-
Stock, W.G.: Wissenschaftsinformatik : Fundierung, Gegenstand und Methoden (1980)
0.02
0.017032763 = product of:
0.051098287 = sum of:
0.051098287 = product of:
0.102196574 = sum of:
0.102196574 = weight(_text_:22 in 2808) [ClassicSimilarity], result of:
0.102196574 = score(doc=2808,freq=2.0), product of:
0.16508831 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047143444 = 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)
0.33333334 = coord(1/3)
- Source
- Ratio. 22(1980), S.155-164
-
Stock, W.G.: Informationsmangel trotz Überfluß : Informationsgesellschaft verlangt neue Berufe und Berufsbilder (1995)
0.02
0.017032763 = product of:
0.051098287 = sum of:
0.051098287 = product of:
0.102196574 = sum of:
0.102196574 = weight(_text_:22 in 2027) [ClassicSimilarity], result of:
0.102196574 = score(doc=2027,freq=2.0), product of:
0.16508831 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047143444 = 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)
0.33333334 = coord(1/3)
- Source
- Insider. 1995, Nr.4, Juli, S.19-22
-
Stock, M.; Stock, W.G.: Recherchieren im Internet (2004)
0.02
0.017032763 = product of:
0.051098287 = sum of:
0.051098287 = product of:
0.102196574 = sum of:
0.102196574 = weight(_text_:22 in 4686) [ClassicSimilarity], result of:
0.102196574 = score(doc=4686,freq=2.0), product of:
0.16508831 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047143444 = 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)
0.33333334 = coord(1/3)
- Date
- 27.11.2005 18:04:22
-
Stock, W.G.: Endnutzersystem für internationale Geschäftsinformationen (1998)
0.01
0.014903667 = product of:
0.044711 = sum of:
0.044711 = product of:
0.089422 = sum of:
0.089422 = weight(_text_:22 in 2407) [ClassicSimilarity], result of:
0.089422 = score(doc=2407,freq=2.0), product of:
0.16508831 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047143444 = 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)
0.33333334 = coord(1/3)
- Source
- Password. 1998, H.10, S.22-28
-
Stock, W.G.: On relevance distributions (2006)
0.01
0.014092816 = product of:
0.042278446 = sum of:
0.042278446 = product of:
0.08455689 = sum of:
0.08455689 = weight(_text_:methodology in 5116) [ClassicSimilarity], result of:
0.08455689 = score(doc=5116,freq=2.0), product of:
0.21236731 = queryWeight, product of:
4.504705 = idf(docFreq=1328, maxDocs=44218)
0.047143444 = queryNorm
0.3981634 = fieldWeight in 5116, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.504705 = idf(docFreq=1328, maxDocs=44218)
0.0625 = fieldNorm(doc=5116)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- 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.
-
Garfield, E.; Stock, W.G.: Citation Consciousness : Interview with Eugene Garfiels, chairman emeritus of ISI; Philadelphia (2002)
0.01
0.010645477 = product of:
0.03193643 = sum of:
0.03193643 = product of:
0.06387286 = sum of:
0.06387286 = weight(_text_:22 in 613) [ClassicSimilarity], result of:
0.06387286 = score(doc=613,freq=2.0), product of:
0.16508831 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047143444 = queryNorm
0.38690117 = fieldWeight in 613, 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=613)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Source
- Password. 2002, H.6, S.22-25
-
Knautz, K.; Stock, W.G.: Collective indexing of emotions in videos (2011)
0.01
0.00880801 = product of:
0.02642403 = sum of:
0.02642403 = product of:
0.05284806 = sum of:
0.05284806 = weight(_text_:methodology in 295) [ClassicSimilarity], result of:
0.05284806 = score(doc=295,freq=2.0), product of:
0.21236731 = queryWeight, product of:
4.504705 = idf(docFreq=1328, maxDocs=44218)
0.047143444 = queryNorm
0.24885213 = fieldWeight in 295, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.504705 = idf(docFreq=1328, maxDocs=44218)
0.0390625 = fieldNorm(doc=295)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Abstract
- Purpose - The object of this empirical research study is emotion, as depicted and aroused in videos. This paper seeks to answer the questions: Are users able to index such emotions consistently? Are the users' votes usable for emotional video retrieval? Design/methodology/approach - The authors worked with a controlled vocabulary for nine basic emotions (love, happiness, fun, surprise, desire, sadness, anger, disgust and fear), a slide control for adjusting the emotions' intensity, and the approach of broad folksonomies. Different users tagged the same videos. The test persons had the task of indexing the emotions of 20 videos (reprocessed clips from YouTube). The authors distinguished between emotions which were depicted in the video and those that were evoked in the user. Data were received from 776 participants and a total of 279,360 slide control values were analyzed. Findings - The consistency of the users' votes is very high; the tag distributions for the particular videos' emotions are stable. The final shape of the distributions will be reached by the tagging activities of only very few users (less than 100). By applying the approach of power tags it is possible to separate the pivotal emotions of every document - if indeed there is any feeling at all. Originality/value - This paper is one of the first steps in the new research area of emotional information retrieval (EmIR). To the authors' knowledge, it is the first research project into the collective indexing of emotions in videos.
-
Peters, I.; Stock, W.G.: Power tags in information retrieval (2010)
0.01
0.00880801 = product of:
0.02642403 = sum of:
0.02642403 = product of:
0.05284806 = sum of:
0.05284806 = weight(_text_:methodology in 865) [ClassicSimilarity], result of:
0.05284806 = score(doc=865,freq=2.0), product of:
0.21236731 = queryWeight, product of:
4.504705 = idf(docFreq=1328, maxDocs=44218)
0.047143444 = queryNorm
0.24885213 = fieldWeight in 865, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.504705 = idf(docFreq=1328, maxDocs=44218)
0.0390625 = fieldNorm(doc=865)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- 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.
-
Linde, F.; Stock, W.G.: Informationsmarkt : Informationen im I-Commerce anbieten und nachfragen (2011)
0.01
0.0085163815 = product of:
0.025549144 = sum of:
0.025549144 = product of:
0.051098287 = sum of:
0.051098287 = weight(_text_:22 in 291) [ClassicSimilarity], result of:
0.051098287 = score(doc=291,freq=2.0), product of:
0.16508831 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047143444 = 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)
0.33333334 = coord(1/3)
- Date
- 23. 9.2010 11:15:22
-
Schumann, L.; Stock, W.G.: ¬Ein umfassendes ganzheitliches Modell für Evaluation und Akzeptanzanalysen von Informationsdiensten : Das Information Service Evaluation (ISE) Modell (2014)
0.01
0.0074518337 = product of:
0.0223555 = sum of:
0.0223555 = product of:
0.044711 = sum of:
0.044711 = weight(_text_:22 in 1492) [ClassicSimilarity], result of:
0.044711 = score(doc=1492,freq=2.0), product of:
0.16508831 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047143444 = 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)
0.33333334 = coord(1/3)
- Date
- 22. 9.2014 18:56:46
-
Stock, W.G.; Schlögl, C.: Practitioners and academics as authors and readers : the case of LIS journals (2008)
0.01
0.007046408 = product of:
0.021139223 = sum of:
0.021139223 = product of:
0.042278446 = sum of:
0.042278446 = weight(_text_:methodology in 2343) [ClassicSimilarity], result of:
0.042278446 = score(doc=2343,freq=2.0), product of:
0.21236731 = queryWeight, product of:
4.504705 = idf(docFreq=1328, maxDocs=44218)
0.047143444 = queryNorm
0.1990817 = fieldWeight in 2343, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.504705 = idf(docFreq=1328, maxDocs=44218)
0.03125 = fieldNorm(doc=2343)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- 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.
-
Stock, W.G.: Qualitätskriterien von Suchmaschinen : Checkliste für Retrievalsysteme (2000)
0.01
0.0053227386 = product of:
0.015968215 = sum of:
0.015968215 = product of:
0.03193643 = sum of:
0.03193643 = weight(_text_:22 in 5773) [ClassicSimilarity], result of:
0.03193643 = score(doc=5773,freq=2.0), product of:
0.16508831 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047143444 = queryNorm
0.19345059 = fieldWeight in 5773, 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=5773)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Source
- Password. 2000, H.5, S.22-31
-
Stock, W.G.: Hochschulmanagement, Information Appliances, Fairness als Grundsatz : Information und Mobilität (2002)
0.01
0.0053227386 = product of:
0.015968215 = sum of:
0.015968215 = product of:
0.03193643 = sum of:
0.03193643 = weight(_text_:22 in 1364) [ClassicSimilarity], result of:
0.03193643 = score(doc=1364,freq=2.0), product of:
0.16508831 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047143444 = 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)
0.33333334 = coord(1/3)
- Date
- 22. 2.2003 19:39:36
-
Stock, W.G.: Informational cities : analysis and construction of cities in the knowledge society (2011)
0.01
0.0053227386 = product of:
0.015968215 = sum of:
0.015968215 = product of:
0.03193643 = sum of:
0.03193643 = weight(_text_:22 in 4452) [ClassicSimilarity], result of:
0.03193643 = score(doc=4452,freq=2.0), product of:
0.16508831 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.047143444 = 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)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 3. 7.2011 19:22:49
