Search (108 results, page 1 of 6)

  • × theme_ss:"Suchtaktik"
  1. Kules, B.; Shneiderman, B.: Users can change their web search tactics : design guidelines for categorized overviews (2008) 0.06 
    0.062724486 = product of:
  0.12544897 = sum of:
    0.090983436 = weight(_text_:interfaces in 2044) [ClassicSimilarity], result of:
      0.090983436 = score(doc=2044,freq=4.0), product of:
        0.22349821 = queryWeight, product of:
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.04289195 = queryNorm
        0.40708798 = fieldWeight in 2044, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2044)
    0.03446553 = product of:
      0.051698294 = sum of:
        0.022378203 = weight(_text_:systems in 2044) [ClassicSimilarity], result of:
          0.022378203 = score(doc=2044,freq=2.0), product of:
            0.13181444 = queryWeight, product of:
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.04289195 = queryNorm
            0.1697705 = fieldWeight in 2044, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2044)
        0.029320091 = weight(_text_:29 in 2044) [ClassicSimilarity], result of:
          0.029320091 = score(doc=2044,freq=2.0), product of:
            0.15088047 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.04289195 = 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)
      0.6666667 = coord(2/3)
  0.5 = coord(2/4)
    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
    Footnote
    Beitrag eines Themenschwerpunktes "Evaluating exploratory search systems"
  2. Shaw, D.: Bibliographic database searching by graduate students in language and literature : search strategies, system interfaces, and relevance judgements (1995) 0.06 
    0.06045408 = product of:
  0.12090816 = sum of:
    0.10918013 = weight(_text_:interfaces in 5651) [ClassicSimilarity], result of:
      0.10918013 = score(doc=5651,freq=4.0), product of:
        0.22349821 = queryWeight, product of:
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.04289195 = queryNorm
        0.4885056 = fieldWeight in 5651, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.046875 = fieldNorm(doc=5651)
    0.011728036 = product of:
      0.035184108 = sum of:
        0.035184108 = weight(_text_:29 in 5651) [ClassicSimilarity], result of:
          0.035184108 = score(doc=5651,freq=2.0), product of:
            0.15088047 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.04289195 = queryNorm
            0.23319192 = fieldWeight in 5651, 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=5651)
      0.33333334 = coord(1/3)
  0.5 = coord(2/4)
    Abstract
    Reports on a study conducted at Indiana University in the summer of 1993 which observed 10 advanced graduate students in language and literature studies as they conducted literature searches using databases on CD-ROM. Presents a brief review of related literature on relevance judgements, human-computer interaction (HCI) and information seeking behaviour of humanities students. The search strategies of the graduate students under study were found to be typical of humanities scholars, who create large sets and review records quickly to select relevant items. Factors influencing relevance assessments included language, source of publication, author, and length of work. Participants especially appreciated electronic access to the Modern Language Association (MLA) International Bibliography but encountered problems with the controlled vocabulary and analytic entries for books and proceedings. The study has identified problems with database content, presentation and search interfaces which should be considered by system designers
    Date
    8.11.1996 19:42:29
  3. Wu, I.-C.; Vakkari, P.: Effects of subject-oriented visualization tools on search by novices and intermediates (2018) 0.05 
    0.04931235 = product of:
  0.0986247 = sum of:
    0.064335 = weight(_text_:interfaces in 4573) [ClassicSimilarity], result of:
      0.064335 = score(doc=4573,freq=2.0), product of:
        0.22349821 = queryWeight, product of:
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.04289195 = queryNorm
        0.28785467 = fieldWeight in 4573, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4573)
    0.034289695 = product of:
      0.05143454 = sum of:
        0.022378203 = weight(_text_:systems in 4573) [ClassicSimilarity], result of:
          0.022378203 = score(doc=4573,freq=2.0), product of:
            0.13181444 = queryWeight, product of:
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.04289195 = queryNorm
            0.1697705 = fieldWeight in 4573, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4573)
        0.029056335 = weight(_text_:22 in 4573) [ClassicSimilarity], result of:
          0.029056335 = score(doc=4573,freq=2.0), product of:
            0.15020029 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04289195 = queryNorm
            0.19345059 = fieldWeight in 4573, 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=4573)
      0.6666667 = coord(2/3)
  0.5 = coord(2/4)
    Abstract
    This study explores how user subject knowledge influences search task processes and outcomes, as well as how search behavior is influenced by subject-oriented information visualization (IV) tools. To enable integrated searches, the proposed WikiMap + integrates search functions and IV tools (i.e., a topic network and hierarchical topic tree) and gathers information from Wikipedia pages and Google Search results. To evaluate the effectiveness of the proposed interfaces, we design subject-oriented tasks and adopt extended evaluation measures. We recruited 48 novices and 48 knowledgeable users, that is, intermediates, for the evaluation. Our results show that novices using the proposed interface demonstrate better search performance than intermediates using Wikipedia. We therefore conclude that our tools help close the gap between novices and intermediates in information searches. The results also show that intermediates can take advantage of the search tool by leveraging the IV tools to browse subtopics, and formulate better queries with less effort. We conclude that embedding the IV and the search tools in the interface can result in different search behavior but improved task performance. We provide implications to design search systems to include IV features adapted to user levels of subject knowledge to help them achieve better task performance.
    Date
    9.12.2018 16:22:25
  4. Twidale, M.B.; Nichols, D.M.: Collaborative browsing and visualization of the search process (1996) 0.04 
    0.044930514 = product of:
  0.08986103 = sum of:
    0.07720201 = weight(_text_:interfaces in 5827) [ClassicSimilarity], result of:
      0.07720201 = score(doc=5827,freq=2.0), product of:
        0.22349821 = queryWeight, product of:
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.04289195 = queryNorm
        0.3454256 = fieldWeight in 5827, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.046875 = fieldNorm(doc=5827)
    0.012659023 = product of:
      0.037977066 = sum of:
        0.037977066 = weight(_text_:systems in 5827) [ClassicSimilarity], result of:
          0.037977066 = score(doc=5827,freq=4.0), product of:
            0.13181444 = queryWeight, product of:
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.04289195 = queryNorm
            0.28811008 = fieldWeight in 5827, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.046875 = fieldNorm(doc=5827)
      0.33333334 = coord(1/3)
  0.5 = coord(2/4)
    Abstract
    We describe how to support the process of collaborative browsing and how to integrate support for the social aspects of information searching activities into information systems and particularly their interfaces. The use of library resources is often stereotyped as a solitary activity. However, informal observations indicate significant collaboration between users despite the fact that existing systems fail to support this. We describe the Ariadne system which does attempt to support collaboration by providing a visualization of the search process. Storage of search histories as digital object allows them to be manipulated and communicated. An explicit representation of a search history supports discussion of search strategies and concepts by explicit pointing to prior activities even when one of the participants may be a novice lacking the appropriate vocabulary. Several different types of activity, synchronous and asynchronous, remote and co-located, can be supported by search process re-use. We outline some of the issues of privacy concerned with the storage of users' searches
  5. Sachse, J.: ¬The influence of snippet length on user behavior in mobile web search (2019) 0.04 
    0.037010223 = product of:
  0.074020445 = sum of:
    0.064335 = weight(_text_:interfaces in 5493) [ClassicSimilarity], result of:
      0.064335 = score(doc=5493,freq=2.0), product of:
        0.22349821 = queryWeight, product of:
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.04289195 = queryNorm
        0.28785467 = fieldWeight in 5493, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5493)
    0.009685446 = product of:
      0.029056335 = sum of:
        0.029056335 = weight(_text_:22 in 5493) [ClassicSimilarity], result of:
          0.029056335 = score(doc=5493,freq=2.0), product of:
            0.15020029 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04289195 = 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)
  0.5 = coord(2/4)
    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
  6. Wildemuth, B.M.; Jacob, E.K.; Fullington, A.;; Bliek, R. de; Friedman, C.P.: ¬A detailed analysis of end-user search behaviours (1991) 0.04 
    0.035897203 = product of:
  0.071794406 = sum of:
    0.064335 = weight(_text_:interfaces in 2423) [ClassicSimilarity], result of:
      0.064335 = score(doc=2423,freq=2.0), product of:
        0.22349821 = queryWeight, product of:
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.04289195 = queryNorm
        0.28785467 = fieldWeight in 2423, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2423)
    0.007459401 = product of:
      0.022378203 = sum of:
        0.022378203 = weight(_text_:systems in 2423) [ClassicSimilarity], result of:
          0.022378203 = score(doc=2423,freq=2.0), product of:
            0.13181444 = queryWeight, product of:
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.04289195 = queryNorm
            0.1697705 = fieldWeight in 2423, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2423)
      0.33333334 = coord(1/3)
  0.5 = coord(2/4)
    Abstract
    Search statements in this revision process can be viewed as a 'move' in the overall search strategy. Very little is known about how end users develop and revise their search strategies. A study was conducted to analyse the moves made in 244 data base searches conducted by 26 medical students at the University of North Carolina at Chapel Hill. Students search INQUIRER, a data base of facts and concepts in microbiology. The searches were conducted during a 3-week period in spring 1990 and were recorded by the INQUIRER system. Each search statement was categorised, using Fidel's online searching moves (S. Online review 9(1985) S.61-74) and Bates' search tactics (s. JASIS 30(1979) S.205-214). Further analyses indicated that the most common moves were Browse/Specity, Select Exhaust, Intersect, and Vary, and that selection of moves varied by student and by problem. Analysis of search tactics (combinations of moves) identified 5 common search approaches. The results of this study have implcations for future research on search behaviours, for thedesign of system interfaces and data base structures, and for the training of end users
    Source
    ASIS'91: systems understanding people. Proc. of the 54th Annual Meeting of the ASIS, vol.28, Washington, DC, 27.-31.10.1991. Ed.: J.-M. Griffiths
  7. Lucas, W.; Topi, H.: Form and function : the impact of query term and operator usage on Web search results (2002) 0.04 
    0.035897203 = product of:
  0.071794406 = sum of:
    0.064335 = weight(_text_:interfaces in 198) [ClassicSimilarity], result of:
      0.064335 = score(doc=198,freq=2.0), product of:
        0.22349821 = queryWeight, product of:
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.04289195 = queryNorm
        0.28785467 = fieldWeight in 198, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.0390625 = fieldNorm(doc=198)
    0.007459401 = product of:
      0.022378203 = sum of:
        0.022378203 = weight(_text_:systems in 198) [ClassicSimilarity], result of:
          0.022378203 = score(doc=198,freq=2.0), product of:
            0.13181444 = queryWeight, product of:
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.04289195 = queryNorm
            0.1697705 = fieldWeight in 198, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.0390625 = fieldNorm(doc=198)
      0.33333334 = coord(1/3)
  0.5 = coord(2/4)
    Abstract
    Conventional wisdom holds that queries to information retrieval systems will yield more relevant results if they contain multiple topic-related terms and use Boolean and phrase operators to enhance interpretation. Although studies have shown that the users of Web-based search engines typically enter short, term-based queries and rarely use search operators, little information exists concerning the effects of term and operator usage on the relevancy of search results. In this study, search engine users formulated queries on eight search topics. Each query was submitted to the user-specified search engine, and relevancy ratings for the retrieved pages were assigned. Expert-formulated queries were also submitted and provided a basis for comparing relevancy ratings across search engines. Data analysis based on our research model of the term and operator factors affecting relevancy was then conducted. The results show that the difference in the number of terms between expert and nonexpert searches, the percentage of matching terms between those searches, and the erroneous use of nonsupported operators in nonexpert searches explain most of the variation in the relevancy of search results. These findings highlight the need for designing search engine interfaces that provide greater support in the areas of term selection and operator usage
  8. Bhavnani, S.K.: Why is it difficult to find comprehensive information? : implications of information scatter for search and design (2005) 0.04 
    0.035897203 = product of:
  0.071794406 = sum of:
    0.064335 = weight(_text_:interfaces in 3684) [ClassicSimilarity], result of:
      0.064335 = score(doc=3684,freq=2.0), product of:
        0.22349821 = queryWeight, product of:
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.04289195 = queryNorm
        0.28785467 = fieldWeight in 3684, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.0390625 = fieldNorm(doc=3684)
    0.007459401 = product of:
      0.022378203 = sum of:
        0.022378203 = weight(_text_:systems in 3684) [ClassicSimilarity], result of:
          0.022378203 = score(doc=3684,freq=2.0), product of:
            0.13181444 = queryWeight, product of:
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.04289195 = queryNorm
            0.1697705 = fieldWeight in 3684, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3684)
      0.33333334 = coord(1/3)
  0.5 = coord(2/4)
    Abstract
    The rapid development of Web sites providing extensive coverage of a topic, coupled with the development of powerful search engines (designed to help users find such Web sites), suggests that users can easily find comprehensive information about a topic. In domains such as consumer healthcare, finding comprehensive information about a topic is critical as it can improve a patient's judgment in making healthcare decisions, and can encourage higher compliance with treatment. However, recent studies show that despite using powerful search engines, many healthcare information seekers have difficulty finding comprehensive information even for narrow healthcare topics because the relevant information is scattered across many Web sites. To date, no studies have analyzed how facts related to a search topic are distributed across relevant Web pages and Web sites. In this study, the distribution of facts related to five common healthcare topics across high-quality sites is analyzed, and the reasons underlying those distributions are explored. The analysis revealed the existence of few pages that had many facts, many pages that had few facts, and no single page or site that provided all the facts. While such a distribution conforms to other information-related phenomena, a deeper analysis revealed that the distributions were caused by a trade-off between depth and breadth, leading to the existence of general, specialized, and sparse pages. Furthermore, the results helped to make explicit the knowledge needed by searchers to find comprehensive healthcare information, and suggested the motivation to explore distribution-conscious approaches for the development of future search systems, search interfaces, Web page designs, and training.
  9. Huurdeman, H.C.; Kamps, J.: Designing multistage search systems to support the information seeking process (2020) 0.04 
    0.035897203 = product of:
  0.071794406 = sum of:
    0.064335 = weight(_text_:interfaces in 5882) [ClassicSimilarity], result of:
      0.064335 = score(doc=5882,freq=2.0), product of:
        0.22349821 = queryWeight, product of:
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.04289195 = queryNorm
        0.28785467 = fieldWeight in 5882, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5882)
    0.007459401 = product of:
      0.022378203 = sum of:
        0.022378203 = weight(_text_:systems in 5882) [ClassicSimilarity], result of:
          0.022378203 = score(doc=5882,freq=2.0), product of:
            0.13181444 = queryWeight, product of:
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.04289195 = queryNorm
            0.1697705 = fieldWeight in 5882, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5882)
      0.33333334 = coord(1/3)
  0.5 = coord(2/4)
    Abstract
    Due to the advances in information retrieval in the past decades, search engines have become extremely efficient at acquiring useful sources in response to a user's query. However, for more prolonged and complex information seeking tasks, these search engines are not as well suited. During complex information seeking tasks, various stages may occur, which imply varying support needs for users. However, the implications of theoretical information seeking models for concrete search user interfaces (SUI) design are unclear, both at the level of the individual features and of the whole interface. Guidelines and design patterns for concrete SUIs, on the other hand, provide recommendations for feature design, but these are separated from their role in the information seeking process. This chapter addresses the question of how to design SUIs with enhanced support for the macro-level process, first by reviewing previous research. Subsequently, we outline a framework for complex task support, which explicitly connects the temporal development of complex tasks with different levels of support by SUI features. This is followed by a discussion of concrete system examples which include elements of the three dimensions of our framework in an exploratory search and sensemaking context. Moreover, we discuss the connection of navigation with the search-oriented framework. In our final discussion and conclusion, we provide recommendations for designing more holistic SUIs which potentially evolve along with a user's information seeking process.
  10. Hoeber, O.: ¬A study of visually linked keywords to support exploratory browsing in academic search (2022) 0.03 
    0.03342945 = product of:
  0.1337178 = sum of:
    0.1337178 = weight(_text_:interfaces in 644) [ClassicSimilarity], result of:
      0.1337178 = score(doc=644,freq=6.0), product of:
        0.22349821 = queryWeight, product of:
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.04289195 = queryNorm
        0.59829473 = fieldWeight in 644, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.046875 = fieldNorm(doc=644)
  0.25 = coord(1/4)
    Abstract
    While the search interfaces used by common academic digital libraries provide easy access to a wealth of peer-reviewed literature, their interfaces provide little support for exploratory browsing. When faced with a complex search task (such as one that requires knowledge discovery), exploratory browsing is an important first step in an exploratory search process. To more effectively support exploratory browsing, we have designed and implemented a novel academic digital library search interface (KLink Search) with two new features: visually linked keywords and an interactive workspace. To study the potential value of these features, we have conducted a controlled laboratory study with 32 participants, comparing KLink Search to a baseline digital library search interface modeled after that used by IEEE Xplore. Based on subjective opinions, objective performance, and behavioral data, we show the value of adding lightweight visual and interactive features to academic digital library search interfaces to support exploratory browsing.
  11. Morse, P.M.: Browsing and search theory (1973) 0.03 
    0.02724233 = product of:
  0.10896932 = sum of:
    0.10896932 = product of:
      0.16345398 = sum of:
        0.08209625 = weight(_text_:29 in 3339) [ClassicSimilarity], result of:
          0.08209625 = score(doc=3339,freq=2.0), product of:
            0.15088047 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.04289195 = 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)
        0.08135773 = weight(_text_:22 in 3339) [ClassicSimilarity], result of:
          0.08135773 = score(doc=3339,freq=2.0), product of:
            0.15020029 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04289195 = 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)
  0.25 = coord(1/4)
    Date
    22. 5.2005 19:52:29
  12. Koopmans, N.I.: What's your question? : The need for research information from the perspective of different user groups (2002) 0.02 
    0.024226388 = product of:
  0.09690555 = sum of:
    0.09690555 = sum of:
      0.026853843 = weight(_text_:systems in 3612) [ClassicSimilarity], result of:
        0.026853843 = score(doc=3612,freq=2.0), product of:
          0.13181444 = queryWeight, product of:
            3.0731742 = idf(docFreq=5561, maxDocs=44218)
            0.04289195 = queryNorm
          0.2037246 = fieldWeight in 3612, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.0731742 = idf(docFreq=5561, maxDocs=44218)
            0.046875 = fieldNorm(doc=3612)
      0.035184108 = weight(_text_:29 in 3612) [ClassicSimilarity], result of:
        0.035184108 = score(doc=3612,freq=2.0), product of:
          0.15088047 = queryWeight, product of:
            3.5176873 = idf(docFreq=3565, maxDocs=44218)
            0.04289195 = 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)
      0.0348676 = weight(_text_:22 in 3612) [ClassicSimilarity], result of:
        0.0348676 = score(doc=3612,freq=2.0), product of:
          0.15020029 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.04289195 = 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)
  0.25 = coord(1/4)
    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
  13. Hoeber, O.: Human-centred Web search (2012) 0.02 
    0.019300502 = product of:
  0.07720201 = sum of:
    0.07720201 = weight(_text_:interfaces in 102) [ClassicSimilarity], result of:
      0.07720201 = score(doc=102,freq=2.0), product of:
        0.22349821 = queryWeight, product of:
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.04289195 = queryNorm
        0.3454256 = fieldWeight in 102, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.046875 = fieldNorm(doc=102)
  0.25 = coord(1/4)
    Abstract
    People commonly experience difficulties when searching the Web, arising from an incomplete knowledge regarding their information needs, an inability to formulate accurate queries, and a low tolerance for considering the relevance of the search results. While simple and easy to use interfaces have made Web search universally accessible, they provide little assistance for people to overcome the difficulties they experience when their information needs are more complex than simple fact-verification. In human-centred Web search, the purpose of the search engine expands from a simple information retrieval engine to a decision support system. People are empowered to take an active role in the search process, with the search engine supporting them in developing a deeper understanding of their information needs, assisting them in crafting and refining their queries, and aiding them in evaluating and exploring the search results. In this chapter, recent research in this domain is outlined and discussed.
  14. Topi, H.; Lucas, W.: Mix and match : combining terms and operators for successful Web searches (2005) 0.02 
    0.01608375 = product of:
  0.064335 = sum of:
    0.064335 = weight(_text_:interfaces in 1051) [ClassicSimilarity], result of:
      0.064335 = score(doc=1051,freq=2.0), product of:
        0.22349821 = queryWeight, product of:
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.04289195 = queryNorm
        0.28785467 = fieldWeight in 1051, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.0390625 = fieldNorm(doc=1051)
  0.25 = coord(1/4)
    Abstract
    This paper presents a detailed analysis of the structure and components of queries written by experimental participants in a study that manipulated two factors found to affect end-user information retrieval performance: training in Boolean logic and the type of search interface. As reported previously, we found that both Boolean training and the use of an assisted interface improved the participants' ability to find correct responses to information requests. Here, we examine the impact of these training and interface manipulations on the Boolean operators and search terms that comprise the submitted queries. Our analysis shows that both Boolean training and the use of an assisted interface improved the participants' ability to correctly utilize various operators. An unexpected finding is that this training also had a positive impact on term selection. The terms and, to a lesser extent, the operators comprising a query were important factors affecting the participants' performance in query tasks. Our findings demonstrate that even small training interventions can improve the users' search performance and highlight the need for additional information retrieval research into how search interfaces can provide superior support to today's untrained users of the Web.
  15. Niu, X.; Hemminger, B.: Analyzing the interaction patterns in a faceted search interface (2015) 0.02 
    0.01608375 = product of:
  0.064335 = sum of:
    0.064335 = weight(_text_:interfaces in 1824) [ClassicSimilarity], result of:
      0.064335 = score(doc=1824,freq=2.0), product of:
        0.22349821 = queryWeight, product of:
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.04289195 = queryNorm
        0.28785467 = fieldWeight in 1824, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.0390625 = fieldNorm(doc=1824)
  0.25 = coord(1/4)
    Abstract
    Since the adoption of faceted search in a small number of academic libraries in 2006, faceted search interfaces have gained popularity in academic and public libraries. This article clarifies whether faceted search improves the interactions between searchers and library catalogs and sheds light on ways that facets are used during a library search. To study searchers' behaviors in natural situations, we collected from the servers a data set with more than 1.5 million useful search logs. Logs were parsed, statistically analyzed, and manually studied using visualization tools to gain a general understanding of how facets are used in the search process. A user experiment with 24 subjects was conducted to further understand contextual information, such as the searchers' motivations and perceptions. The results indicate that most searchers were able to understand the concept of facets naturally and easily. The faceted search was not able to shorten the search time but was able to improve the search accuracy. Facets were used more for open-ended tasks and difficult tasks that require more effort to learn, investigate, and explore. Overall, the results weaved a detailed "story" about the ways that people use facets and the ways that facets help people use library catalogs.
  16. Berget, G.; MacFarlane, A.: What Is known about the impact of impairments on information seeking and searching? (2020) 0.02 
    0.01608375 = product of:
  0.064335 = sum of:
    0.064335 = weight(_text_:interfaces in 5817) [ClassicSimilarity], result of:
      0.064335 = score(doc=5817,freq=2.0), product of:
        0.22349821 = queryWeight, product of:
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.04289195 = queryNorm
        0.28785467 = fieldWeight in 5817, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.2107263 = idf(docFreq=655, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5817)
  0.25 = coord(1/4)
    Abstract
    Information seeking and access are essential for users in all walks of life, from addressing personal needs such as finding flights to locating information needed to complete work tasks. Over the past decade or so, the general needs of people with impairments have increasingly been recognized as something to be addressed, an issue embedded both in international treaties and in state legislation. The same tendency can be found in research, where a growing number of user studies including people with impairments have been conducted. The purpose of these studies is typically to uncover potential barriers for access to information, especially in the context of inaccessible search user interfaces. This literature review provides an overview of research on the information seeking and searching of users with impairments. The aim is to provide an overview to both researchers and practitioners who work with any of the user groups identified. Some diagnoses are relatively well represented in the literature (for instance, visual impairment), but there is very little work in other areas (for instance, autism) and in some cases no work at all (for instance, aphasia). Gaps are identified in the research, and suggestions are made regarding areas where further research is needed.
  17. Mohan, K.C.: Boolean and nearest neighbour text searching in a multi-strategy retrieval system (1996) 0.01 
    0.013786211 = product of:
  0.055144843 = sum of:
    0.055144843 = product of:
      0.08271726 = sum of:
        0.03580512 = weight(_text_:systems in 7255) [ClassicSimilarity], result of:
          0.03580512 = score(doc=7255,freq=2.0), product of:
            0.13181444 = queryWeight, product of:
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.04289195 = queryNorm
            0.2716328 = fieldWeight in 7255, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.0625 = fieldNorm(doc=7255)
        0.04691214 = weight(_text_:29 in 7255) [ClassicSimilarity], result of:
          0.04691214 = score(doc=7255,freq=2.0), product of:
            0.15088047 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.04289195 = queryNorm
            0.31092256 = fieldWeight in 7255, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0625 = fieldNorm(doc=7255)
      0.6666667 = coord(2/3)
  0.25 = coord(1/4)
    Abstract
    Information retrieval systems based on the Boolean model have been popular for some time. A major challenge to this model has come from the development of approaches based on the vector processing model. Both search strategies are explained and evaluated. Describes an experimental study in an opertational environment to compare the retrieval effectiveness of Boolean and nearest neighbour searching in a multi-strategy retrieval system based on query characteristic variables. Considers the significance of the results of the study
    Source
    Library science with a slant to documentation and information studies. 33(1996) no.1, S.29-38
  18. Bates, M.J.: Information search tactics (1979) 0.01 
    0.013786211 = product of:
  0.055144843 = sum of:
    0.055144843 = product of:
      0.08271726 = sum of:
        0.03580512 = weight(_text_:systems in 2407) [ClassicSimilarity], result of:
          0.03580512 = score(doc=2407,freq=2.0), product of:
            0.13181444 = queryWeight, product of:
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.04289195 = queryNorm
            0.2716328 = fieldWeight in 2407, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.0625 = fieldNorm(doc=2407)
        0.04691214 = weight(_text_:29 in 2407) [ClassicSimilarity], result of:
          0.04691214 = score(doc=2407,freq=2.0), product of:
            0.15088047 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.04289195 = queryNorm
            0.31092256 = fieldWeight in 2407, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0625 = fieldNorm(doc=2407)
      0.6666667 = coord(2/3)
  0.25 = coord(1/4)
    Abstract
    As part of the study of human information search strategy, the concept of the search tactic, or move made to futher a search, is introduced. 29 search tactics are named, defined, and discussed in 4 categories: monitoring, file structure, search formulation, and term. Implications of the search tactics for research in search strategy are considered. The search tactics are inteded to be practically useful in information searching. This approach to searching is designed to be general, yet nontrivial; it is applicable to both bibliographic and reference searches and in both manual and on-line systems
  19. Xie, I.; Joo, S.: Factors affecting the selection of search tactics : tasks, knowledge, process, and systems (2012) 0.01 
    0.010339659 = product of:
  0.041358635 = sum of:
    0.041358635 = product of:
      0.062037952 = sum of:
        0.026853843 = weight(_text_:systems in 2739) [ClassicSimilarity], result of:
          0.026853843 = score(doc=2739,freq=2.0), product of:
            0.13181444 = queryWeight, product of:
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.04289195 = queryNorm
            0.2037246 = fieldWeight in 2739, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.046875 = fieldNorm(doc=2739)
        0.035184108 = weight(_text_:29 in 2739) [ClassicSimilarity], result of:
          0.035184108 = score(doc=2739,freq=2.0), product of:
            0.15088047 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.04289195 = queryNorm
            0.23319192 = fieldWeight in 2739, 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=2739)
      0.6666667 = coord(2/3)
  0.25 = coord(1/4)
    Date
    29. 1.2016 19:02:38
  20. Hsieh-Yee, I.: Search tactics of Web users in searching for texts, graphics, known items and subjects : a search simulation study (1998) 0.01 
    0.010286908 = product of:
  0.04114763 = sum of:
    0.04114763 = product of:
      0.061721444 = sum of:
        0.026853843 = weight(_text_:systems in 2404) [ClassicSimilarity], result of:
          0.026853843 = score(doc=2404,freq=2.0), product of:
            0.13181444 = queryWeight, product of:
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.04289195 = queryNorm
            0.2037246 = fieldWeight in 2404, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.046875 = fieldNorm(doc=2404)
        0.0348676 = weight(_text_:22 in 2404) [ClassicSimilarity], result of:
          0.0348676 = score(doc=2404,freq=2.0), product of:
            0.15020029 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04289195 = 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)
      0.6666667 = coord(2/3)
  0.25 = coord(1/4)
    Date
    25.12.1998 19:22:31
    Footnote
    Part of an issue devoted to electronic resources and their use in libraries, from the viewpoint of reference services, with an emphasis on the Internet and Geographic Information Systems

Authors

Years

Languages

  • e 106
  • d 1
  • More… Less…

Types

  • a 105
  • m 2
  • el 1
  • More… Less…

Themes

Subjects

Classifications