Online-Retrieval

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