Search (116 results, page 1 of 6)

0.014842677 = product of:
  0.08905606 = sum of:
    0.08905606 = product of:
      0.13358408 = sum of:
        0.06709381 = weight(_text_:29 in 3339) [ClassicSimilarity], result of:
          0.06709381 = score(doc=3339,freq=2.0), product of:
            0.12330827 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.03505379 = queryNorm
            0.5441145 = fieldWeight in 3339, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.109375 = fieldNorm(doc=3339)
        0.06649026 = weight(_text_:22 in 3339) [ClassicSimilarity], result of:
          0.06649026 = score(doc=3339,freq=2.0), product of:
            0.1227524 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03505379 = queryNorm
            0.5416616 = fieldWeight in 3339, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=3339)
      0.6666667 = coord(2/3)
  0.16666667 = coord(1/6)

Date

22. 5.2005 19:52:29

0.01311045 = product of:
  0.039331347 = sum of:
    0.03299894 = product of:
      0.06599788 = sum of:
        0.06599788 = weight(_text_:web in 1188) [ClassicSimilarity], result of:
          0.06599788 = score(doc=1188,freq=32.0), product of:
            0.11439841 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03505379 = queryNorm
            0.5769126 = fieldWeight in 1188, product of:
              5.656854 = tf(freq=32.0), with freq of:
                32.0 = termFreq=32.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03125 = fieldNorm(doc=1188)
      0.5 = coord(1/2)
    0.0063324063 = product of:
      0.018997218 = sum of:
        0.018997218 = weight(_text_:22 in 1188) [ClassicSimilarity], result of:
          0.018997218 = score(doc=1188,freq=2.0), product of:
            0.1227524 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03505379 = queryNorm
            0.15476047 = fieldWeight in 1188, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03125 = fieldNorm(doc=1188)
      0.33333334 = coord(1/3)
  0.33333334 = coord(2/6)

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

0.011082305 = product of:
  0.033246912 = sum of:
    0.025259553 = product of:
      0.050519105 = sum of:
        0.050519105 = weight(_text_:web in 5229) [ClassicSimilarity], result of:
          0.050519105 = score(doc=5229,freq=12.0), product of:
            0.11439841 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03505379 = queryNorm
            0.4416067 = fieldWeight in 5229, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5229)
      0.5 = coord(1/2)
    0.00798736 = product of:
      0.023962079 = sum of:
        0.023962079 = weight(_text_:29 in 5229) [ClassicSimilarity], result of:
          0.023962079 = score(doc=5229,freq=2.0), product of:
            0.12330827 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.03505379 = queryNorm
            0.19432661 = fieldWeight in 5229, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5229)
      0.33333334 = coord(1/3)
  0.33333334 = coord(2/6)

Abstract

Thirty-one patrons, who were selected by Slone to provide a range of age and experience, agreed when approached while using the catalog of the Wake County library system to try searching via the Internet. Fifteen searched the Wake County online catalog in this manner and 16 searched the World Wide Web, including that catalog. They were subjected to brief pre-structured taped interviews before and after their searches and observed during the searching process resulting in a log of behaviors, comments, pages accessed, and time spent. Data were analyzed across participants and categories. Web searches were characterized as linking, URL, search engine, within a site domain, and searching a web catalog; and participants by the number of these techniques used. Four used only one, 13 used two, 11 used three, two used four, and one all five. Participant experience was characterized as never used, used search engines, browsing experience, email experience, URL experience, catalog experience, and finally chat room/newsgroup experience. Sixteen percent of the participants had never used the Internet, 71% had used search engines, 65% had browsed, 58% had used email, 39% had used URLs, 39% had used online catalogs, and 32% had used chat rooms. The catalog was normally consulted before the web, where both were used, and experience with an online catalog assists in web use. Scrolling was found to be unpopular and practiced halfheartedly.

Date

21. 7.2006 11:26:29

0.011082305 = product of:
  0.033246912 = sum of:
    0.025259553 = product of:
      0.050519105 = sum of:
        0.050519105 = weight(_text_:web in 2046) [ClassicSimilarity], result of:
          0.050519105 = score(doc=2046,freq=12.0), product of:
            0.11439841 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03505379 = queryNorm
            0.4416067 = fieldWeight in 2046, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2046)
      0.5 = coord(1/2)
    0.00798736 = product of:
      0.023962079 = sum of:
        0.023962079 = weight(_text_:29 in 2046) [ClassicSimilarity], result of:
          0.023962079 = score(doc=2046,freq=2.0), product of:
            0.12330827 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.03505379 = queryNorm
            0.19432661 = fieldWeight in 2046, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2046)
      0.33333334 = coord(1/3)
  0.33333334 = coord(2/6)

Abstract

Web searchers commonly have difficulties crafting queries to fulfill their information needs; even after they are able to craft a query, they often find it challenging to evaluate the results of their Web searches. Sources of these problems include the lack of support for constructing and refining queries, and the static nature of the list-based representations of Web search results. WordBars has been developed to assist users in their Web search and exploration tasks. This system provides a visual representation of the frequencies of the terms found in the first 100 document surrogates returned from an initial query, in the form of a histogram. Exploration of the search results is supported through term selection in the histogram, resulting in a re-sorting of the search results based on the use of the selected terms in the document surrogates. Terms from the histogram can be easily added or removed from the query, generating a new set of search results. Examples illustrate how WordBars can provide valuable support for query refinement and search results exploration, both when vague and specific initial queries are provided. User evaluations with both expert and intermediate Web searchers illustrate the benefits of the interactive exploration features of WordBars in terms of effectiveness as well as subjective measures. Although differences were found in the demographics of these two user groups, both were able to benefit from the features of WordBars.

Date

29. 7.2008 15:30:02

0.010348691 = product of:
  0.031046072 = sum of:
    0.023058712 = product of:
      0.046117425 = sum of:
        0.046117425 = weight(_text_:web in 2044) [ClassicSimilarity], result of:
          0.046117425 = score(doc=2044,freq=10.0), product of:
            0.11439841 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03505379 = queryNorm
            0.40312994 = fieldWeight in 2044, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2044)
      0.5 = coord(1/2)
    0.00798736 = product of:
      0.023962079 = sum of:
        0.023962079 = weight(_text_:29 in 2044) [ClassicSimilarity], result of:
          0.023962079 = score(doc=2044,freq=2.0), product of:
            0.12330827 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.03505379 = queryNorm
            0.19432661 = fieldWeight in 2044, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2044)
      0.33333334 = coord(1/3)
  0.33333334 = coord(2/6)

Abstract

Categorized overviews of web search results are a promising way to support user exploration, understanding, and discovery. These search interfaces combine a metadata-based overview with the list of search results to enable a rich form of interaction. A study of 24 sophisticated users carrying out complex tasks suggests how searchers may adapt their search tactics when using categorized overviews. This mixed methods study evaluated categorized overviews of web search results organized into thematic, geographic, and government categories. Participants conducted four exploratory searches during a 2-hour session to generate ideas for newspaper articles about specified topics such as "human smuggling." Results showed that subjects explored deeper while feeling more organized, and that the categorized overview helped subjects better assess their results, although no significant differences were detected in the quality of the article ideas. A qualitative analysis of searcher comments identified seven tactics that participants reported adopting when using categorized overviews. This paper concludes by proposing a set of guidelines for the design of exploratory search interfaces. An understanding of the impact of categorized overviews on search tactics will be useful to web search researchers, search interface designers, information architects and web developers.

Date

29. 7.2008 15:27:58

0.010324741 = product of:
  0.03097422 = sum of:
    0.023058712 = product of:
      0.046117425 = sum of:
        0.046117425 = weight(_text_:web in 2603) [ClassicSimilarity], result of:
          0.046117425 = score(doc=2603,freq=10.0), product of:
            0.11439841 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03505379 = queryNorm
            0.40312994 = fieldWeight in 2603, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2603)
      0.5 = coord(1/2)
    0.007915508 = product of:
      0.023746524 = sum of:
        0.023746524 = weight(_text_:22 in 2603) [ClassicSimilarity], result of:
          0.023746524 = score(doc=2603,freq=2.0), product of:
            0.1227524 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03505379 = queryNorm
            0.19345059 = fieldWeight in 2603, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2603)
      0.33333334 = coord(1/3)
  0.33333334 = coord(2/6)

Abstract

Purpose - This paper aims to report the result of follow-up research on end-users' conceptions of information visibility on the web and their conceptualizations of success and failure in web searching. Design/methodology/approach - The data were collected by a questionnaire followed by a brief interview with the participants. The questionnaire was developed based on the information visibility model suggested by the author in the original study. Fifty-two library and information sciences students from Tarbiat Mollem University (TMU) and Iran University of Medical Sciences (IUMS) in Tehran took part in the study. Findings - The model of information visibility can enable web users to gain a better understanding of their information seeking (IS) outcomes and it can assist them to improve their information literacy skills. The model can provide a theoretical framework to investigate web users' IS behavior and can be used as a diagnostic tool to explore the contextual and conceptual elements affecting the visibility of information for end-users. Research limitations/implications - The paper suggests a visibility learning diary (VLD), which might be useful to measure the efficiency of information literacy training courses. Originality/value - The contextual and conceptual approach of the paper provides a deeper insight into the issue of information visibility, which has received little attention by IS and information retrieval researchers until now.

Date

1. 1.2009 10:22:40

0.008592237 = product of:
  0.02577671 = sum of:
    0.017861202 = product of:
      0.035722405 = sum of:
        0.035722405 = weight(_text_:web in 5493) [ClassicSimilarity], result of:
          0.035722405 = score(doc=5493,freq=6.0), product of:
            0.11439841 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03505379 = queryNorm
            0.3122631 = fieldWeight in 5493, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5493)
      0.5 = coord(1/2)
    0.007915508 = product of:
      0.023746524 = sum of:
        0.023746524 = weight(_text_:22 in 5493) [ClassicSimilarity], result of:
          0.023746524 = score(doc=5493,freq=2.0), product of:
            0.1227524 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03505379 = queryNorm
            0.19345059 = fieldWeight in 5493, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5493)
      0.33333334 = coord(1/3)
  0.33333334 = coord(2/6)

Abstract

Purpose Web search is more and more moving into mobile contexts. However, screen size of mobile devices is limited and search engine result pages face a trade-off between offering informative snippets and optimal use of space. One factor clearly influencing this trade-off is snippet length. The purpose of this paper is to find out what snippet size to use in mobile web search. Design/methodology/approach For this purpose, an eye-tracking experiment was conducted showing participants search interfaces with snippets of one, three or five lines on a mobile device to analyze 17 dependent variables. In total, 31 participants took part in the study. Each of the participants solved informational and navigational tasks. Findings Results indicate a strong influence of page fold on scrolling behavior and attention distribution across search results. Regardless of query type, short snippets seem to provide too little information about the result, so that search performance and subjective measures are negatively affected. Long snippets of five lines lead to better performance than medium snippets for navigational queries, but to worse performance for informational queries. Originality/value Although space in mobile search is limited, this study shows that longer snippets improve usability and user experience. It further emphasizes that page fold plays a stronger role in mobile than in desktop search for attention distribution.

Date

20. 1.2015 18:30:22

0.0076878346 = product of:
  0.046127006 = sum of:
    0.046127006 = sum of:
      0.02182675 = weight(_text_:web in 312) [ClassicSimilarity], result of:
        0.02182675 = score(doc=312,freq=14.0), product of:
          0.11439841 = queryWeight, product of:
            3.2635105 = idf(docFreq=4597, maxDocs=44218)
            0.03505379 = queryNorm
          0.19079591 = fieldWeight in 312, product of:
            3.7416575 = tf(freq=14.0), with freq of:
              14.0 = termFreq=14.0
            3.2635105 = idf(docFreq=4597, maxDocs=44218)
            0.015625 = fieldNorm(doc=312)
      0.024300257 = weight(_text_:seite in 312) [ClassicSimilarity], result of:
        0.024300257 = score(doc=312,freq=2.0), product of:
          0.19633847 = queryWeight, product of:
            5.601063 = idf(docFreq=443, maxDocs=44218)
            0.03505379 = queryNorm
          0.12376717 = fieldWeight in 312, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.601063 = idf(docFreq=443, maxDocs=44218)
            0.015625 = fieldNorm(doc=312)
  0.16666667 = coord(1/6)

Abstract

How do you find your way in an age of information overload? How can you filter streams of complex information to pull out only what you want? Why does it matter how information is structured when Google seems to magically bring up the right answer to your questions? What does it mean to be "findable" in this day and age? This eye-opening new book examines the convergence of information and connectivity. Written by Peter Morville, author of the groundbreakin Information Architecture for the World Wide Web, the book defines our current age as a state of unlimited findability. In other words, anyone can find anything at any time. Complete navigability. Morville discusses the Internet, GIS, and other network technologies that are coming together to make unlimited findability possible. He explores how the melding of these innovations impacts society, since Web access is now a standard requirement for successful people and businesses. But before he does that, Morville looks back at the history of wayfinding and human evolution, suggesting that our fear of being lost has driven us to create maps, charts, and now, the mobile Internet.

Footnote

Rez. in: nfd - Information Wissenschaft und Praxis 57(2006) H.3, S.177-178 (D. Lewandowski): "Wohl unbestritten ist, dass die Suche in Informationsbeständen eine immer größere Bedeutung erhält. Wir suchen nicht nur noch explizit, indem wir ein Informationssystem anwählen und dort eine Suche absetzen, sondern verwenden Suchfunktionen innerhalb von Programmen, auf Websites, innerhalb des Betriebssystems unseres Computers oder sogar ziemlich unbewusst, indem wir Informationen maßgeschneidert aufgrund einer einmal hinterlegten Suche oder eines automatisch erstellten Suchprofils erhalten. Man kann also in der Tat davon sprechen, dass wir von der Suche umgeben werden. Das ist mit dem Konzept der "Ambient Findability" gemeint. Angelehnt ist diese Bezeichnung an den Begriff der "Ambient Music" (in den 70er Jahren durch Brian Eno geprägt), die den Hörer umgibt und von ihm oft gar nicht aktiv wahrgenommen wird. Um eine Vorstellung von dieser Musik zu bekommen, eignet sich vielleicht am besten der Titel einer Platte eben von Brian Eno: "Music for Airports". Peter Morville, bekannt als Co-Autor des empfehlenswerten Buchs "Information Architecture for the World Wide Web"', hat sich nun mit der Veränderung der Suche auseinandergesetzt. Sein Buch bedient sich in ganz unterschiedlichen Disziplinen, um die Prozesse des Suchens, Stöberns und Findens aufzuzeigen. So finden sich Betrachtungen über die Orientierung des Menschen in unbekannten Umgebungen, über die Interaktion mit Informationssystemen, über das soziale Verhalten der Web-Nutzer (Stichworte: Content-Tagging, Folksonomies, Social Networking) und über technische Veränderungen durch die Verfügbarkeit von Informationssystemen in allen Lebenskontexten, vor allem auch über mobile Endgeräte. Das Buch ist in sieben Kapitel gegliedert. Das erste, "Lost and Found" betitelt, bietet auf wenigen Seiten die Definitionen der zentralen Begriffe ambient und findability, erläutert kurz das Konzept der Information Literacy und zeigt, dass die bessere Auffindbarkeit von Informationen nicht nur ein schöner Zusatznutzen ist, sondern sich für Unternehmen deutlich auszahlt.
Das zweite Kapitel ("A Brief History of Wayfinding") beschreibt, wie Menschen sich in Umgebungen zurechtfinden. Dies ist insofern interessant, als hier nicht erst bei Informationssystemen oder dem WWW begonnen wird, sondern allgemeine Erkenntnisse beispielsweise über die Orientierung in natürlichen Umgebungen präsentiert werden. Viele typische Verhaltensweisen der Nutzer von Informationssystemen können so erklärt werden. So interessant dieses Thema allerdings ist, wirkt das Kapitel leider doch nur wie eine Zusammenstellung von Informationen aus zweiter Hand. Offensichtlich ist, dass Morville nicht selbst an diesen Themen geforscht hat, sondern die Ergebnisse (wenn auch auf ansprechende Weise) zusammengeschrieben hat. Dieser Eindruck bestätigt sich auch in weiteren Kapiteln: Ein flüssig geschriebener Text, der es jedoch an einigen Stellen an Substanz fehlen lässt. Kapitel drei, "Information Interaction" beginnt mit einem Rückgriff auf Calvin Mooers zentrale Aussage aus dem Jahre 1959: "An information retrieval system will tend not to be used whenever it is more painful and troublesome for a customer to have information than for him not to have it." In der Tat sollte man sich dies bei der Erstellung von Informationssystemen immer vergegenwärtigen; die Reihe der Systeme, die gerade an dieser Hürde gescheitert sind, ist lang. Das weitere Kapitel führt in einige zentrale Konzepte der Informationswissenschaft (Definition des Begriffs Information, Erläuterung des Information Retrieval, Wissensrepräsentation, Information Seeking Behaviour) ein, allerdings ohne jeden Anspruch auf Vollständigkeit. Es wirkt vielmehr so, dass der Autor sich die gerade für sein Anliegen passenden Konzepte auswählt und konkurrierende Ansätze beiseite lässt. Nur ein Beispiel: Im Abschnitt "Information Interaction" wird relativ ausführlich das Konzept des Berrypicking nach Marcia J. Bates präsentiert, allerdings wird es geradezu als exklusiv verkauft, was es natürlich bei weitem nicht ist. Natürlich kann es nicht Aufgabe dieses Buchs sein, einen vollständigen Überblick über alle Theorien des menschlichen Suchverhaltens zu geben (dies ist an anderer Stelle vorbildlich geleistet worden'), aber doch wenigstens der Hinweis auf einige zentrale Ansätze wäre angebracht gewesen. Spätestens in diesem Kapitel wird klar, dass das Buch sich definitiv nicht an Informationswissenschaftler wendet, die auf der einen Seite mit den grundlegenden Themen vertraut sein dürften, andererseits ein wenig mehr Tiefgang erwarten würden. Also stellt sich die Frage - und diese ist zentral für die Bewertung des gesamten Werks.
Im Kapitel über das "Sociosemantic Web" werden die groben Grundzüge der Klassifikationslehre erläutert, um dann ausführlich auf neuere Ansätze der Web-Erschließung wie Social Tagging und Folksonomies einzugehen. Auch dieses Kapitel gibt eher einen Überblick als den schon Kundigen vertiefende Informationen zu liefern. Das letzte Kapitel widmet sich schließlich der Art, wie Entscheidungen getroffen werden, der Network Culture, dem Information Overload, um schließlich zu den "Inspired Decisions" zu gelangen - Entscheidungen, die sowohl auf "sachlichen Informationen" (also den klassischen Zutaten der "informed decisions") als auch aus aus Netzwerken stammenden Informationen wie etwa Empfehlungen durch Freunde oder Community-Mitglieder irgendeiner Art gewonnen werden. Fasst man zusammen, so ist an Morvilles Text besonders bemerkenswert, dass nach einigen Jahren, in denen die Suche im Web als ein Problem der Suche in unstrukturierten Daten angesehen wurde, nun wieder verstärkt Erschließungsansätze, die auf klassische Erschließungsinstrumente zurückgreifen, propagiert werden. Zwar sollen sie nicht in ihrer ursprünglichen Form angewandt werden, da den Nutzern nicht zuzumuten ist, sich mit den entsprechenden Regeln auseinanderzusetzen, aber auch hinter der auf den ersten Blick zumindest chaotisch wirkenden Folksonomy ist das Prinzip der Klassifikation zu erkennen. Um die modernen Ansätze erfolgreich zu machen, bedarf es aber dringend Information Professionals, die das "beste aus beiden Welten" verbinden, um moderne, für den Nutzer optimale Informationssysteme zu schaffen. Für die Gesamtbewertung des Buchs gelten die bereits zu einzelnen Kapitels angeführten Kritikpunkte: In erster Linie bleibt das Buch zu sehr an der Oberfläche und wirkt irgendwie "zusammengeschrieben" anstatt als Ergebnis der tiefgreifenden Beschäftigung mit dem Thema. Als eine Einführung in aufkommende Technologien rund um die Suche ist es aber durchaus geeignet - gut lesbar ist der Text auf jeden Fall.

0.007291071 = product of:
  0.021873213 = sum of:
    0.012374603 = product of:
      0.024749206 = sum of:
        0.024749206 = weight(_text_:web in 2404) [ClassicSimilarity], result of:
          0.024749206 = score(doc=2404,freq=2.0), product of:
            0.11439841 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03505379 = queryNorm
            0.21634221 = fieldWeight in 2404, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.046875 = fieldNorm(doc=2404)
      0.5 = coord(1/2)
    0.009498609 = product of:
      0.028495826 = sum of:
        0.028495826 = weight(_text_:22 in 2404) [ClassicSimilarity], result of:
          0.028495826 = score(doc=2404,freq=2.0), product of:
            0.1227524 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03505379 = queryNorm
            0.23214069 = fieldWeight in 2404, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=2404)
      0.33333334 = coord(1/3)
  0.33333334 = coord(2/6)

Date

25.12.1998 19:22:31

0.0068737897 = product of:
  0.020621369 = sum of:
    0.014288962 = product of:
      0.028577924 = sum of:
        0.028577924 = weight(_text_:web in 1628) [ClassicSimilarity], result of:
          0.028577924 = score(doc=1628,freq=6.0), product of:
            0.11439841 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03505379 = queryNorm
            0.24981049 = fieldWeight in 1628, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03125 = fieldNorm(doc=1628)
      0.5 = coord(1/2)
    0.0063324063 = product of:
      0.018997218 = sum of:
        0.018997218 = weight(_text_:22 in 1628) [ClassicSimilarity], result of:
          0.018997218 = score(doc=1628,freq=2.0), product of:
            0.1227524 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03505379 = queryNorm
            0.15476047 = fieldWeight in 1628, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03125 = fieldNorm(doc=1628)
      0.33333334 = coord(1/3)
  0.33333334 = coord(2/6)

Abstract

Purpose - The purpose of this paper is to propose the Collaborative Search System that attempts to achieve collaboration by implicitly identifying and reflecting search behaviour of collaborators in an academic network that is automatically and dynamically formed. By using the constructed Collaborative Hit Matrix (CHM), results are obtained that are based on the search behaviour and earned preferences of specialist communities of researchers, which are relevant to the user's need and reduce the time spent on bad links. Design/methodology/approach - By using the Digital Bibliography Library Project (DBLP), the research communities are formed implicitly and dynamically based on the users' research presence in the search environment and in the publication scenario, which is also used to assign users' roles and establish links between the users. The CHM, to store the hit count and hit list of page results for queries, is also constructed and updated after every search session to enhance the collaborative search among the researchers. Findings - The implicit researchers community formation, the assignment and dynamic updating of roles of the researchers based on research, search presence and search behaviour on the web as well as the usage of these roles during Collaborative Web Search have highly improved the relevancy of results. The CHM that holds the collaborative responses provided by the researchers on the search query results to support searching distinguishes this system from others. Thus the proposed system considerably improves the relevancy and reduces the time spent on bad links, thus improving recall and precision. Originality/value - The research findings illustrate the better performance of the system, by connecting researchers working in the same field and allowing them to help each other in a web search environment.

Date

20. 1.2015 18:30:22

0.0063661356 = product of:
  0.038196813 = sum of:
    0.038196813 = product of:
      0.07639363 = sum of:
        0.07639363 = weight(_text_:web in 245) [ClassicSimilarity], result of:
          0.07639363 = score(doc=245,freq=14.0), product of:
            0.11439841 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03505379 = queryNorm
            0.6677857 = fieldWeight in 245, product of:
              3.7416575 = tf(freq=14.0), with freq of:
                14.0 = termFreq=14.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.0546875 = fieldNorm(doc=245)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)

Abstract

A study of the "real world" Web information searching behavior of 206 college students over a 10-month period showed that, contrary to expectations, the users adopted a more passive or browsing approach to Web information searching and became more eclectic in their selection of Web hosts as they gained experience. The study used a longitudinal transaction log analysis of the URLs accessed during 5,431 user days of Web information searching to detect changes in information searching behavior associated with increased experience of using the Web. The findings have implications for the design of future Web information retrieval tools

0.006361147 = product of:
  0.03816688 = sum of:
    0.03816688 = product of:
      0.05725032 = sum of:
        0.028754493 = weight(_text_:29 in 3612) [ClassicSimilarity], result of:
          0.028754493 = score(doc=3612,freq=2.0), product of:
            0.12330827 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.03505379 = queryNorm
            0.23319192 = fieldWeight in 3612, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.046875 = fieldNorm(doc=3612)
        0.028495826 = weight(_text_:22 in 3612) [ClassicSimilarity], result of:
          0.028495826 = score(doc=3612,freq=2.0), product of:
            0.1227524 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03505379 = queryNorm
            0.23214069 = fieldWeight in 3612, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=3612)
      0.6666667 = coord(2/3)
  0.16666667 = coord(1/6)

Date

2. 7.2005 12:22:50

Source

Gaining insight from research information (CRIS2002): Proceedings of the 6th International Conference an Current Research Information Systems, University of Kassel, August 29 - 31, 2002. Eds: W. Adamczak u. A. Nase

0.0059537343 = product of:
  0.035722405 = sum of:
    0.035722405 = product of:
      0.07144481 = sum of:
        0.07144481 = weight(_text_:web in 3623) [ClassicSimilarity], result of:
          0.07144481 = score(doc=3623,freq=24.0), product of:
            0.11439841 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03505379 = queryNorm
            0.6245262 = fieldWeight in 3623, product of:
              4.8989797 = tf(freq=24.0), with freq of:
                24.0 = termFreq=24.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3623)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)

Abstract

Purpose - This paper aims to report findings from an exploratory study investigating the web interactions and technoliteracy of children in the early childhood years. Previous research has studied aspects of older children's technoliteracy and web searching; however, few studies have analyzed web search data from children younger than six years of age. Design/methodology/approach - The study explored the Google web searching and technoliteracy of young children who are enrolled in a "preparatory classroom" or kindergarten (the year before young children begin compulsory schooling in Queensland, Australia). Young children were video- and audio-taped while conducting Google web searches in the classroom. The data were qualitatively analysed to understand the young children's web search behaviour. Findings - The findings show that young children engage in complex web searches, including keyword searching and browsing, query formulation and reformulation, relevance judgments, successive searches, information multitasking and collaborative behaviours. The study results provide significant initial insights into young children's web searching and technoliteracy. Practical implications - The use of web search engines by young children is an important research area with implications for educators and web technologies developers. Originality/value - This is the first study of young children's interaction with a web search engine.

0.005499824 = product of:
  0.03299894 = sum of:
    0.03299894 = product of:
      0.06599788 = sum of:
        0.06599788 = weight(_text_:web in 6333) [ClassicSimilarity], result of:
          0.06599788 = score(doc=6333,freq=2.0), product of:
            0.11439841 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03505379 = queryNorm
            0.5769126 = fieldWeight in 6333, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.125 = fieldNorm(doc=6333)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)

0.005380366 = product of:
  0.032282196 = sum of:
    0.032282196 = product of:
      0.06456439 = sum of:
        0.06456439 = weight(_text_:web in 2277) [ClassicSimilarity], result of:
          0.06456439 = score(doc=2277,freq=10.0), product of:
            0.11439841 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03505379 = queryNorm
            0.5643819 = fieldWeight in 2277, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2277)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)

Abstract

This article reviews studies, conducted between 1995 and 2000, on Web search behavior. These studies reported on children as well as on adults. Most of the studies on children described their interaction with the Web. Research on adult searchers focused on describing search patterns, and many studies investigated effects of selected factors on search behavior, including information organization and presentation, type of search task, Web experience, cognitive abilities, and affective states. What distinguishes the research on adult searchers is the use of multiple data-gathering methods. The research on Web search behavior reflects researchers' commitment to examine users in their information environment and exhibits rigor in design and data analysis. However, many studies lack external validity. Implications of this body of research are discussed.

0.0048612035 = product of:
  0.02916722 = sum of:
    0.02916722 = product of:
      0.05833444 = sum of:
        0.05833444 = weight(_text_:web in 600) [ClassicSimilarity], result of:
          0.05833444 = score(doc=600,freq=16.0), product of:
            0.11439841 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03505379 = queryNorm
            0.5099235 = fieldWeight in 600, product of:
              4.0 = tf(freq=16.0), with freq of:
                16.0 = termFreq=16.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.0390625 = fieldNorm(doc=600)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)

Abstract

Recent studies show that humans engage in multitasking behaviors as they seek and search information retrieval (IR) systems for information on more than one topic at the same time. For example, a Web search session by a single user may consist of searching on single topics or multitasking. Findings are presented from four separate studies of the prevalence of multitasking information seeking and searching by Web, IR system, and library users. Incidence of multitasking identified in the four different studies included: (1) users of the Excite Web search engine who completed a survey form, (2) Excite Web search engine users filtered from an Excite transaction log from 20 December 1999, (3) mediated on-line databases searches, and (4) academic library users. Findings include: (1) multitasking information seeking and searching is a common human behavior, (2) users may conduct information seeking and searching on related or unrelated topics, (3) Web or IR multitasking search sessions are longer than single topic sessions, (4) mean number of topics per Web search ranged of 1 to more than 10 topics with a mean of 2.11 topic changes per search session, and (4) many Web search topic changes were from hobbies to shopping and vice versa. A more complex model of human seeking and searching levels that incorporates multitasking information behaviors is presented, and a theoretical framework for human information coordinating behavior (HICB) is proposed. Multitasking information seeking and searching is developing as major research area that draws together IR and information seeking studies toward a focus on IR within the context of human information behavior. Implications for models of information seeking and searching, IR/Web systems design, and further research are discussed.

0.0048612035 = product of:
  0.02916722 = sum of:
    0.02916722 = product of:
      0.05833444 = sum of:
        0.05833444 = weight(_text_:web in 3831) [ClassicSimilarity], result of:
          0.05833444 = score(doc=3831,freq=4.0), product of:
            0.11439841 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03505379 = queryNorm
            0.5099235 = fieldWeight in 3831, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.078125 = fieldNorm(doc=3831)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)

0.0048612035 = product of:
  0.02916722 = sum of:
    0.02916722 = product of:
      0.05833444 = sum of:
        0.05833444 = weight(_text_:web in 335) [ClassicSimilarity], result of:
          0.05833444 = score(doc=335,freq=16.0), product of:
            0.11439841 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03505379 = queryNorm
            0.5099235 = fieldWeight in 335, product of:
              4.0 = tf(freq=16.0), with freq of:
                16.0 = termFreq=16.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.0390625 = fieldNorm(doc=335)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)

Abstract

Previous studies have examined various aspects of user behavior on the Web, including general information-seeking patterns, search engine use, and revisitation habits. Little research has been conducted to study how users navigate and interact with their Web browser across different information-seeking tasks. We have conducted a field study of 21 participants, in which we logged detailed Web usage and asked participants to provide task categorizations of their Web usage based on the following categories: Fact Finding, Information Gathering, Browsing, and Transactions. We used implicit measures logged during each task session to provide usage measures such as dwell time, number of pages viewed, and the use of specific browser navigation mechanisms. We also report on differences in how participants interacted with their Web browser across the range of information-seeking tasks. Within each type of task, we found several distinguishing characteristics. In particular, Information Gathering tasks were the most complex; participants spent more time completing this task, viewed more pages, and used the Web browser functions most heavily during this task. The results of this analysis have been used to provide implications for future support of information seeking on the Web as well as direction for future research in this area.

0.0048612035 = product of:
  0.02916722 = sum of:
    0.02916722 = product of:
      0.05833444 = sum of:
        0.05833444 = weight(_text_:web in 2095) [ClassicSimilarity], result of:
          0.05833444 = score(doc=2095,freq=16.0), product of:
            0.11439841 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03505379 = queryNorm
            0.5099235 = fieldWeight in 2095, product of:
              4.0 = tf(freq=16.0), with freq of:
                16.0 = termFreq=16.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2095)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)

Abstract

Despite a number of studies looking at Web experience and Web searching tactics and behaviours, the specific relationships between experience and cognitive search strategies have not been widely researched. This study investigates how the cognitive search strategies of 80 participants might vary with Web experience as they engaged in two researcher-defined tasks and two participant-defined information seeking tasks. Each of the two researcher-defined tasks and participant-defined tasks included a directed search task and a general-purpose browsing task. While there were almost no significant performance differences between experience levels on any of the four tasks, there were significant differences in the use of cognitive search strategies. Participants with higher levels of Web experience were more likely to use "Parallel player", "Parallel hub-and-spoke", "Known address search domain" and "Known address" strategies, whereas participants with lower levels of Web experience were more likely to use "Virtual tourist", "Link-dependent", "To-the-point", "Sequential player", "Search engine narrowing", and "Broad first" strategies. The patterns of use and differences between researcher-defined and participant-defined tasks and between directed search tasks and general-purpose browsing tasks are also discussed, although the distribution of search strategies by Web experience were not statistically significant for each individual task.

0.0048612035 = product of:
  0.02916722 = sum of:
    0.02916722 = product of:
      0.05833444 = sum of:
        0.05833444 = weight(_text_:web in 1281) [ClassicSimilarity], result of:
          0.05833444 = score(doc=1281,freq=16.0), product of:
            0.11439841 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03505379 = queryNorm
            0.5099235 = fieldWeight in 1281, product of:
              4.0 = tf(freq=16.0), with freq of:
                16.0 = termFreq=16.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1281)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)

Abstract

Previous studies have shown that users' cognitive styles play an important role during web searching. However, only a limited number of studies have showed the relationship between cognitive styles and web search behavior. Most importantly, it is not clear which components of web search behavior are influenced by cognitive styles. This article examines the relationships between users' cognitive styles and their web searching and develops a model that portrays the relationship. The study uses qualitative and quantitative analyses based on data gathered from 50 participants. A questionnaire was utilized to collect participants' demographic information, and Riding's (1991) Cognitive Styles Analysis (CSA) test to assess their cognitive styles. Results show that users' cognitive styles influenced their information-searching strategies, query reformulation behavior, web navigational styles, and information-processing approaches. The user model developed in this study depicts the fundamental relationships between users' web search behavior and their cognitive styles. Modeling web search behavior with a greater understanding of users' cognitive styles can help information science researchers and information systems designers to bridge the semantic gap between the user and the systems. Implications of the research for theory and practice, and future work, are discussed.