Search (285 results, page 1 of 15)

0.08701039 = product of:
  0.116013855 = sum of:
    0.010919834 = weight(_text_:a in 3269) [ClassicSimilarity], result of:
      0.010919834 = score(doc=3269,freq=12.0), product of:
        0.05832264 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.05058132 = queryNorm
        0.18723148 = fieldWeight in 3269, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.046875 = fieldNorm(doc=3269)
    0.09614516 = weight(_text_:70 in 3269) [ClassicSimilarity], result of:
      0.09614516 = score(doc=3269,freq=2.0), product of:
        0.27085114 = queryWeight, product of:
          5.354766 = idf(docFreq=567, maxDocs=44218)
          0.05058132 = queryNorm
        0.35497418 = fieldWeight in 3269, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.354766 = idf(docFreq=567, maxDocs=44218)
          0.046875 = fieldNorm(doc=3269)
    0.008948863 = product of:
      0.017897725 = sum of:
        0.017897725 = weight(_text_:information in 3269) [ClassicSimilarity], result of:
          0.017897725 = score(doc=3269,freq=6.0), product of:
            0.088794395 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.05058132 = queryNorm
            0.20156369 = fieldWeight in 3269, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.046875 = fieldNorm(doc=3269)
      0.5 = coord(1/2)
  0.75 = coord(3/4)

Abstract

Search engines are very popular tools for collecting information from distributed resources. They provide not only search facilities, but they also offer directories for users to browse content divided into groups. In this paper, we've adopted an individual differences approach to explore user's attitudes towards various interface features provided by existing Web directories. Among a variety of individual differences, cognitive style is a particularly important characteristic that influences the effectiveness of information seeking. Empirical results indicate that users' cognitive styles influence their reactions to the organization of subject categories, presentation of the results, and screen layout. We developed a set of design guidelines an the basis of these results, and propose a flexible interface that adopts these guidelines to accommodate the preferences of different cognitive style groups.

Source

Journal of the American Society for Information Science and Technology. 56(2005) no.1, S.70-83

Type

a

0.082670845 = product of:
  0.11022779 = sum of:
    0.008916007 = weight(_text_:a in 2936) [ClassicSimilarity], result of:
      0.008916007 = score(doc=2936,freq=8.0), product of:
        0.05832264 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.05058132 = queryNorm
        0.15287387 = fieldWeight in 2936, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.046875 = fieldNorm(doc=2936)
    0.09614516 = weight(_text_:70 in 2936) [ClassicSimilarity], result of:
      0.09614516 = score(doc=2936,freq=2.0), product of:
        0.27085114 = queryWeight, product of:
          5.354766 = idf(docFreq=567, maxDocs=44218)
          0.05058132 = queryNorm
        0.35497418 = fieldWeight in 2936, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.354766 = idf(docFreq=567, maxDocs=44218)
          0.046875 = fieldNorm(doc=2936)
    0.0051666284 = product of:
      0.010333257 = sum of:
        0.010333257 = weight(_text_:information in 2936) [ClassicSimilarity], result of:
          0.010333257 = score(doc=2936,freq=2.0), product of:
            0.088794395 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.05058132 = queryNorm
            0.116372846 = fieldWeight in 2936, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.046875 = fieldNorm(doc=2936)
      0.5 = coord(1/2)
  0.75 = coord(3/4)

Abstract

Query reformulation is a key user behavior during Web search. Our research goal is to develop predictive models of query reformulation during Web searching. This article reports results from a study in which we automatically classified the query-reformulation patterns for 964,780 Web searching sessions, composed of 1,523,072 queries, to predict the next query reformulation. We employed an n-gram modeling approach to describe the probability of users transitioning from one query-reformulation state to another to predict their next state. We developed first-, second-, third-, and fourth-order models and evaluated each model for accuracy of prediction, coverage of the dataset, and complexity of the possible pattern set. The results show that Reformulation and Assistance account for approximately 45% of all query reformulations; furthermore, the results demonstrate that the first- and second-order models provide the best predictability, between 28 and 40% overall and higher than 70% for some patterns. Implications are that the n-gram approach can be used for improving searching systems and searching assistance.

Source

Journal of the American Society for Information Science and Technology. 60(2009) no.7, S.1358-1371

Type

a

0.07600841 = product of:
  0.10134455 = sum of:
    0.008307 = weight(_text_:a in 5419) [ClassicSimilarity], result of:
      0.008307 = score(doc=5419,freq=10.0), product of:
        0.05832264 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.05058132 = queryNorm
        0.14243183 = fieldWeight in 5419, product of:
          3.1622777 = tf(freq=10.0), with freq of:
            10.0 = termFreq=10.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5419)
    0.08012097 = weight(_text_:70 in 5419) [ClassicSimilarity], result of:
      0.08012097 = score(doc=5419,freq=2.0), product of:
        0.27085114 = queryWeight, product of:
          5.354766 = idf(docFreq=567, maxDocs=44218)
          0.05058132 = queryNorm
        0.29581183 = fieldWeight in 5419, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.354766 = idf(docFreq=567, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5419)
    0.01291657 = product of:
      0.02583314 = sum of:
        0.02583314 = weight(_text_:information in 5419) [ClassicSimilarity], result of:
          0.02583314 = score(doc=5419,freq=18.0), product of:
            0.088794395 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.05058132 = queryNorm
            0.2909321 = fieldWeight in 5419, product of:
              4.2426405 = tf(freq=18.0), with freq of:
                18.0 = termFreq=18.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5419)
      0.5 = coord(1/2)
  0.75 = coord(3/4)

Abstract

Understanding users' search behavior has largely relied on the information available from search engine logs, which provide limited information about the contextual factors affecting users' behavior. Consequently, questions such as how users' intentions, task goals, and substances of the users' tasks affect search behavior, as well as what triggers information needs, remain largely unanswered. We report an experiment in which naturalistic information search behavior was captured by analyzing 24/7 continuous recordings of information on participants' computer screens. Written task diaries describing the participants' tasks were collected and used as real-life task contexts for further categorization. All search tasks were extracted and classified under various task categories according to users' intentions, task goals, and substances of the tasks. We investigated the effect of different task categories on three behavioral factors: search efforts, content-triggers, and application context. Our results suggest four findings: (i) Search activity is integrally associated with the users' creative processes. The content users have seen prior to searching more often triggers search, and is used as a query, within creative tasks. (ii) Searching within intellectual and creative tasks is more time-intensive, while search activity occurring as a part of daily routine tasks is associated with more frequent searching within a search task. (iii) Searching is more often induced from utility applications in tasks demanding a degree of intellectual effort. (iv) Users' leisure information-seeking activity is occurring inherently within social media services or comes from social communication platforms. The implications of our findings for information access and management systems are discussed.

Source

Journal of the Association for Information Science and Technology. 70(2019) no.11, S.1248-1261

Type

a

0.07519202 = product of:
  0.100256026 = sum of:
    0.010507616 = weight(_text_:a in 283) [ClassicSimilarity], result of:
      0.010507616 = score(doc=283,freq=16.0), product of:
        0.05832264 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.05058132 = queryNorm
        0.18016359 = fieldWeight in 283, product of:
          4.0 = tf(freq=16.0), with freq of:
            16.0 = termFreq=16.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0390625 = fieldNorm(doc=283)
    0.08012097 = weight(_text_:70 in 283) [ClassicSimilarity], result of:
      0.08012097 = score(doc=283,freq=2.0), product of:
        0.27085114 = queryWeight, product of:
          5.354766 = idf(docFreq=567, maxDocs=44218)
          0.05058132 = queryNorm
        0.29581183 = fieldWeight in 283, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.354766 = idf(docFreq=567, maxDocs=44218)
          0.0390625 = fieldNorm(doc=283)
    0.009627443 = product of:
      0.019254886 = sum of:
        0.019254886 = weight(_text_:information in 283) [ClassicSimilarity], result of:
          0.019254886 = score(doc=283,freq=10.0), product of:
            0.088794395 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.05058132 = queryNorm
            0.21684799 = fieldWeight in 283, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0390625 = fieldNorm(doc=283)
      0.5 = coord(1/2)
  0.75 = coord(3/4)

Abstract

As a result of the Internet, electronic networks occupy a more visible place in everyday life. Until the early nineties, the use of electronic networks was limited to a rather small number of people working in enterprises and universities. Since then, the networks have become more accessible for other citizens. Currently at least 60-70 million people all over the world are estimated to use the Internet (Gaines et al., 1997: 990). In 2000, the number of WWW users alone is expected to reach 160 million (Aldridge & Darwood 1997: 283). The rapid growth of network use has given rise to a lot of research needs. For example, what are the main purposes of network use and to what extent may the Internet replace other channels in information seeking? Thus far, the utilization of networks has been mainly surveyed in the USA but, in recent years issues of use have also attracted increasing attention in Western Europe. This study is a continuation of a research project focusing on the ways in which citizens seek information in the context of everyday life (see Savolainen 1995). An attempt is made to analyze how citizens utilize the electronic networks, primarily for non-work purposes. This paper communicates part of an empirical study; a detailed report is available in Finnish (Savolainen 1998b).

Source

Exploring the contexts of information behaviour: Proceedings of the 2nd International Conference on Research in Information Needs, Seeking and Use in Different Contexts, 13-15 August 1998, Sheffield, UK. Ed. by D.K. Wilson u. D.K. Allen

Type

a

0.070221506 = product of:
  0.14044301 = sum of:
    0.010402009 = weight(_text_:a in 3924) [ClassicSimilarity], result of:
      0.010402009 = score(doc=3924,freq=2.0), product of:
        0.05832264 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.05058132 = queryNorm
        0.17835285 = fieldWeight in 3924, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.109375 = fieldNorm(doc=3924)
    0.130041 = sum of:
      0.034098007 = weight(_text_:information in 3924) [ClassicSimilarity], result of:
        0.034098007 = score(doc=3924,freq=4.0), product of:
          0.088794395 = queryWeight, product of:
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.05058132 = queryNorm
          0.3840108 = fieldWeight in 3924, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.109375 = fieldNorm(doc=3924)
      0.09594299 = weight(_text_:22 in 3924) [ClassicSimilarity], result of:
        0.09594299 = score(doc=3924,freq=2.0), product of:
          0.17712717 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05058132 = queryNorm
          0.5416616 = fieldWeight in 3924, 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=3924)
  0.5 = coord(2/4)

Source

Library and information science research. 22(2000) no.4, S.371-382

Type

a

0.06955013 = product of:
  0.0927335 = sum of:
    0.008307 = weight(_text_:a in 5410) [ClassicSimilarity], result of:
      0.008307 = score(doc=5410,freq=10.0), product of:
        0.05832264 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.05058132 = queryNorm
        0.14243183 = fieldWeight in 5410, product of:
          3.1622777 = tf(freq=10.0), with freq of:
            10.0 = termFreq=10.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5410)
    0.08012097 = weight(_text_:70 in 5410) [ClassicSimilarity], result of:
      0.08012097 = score(doc=5410,freq=2.0), product of:
        0.27085114 = queryWeight, product of:
          5.354766 = idf(docFreq=567, maxDocs=44218)
          0.05058132 = queryNorm
        0.29581183 = fieldWeight in 5410, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.354766 = idf(docFreq=567, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5410)
    0.0043055234 = product of:
      0.008611047 = sum of:
        0.008611047 = weight(_text_:information in 5410) [ClassicSimilarity], result of:
          0.008611047 = score(doc=5410,freq=2.0), product of:
            0.088794395 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.05058132 = queryNorm
            0.09697737 = fieldWeight in 5410, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5410)
      0.5 = coord(1/2)
  0.75 = coord(3/4)

Abstract

It is a frequently seen scenario that when people are not familiar with their search topics, they use a simple keyword search, which leads to a large amount of search results in multiple pages. This makes it difficult for users to pick relevant documents, especially given that they are not knowledgeable of the topics. To explore how systems can better help users find relevant documents from search results, the current research analyzed document selection behaviors of users with different levels of domain knowledge (DK). Data were collected in a laboratory study with 35 participants each searching on four tasks in the genomics domain. The results show that users with high and low DK levels selected different sets of documents to view; those high in DK read more documents and gave higher relevance ratings for the viewed documents than those low in DK did. Users with low DK tended to select documents ranking toward the top of the search result lists, and those with high in DK tended to also select documents ranking down the search result lists. The findings help design search systems that can personalize search results to users with different levels of DK.

Source

Journal of the Association for Information Science and Technology. 70(2019) no.11, S.1236-1247

Type

a

0.06744368 = product of:
  0.0899249 = sum of:
    0.003715003 = weight(_text_:a in 5047) [ClassicSimilarity], result of:
      0.003715003 = score(doc=5047,freq=2.0), product of:
        0.05832264 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.05058132 = queryNorm
        0.06369744 = fieldWeight in 5047, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5047)
    0.08012097 = weight(_text_:70 in 5047) [ClassicSimilarity], result of:
      0.08012097 = score(doc=5047,freq=2.0), product of:
        0.27085114 = queryWeight, product of:
          5.354766 = idf(docFreq=567, maxDocs=44218)
          0.05058132 = queryNorm
        0.29581183 = fieldWeight in 5047, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.354766 = idf(docFreq=567, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5047)
    0.0060889297 = product of:
      0.012177859 = sum of:
        0.012177859 = weight(_text_:information in 5047) [ClassicSimilarity], result of:
          0.012177859 = score(doc=5047,freq=4.0), product of:
            0.088794395 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.05058132 = queryNorm
            0.13714671 = fieldWeight in 5047, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5047)
      0.5 = coord(1/2)
  0.75 = coord(3/4)

Abstract

We investigated the searching behaviors of twenty-four children in grades 6, 7, and 8 (ages 11-13) in finding information on three types of search tasks in Google. Children conducted 72 search sessions and issued 150 queries. Children's phrase- and question-like queries combined were much more prevalent than keyword queries (70% vs. 30%, respectively). Fifty two percent of the queries were reformulations (33 sessions). We classified children's query reformulation types into five classes based on the taxonomy by Liu et al. (2010). We found that most query reformulations were by Substitution and Specialization, and that children hardly repeated queries. We categorized children's queries by task facets and examined the way they expressed these facets in their query formulations and reformulations. Oldest children tended to target the general topic of search tasks in their queries most frequently, whereas younger children expressed one of the two facets more often. We assessed children's achieved task outcomes using the search task outcomes measure we developed. Children were mostly more successful on the fact-finding and fully self-generated task and partially successful on the research-oriented task. Query type, reformulation type, achieved task outcomes, and expressing task facets varied by task type and grade level. There was no significant effect of query length in words or of the number of queries issued on search task outcomes. The study findings have implications for human intervention, digital literacy, search task literacy, as well as for system intervention to support children's query formulation and reformulation during interaction with Google.

Source

Information processing and management. 54(2018) no.6, S.1022-1041

Type

a

0.05169702 = product of:
  0.10339404 = sum of:
    0.010507616 = weight(_text_:a in 5835) [ClassicSimilarity], result of:
      0.010507616 = score(doc=5835,freq=4.0), product of:
        0.05832264 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.05058132 = queryNorm
        0.18016359 = fieldWeight in 5835, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.078125 = fieldNorm(doc=5835)
    0.092886426 = sum of:
      0.024355719 = weight(_text_:information in 5835) [ClassicSimilarity], result of:
        0.024355719 = score(doc=5835,freq=4.0), product of:
          0.088794395 = queryWeight, product of:
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.05058132 = queryNorm
          0.27429342 = fieldWeight in 5835, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.078125 = fieldNorm(doc=5835)
      0.06853071 = weight(_text_:22 in 5835) [ClassicSimilarity], result of:
        0.06853071 = score(doc=5835,freq=2.0), product of:
          0.17712717 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05058132 = queryNorm
          0.38690117 = fieldWeight in 5835, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.078125 = fieldNorm(doc=5835)
  0.5 = coord(2/4)

Date

5. 8.2006 13:22:44

Source

Theory and application of information research. Proc. of the 2nd Int. Research Forum on Information Science, 3.-6.8.1977, Copenhagen. Ed.: O. Harbo u, L. Kajberg

Type

a

0.044348966 = product of:
  0.08869793 = sum of:
    0.008916007 = weight(_text_:a in 281) [ClassicSimilarity], result of:
      0.008916007 = score(doc=281,freq=8.0), product of:
        0.05832264 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.05058132 = queryNorm
        0.15287387 = fieldWeight in 281, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.046875 = fieldNorm(doc=281)
    0.07978193 = sum of:
      0.038663503 = weight(_text_:information in 281) [ClassicSimilarity], result of:
        0.038663503 = score(doc=281,freq=28.0), product of:
          0.088794395 = queryWeight, product of:
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.05058132 = queryNorm
          0.4354273 = fieldWeight in 281, product of:
            5.2915025 = tf(freq=28.0), with freq of:
              28.0 = termFreq=28.0
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.046875 = fieldNorm(doc=281)
      0.041118424 = weight(_text_:22 in 281) [ClassicSimilarity], result of:
        0.041118424 = score(doc=281,freq=2.0), product of:
          0.17712717 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05058132 = queryNorm
          0.23214069 = fieldWeight in 281, 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=281)
  0.5 = coord(2/4)

Abstract

This study grew out of a need for better research based understanding of information seeking and use in a specific context. Several researchers in library and information studies (LIS) pointed out the predominance of research on information needs and information seeking and expressed a need for the study of information use (i.a. Kuhlthau 1993; Vakkari 1997; Wilson 1981). The role of context for information seeking behaviour has been stressed (i.a. Dervin 1997; Wilson 1981, 1994). The complex process of information seeking and use in learning contexts needs further exploration, according to i.a. Kuhlthau (1993). My research project investigated how students used information and what they learnt from the information they retrieved and used for an assignment. The aim of the project was to study information seeking through an explorative investigation of the interaction between information seeking and use and learning outcomes.

Date

22. 3.2002 9:53:10

Source

Exploring the contexts of information behaviour: Proceedings of the 2nd International Conference on Research in Information Needs, Seeking and Use in Different Contexts, Sheffield, UK, 1998. Ed. by D.K. Wilson u. D.K. Allen

Type

a

0.04344114 = product of:
  0.08688228 = sum of:
    0.0099684 = weight(_text_:a in 3450) [ClassicSimilarity], result of:
      0.0099684 = score(doc=3450,freq=10.0), product of:
        0.05832264 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.05058132 = queryNorm
        0.1709182 = fieldWeight in 3450, product of:
          3.1622777 = tf(freq=10.0), with freq of:
            10.0 = termFreq=10.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.046875 = fieldNorm(doc=3450)
    0.07691388 = sum of:
      0.03579545 = weight(_text_:information in 3450) [ClassicSimilarity], result of:
        0.03579545 = score(doc=3450,freq=24.0), product of:
          0.088794395 = queryWeight, product of:
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.05058132 = queryNorm
          0.40312737 = fieldWeight in 3450, product of:
            4.8989797 = tf(freq=24.0), with freq of:
              24.0 = termFreq=24.0
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.046875 = fieldNorm(doc=3450)
      0.041118424 = weight(_text_:22 in 3450) [ClassicSimilarity], result of:
        0.041118424 = score(doc=3450,freq=2.0), product of:
          0.17712717 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05058132 = queryNorm
          0.23214069 = fieldWeight in 3450, 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=3450)
  0.5 = coord(2/4)

Abstract

Most information systems share a common assumption: information seeking is discrete. Such an assumption neither reflects real-life information seeking processes nor conforms to the perspective of phenomenology, "life is a journey constituted by continuous acquisition of knowledge." Thus, this study develops and validates a theoretical model that explains successive search experience for essentially the same information problem. The proposed model is called Multiple Information Seeking Episodes (MISE), which consists of four dimensions: problematic situation, information problem, information seeking process, episodes. Eight modes of multiple information seeking episodes are identified and specified with properties of the four dimensions of MISE. The results partially validate MISE by finding that the original MISE model is highly accurate, but less sufficient in characterizing successive searches; all factors in the MISE model are empirically confirmed, but new factors are identified as weIl. The revised MISE model is shifted from the user-centered to the interaction-centered perspective, taking into account factors of searcher, system, search activity, search context, information attainment, and information use activities.

Date

10. 4.2005 14:52:22

Source

Journal of the American Society for Information Science and Technology. 56(2005) no.4, S.393-415

Type

a

0.039630644 = product of:
  0.07926129 = sum of:
    0.008916007 = weight(_text_:a in 3612) [ClassicSimilarity], result of:
      0.008916007 = score(doc=3612,freq=8.0), product of:
        0.05832264 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.05058132 = queryNorm
        0.15287387 = fieldWeight in 3612, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.046875 = fieldNorm(doc=3612)
    0.07034528 = sum of:
      0.029226862 = weight(_text_:information in 3612) [ClassicSimilarity], result of:
        0.029226862 = score(doc=3612,freq=16.0), product of:
          0.088794395 = queryWeight, product of:
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.05058132 = queryNorm
          0.3291521 = fieldWeight in 3612, product of:
            4.0 = tf(freq=16.0), with freq of:
              16.0 = termFreq=16.0
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.046875 = fieldNorm(doc=3612)
      0.041118424 = weight(_text_:22 in 3612) [ClassicSimilarity], result of:
        0.041118424 = score(doc=3612,freq=2.0), product of:
          0.17712717 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05058132 = 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)
  0.5 = coord(2/4)

Abstract

In this paper results of a field study into the need for research information of different user groups are presented: scientists, policy makers and policy researchers, industry and media. Main questions of semi-structured interviews were: what kind of research information users need, what kind of research information resources are used and which information resources are missing at the moment. User groups are missing for a diversity of reasons the overview of research, experts and institutes in the different scientific fields. Especially for the accessibility and transparency of the scientific world these overviews are reported to be needed. Neither Google nor any of the research institutes or policy research organisations are able to present surveys for different science fields at the moment. Giving users the possibility to search, browse and navigate through accessible and more specialised layers of research information might give answers to different user groups simultaneously.

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

Type

a

0.038686827 = product of:
  0.07737365 = sum of:
    0.008916007 = weight(_text_:a in 331) [ClassicSimilarity], result of:
      0.008916007 = score(doc=331,freq=8.0), product of:
        0.05832264 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.05058132 = queryNorm
        0.15287387 = fieldWeight in 331, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.046875 = fieldNorm(doc=331)
    0.06845765 = sum of:
      0.027339226 = weight(_text_:information in 331) [ClassicSimilarity], result of:
        0.027339226 = score(doc=331,freq=14.0), product of:
          0.088794395 = queryWeight, product of:
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.05058132 = queryNorm
          0.3078936 = fieldWeight in 331, product of:
            3.7416575 = tf(freq=14.0), with freq of:
              14.0 = termFreq=14.0
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.046875 = fieldNorm(doc=331)
      0.041118424 = weight(_text_:22 in 331) [ClassicSimilarity], result of:
        0.041118424 = score(doc=331,freq=2.0), product of:
          0.17712717 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05058132 = queryNorm
          0.23214069 = fieldWeight in 331, 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=331)
  0.5 = coord(2/4)

Abstract

Human information-seeking behavior is a topic of increasing interest in many disciplines. However, the dynamics of this behavior remain elusive. The extant research has taken cognitive and behavioral perspectives to study information-seeking behavior, and observed its dynamics in multiple sessions. However, the underlying mechanisms that govern the dynamics of information-seeking behavior are not well understood. With a focus on interactive information retrieval behavior, this study proposes an integrated framework based on activity theory. This framework is not only comprehensive and integrated, but also offers an explanation of the mechanisms governing the interaction between users' cognitive states and their manifested behavior when using an information retrieval system. A set of four propositions are advanced to describe the mechanisms. The implications are discussed.

Date

27. 5.2007 13:55:22

Source

Journal of the American Society for Information Science and Technology. 58(2007) no.7, S.958-970

Type

a

0.038199015 = product of:
  0.07639803 = sum of:
    0.0099684 = weight(_text_:a in 813) [ClassicSimilarity], result of:
      0.0099684 = score(doc=813,freq=10.0), product of:
        0.05832264 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.05058132 = queryNorm
        0.1709182 = fieldWeight in 813, product of:
          3.1622777 = tf(freq=10.0), with freq of:
            10.0 = termFreq=10.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.046875 = fieldNorm(doc=813)
    0.06642963 = sum of:
      0.025311206 = weight(_text_:information in 813) [ClassicSimilarity], result of:
        0.025311206 = score(doc=813,freq=12.0), product of:
          0.088794395 = queryWeight, product of:
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.05058132 = queryNorm
          0.2850541 = fieldWeight in 813, product of:
            3.4641016 = tf(freq=12.0), with freq of:
              12.0 = termFreq=12.0
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.046875 = fieldNorm(doc=813)
      0.041118424 = weight(_text_:22 in 813) [ClassicSimilarity], result of:
        0.041118424 = score(doc=813,freq=2.0), product of:
          0.17712717 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05058132 = queryNorm
          0.23214069 = fieldWeight in 813, 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=813)
  0.5 = coord(2/4)

Abstract

Purpose - This is part II of on-going research, the purpose being to establish a creative information-seeking model. Design/methodology/approach - Two studies were conducted to examine the subjects' creative information seeking behaviours and the extent to which they exhibited the proposed stages in creative information seeking when accomplishing a directed and an open-ended information-seeking task respectively. Findings - Findings seemed to indicate that all the subjects underwent the proposed stages although they seemed to embrace characteristics of these stages in varying degrees. Findings also showed that if subjects performed the proposed stages more iteratively or non-sequentially, then a greater amount of creativity was needed to accomplish the information-seeking task. Originality/value - The paper offers a discussion on the relationships between creativity, complexity of tasks, and levels of expertise in domain knowledge.

Date

23.12.2007 12:22:16

Type

a

0.03738111 = product of:
  0.07476222 = sum of:
    0.006304569 = weight(_text_:a in 3589) [ClassicSimilarity], result of:
      0.006304569 = score(doc=3589,freq=4.0), product of:
        0.05832264 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.05058132 = queryNorm
        0.10809815 = fieldWeight in 3589, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.046875 = fieldNorm(doc=3589)
    0.06845765 = sum of:
      0.027339226 = weight(_text_:information in 3589) [ClassicSimilarity], result of:
        0.027339226 = score(doc=3589,freq=14.0), product of:
          0.088794395 = queryWeight, product of:
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.05058132 = queryNorm
          0.3078936 = fieldWeight in 3589, product of:
            3.7416575 = tf(freq=14.0), with freq of:
              14.0 = termFreq=14.0
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.046875 = fieldNorm(doc=3589)
      0.041118424 = weight(_text_:22 in 3589) [ClassicSimilarity], result of:
        0.041118424 = score(doc=3589,freq=2.0), product of:
          0.17712717 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05058132 = queryNorm
          0.23214069 = fieldWeight in 3589, 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=3589)
  0.5 = coord(2/4)

Abstract

Information searching in practice seldom is an end in itself. In work, work task (WT) performance forms the context, which information searching should serve. Therefore, information retrieval (IR) systems development/evaluation should take the WT context into account. The present paper analyzes how WT features: task complexity and task types, affect information searching in authentic work: the types of information needs, search processes, and search media. We collected data on 22 information professionals in authentic work situations in three organization types: city administration, universities, and companies. The data comprise 286 WTs and 420 search tasks (STs). The data include transaction logs, video recordings, daily questionnaires, interviews. and observation. The data were analyzed quantitatively. Even if the participants used a range of search media, most STs were simple throughout the data, and up to 42% of WTs did not include searching. WT's effects on STs are not straightforward: different WT types react differently to WT complexity. Due to the simplicity of authentic searching, the WT/ST types in interactive IR experiments should be reconsidered.

Source

Journal of the Association for Information Science and Technology. 68(2017) no.5, S.1111-1123

Type

a

0.03666629 = product of:
  0.07333258 = sum of:
    0.010507616 = weight(_text_:a in 2603) [ClassicSimilarity], result of:
      0.010507616 = score(doc=2603,freq=16.0), product of:
        0.05832264 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.05058132 = queryNorm
        0.18016359 = fieldWeight in 2603, product of:
          4.0 = tf(freq=16.0), with freq of:
            16.0 = termFreq=16.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2603)
    0.062824965 = sum of:
      0.02855961 = weight(_text_:information in 2603) [ClassicSimilarity], result of:
        0.02855961 = score(doc=2603,freq=22.0), product of:
          0.088794395 = queryWeight, product of:
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.05058132 = queryNorm
          0.32163754 = fieldWeight in 2603, product of:
            4.690416 = tf(freq=22.0), with freq of:
              22.0 = termFreq=22.0
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.0390625 = fieldNorm(doc=2603)
      0.034265354 = weight(_text_:22 in 2603) [ClassicSimilarity], result of:
        0.034265354 = score(doc=2603,freq=2.0), product of:
          0.17712717 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05058132 = 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)
  0.5 = coord(2/4)

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

Type

a

0.035962414 = product of:
  0.07192483 = sum of:
    0.009099863 = weight(_text_:a in 3340) [ClassicSimilarity], result of:
      0.009099863 = score(doc=3340,freq=12.0), product of:
        0.05832264 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.05058132 = queryNorm
        0.15602624 = fieldWeight in 3340, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0390625 = fieldNorm(doc=3340)
    0.062824965 = sum of:
      0.02855961 = weight(_text_:information in 3340) [ClassicSimilarity], result of:
        0.02855961 = score(doc=3340,freq=22.0), product of:
          0.088794395 = queryWeight, product of:
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.05058132 = queryNorm
          0.32163754 = fieldWeight in 3340, product of:
            4.690416 = tf(freq=22.0), with freq of:
              22.0 = termFreq=22.0
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.0390625 = fieldNorm(doc=3340)
      0.034265354 = weight(_text_:22 in 3340) [ClassicSimilarity], result of:
        0.034265354 = score(doc=3340,freq=2.0), product of:
          0.17712717 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05058132 = queryNorm
          0.19345059 = fieldWeight in 3340, 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=3340)
  0.5 = coord(2/4)

Abstract

Keeping up to date with research developments is a central activity of academic researchers, but researchers face difficulties in managing the rapid growth of available scientific information. This study examined how researchers stay up to date, using the information journey model as a framework for analysis and investigating which dimensions influence information behaviors. We designed a 2-round study involving semistructured interviews and prototype testing with 61 researchers with 3 levels of seniority (PhD student to professor). Data were analyzed following a semistructured qualitative approach. Five key dimensions that influence information behaviors were identified: level of seniority, information sources, state of the project, level of familiarity, and how well defined the relevant community is. These dimensions are interrelated and their values determine the flow of the information journey. Across all levels of professional expertise, researchers used similar hard (formal) sources to access content, while soft (interpersonal) sources were used to filter information. An important "pain point" that future information tools should address is helping researchers filter information at the point of need.

Source

Journal of the Association for Information Science and Technology. 68(2017) no.1, S.22-35

Type

a

0.03576245 = product of:
  0.0715249 = sum of:
    0.007430006 = weight(_text_:a in 297) [ClassicSimilarity], result of:
      0.007430006 = score(doc=297,freq=8.0), product of:
        0.05832264 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.05058132 = queryNorm
        0.12739488 = fieldWeight in 297, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0390625 = fieldNorm(doc=297)
    0.0640949 = sum of:
      0.029829545 = weight(_text_:information in 297) [ClassicSimilarity], result of:
        0.029829545 = score(doc=297,freq=24.0), product of:
          0.088794395 = queryWeight, product of:
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.05058132 = queryNorm
          0.3359395 = fieldWeight in 297, product of:
            4.8989797 = tf(freq=24.0), with freq of:
              24.0 = termFreq=24.0
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.0390625 = fieldNorm(doc=297)
      0.034265354 = weight(_text_:22 in 297) [ClassicSimilarity], result of:
        0.034265354 = score(doc=297,freq=2.0), product of:
          0.17712717 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05058132 = queryNorm
          0.19345059 = fieldWeight in 297, 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=297)
  0.5 = coord(2/4)

Abstract

In information needs, seeking and use (INSU) research, individuals have most commonly been perceived as users (e.g., Kuhlthau, 1991; Dervin & Nilan, 1986; Dervin, 1989; Belkin, 1980). The concept user originates from the user of libraries and other information services and information systems. Over the years the scope of the concept has become wider and it is nowadays often understood in the sense of seekers of information (e.g., Wilson, 1981; Marchionini, 1995) and users of information (e.g., Streatfield, 1983). Nevertheless, the concept has remained ambiguous by being on the one hand universal and on the other hand extremely specific. The purpose of this paper is to map and evaluate views on people whose information behaviour has been in one way or another the core of our research area. The goal is to shed some light on various relationships between the different aspects of doers in INSU studies. The paper is inspired by Dervin's (1997) analysis of context where she identified among other themes the nature of subject by contrasting a `transcendental individual' with a `decentered subject', and Talja's (1997) presentation about constituting `information' and `user' from the discourse analytic viewpoint as opposed to the cognitive viewpoint. Instead of the metatheoretical approach applied by Dervin and Talja, a more concrete approach is valid in the present analysis where no direct arguments for or against the underlying metatheories are itemised. The focus is on doers in INSU studies leaving other, even closely-related concepts (i.e., information, information seeking, knowledge etc.), outside the scope of the paper.

Date

22. 3.2002 9:55:52

Source

Exploring the contexts of information behaviour: Proceedings of the 2nd International Conference on Research in Information Needs, Seeking and Use in Different Contexts, Sheffield, UK, 1998. Ed. by D.K. Wilson u. D.K. Allen

Type

a

0.034202747 = product of:
  0.068405494 = sum of:
    0.008307 = weight(_text_:a in 5842) [ClassicSimilarity], result of:
      0.008307 = score(doc=5842,freq=10.0), product of:
        0.05832264 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.05058132 = queryNorm
        0.14243183 = fieldWeight in 5842, product of:
          3.1622777 = tf(freq=10.0), with freq of:
            10.0 = termFreq=10.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5842)
    0.06009849 = sum of:
      0.02583314 = weight(_text_:information in 5842) [ClassicSimilarity], result of:
        0.02583314 = score(doc=5842,freq=18.0), product of:
          0.088794395 = queryWeight, product of:
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.05058132 = queryNorm
          0.2909321 = fieldWeight in 5842, product of:
            4.2426405 = tf(freq=18.0), with freq of:
              18.0 = termFreq=18.0
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.0390625 = fieldNorm(doc=5842)
      0.034265354 = weight(_text_:22 in 5842) [ClassicSimilarity], result of:
        0.034265354 = score(doc=5842,freq=2.0), product of:
          0.17712717 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05058132 = queryNorm
          0.19345059 = fieldWeight in 5842, 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=5842)
  0.5 = coord(2/4)

Abstract

Purpose A new approach to investigate serendipitous knowledge discovery (SKD) of health information is developed and tested to evaluate the information flow-serendipitous knowledge discovery (IF-SKD) model. The purpose of this paper is to determine the degree to which IF-SKD reflects physicians' information behaviour in a clinical setting and explore how the information system, Spark, designed to support physicians' SKD, meets its goals. Design/methodology/approach The proposed pre-experimental study design employs an adapted version of the McCay-Peet's (2013) and McCay-Peet et al.'s (2015) serendipitous digital environment (SDE) questionnaire research tool to address the complexity associated with defining the way in which SKD is understood and applied in system design. To test the IF-SKD model, the new data analysis approach combining confirmatory factor analysis, data imputation and Monte Carlo simulations was developed. Findings The piloting of the proposed novel analysis approach demonstrated that small sample information behaviour survey data can be meaningfully examined using a confirmatory factor analysis technique. Research limitations/implications This method allows to improve the reliability in measuring SKD and the generalisability of findings. Originality/value This paper makes an original contribution to developing and refining methods and tools of research into information-system-supported serendipitous discovery of information by health providers.

Date

20. 1.2015 18:30:22

Footnote

Beitrag in einem Special Issue: Innovative Methods in Health Information Behaviour Research.

Source

Aslib journal of information management. 71(2019) no.6, S.755-772

Type

a

0.03396608 = product of:
  0.06793216 = sum of:
    0.008916007 = weight(_text_:a in 5047) [ClassicSimilarity], result of:
      0.008916007 = score(doc=5047,freq=8.0), product of:
        0.05832264 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.05058132 = queryNorm
        0.15287387 = fieldWeight in 5047, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.046875 = fieldNorm(doc=5047)
    0.05901615 = sum of:
      0.017897725 = weight(_text_:information in 5047) [ClassicSimilarity], result of:
        0.017897725 = score(doc=5047,freq=6.0), product of:
          0.088794395 = queryWeight, product of:
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.05058132 = queryNorm
          0.20156369 = fieldWeight in 5047, product of:
            2.4494898 = tf(freq=6.0), with freq of:
              6.0 = termFreq=6.0
            1.7554779 = idf(docFreq=20772, maxDocs=44218)
            0.046875 = fieldNorm(doc=5047)
      0.041118424 = weight(_text_:22 in 5047) [ClassicSimilarity], result of:
        0.041118424 = score(doc=5047,freq=2.0), product of:
          0.17712717 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05058132 = queryNorm
          0.23214069 = fieldWeight in 5047, 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=5047)
  0.5 = coord(2/4)

Abstract

The authors report on an experimental study on the differences between spoken and written queries. A set of written and spontaneous spoken queries are generated by users from written topics. These two sets of queries are compared in qualitative terms and in terms of their retrieval effectiveness. Written and spoken queries are compared in terms of length, duration, and part of speech. In addition, assuming perfect transcription of the spoken queries, written and spoken queries are compared in terms of their aptitude to describe relevant documents. The retrieval effectiveness of spoken and written queries is compared using three different information retrieval models. The results show that using speech to formulate one's information need provides a way to express it more naturally and encourages the formulation of longer queries. Despite that, longer spoken queries do not seem to significantly improve retrieval effectiveness compared with written queries.

Date

5. 6.2006 11:22:23

Source

Journal of the American Society for Information Science and Technology. 57(2006) no.7, S.881-890

Type

a

0.033356287 = product of:
  0.06671257 = sum of:
    0.0118880095 = weight(_text_:a in 1448) [ClassicSimilarity], result of:
      0.0118880095 = score(doc=1448,freq=2.0), product of:
        0.05832264 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.05058132 = queryNorm
        0.20383182 = fieldWeight in 1448, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.125 = fieldNorm(doc=1448)
    0.054824565 = product of:
      0.10964913 = sum of:
        0.10964913 = weight(_text_:22 in 1448) [ClassicSimilarity], result of:
          0.10964913 = score(doc=1448,freq=2.0), product of:
            0.17712717 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05058132 = queryNorm
            0.61904186 = fieldWeight in 1448, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.125 = fieldNorm(doc=1448)
      0.5 = coord(1/2)
  0.5 = coord(2/4)

Date

22. 5.2005 19:53:09

Type

a