Search (205 results, page 1 of 11)

  • × theme_ss:"Suchmaschinen"
  1. Li, L.; Shang, Y.; Zhang, W.: Improvement of HITS-based algorithms on Web documents 0.22 
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    Content
    Vgl.: http%3A%2F%2Fdelab.csd.auth.gr%2F~dimitris%2Fcourses%2Fir_spring06%2Fpage_rank_computing%2Fp527-li.pdf. Vgl. auch: http://www2002.org/CDROM/refereed/643/.
  2. Becker, F.: Internet-Suchmaschinen : Funktionsweise und Beurteilung (1999) 0.04 
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    Date
    22. 3.2008 14:04:11
    Footnote
    Überarbeitete Ausgabe der Diplomarbeit im Studiengang Öffentliche Bibliotheken bei der Fachhochschule Stuttgart, Hochschule für Bibliotheks- und Informationswesen.
  3. Hastik, C.; Schuster, A.; Knauerhase, A.: Wissenschaftliche Suchmaschinen : Usability Evaluation und Betrachtung des Suchverhaltens potentieller Nutzer (2009) 0.03 
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    Abstract
    Wissenschaftliche Suchmaschinen haben es nicht leicht in einer "Amazoogle" gestalteten Welt. Dabei ist nicht nur die Einfachheit der Benutzerschnittstelle d.h. die Umsetzung von Usability-Anforderungen entscheidend für den Erfolg, sondern ebenso die Qualität der Suchergebnisse. Im Rahmen des Masterprojektes "Wissenschaftliche Suchmaschinen" an der Hochschule Darmstadt werden benutzerspezifische Bedürfnisse, Anforderungen und Aspekte der Wahrnehmung in Relation zum individuellen Informationssuchverhalten aufgerollt und methodisch evaluiert. Es wird der Fragestellung nachgegangen, was die Informationssuche auszeichnet und welche Rolle die Informationskompetenz der Nutzer in diesem Rahmen spielt. Anschließend werden die Ergebnisse detailliert skizziert, analysiert und daraus Rückschlüsse auf die zielgruppenspezifischen Anforderungen und Bedürfnisse hinsichtlich der Gestaltung von wissenschaftlichen Suchmaschinen gezogen.
    Date
    23. 3.2009 14:49:22
  4. Berinstein, P.: Turning visual : image search engines on the Web (1998) 0.02 
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    Abstract
    Gives an overview of image search engines on the Web. They work by: looking for graphics files; looking for a caption; looking for Web sites whose titles indicate the presence of picturres on a certain subject; or employing human intervention. Describes the image search capabilities of: AltaVista; Amazing Picture Machine (Http://www.ncrtec.org/picture.htm); HotBot; ImageSurfer (http://ipix.yahoo.com); Lycos; Web Clip Art Search Engine and WebSEEK. The search engines employing human intervention provide the best results
    Source
    Online. 22(1998) no.3, S.37-38,40-42
  5. Campbell, D.: Australian subject gateways : political and strategic issues (2000) 0.02 
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    Abstract
    The key political and strategic issues which needs to be addressed for the future development of the Australian subject gateways are: continued quality of content creation, integration of access to print and electronic resources, archiving and persistent identification, sustainability of services and service integration. These issues will be more effectively tackled internationally, and the Australian subject gateways are keen to work with international collaborators to achieve a mutually beneficial outcome
    Date
    22. 6.2002 19:41:16
  6. Gourbin, G.: ¬Une nouvelle profession : cyber-documentaliste l'exemple de Nomade (1998) 0.01 
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    Abstract
    Users who want to exploit all the information sources on the Web will need an efficient search and selection tool e.g. a directory or search engine. Directories list Web sites and analyze their contents. Describes the behind-the-scenes work of documentalists specialized in surfing, tracking and indexing French language sites for the directory Nomade. Describes the creation of Nomade, its functioning and indexing, and how this new profession of 'cyber-documentalist' is changing the practices and functions of information professionals as they become Internet information organizers
    Date
    1. 8.1996 22:01:00
  7. Krüger, C.: Evaluation des WWW-Suchdienstes GERHARD unter besonderer Beachtung automatischer Indexierung (1999) 0.01 
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    Footnote
    Diplomarbeit im Fach Inhaltliche Erschließung, Studiengang Informationsmanagement der FH Stuttgart - Hochschule für Bibliotheks- und Informationswesen
    Imprint
    Stuttgart : FH - Hochschule für Bibliotheks- und Informationswesen
  8. Krüger, K.: Suchmaschinen-Spamming : Vergleichend-kritische Analysen zur Wirkung kommerzieller Strategien der Website-Optimierung auf das Ranking in www-Suchmaschinen (2004) 0.01 
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    Imprint
    Hamburg : Hochschule für Angewandte Wissenschaften, FB Bibliothek und Information
  9. Kwok, S.H.; Yang, C.S.: Searching the Peer-to-Peer Networks : the community and their queries (2004) 0.01 
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    Abstract
    Peer-to-Peer (P2P) networks provide a new distributed computing paradigm an the Internet for file sharing. The decentralized nature of P2P networks fosters cooperative and non-cooperative behaviors in sharing resources. Searching is a major component of P2P file sharing. Several studies have been reported an the nature of queries of World Wide Web (WWW) search engines, but studies an queries of P2P networks have not been reported yet. In this report, we present our study an the Gnutella network, a decentralized and unstructured P2P network. We found that the majority of Gnutella users are located in the United States. Most queries are repeated. This may be because the hosts of the target files connect or disconnect from the network any time, so clients resubmit their queries. Queries are also forwarded from peers to peers. Findings are compared with the data from two other studies of Web queries. The length of queries in the Gnutella network is longer than those reported in the studies of WWW search engines. Queries with the highest frequency are mostly related to the names of movies, songs, artists, singers, and directors. Terms with the highest frequency are related to file formats, entertainment, and sexuality. This study is important for the future design of applications, architecture, and services of P2P networks.
  10. Balas, J.: ¬The importance of mastering search engines (1998) 0.01 
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    Abstract
    To use the electronic resources of the Internet effectively, reference librarians must learn to use the various search engines to their best advantage. Describes the following Web sites which provide help for librarians in improving their Internet searching skills: the Bergen County Cooperative Library System which has links to some well-known directories and search engines; the Spider's Apprentice, which provides ratings and in-depth analysis of search engines, a FAQ document useful to the beginning searcher, and an online discussion forum; ZDNet's WebSearchUser which has feature articles, reviews and tutorials; and Search Engine Watch which reports new developments in search engines. URLs for these and other resources are given
  11. Furner, J.: ¬A unifying model of document relatedness for hybrid search engines (2003) 0.01 
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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
  12. Web work : Information seeking and knowledge work on the World Wide Web (2000) 0.01 
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  13. Semantische Suche über 500 Millionen Web-Dokumente (2009) 0.01 
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    Content
    "Wissenschaftler an der University of Washington haben eine neue Suchmaschinen-Engine geschrieben, die Zusammenhänge und Fakten aus mehr als 500 Millionen einzelner Web-Seiten zusammentragen kann. Das Werkzeug extrahiert dabei Informationen aus Milliarden von Textzeilen, indem die grundlegenden sprachlichen Beziehungen zwischen Wörtern analysiert werden. Experten glauben, dass solche Systeme zur automatischen Informationsgewinnung eines Tages die Grundlage deutlich smarterer Suchmaschinen bilden werden, als sie heute verfügbar sind. Dazu werden die wichtigsten Datenhappen zunächst von einem Algorithmus intern begutachtet und dann intelligent kombiniert, berichtet Technology Review in seiner Online-Ausgabe. Das Projekt US-Forscher stellt eine deutliche Ausweitung einer zuvor an der gleichen Hochschule entwickelten Technik namens TextRunner dar. Sowohl die Anzahl analysierbarer Seiten als auch die Themengebiete wurden dabei stark erweitert. "TextRunner ist deshalb so bedeutsam, weil es skaliert, ohne dass dabei ein Mensch eingreifen müsste", sagt Peter Norvig, Forschungsdirektor bei Google. Der Internet-Konzern spendete dem Projekt die riesige Datenbank aus einzelnen Web-Seiten, die TextRunner analysiert. "Das System kann Millionen von Beziehungen erkennen und erlernen - und zwar nicht nur jede einzeln. Einen Betreuer braucht die Software nicht, die Informationen werden selbstständig ermittelt.""
  14. Web-2.0-Dienste als Ergänzung zu algorithmischen Suchmaschinen (2008) 0.01 
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    Issue
    Ergebnisse des Fachprojektes "Einbindung von Frage-Antwort-Diensten in die Web-Suche" am Department Information der Hochschule für Angewandte Wissenschaften Hamburg (WS 2007/2008).
  15. Sullivan D.: How search engines work (1998) 0.01 
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  16. ¬Die Googleisierung der Informationssuche : Suchmaschinen zwischen Nutzung und Regulierung (2014) 0.01 
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    RSWK
    Suchmaschine / Recherche / Suchverfahren / Aufsatzsammlung
    Suchmaschine / Benutzer / Informationskompetenz / Aufsatzsammlung
    Google / Internet / Information Retrieval / Aufsatzsammlung
    Subject
    Suchmaschine / Recherche / Suchverfahren / Aufsatzsammlung
    Suchmaschine / Benutzer / Informationskompetenz / Aufsatzsammlung
    Google / Internet / Information Retrieval / Aufsatzsammlung
  17. Berget, G.; Sandnes, F.E.: Do autocomplete functions reduce the impact of dyslexia on information-searching behavior? : the case of Google (2016) 0.01 
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    Abstract
    Dyslexic users often do not exhibit spelling and reading skills at a level required to perform effective search. To explore whether autocomplete functions reduce the impact of dyslexia on information searching, 20 participants with dyslexia and 20 controls solved 10 predefined tasks in the search engine Google. Eye-tracking and screen-capture documented the searches. There were no significant differences between the dyslexic students and the controls in time usage, number of queries, query lengths, or the use of the autocomplete function. However, participants with dyslexia made more misspellings and looked less at the screen and the autocomplete suggestions lists while entering the queries. The results indicate that although the autocomplete function supported the participants in the search process, a more extensive use of the autocomplete function would have reduced misspellings. Further, the high tolerance for spelling errors considerably reduced the effect of dyslexia, and may be as important as the autocomplete function.
  18. Gossen, T.: Search engines for children : search user interfaces and information-seeking behaviour (2016) 0.01 
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    Abstract
    The doctoral thesis of Tatiana Gossen formulates criteria and guidelines on how to design the user interfaces of search engines for children. In her work, the author identifies the conceptual challenges based on own and previous user studies and addresses the changing characteristics of the users by providing a means of adaptation. Additionally, a novel type of search result visualisation for children with cartoon style characters is developed taking children's preference for visual information into account.
    Content
    Inhalt: Acknowledgments; Abstract; Zusammenfassung; Contents; List of Figures; List of Tables; List of Acronyms; Chapter 1 Introduction ; 1.1 Research Questions; 1.2 Thesis Outline; Part I Fundamentals ; Chapter 2 Information Retrieval for Young Users ; 2.1 Basics of Information Retrieval; 2.1.1 Architecture of an IR System; 2.1.2 Relevance Ranking; 2.1.3 Search User Interfaces; 2.1.4 Targeted Search Engines; 2.2 Aspects of Child Development Relevant for Information Retrieval Tasks; 2.2.1 Human Cognitive Development; 2.2.2 Information Processing Theory; 2.2.3 Psychosocial Development 2.3 User Studies and Evaluation2.3.1 Methods in User Studies; 2.3.2 Types of Evaluation; 2.3.3 Evaluation with Children; 2.4 Discussion; Chapter 3 State of the Art ; 3.1 Children's Information-Seeking Behaviour; 3.1.1 Querying Behaviour; 3.1.2 Search Strategy; 3.1.3 Navigation Style; 3.1.4 User Interface; 3.1.5 Relevance Judgement; 3.2 Existing Algorithms and User Interface Concepts for Children; 3.2.1 Query; 3.2.2 Content; 3.2.3 Ranking; 3.2.4 Search Result Visualisation; 3.3 Existing Information Retrieval Systems for Children; 3.3.1 Digital Book Libraries; 3.3.2 Web Search Engines 3.4 Summary and DiscussionPart II Studying Open Issues ; Chapter 4 Usability of Existing Search Engines for Young Users ; 4.1 Assessment Criteria; 4.1.1 Criteria for Matching the Motor Skills; 4.1.2 Criteria for Matching the Cognitive Skills; 4.2 Results; 4.2.1 Conformance with Motor Skills; 4.2.2 Conformance with the Cognitive Skills; 4.2.3 Presentation of Search Results; 4.2.4 Browsing versus Searching; 4.2.5 Navigational Style; 4.3 Summary and Discussion; Chapter 5 Large-scale Analysis of Children's Queries and Search Interactions; 5.1 Dataset; 5.2 Results; 5.3 Summary and Discussion Chapter 6 Differences in Usability and Perception of Targeted Web Search Engines between Children and Adults 6.1 Related Work; 6.2 User Study; 6.3 Study Results; 6.4 Summary and Discussion; Part III Tackling the Challenges ; Chapter 7 Search User Interface Design for Children ; 7.1 Conceptual Challenges and Possible Solutions; 7.2 Knowledge Journey Design; 7.3 Evaluation; 7.3.1 Study Design; 7.3.2 Study Results; 7.4 Voice-Controlled Search: Initial Study; 7.4.1 User Study; 7.5 Summary and Discussion; Chapter 8 Addressing User Diversity ; 8.1 Evolving Search User Interface 8.1.1 Mapping Function8.1.2 Evolving Skills; 8.1.3 Detection of User Abilities; 8.1.4 Design Concepts; 8.2 Adaptation of a Search User Interface towards User Needs; 8.2.1 Design & Implementation; 8.2.2 Search Input; 8.2.3 Result Output; 8.2.4 General Properties; 8.2.5 Configuration and Further Details; 8.3 Evaluation; 8.3.1 Study Design; 8.3.2 Study Results; 8.3.3 Preferred UI Settings; 8.3.4 User satisfaction; 8.4 Knowledge Journey Exhibit; 8.4.1 Hardware; 8.4.2 Frontend; 8.4.3 Backend; 8.5 Summary and Discussion; Chapter 9 Supporting Visual Searchers in Processing Search Results 9.1 Related Work
    Date
    1. 2.2016 18:25:22
  19. Loia, V.; Pedrycz, W.; Senatore, S.; Sessa, M.I.: Web navigation support by means of proximity-driven assistant agents (2006) 0.01 
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    Abstract
    The explosive growth of the Web and the consequent exigency of the Web personalization domain have gained a key position in the direction of customization of the Web information to the needs of specific users, taking advantage of the knowledge acquired from the analysis of the user's navigational behavior (usage data) in correlation with other information collected in the Web context, namely, structure, content, and user profile data. This work presents an agent-based framework designed to help a user in achieving personalized navigation, by recommending related documents according to the user's responses in similar-pages searching mode. Our agent-based approach is grounded in the integration of different techniques and methodologies into a unique platform featuring user profiling, fuzzy multisets, proximity-oriented fuzzy clustering, and knowledge-based discovery technologies. Each of these methodologies serves to solve one facet of the general problem (discovering documents relevant to the user by searching the Web) and is treated by specialized agents that ultimately achieve the final functionality through cooperation and task distribution.
    Date
    22. 7.2006 16:59:13
  20. Chaudiron, S.; Ihadjadene, M.: Studying Web search engines from a user perspective : key concepts and main approaches (2012) 0.01 
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    Abstract
    This chapter shows that the wider use of Web search engines, reconsidering the theoretical and methodological frameworks to grasp new information practices. Beginning with an overview of the recent challenges implied by the dynamic nature of the Web, this chapter then traces the information behavior related concepts in order to present the different approaches from the user perspective. The authors pay special attention to the concept of "information practice" and other related concepts such as "use", "activity", and "behavior" largely used in the literature but not always strictly defined. The authors provide an overview of user-oriented studies that are meaningful to understand the different contexts of use of electronic information access systems, focusing on five approaches: the system-oriented approaches, the theories of information seeking, the cognitive and psychological approaches, the management science approaches, and the marketing approaches. Future directions of work are then shaped, including social searching and the ethical, cultural, and political dimensions of Web search engines. The authors conclude considering the importance of Critical theory to better understand the role of Web Search engines in our modern society.
    Date
    20. 4.2012 13:22:37

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