Search (62 results, page 1 of 4)

  • × author_ss:"Stock, W.G."
  1. Linde, F.; Stock, W.G.: Information markets : a strategic guideline for the i-commerce (2011) 0.05 
    0.04795259 = product of:
  0.07992098 = sum of:
    0.015985882 = weight(_text_:on in 3283) [ClassicSimilarity], result of:
      0.015985882 = score(doc=3283,freq=2.0), product of:
        0.109641045 = queryWeight, product of:
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.049850095 = queryNorm
        0.14580199 = fieldWeight in 3283, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.046875 = fieldNorm(doc=3283)
    0.043206517 = weight(_text_:information in 3283) [ClassicSimilarity], result of:
      0.043206517 = score(doc=3283,freq=36.0), product of:
        0.08751074 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.049850095 = queryNorm
        0.49372816 = fieldWeight in 3283, product of:
          6.0 = tf(freq=36.0), with freq of:
            36.0 = termFreq=36.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.046875 = fieldNorm(doc=3283)
    0.02072858 = product of:
      0.04145716 = sum of:
        0.04145716 = weight(_text_:technology in 3283) [ClassicSimilarity], result of:
          0.04145716 = score(doc=3283,freq=4.0), product of:
            0.14847288 = queryWeight, product of:
              2.978387 = idf(docFreq=6114, maxDocs=44218)
              0.049850095 = queryNorm
            0.2792238 = fieldWeight in 3283, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.978387 = idf(docFreq=6114, maxDocs=44218)
              0.046875 = fieldNorm(doc=3283)
      0.5 = coord(1/2)
  0.6 = coord(3/5)
    Abstract
    Information Markets is a compendium of the i-commerce, the commerce with digital information, content as well as software. Information Markets is a comprehensive overview of the state of the art of economic and information science endeavors on the markets of digital information. It provides a strategic guideline for information providers how to analyse their market environment and how to develop possible strategic actions. It is a book for information professionals, both for students of LIS (Library and Information Science), CIS (Computer and Information Science) or Information Management curricula and for practitioners as well as managers in these fields.
    LCSH
    Information technology / Management
    Electronic information resources
    Information services
    Series
    Knowledge & Information
    Subject
    Information technology / Management
    Electronic information resources
    Information services
  2. Stock, W.G.: On relevance distributions (2006) 0.04 
    0.036036298 = product of:
  0.060060494 = sum of:
    0.02131451 = weight(_text_:on in 5116) [ClassicSimilarity], result of:
      0.02131451 = score(doc=5116,freq=2.0), product of:
        0.109641045 = queryWeight, product of:
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.049850095 = queryNorm
        0.19440265 = fieldWeight in 5116, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.0625 = fieldNorm(doc=5116)
    0.019202897 = weight(_text_:information in 5116) [ClassicSimilarity], result of:
      0.019202897 = score(doc=5116,freq=4.0), product of:
        0.08751074 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.049850095 = queryNorm
        0.21943474 = fieldWeight in 5116, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0625 = fieldNorm(doc=5116)
    0.01954309 = product of:
      0.03908618 = sum of:
        0.03908618 = weight(_text_:technology in 5116) [ClassicSimilarity], result of:
          0.03908618 = score(doc=5116,freq=2.0), product of:
            0.14847288 = queryWeight, product of:
              2.978387 = idf(docFreq=6114, maxDocs=44218)
              0.049850095 = queryNorm
            0.2632547 = fieldWeight in 5116, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.978387 = idf(docFreq=6114, maxDocs=44218)
              0.0625 = fieldNorm(doc=5116)
      0.5 = coord(1/2)
  0.6 = coord(3/5)
    Abstract
    There are at least three possible ways that documents are distributed by relevance: informetric (power law), inverse logistic, and dichotomous. The nature of the type of distribution has implications for the construction of relevance ranking algorithms for search engines, for automated (blind) relevance feedback, for user behavior when using Web search engines, for combining of outputs of search engines for metasearch, for topic detection and tracking, and for the methodology of evaluation of information retrieval systems.
    Source
    Journal of the American Society for Information Science and Technology. 57(2006) no.8, S.1126-1129
  3. Stock, W.G.: Informational cities : analysis and construction of cities in the knowledge society (2011) 0.04 
    0.03564215 = product of:
  0.089105375 = sum of:
    0.020787746 = weight(_text_:information in 4452) [ClassicSimilarity], result of:
      0.020787746 = score(doc=4452,freq=12.0), product of:
        0.08751074 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.049850095 = queryNorm
        0.23754507 = fieldWeight in 4452, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4452)
    0.06831763 = sum of:
      0.03454763 = weight(_text_:technology in 4452) [ClassicSimilarity], result of:
        0.03454763 = score(doc=4452,freq=4.0), product of:
          0.14847288 = queryWeight, product of:
            2.978387 = idf(docFreq=6114, maxDocs=44218)
            0.049850095 = queryNorm
          0.23268649 = fieldWeight in 4452, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            2.978387 = idf(docFreq=6114, maxDocs=44218)
            0.0390625 = fieldNorm(doc=4452)
      0.03377 = weight(_text_:22 in 4452) [ClassicSimilarity], result of:
        0.03377 = score(doc=4452,freq=2.0), product of:
          0.17456654 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.049850095 = queryNorm
          0.19345059 = fieldWeight in 4452, 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=4452)
  0.4 = coord(2/5)
    Abstract
    Informational cities are prototypical cities of the knowledge society. If they are informational world cities, they are new centers of power. According to Manuel Castells (1989), in those cities space of flows (flows of money, power, and information) tend to override space of places. Information and communication technology infrastructures, cognitive infrastructures (as groundwork of knowledge cities and creative cities), and city-level knowledge management are of great importance. Digital libraries provide access to the global explicit knowledge. The informational city consists of creative clusters and spaces for personal contacts to stimulate sharing of implicit information. In such cities, we can observe job polarization in favor of well-trained employees. The corporate structure of informational cities is made up of financial services, knowledge-intensive high-tech industrial enterprises, companies of the information economy, and further creative and knowledge-intensive service enterprises. Weak location factors are facilities for culture, recreational activities, and consumption. Political willingness to create an informational city and e-governance activities are crucial aspects for the development of such cities. This conceptual article frames indicators which are able to mark the degree of "informativeness" of a city. Finally, based upon findings of network economy, we try to explain why certain cities master the transition to informational cities and others (lagging to relative insignificance) do not. The article connects findings of information science and of urbanistics and urban planning.
    Date
    3. 7.2011 19:22:49
    Source
    Journal of the American Society for Information Science and Technology. 62(2011) no.5, S.963-986
  4. Stock, W.G.: Wissenschaftsinformatik : Fundierung, Gegenstand und Methoden (1980) 0.03 
    0.0324756 = product of:
  0.08118899 = sum of:
    0.027156997 = weight(_text_:information in 2808) [ClassicSimilarity], result of:
      0.027156997 = score(doc=2808,freq=2.0), product of:
        0.08751074 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.049850095 = queryNorm
        0.3103276 = fieldWeight in 2808, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.125 = fieldNorm(doc=2808)
    0.054031998 = product of:
      0.108063996 = sum of:
        0.108063996 = weight(_text_:22 in 2808) [ClassicSimilarity], result of:
          0.108063996 = score(doc=2808,freq=2.0), product of:
            0.17456654 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.049850095 = queryNorm
            0.61904186 = fieldWeight in 2808, 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=2808)
      0.5 = coord(1/2)
  0.4 = coord(2/5)
    Source
    Ratio. 22(1980), S.155-164
    Theme
    Information
  5. Stock, W.G.: Informationsmangel trotz Überfluß : Informationsgesellschaft verlangt neue Berufe und Berufsbilder (1995) 0.03 
    0.0324756 = product of:
  0.08118899 = sum of:
    0.027156997 = weight(_text_:information in 2027) [ClassicSimilarity], result of:
      0.027156997 = score(doc=2027,freq=2.0), product of:
        0.08751074 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.049850095 = queryNorm
        0.3103276 = fieldWeight in 2027, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.125 = fieldNorm(doc=2027)
    0.054031998 = product of:
      0.108063996 = sum of:
        0.108063996 = weight(_text_:22 in 2027) [ClassicSimilarity], result of:
          0.108063996 = score(doc=2027,freq=2.0), product of:
            0.17456654 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.049850095 = queryNorm
            0.61904186 = fieldWeight in 2027, 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=2027)
      0.5 = coord(1/2)
  0.4 = coord(2/5)
    Source
    Insider. 1995, Nr.4, Juli, S.19-22
    Theme
    Information Resources Management
  6. Stock, W.G.: Endnutzersystem für internationale Geschäftsinformationen (1998) 0.03 
    0.028416147 = product of:
  0.07104037 = sum of:
    0.023762373 = weight(_text_:information in 2407) [ClassicSimilarity], result of:
      0.023762373 = score(doc=2407,freq=2.0), product of:
        0.08751074 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.049850095 = queryNorm
        0.27153665 = fieldWeight in 2407, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.109375 = fieldNorm(doc=2407)
    0.047278 = product of:
      0.094556 = sum of:
        0.094556 = weight(_text_:22 in 2407) [ClassicSimilarity], result of:
          0.094556 = score(doc=2407,freq=2.0), product of:
            0.17456654 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.049850095 = queryNorm
            0.5416616 = fieldWeight in 2407, 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=2407)
      0.5 = coord(1/2)
  0.4 = coord(2/5)
    Abstract
    Profound ist das 1995 eingeführte Produkt der ehemaligen Firma M.A.I.D. (Market Analysis Information Database)
    Source
    Password. 1998, H.10, S.22-28
  7. Schmidt, S.; Stock, W.G.: Collective indexing of emotions in images : a study in emotional information retrieval (2009) 0.03 
    0.026707517 = product of:
  0.044512525 = sum of:
    0.013321568 = weight(_text_:on in 2792) [ClassicSimilarity], result of:
      0.013321568 = score(doc=2792,freq=2.0), product of:
        0.109641045 = queryWeight, product of:
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.049850095 = queryNorm
        0.121501654 = fieldWeight in 2792, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2792)
    0.018976528 = weight(_text_:information in 2792) [ClassicSimilarity], result of:
      0.018976528 = score(doc=2792,freq=10.0), product of:
        0.08751074 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.049850095 = queryNorm
        0.21684799 = fieldWeight in 2792, 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=2792)
    0.012214432 = product of:
      0.024428863 = sum of:
        0.024428863 = weight(_text_:technology in 2792) [ClassicSimilarity], result of:
          0.024428863 = score(doc=2792,freq=2.0), product of:
            0.14847288 = queryWeight, product of:
              2.978387 = idf(docFreq=6114, maxDocs=44218)
              0.049850095 = queryNorm
            0.16453418 = fieldWeight in 2792, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.978387 = idf(docFreq=6114, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2792)
      0.5 = coord(1/2)
  0.6 = coord(3/5)
    Abstract
    Some documents provoke emotions in people viewing them. Will it be possible to describe emotions consistently and use this information in retrieval systems? We tested collective (statistically aggregated) emotion indexing using images as examples. Considering psychological results, basic emotions are anger, disgust, fear, happiness, and sadness. This study follows an approach developed by Lee and Neal (2007) for music emotion retrieval and applies scroll bars for tagging basic emotions and their intensities. A sample comprising 763 persons tagged emotions caused by images (retrieved from www.Flickr.com) applying scroll bars and (linguistic) tags. Using SPSS, we performed descriptive statistics and correlation analysis. For more than half of the images, the test persons have clear emotion favorites. There are prototypical images for given emotions. The document-specific consistency of tagging using a scroll bar is, for some images, very high. Most of the (most commonly used) linguistic tags are on the basic level (in the sense of Rosch's basic level theory). The distributions of the linguistic tags in our examples follow an inverse power-law. Hence, it seems possible to apply collective image emotion tagging to image information systems and to present a new search option for basic emotions. This article is one of the first steps in the research area of emotional information retrieval (EmIR).
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.5, S.863-876
  8. Stock, W.G.: Concepts and semantic relations in information science (2010) 0.02 
    0.024141094 = product of:
  0.040235154 = sum of:
    0.013321568 = weight(_text_:on in 4008) [ClassicSimilarity], result of:
      0.013321568 = score(doc=4008,freq=2.0), product of:
        0.109641045 = queryWeight, product of:
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.049850095 = queryNorm
        0.121501654 = fieldWeight in 4008, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4008)
    0.014699157 = weight(_text_:information in 4008) [ClassicSimilarity], result of:
      0.014699157 = score(doc=4008,freq=6.0), product of:
        0.08751074 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.049850095 = queryNorm
        0.16796975 = fieldWeight in 4008, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4008)
    0.012214432 = product of:
      0.024428863 = sum of:
        0.024428863 = weight(_text_:technology in 4008) [ClassicSimilarity], result of:
          0.024428863 = score(doc=4008,freq=2.0), product of:
            0.14847288 = queryWeight, product of:
              2.978387 = idf(docFreq=6114, maxDocs=44218)
              0.049850095 = queryNorm
            0.16453418 = fieldWeight in 4008, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.978387 = idf(docFreq=6114, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4008)
      0.5 = coord(1/2)
  0.6 = coord(3/5)
    Abstract
    Concept-based information retrieval and knowledge representation are in need of a theory of concepts and semantic relations. Guidelines for the construction and maintenance of knowledge organization systems (KOS) (such as ANSI/NISO Z39.19-2005 in the U.S.A. or DIN 2331:1980 in Germany) do not consider results of concept theory and theory of relations to the full extent. They are not able to unify the currently different worlds of traditional controlled vocabularies, of the social web (tagging and folksonomies) and of the semantic web (ontologies). Concept definitions as well as semantic relations are based on epistemological theories (empiricism, rationalism, hermeneutics, pragmatism, and critical theory). A concept is determined via its intension and extension as well as by definition. We will meet the problem of vagueness by introducing prototypes. Some important definitions are concept explanations (after Aristotle) and the definition of family resemblances (in the sense of Wittgenstein). We will model concepts as frames (according to Barsalou). The most important paradigmatic relation in KOS is hierarchy, which must be arranged into different classes: Hyponymy consists of taxonomy and simple hyponymy, meronymy consists of many different part-whole-relations. For practical application purposes, the transitivity of the given relation is very important. Unspecific associative relations are of little help to our focused applications and should be replaced by generalizable and domain-specific relations. We will discuss the reflexivity, symmetry, and transitivity of paradigmatic relations as well as the appearance of specific semantic relations in the different kinds of KOS (folksonomies, nomenclatures, classification systems, thesauri, and ontologies). Finally, we will pick out KOS as a central theme of the Semantic Web.
    Source
    Journal of the American Society for Information Science and Technology. 61(2010) no.10, S.1951-1969
  9. Stock, W.G.; Weber, S.: Facets of informetrics : Preface (2006) 0.02 
    0.022575168 = product of:
  0.056437917 = sum of:
    0.03014327 = weight(_text_:on in 76) [ClassicSimilarity], result of:
      0.03014327 = score(doc=76,freq=16.0), product of:
        0.109641045 = queryWeight, product of:
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.049850095 = queryNorm
        0.27492687 = fieldWeight in 76, product of:
          4.0 = tf(freq=16.0), with freq of:
            16.0 = termFreq=16.0
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.03125 = fieldNorm(doc=76)
    0.026294649 = weight(_text_:information in 76) [ClassicSimilarity], result of:
      0.026294649 = score(doc=76,freq=30.0), product of:
        0.08751074 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.049850095 = queryNorm
        0.3004734 = fieldWeight in 76, product of:
          5.477226 = tf(freq=30.0), with freq of:
            30.0 = termFreq=30.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03125 = fieldNorm(doc=76)
  0.4 = coord(2/5)
    Abstract
    According to Jean M. Tague-Sutcliffe "informetrics" is "the study of the quantitative aspects of information in any form, not just records or bibliographies, and in any social group, not just scientists" (Tague-Sutcliffe, 1992, 1). Leo Egghe also defines "informetrics" in a very broad sense. "(W)e will use the term' informetrics' as the broad term comprising all-metrics studies related to information science, including bibliometrics (bibliographies, libraries,...), scientometrics (science policy, citation analysis, research evaluation,...), webometrics (metrics of the web, the Internet or other social networks such as citation or collaboration networks), ..." (Egghe, 2005b,1311). According to Concepcion S. Wilson "informetrics" is "the quantitative study of collections of moderatesized units of potentially informative text, directed to the scientific understanding of information processes at the social level" (Wilson, 1999, 211). We should add to Wilson's units of text also digital collections of images, videos, spoken documents and music. Dietmar Wolfram divides "informetrics" into two aspects, "system-based characteristics that arise from the documentary content of IR systems and how they are indexed, and usage-based characteristics that arise how users interact with system content and the system interfaces that provide access to the content" (Wolfram, 2003, 6). We would like to follow Tague-Sutcliffe, Egghe, Wilson and Wolfram (and others, for example Björneborn & Ingwersen, 2004) and call this broad research of empirical information science "informetrics". Informetrics includes therefore all quantitative studies in information science. If a scientist performs scientific investigations empirically, e.g. on information users' behavior, on scientific impact of academic journals, on the development of the patent application activity of a company, on links of Web pages, on the temporal distribution of blog postings discussing a given topic, on availability, recall and precision of retrieval systems, on usability of Web sites, and so on, he or she contributes to informetrics. We see three subject areas in information science in which such quantitative research takes place, - information users and information usage, - evaluation of information systems, - information itself, Following Wolfram's article, we divide his system-based characteristics into the "information itself "-category and the "information system"-category. Figure 1 is a simplistic graph of subjects and research areas of informetrics as an empirical information science.
    Source
    Information - Wissenschaft und Praxis. 57(2006) H.8, S.385-389
  10. Stock, M.; Stock, W.G.: Intellectual property information : A comparative analysis of main information providers (2006) 0.02 
    0.02051208 = product of:
  0.0512802 = sum of:
    0.030551622 = weight(_text_:information in 210) [ClassicSimilarity], result of:
      0.030551622 = score(doc=210,freq=18.0), product of:
        0.08751074 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.049850095 = queryNorm
        0.34911853 = fieldWeight in 210, product of:
          4.2426405 = tf(freq=18.0), with freq of:
            18.0 = termFreq=18.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.046875 = fieldNorm(doc=210)
    0.02072858 = product of:
      0.04145716 = sum of:
        0.04145716 = weight(_text_:technology in 210) [ClassicSimilarity], result of:
          0.04145716 = score(doc=210,freq=4.0), product of:
            0.14847288 = queryWeight, product of:
              2.978387 = idf(docFreq=6114, maxDocs=44218)
              0.049850095 = queryNorm
            0.2792238 = fieldWeight in 210, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.978387 = idf(docFreq=6114, maxDocs=44218)
              0.046875 = fieldNorm(doc=210)
      0.5 = coord(1/2)
  0.4 = coord(2/5)
    Abstract
    After modeling expert user needs with regard to intellectual property information, we analyze and compare the main providers in this specific information area (Thomson DIALOG, Esp@cenet by the European Patent Office, Questel-Orbit, and STN International) in terms of system content and system functionality. The key question is whether the main providers are able to satisfy these expert user needs. For patent information, some special retrieval features such as chemical structure search (including Markush search), patent family references and citations search, biosequence search, and basic informetric functionality such as ranking, mapping, and visualization of information flows are realized. Considering the results of information science research, the practice of patent information shows unexhausted improvement opportunities (e.g., the application of bibliographic patent coupling and co-patent-citation for mapping patents, patent assignees, and technology specialties). For trademark search, users need multiple truncated search (realized) as well as phonetic search and image retrieval (not realized yet).
    Source
    Journal of the American Society for Information Science and Technology. 57(2006) no.13, S.1794-1803
  11. Stock, W.G.: ¬Die Wichtigkeit wissenschaftlicher Dokumente relativ zu gegebenen Thematiken (1981) 0.02 
    0.01964225 = product of:
  0.049105626 = sum of:
    0.03230309 = weight(_text_:on in 13) [ClassicSimilarity], result of:
      0.03230309 = score(doc=13,freq=6.0), product of:
        0.109641045 = queryWeight, product of:
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.049850095 = queryNorm
        0.29462588 = fieldWeight in 13, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.0546875 = fieldNorm(doc=13)
    0.016802534 = weight(_text_:information in 13) [ClassicSimilarity], result of:
      0.016802534 = score(doc=13,freq=4.0), product of:
        0.08751074 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.049850095 = queryNorm
        0.1920054 = fieldWeight in 13, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0546875 = fieldNorm(doc=13)
  0.4 = coord(2/5)
    Abstract
    Scientific documents are more or less important in relation to give subjects and this importance can be measured. An empirical investigation into philosophical information was carried out using a weighting algorithm developed by N. Henrichs which results in a distribution by weighting of documents on an average philosophical subject. With the aid of statistical methods a threshold value can be obtained that separates the important and unimportant documents on a subject. The knowledge of theis threshold value is important for various practical and theoretic questions: providing new possibilities for research strategy in information retrieval; evaluation of the 'titleworthiness' of subjects by comparison of document titles and themes for which the document at hand is important; and making available data on thematic trends for scientific results
  12. Schumann, L.; Stock, W.G.: ¬Ein umfassendes ganzheitliches Modell für Evaluation und Akzeptanzanalysen von Informationsdiensten : Das Information Service Evaluation (ISE) Modell (2014) 0.02 
    0.017687127 = product of:
  0.044217817 = sum of:
    0.02057882 = weight(_text_:information in 1492) [ClassicSimilarity], result of:
      0.02057882 = score(doc=1492,freq=6.0), product of:
        0.08751074 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.049850095 = queryNorm
        0.23515764 = fieldWeight in 1492, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1492)
    0.023639 = product of:
      0.047278 = sum of:
        0.047278 = weight(_text_:22 in 1492) [ClassicSimilarity], result of:
          0.047278 = score(doc=1492,freq=2.0), product of:
            0.17456654 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.049850095 = queryNorm
            0.2708308 = fieldWeight in 1492, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1492)
      0.5 = coord(1/2)
  0.4 = coord(2/5)
    Abstract
    Informationsdienste werden heutzutage von großen Teilen der Bevölkerung im Berufs- wie im Privatleben genutzt. Es ist ein wichtiges informationswissenschaftliches Thema, Informationsdienste adäquat zu beschreiben und ihre Qualität zu bewerten. Unser Information Service Evaluation (ISE) Modell führt unterschiedliche Traditionen der Evaluations- sowie der Technologieakzeptanzforschung zusammen und besteht aus fünf Dimensionen: Qualität des Informationsdienstes, Nutzer, Informationsakzeptanz, Informationsumfeld und Zeit. Der Überblicks­artikel erläutert diese Dimension und bietet einen Einblick in ein flexibel handhabbares und umfassendes holistisches Modell der Beschreibung und Bewertung von Informationsdiensten.
    Date
    22. 9.2014 18:56:46
    Source
    Information - Wissenschaft und Praxis. 65(2014) H.4/5, S.239-246
  13. Stock, W.G.: Hochschulmanagement, Information Appliances, Fairness als Grundsatz : Information und Mobilität (2002) 0.02 
    0.017488746 = product of:
  0.043721862 = sum of:
    0.026836865 = weight(_text_:information in 1364) [ClassicSimilarity], result of:
      0.026836865 = score(doc=1364,freq=20.0), product of:
        0.08751074 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.049850095 = queryNorm
        0.30666938 = fieldWeight in 1364, product of:
          4.472136 = tf(freq=20.0), with freq of:
            20.0 = termFreq=20.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0390625 = fieldNorm(doc=1364)
    0.016885 = product of:
      0.03377 = sum of:
        0.03377 = weight(_text_:22 in 1364) [ClassicSimilarity], result of:
          0.03377 = score(doc=1364,freq=2.0), product of:
            0.17456654 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.049850095 = queryNorm
            0.19345059 = fieldWeight in 1364, 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=1364)
      0.5 = coord(1/2)
  0.4 = coord(2/5)
    Abstract
    Was hat Information mit Mobilität zu tun? Nun, zunächst kann Information Mobilität unterstützen, Fahrerinformationssysteme sind ein bekanntes Beispiel. Information kann darüber hinaus unnötige Mobilität vermeiden helfen, indem die Information mobil wird und seinen Empfänger ortsungebunden findet. Die ' "ubiquitäre" Information erreicht den Außendienstmitarbeiter fern vom Back Office, den Studenten fern von der Hochschule oder einen Kollegen in seinem Home Office fern vom Standort der Firma. Information kann auch zu mehr Mobilität führen, denken wir nur an Lieferungen im Anschluss an Bestellungen im E-Commerce. (Dieser Aspekt wird allerdings in Regensburg nicht angesprochen). Letztendlich muss auch die "geistige Mobilität" beim Lehren und Lernen mit den neuen digitalen Medien genannt werden, eine Mobilität, die sich eher im Hintergrund abspielt, die aber einer 'stillen Revolution" gleichkommt. Das Generalthema "Information und Mobilität" des achten Internationalen Symposiums für Informationswissenschaft (ISI) wurde nicht zufällig beim diesjährigen Tagungsort in Regensburg gewählt, denn an der Universität Regensburg existiert seit Jahren ein interdisziplinäres Forschungszentrum für Information und Mobilität. Außerhalb des Generalthemas bringt das ISI - wie gewohnt - ein zusätzliches Spektrum informationswissenschaftlicher Themen und - auch wie gewohnt - mit dem "Best Student Paper Award" den Wettbewerb um die beste studentische Leistung der letzten zwei Jahre - diesmal mit einem Sieger und mit einem Sonderpreis. Fahrerinformationssysteme: akustische und/oder visuelle Metainformationen?
    Date
    22. 2.2003 19:39:36
  14. Stock, W.G.; Stock, M.: Handbook of information science : a comprehensive handbook (2013) 0.02 
    0.016587323 = product of:
  0.041468307 = sum of:
    0.013321568 = weight(_text_:on in 2784) [ClassicSimilarity], result of:
      0.013321568 = score(doc=2784,freq=2.0), product of:
        0.109641045 = queryWeight, product of:
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.049850095 = queryNorm
        0.121501654 = fieldWeight in 2784, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2784)
    0.02814674 = weight(_text_:information in 2784) [ClassicSimilarity], result of:
      0.02814674 = score(doc=2784,freq=22.0), product of:
        0.08751074 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.049850095 = queryNorm
        0.32163754 = fieldWeight in 2784, 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=2784)
  0.4 = coord(2/5)
    Abstract
    Dealing with information is one of the vital skills in the 21st century. It takes a fair degree of information savvy to create, represent and supply information as well as to search for and retrieve relevant knowledge. How does information (documents, pieces of knowledge) have to be organized in order to be retrievable? What role does metadata play? What are search engines on the Web, or in corporate intranets, and how do they work? How must one deal with natural language processing and tools of knowledge organization, such as thesauri, classification systems, and ontologies? How useful is social tagging? How valuable are intellectually created abstracts and automatically prepared extracts? Which empirical methods allow for user research and which for the evaluation of information systems? This Handbook is a basic work of information science, providing a comprehensive overview of the current state of information retrieval and knowledge representation. It addresses readers from all professions and scientific disciplines, but particularly scholars, practitioners and students of Information Science, Library Science, Computer Science, Information Management, and Knowledge Management. This Handbook is a suitable reference work for Public and Academic Libraries.
    Series
    Knowledge and Information
  15. Linde, F.; Stock, W.G.: Informationsmarkt : Informationen im I-Commerce anbieten und nachfragen (2011) 0.02 
    0.0162378 = product of:
  0.040594496 = sum of:
    0.013578499 = weight(_text_:information in 291) [ClassicSimilarity], result of:
      0.013578499 = score(doc=291,freq=2.0), product of:
        0.08751074 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.049850095 = queryNorm
        0.1551638 = fieldWeight in 291, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0625 = fieldNorm(doc=291)
    0.027015999 = product of:
      0.054031998 = sum of:
        0.054031998 = weight(_text_:22 in 291) [ClassicSimilarity], result of:
          0.054031998 = score(doc=291,freq=2.0), product of:
            0.17456654 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.049850095 = queryNorm
            0.30952093 = fieldWeight in 291, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=291)
      0.5 = coord(1/2)
  0.4 = coord(2/5)
    Abstract
    Mit dem Aufkommen der Wissensgesellschaft wird Information zum Wirtschaftsgut. Digitale Wirtschaftsgüter - Content wie Software - werden entweder selbst vermarktet (z.B. bei kommerziellen Informationsdiensten) oder dienen als Lockangebote für Werbung (z.B. bei Suchmaschinen mit "sponsored links"). Aufgrund der Besonderheiten des vertriebenen Produkts unterscheiden sich die Wettbewerbsstrategien von Informationsanbietern von denen nicht-digitaler Güter. Zu beachten ist zudem der "illegale" Informationsmarkt (Schwarzkopien). Im Zentrum des Buches steht zwar eine ökonomische Analyse des Informationsmarktes, behandelt werden aber auch Informationssoziologie und -politologie, Informationsrecht sowie Informationsethik.
    Date
    23. 9.2010 11:15:22
  16. Peters, I.; Stock, W.G.: Power tags in information retrieval (2010) 0.01 
    0.012117877 = product of:
  0.03029469 = sum of:
    0.013321568 = weight(_text_:on in 865) [ClassicSimilarity], result of:
      0.013321568 = score(doc=865,freq=2.0), product of:
        0.109641045 = queryWeight, product of:
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.049850095 = queryNorm
        0.121501654 = fieldWeight in 865, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.0390625 = fieldNorm(doc=865)
    0.016973123 = weight(_text_:information in 865) [ClassicSimilarity], result of:
      0.016973123 = score(doc=865,freq=8.0), product of:
        0.08751074 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.049850095 = queryNorm
        0.19395474 = fieldWeight in 865, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0390625 = fieldNorm(doc=865)
  0.4 = coord(2/5)
    Abstract
    Purpose - Many Web 2.0 services (including Library 2.0 catalogs) make use of folksonomies. The purpose of this paper is to cut off all tags in the long tail of a document-specific tag distribution. The remaining tags at the beginning of a tag distribution are considered power tags and form a new, additional search option in information retrieval systems. Design/methodology/approach - In a theoretical approach the paper discusses document-specific tag distributions (power law and inverse-logistic shape), the development of such distributions (Yule-Simon process and shuffling theory) and introduces search tags (besides the well-known index tags) as a possibility for generating tag distributions. Findings - Search tags are compatible with broad and narrow folksonomies and with all knowledge organization systems (e.g. classification systems and thesauri), while index tags are only applicable in broad folksonomies. Based on these findings, the paper presents a sketch of an algorithm for mining and processing power tags in information retrieval systems. Research limitations/implications - This conceptual approach is in need of empirical evaluation in a concrete retrieval system. Practical implications - Power tags are a new search option for retrieval systems to limit the amount of hits. Originality/value - The paper introduces power tags as a means for enhancing the precision of search results in information retrieval systems that apply folksonomies, e.g. catalogs in Library 2.0environments.
  17. Stock, M.; Stock, W.G.: Recherchieren im Internet (2004) 0.01 
    0.010806399 = product of:
  0.054031998 = sum of:
    0.054031998 = product of:
      0.108063996 = sum of:
        0.108063996 = weight(_text_:22 in 4686) [ClassicSimilarity], result of:
          0.108063996 = score(doc=4686,freq=2.0), product of:
            0.17456654 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.049850095 = queryNorm
            0.61904186 = fieldWeight in 4686, 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=4686)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
    Date
    27.11.2005 18:04:22
  18. Stock, W.G.; Schlögl, C.: Practitioners and academics as authors and readers : the case of LIS journals (2008) 0.01 
    0.010732384 = product of:
  0.02683096 = sum of:
    0.015071635 = weight(_text_:on in 2343) [ClassicSimilarity], result of:
      0.015071635 = score(doc=2343,freq=4.0), product of:
        0.109641045 = queryWeight, product of:
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.049850095 = queryNorm
        0.13746344 = fieldWeight in 2343, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.03125 = fieldNorm(doc=2343)
    0.011759326 = weight(_text_:information in 2343) [ClassicSimilarity], result of:
      0.011759326 = score(doc=2343,freq=6.0), product of:
        0.08751074 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.049850095 = queryNorm
        0.1343758 = fieldWeight in 2343, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03125 = fieldNorm(doc=2343)
  0.4 = coord(2/5)
    Abstract
    Purpose - The aim of this paper is to explore the relationship between practitioners and academics in scholarly communication in library and information science (LIS) journals. Design/methodology/approach - The research is based on a reader survey, a citation analysis and an editor survey. The reader survey identifies both differences in journal rankings between practitioners and academics and the contribution of practitioners to LIS journals. The editor survey provides the proportions of practitioners and academics for the journals. The citation analysis shows the disparities in information exchange between the journals mainly preferred by practitioners and those more favoured by academics. Furthermore, it is possible to explore if practitioner journals differ from academic journals in the citation indicators and in other data collected in the editor survey. Findings - It is found that: practitioners play an active role both as readers and as authors of articles in LIS journals; there is only a low level of information exchange between practitioner and academic journals; the placement of advertisements, the size of the editorial board, requirements concerning an extensive bibliography, the number and the half-life of the references show a clear distinction between practitioner and academic journals. Interestingly, the impact factor did not turn out to be a good indicator to differentiate a practitioner from an academic journal. Research limitations/implications - This research is only exploratory because it is based on separate studies previously conducted. Further research is also needed to explore the relationship between practitioners and academics more deeply. Originality/value - The value of this paper lies in bringing together the findings from complementary studies (reader survey, editor survey and citation analysis) and identifying hypotheses for future research, especially with regards to the roles of and interactions between LIS practitioners and academics in scholarly communication.
  19. Schloegl, C.; Stock, W.G.: Impact and relevance of LIS journals : a scientometric analysis of international and German-language LIS journals - Citation analysis versus reader survey (2004) 0.01 
    0.009340018 = product of:
  0.023350045 = sum of:
    0.013578499 = weight(_text_:information in 5249) [ClassicSimilarity], result of:
      0.013578499 = score(doc=5249,freq=8.0), product of:
        0.08751074 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.049850095 = queryNorm
        0.1551638 = fieldWeight in 5249, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03125 = fieldNorm(doc=5249)
    0.009771545 = product of:
      0.01954309 = sum of:
        0.01954309 = weight(_text_:technology in 5249) [ClassicSimilarity], result of:
          0.01954309 = score(doc=5249,freq=2.0), product of:
            0.14847288 = queryWeight, product of:
              2.978387 = idf(docFreq=6114, maxDocs=44218)
              0.049850095 = queryNorm
            0.13162735 = fieldWeight in 5249, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.978387 = idf(docFreq=6114, maxDocs=44218)
              0.03125 = fieldNorm(doc=5249)
      0.5 = coord(1/2)
  0.4 = coord(2/5)
    Abstract
    The goal of the scientometric analysis presented in this article was to investigate international and regional (i.e., German-language) periodicals in the field of library and information science (LIS). This was done by means of a citation analysis and a reader survey. For the citation analysis, impact factor, citing half-life, number of references per article, and the rate of self-references of a periodical were used as indicators. In addition, the leading LIS periodicals were mapped. For the 40 international periodicals, data were collected from ISI's Social Sciences Citation Index Journal Citation Reports (JCR); the citations of the 10 German-language journals were counted manually (overall 1,494 source articles with 10,520 citations). Altogether, the empirical base of the citation analysis consisted of nearly 90,000 citations in 6,203 source articles that were published between 1997 and 2000. The expert survey investigated reading frequency, applicability of the journals to the job of the reader, publication frequency, and publication preference both for all respondents and for different groups among them (practitioners vs. scientists, librarians vs. documentalists vs. LIS scholars, public sector vs. information industry vs. other private company employees). The study was conducted in spring 2002. A total of 257 questionnaires were returned by information specialists from Germany, Austria, and Switzerland. Having both citation and readership data, we performed a comparative analysis of these two data sets. This enabled us to identify answers to questions like: Does reading behavior correlate with the journal impact factor? Do readers prefer journals with a short or a long half-life, or with a low or a high number of references? Is there any difference in this matter among librarians, documentalists, and LIS scholars?
    Source
    Journal of the American Society for Information Science and Technology. 55(2004) no.13, S.1155-1168
  20. Stock, W.G.: Wirtschaftsinformationen aus informetrischen Online-Recherchen (1992) 0.01 
    0.007055595 = product of:
  0.035277974 = sum of:
    0.035277974 = weight(_text_:information in 8367) [ClassicSimilarity], result of:
      0.035277974 = score(doc=8367,freq=6.0), product of:
        0.08751074 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.049850095 = queryNorm
        0.40312737 = fieldWeight in 8367, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.09375 = fieldNorm(doc=8367)
  0.2 = coord(1/5)
    Abstract
    Online databases can be used for statistical analysis, creating new information. Discusses 4 methods applied to economic information: time series, rankings, semantic networks, and graphs of information flow

Authors

Years

Languages

  • d 43
  • e 18

Types

  • a 51
  • m 11
  • r 1
  • x 1
  • More… Less…

Themes

Subjects

Classifications