-
Informationswissenschaft zwischen virtueller Infrastruktur und materiellen Lebenswelten : Proceedings des 13. Internationalen Symposiums für Informationswissenschaft (ISI 2013), Potsdam, 19.-22. März 2013. (2013)
0.04
0.041786816 = product of:
0.08357363 = sum of:
0.08357363 = sum of:
0.04668439 = weight(_text_:t in 2979) [ClassicSimilarity], result of:
0.04668439 = score(doc=2979,freq=2.0), product of:
0.17876579 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04537884 = queryNorm
0.26114836 = fieldWeight in 2979, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.046875 = fieldNorm(doc=2979)
0.03688924 = weight(_text_:22 in 2979) [ClassicSimilarity], result of:
0.03688924 = score(doc=2979,freq=2.0), product of:
0.15890898 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04537884 = queryNorm
0.23214069 = fieldWeight in 2979, 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=2979)
0.5 = coord(1/2)
- Abstract
- Das 13. Internationale Symposium für Informationswissenschaft (ISI 2013) führt die alle zwei Jahre stattfindende Tagung des Hochschulverbandes für Informationswissenschaft (HI) fort. Sie stellt stets ein Schaufenster auf die aktuelle Diskussion der Informationswissenschaft als Fachdisziplin zwischen Informatik, Interface Design, Computerlinguistik und benachbarten Sozialwissenschaften dar. Die eingereichten Beiträge stammen vorwiegend von (fast) allen Lehrstühlen und Instituten der Informationswissenschaft in den deutschsprachigen Ländern. In Kooperation mit dem amerikanischen Schwesterverband, der "Association of Information Science and Technology" (ASIS&T), gelang es wieder, neben den herausragenden Keynotes auch weitere internationale Beiträge zu integrieren und auf diese Weise die europäisch-deutschsprachige Informationswissenschaft mit dem internationalen Diskurs zu verbinden. Das Motto der Tagung verweist auf die aktuellen Veränderungen in der Fachdisziplin und in den vorherrschenden Anwendungsfeldern. Wie in vielen Wissenschaften vollzieht sich auch in der Informationswissenschaft ein vielfältiger Paradigmenwechsel, der auf den Wandel zur "digitalen Gesellschaft" reagiert. Neben klassischen Themengebieten wie Information Retrieval, Metadaten, Usability, Portalen, neuen Medientechnologien oder Bibliometrie rücken deshalb Fragen des Informationsverhaltens und der tatsächlichen "Informationspraxis" immer mehr in den Fokus.
-
Zhao, G.; Wu, J.; Wang, D.; Li, T.: Entity disambiguation to Wikipedia using collective ranking (2016)
0.04
0.041786816 = product of:
0.08357363 = sum of:
0.08357363 = sum of:
0.04668439 = weight(_text_:t in 3266) [ClassicSimilarity], result of:
0.04668439 = score(doc=3266,freq=2.0), product of:
0.17876579 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04537884 = queryNorm
0.26114836 = fieldWeight in 3266, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.046875 = fieldNorm(doc=3266)
0.03688924 = weight(_text_:22 in 3266) [ClassicSimilarity], result of:
0.03688924 = score(doc=3266,freq=2.0), product of:
0.15890898 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04537884 = queryNorm
0.23214069 = fieldWeight in 3266, 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=3266)
0.5 = coord(1/2)
- Date
- 24.10.2016 19:22:54
-
Busch, D.: Domänenspezifische hybride automatische Indexierung von bibliographischen Metadaten (2019)
0.04
0.041786816 = product of:
0.08357363 = sum of:
0.08357363 = sum of:
0.04668439 = weight(_text_:t in 5628) [ClassicSimilarity], result of:
0.04668439 = score(doc=5628,freq=2.0), product of:
0.17876579 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04537884 = queryNorm
0.26114836 = fieldWeight in 5628, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.046875 = fieldNorm(doc=5628)
0.03688924 = weight(_text_:22 in 5628) [ClassicSimilarity], result of:
0.03688924 = score(doc=5628,freq=2.0), product of:
0.15890898 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04537884 = queryNorm
0.23214069 = fieldWeight in 5628, 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=5628)
0.5 = coord(1/2)
- Content
- Vgl.: https://www.b-i-t-online.de/heft/2019-06-index.php.
- Source
- B.I.T.online. 22(2019) H.6, S.465-469
-
Münch, V.: They have a dream (2019)
0.04
0.041786816 = product of:
0.08357363 = sum of:
0.08357363 = sum of:
0.04668439 = weight(_text_:t in 5631) [ClassicSimilarity], result of:
0.04668439 = score(doc=5631,freq=2.0), product of:
0.17876579 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04537884 = queryNorm
0.26114836 = fieldWeight in 5631, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.046875 = fieldNorm(doc=5631)
0.03688924 = weight(_text_:22 in 5631) [ClassicSimilarity], result of:
0.03688924 = score(doc=5631,freq=2.0), product of:
0.15890898 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04537884 = queryNorm
0.23214069 = fieldWeight in 5631, 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=5631)
0.5 = coord(1/2)
- Content
- Vgl.: https://www.b-i-t-online.de/heft/2019-01-index.php.
- Source
- B.I.T.online. 22(2019) H.1, S.25-39
-
Heuss, T.; Humm, B.; Deuschel, T.; Frohlich, T.; Herth, T.; Mitesser, O.: Semantically guided, situation-aware literature research (2015)
0.04
0.03890366 = product of:
0.07780732 = sum of:
0.07780732 = product of:
0.15561464 = sum of:
0.15561464 = weight(_text_:t in 2556) [ClassicSimilarity], result of:
0.15561464 = score(doc=2556,freq=8.0), product of:
0.17876579 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04537884 = queryNorm
0.87049454 = fieldWeight in 2556, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.078125 = fieldNorm(doc=2556)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Schubert, T.; Michels, C.: Placing articles in the large publisher nations : is there a "free lunch" in terms of higher impact? (2013)
0.03
0.03482235 = product of:
0.0696447 = sum of:
0.0696447 = sum of:
0.03890366 = weight(_text_:t in 669) [ClassicSimilarity], result of:
0.03890366 = score(doc=669,freq=2.0), product of:
0.17876579 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04537884 = queryNorm
0.21762364 = fieldWeight in 669, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.0390625 = fieldNorm(doc=669)
0.030741034 = weight(_text_:22 in 669) [ClassicSimilarity], result of:
0.030741034 = score(doc=669,freq=2.0), product of:
0.15890898 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04537884 = queryNorm
0.19345059 = fieldWeight in 669, 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=669)
0.5 = coord(1/2)
- Date
- 22. 3.2013 19:45:49
-
He, R.; Wang, J.; Tian, J.; Chu, C.-T.; Mauney, B.; Perisic, I.: Session analysis of people search within a professional social network (2013)
0.03
0.03482235 = product of:
0.0696447 = sum of:
0.0696447 = sum of:
0.03890366 = weight(_text_:t in 743) [ClassicSimilarity], result of:
0.03890366 = score(doc=743,freq=2.0), product of:
0.17876579 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04537884 = queryNorm
0.21762364 = fieldWeight in 743, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.0390625 = fieldNorm(doc=743)
0.030741034 = weight(_text_:22 in 743) [ClassicSimilarity], result of:
0.030741034 = score(doc=743,freq=2.0), product of:
0.15890898 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04537884 = queryNorm
0.19345059 = fieldWeight in 743, 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=743)
0.5 = coord(1/2)
- Date
- 19. 4.2013 20:31:22
-
Open MIND (2015)
0.03
0.03482235 = product of:
0.0696447 = sum of:
0.0696447 = sum of:
0.03890366 = weight(_text_:t in 1648) [ClassicSimilarity], result of:
0.03890366 = score(doc=1648,freq=2.0), product of:
0.17876579 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04537884 = queryNorm
0.21762364 = fieldWeight in 1648, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.0390625 = fieldNorm(doc=1648)
0.030741034 = weight(_text_:22 in 1648) [ClassicSimilarity], result of:
0.030741034 = score(doc=1648,freq=2.0), product of:
0.15890898 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04537884 = queryNorm
0.19345059 = fieldWeight in 1648, 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=1648)
0.5 = coord(1/2)
- Date
- 27. 1.2015 11:48:22
- Editor
- Metzinger, T. u.. J.M. Windt
-
White, H.; Willis, C.; Greenberg, J.: HIVEing : the effect of a semantic web technology on inter-indexer consistency (2014)
0.03
0.03482235 = product of:
0.0696447 = sum of:
0.0696447 = sum of:
0.03890366 = weight(_text_:t in 1781) [ClassicSimilarity], result of:
0.03890366 = score(doc=1781,freq=2.0), product of:
0.17876579 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04537884 = queryNorm
0.21762364 = fieldWeight in 1781, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.0390625 = fieldNorm(doc=1781)
0.030741034 = weight(_text_:22 in 1781) [ClassicSimilarity], result of:
0.030741034 = score(doc=1781,freq=2.0), product of:
0.15890898 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04537884 = queryNorm
0.19345059 = fieldWeight in 1781, 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=1781)
0.5 = coord(1/2)
- Abstract
- Purpose - The purpose of this paper is to examine the effect of the Helping Interdisciplinary Vocabulary Engineering (HIVE) system on the inter-indexer consistency of information professionals when assigning keywords to a scientific abstract. This study examined first, the inter-indexer consistency of potential HIVE users; second, the impact HIVE had on consistency; and third, challenges associated with using HIVE. Design/methodology/approach - A within-subjects quasi-experimental research design was used for this study. Data were collected using a task-scenario based questionnaire. Analysis was performed on consistency results using Hooper's and Rolling's inter-indexer consistency measures. A series of t-tests was used to judge the significance between consistency measure results. Findings - Results suggest that HIVE improves inter-indexing consistency. Working with HIVE increased consistency rates by 22 percent (Rolling's) and 25 percent (Hooper's) when selecting relevant terms from all vocabularies. A statistically significant difference exists between the assignment of free-text keywords and machine-aided keywords. Issues with homographs, disambiguation, vocabulary choice, and document structure were all identified as potential challenges. Research limitations/implications - Research limitations for this study can be found in the small number of vocabularies used for the study. Future research will include implementing HIVE into the Dryad Repository and studying its application in a repository system. Originality/value - This paper showcases several features used in HIVE system. By using traditional consistency measures to evaluate a semantic web technology, this paper emphasizes the link between traditional indexing and next generation machine-aided indexing (MAI) tools.
-
Ravana, S.D.; Taheri, M.S.; Rajagopal, P.: Document-based approach to improve the accuracy of pairwise comparison in evaluating information retrieval systems (2015)
0.03
0.03482235 = product of:
0.0696447 = sum of:
0.0696447 = sum of:
0.03890366 = weight(_text_:t in 2587) [ClassicSimilarity], result of:
0.03890366 = score(doc=2587,freq=2.0), product of:
0.17876579 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04537884 = queryNorm
0.21762364 = fieldWeight in 2587, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.0390625 = fieldNorm(doc=2587)
0.030741034 = weight(_text_:22 in 2587) [ClassicSimilarity], result of:
0.030741034 = score(doc=2587,freq=2.0), product of:
0.15890898 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04537884 = queryNorm
0.19345059 = fieldWeight in 2587, 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=2587)
0.5 = coord(1/2)
- Abstract
- Purpose The purpose of this paper is to propose a method to have more accurate results in comparing performance of the paired information retrieval (IR) systems with reference to the current method, which is based on the mean effectiveness scores of the systems across a set of identified topics/queries. Design/methodology/approach Based on the proposed approach, instead of the classic method of using a set of topic scores, the documents level scores are considered as the evaluation unit. These document scores are the defined document's weight, which play the role of the mean average precision (MAP) score of the systems as a significance test's statics. The experiments were conducted using the TREC 9 Web track collection. Findings The p-values generated through the two types of significance tests, namely the Student's t-test and Mann-Whitney show that by using the document level scores as an evaluation unit, the difference between IR systems is more significant compared with utilizing topic scores. Originality/value Utilizing a suitable test collection is a primary prerequisite for IR systems comparative evaluation. However, in addition to reusable test collections, having an accurate statistical testing is a necessity for these evaluations. The findings of this study will assist IR researchers to evaluate their retrieval systems and algorithms more accurately.
- Date
- 20. 1.2015 18:30:22
-
Kiren, T.; Shoaib, M.: ¬A novel ontology matching approach using key concepts (2016)
0.03
0.03482235 = product of:
0.0696447 = sum of:
0.0696447 = sum of:
0.03890366 = weight(_text_:t in 2589) [ClassicSimilarity], result of:
0.03890366 = score(doc=2589,freq=2.0), product of:
0.17876579 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04537884 = queryNorm
0.21762364 = fieldWeight in 2589, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.0390625 = fieldNorm(doc=2589)
0.030741034 = weight(_text_:22 in 2589) [ClassicSimilarity], result of:
0.030741034 = score(doc=2589,freq=2.0), product of:
0.15890898 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04537884 = queryNorm
0.19345059 = fieldWeight in 2589, 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=2589)
0.5 = coord(1/2)
- Date
- 20. 1.2015 18:30:22
-
Balakrishnan, V.; Ahmadi, K.; Ravana, S.D.: Improving retrieval relevance using users' explicit feedback (2016)
0.03
0.03482235 = product of:
0.0696447 = sum of:
0.0696447 = sum of:
0.03890366 = weight(_text_:t in 2921) [ClassicSimilarity], result of:
0.03890366 = score(doc=2921,freq=2.0), product of:
0.17876579 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04537884 = queryNorm
0.21762364 = fieldWeight in 2921, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.0390625 = fieldNorm(doc=2921)
0.030741034 = weight(_text_:22 in 2921) [ClassicSimilarity], result of:
0.030741034 = score(doc=2921,freq=2.0), product of:
0.15890898 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04537884 = queryNorm
0.19345059 = fieldWeight in 2921, 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=2921)
0.5 = coord(1/2)
- Abstract
- Purpose The purpose of this paper is to improve users' search results relevancy by manipulating their explicit feedback. Design/methodology/approach CoRRe - an explicit feedback model integrating three popular feedback, namely, Comment-Rating-Referral is proposed in this study. The model is further enhanced using case-based reasoning in retrieving the top-5 results. A search engine prototype was developed using Text REtrieval Conference as the document collection, and results were evaluated at three levels (i.e. top-5, 10 and 15). A user evaluation involving 28 students was administered, focussing on 20 queries. Findings Both Mean Average Precision and Normalized Discounted Cumulative Gain results indicate CoRRe to have the highest retrieval precisions at all the three levels compared to the other feedback models. Furthermore, independent t-tests showed the precision differences to be significant. Rating was found to be the most popular technique among the participants, producing the best precision compared to referral and comments. Research limitations/implications The findings suggest that search retrieval relevance can be significantly improved when users' explicit feedback are integrated, therefore web-based systems should find ways to manipulate users' feedback to provide better recommendations or search results to the users. Originality/value The study is novel in the sense that users' comment, rating and referral were taken into consideration to improve their overall search experience.
- Date
- 20. 1.2015 18:30:22
-
Wu, K.-C.; Hsieh, T.-Y.: Affective choosing of clustering and categorization representations in e-book interfaces (2016)
0.03
0.03482235 = product of:
0.0696447 = sum of:
0.0696447 = sum of:
0.03890366 = weight(_text_:t in 3070) [ClassicSimilarity], result of:
0.03890366 = score(doc=3070,freq=2.0), product of:
0.17876579 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04537884 = queryNorm
0.21762364 = fieldWeight in 3070, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.0390625 = fieldNorm(doc=3070)
0.030741034 = weight(_text_:22 in 3070) [ClassicSimilarity], result of:
0.030741034 = score(doc=3070,freq=2.0), product of:
0.15890898 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04537884 = queryNorm
0.19345059 = fieldWeight in 3070, 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=3070)
0.5 = coord(1/2)
- Date
- 20. 1.2015 18:30:22
-
Bronstein, J.; Gazit, T.; Perez, O.; Bar-Ilan, J.; Aharony, N.; Amichai-Hamburger, Y.: ¬An examination of the factors contributing to participation in online social platforms (2016)
0.03
0.03482235 = product of:
0.0696447 = sum of:
0.0696447 = sum of:
0.03890366 = weight(_text_:t in 3364) [ClassicSimilarity], result of:
0.03890366 = score(doc=3364,freq=2.0), product of:
0.17876579 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04537884 = queryNorm
0.21762364 = fieldWeight in 3364, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.0390625 = fieldNorm(doc=3364)
0.030741034 = weight(_text_:22 in 3364) [ClassicSimilarity], result of:
0.030741034 = score(doc=3364,freq=2.0), product of:
0.15890898 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04537884 = queryNorm
0.19345059 = fieldWeight in 3364, 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=3364)
0.5 = coord(1/2)
- Date
- 20. 1.2015 18:30:22
-
Ortega, J.L.: ¬The presence of academic journals on Twitter and its relationship with dissemination (tweets) and research impact (citations) (2017)
0.03
0.03482235 = product of:
0.0696447 = sum of:
0.0696447 = sum of:
0.03890366 = weight(_text_:t in 4410) [ClassicSimilarity], result of:
0.03890366 = score(doc=4410,freq=2.0), product of:
0.17876579 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04537884 = queryNorm
0.21762364 = fieldWeight in 4410, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.0390625 = fieldNorm(doc=4410)
0.030741034 = weight(_text_:22 in 4410) [ClassicSimilarity], result of:
0.030741034 = score(doc=4410,freq=2.0), product of:
0.15890898 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04537884 = queryNorm
0.19345059 = fieldWeight in 4410, 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=4410)
0.5 = coord(1/2)
- Abstract
- Purpose The purpose of this paper is to analyze the relationship between dissemination of research papers on Twitter and its influence on research impact. Design/methodology/approach Four types of journal Twitter accounts (journal, owner, publisher and no Twitter account) were defined to observe differences in the number of tweets and citations. In total, 4,176 articles from 350 journals were extracted from Plum Analytics. This altmetric provider tracks the number of tweets and citations for each paper. Student's t-test for two-paired samples was used to detect significant differences between each group of journals. Regression analysis was performed to detect which variables may influence the getting of tweets and citations. Findings The results show that journals with their own Twitter account obtain more tweets (46 percent) and citations (34 percent) than journals without a Twitter account. Followers is the variable that attracts more tweets (ß=0.47) and citations (ß=0.28) but the effect is small and the fit is not good for tweets (R2=0.46) and insignificant for citations (R2=0.18). Originality/value This is the first study that tests the performance of research journals on Twitter according to their handles, observing how the dissemination of content in this microblogging network influences the citation of their papers.
- Date
- 20. 1.2015 18:30:22
-
Maungwa, T.; Fourie, I.: Competitive intelligence failures : an information behaviour lens to key intelligence and information needs (2018)
0.03
0.03482235 = product of:
0.0696447 = sum of:
0.0696447 = sum of:
0.03890366 = weight(_text_:t in 4636) [ClassicSimilarity], result of:
0.03890366 = score(doc=4636,freq=2.0), product of:
0.17876579 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04537884 = queryNorm
0.21762364 = fieldWeight in 4636, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.0390625 = fieldNorm(doc=4636)
0.030741034 = weight(_text_:22 in 4636) [ClassicSimilarity], result of:
0.030741034 = score(doc=4636,freq=2.0), product of:
0.15890898 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04537884 = queryNorm
0.19345059 = fieldWeight in 4636, 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=4636)
0.5 = coord(1/2)
- Date
- 20. 1.2015 18:30:22
-
Frâncu, V.; Popescu, T.: Twenty years after : scientific research in the field of knowledge organization in Romania (1993-2012) (2014)
0.03
0.03482235 = product of:
0.0696447 = sum of:
0.0696447 = sum of:
0.03890366 = weight(_text_:t in 4692) [ClassicSimilarity], result of:
0.03890366 = score(doc=4692,freq=2.0), product of:
0.17876579 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04537884 = queryNorm
0.21762364 = fieldWeight in 4692, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.0390625 = fieldNorm(doc=4692)
0.030741034 = weight(_text_:22 in 4692) [ClassicSimilarity], result of:
0.030741034 = score(doc=4692,freq=2.0), product of:
0.15890898 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04537884 = queryNorm
0.19345059 = fieldWeight in 4692, 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=4692)
0.5 = coord(1/2)
- Source
- Knowledge organization in the 21st century: between historical patterns and future prospects. Proceedings of the Thirteenth International ISKO Conference 19-22 May 2014, Kraków, Poland. Ed.: Wieslaw Babik
-
Rahmi, R.; Joho, H.; Shirai, T.: ¬An analysis of natural disaster-related information-seeking behavior using temporal stages (2019)
0.03
0.03482235 = product of:
0.0696447 = sum of:
0.0696447 = sum of:
0.03890366 = weight(_text_:t in 5298) [ClassicSimilarity], result of:
0.03890366 = score(doc=5298,freq=2.0), product of:
0.17876579 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04537884 = queryNorm
0.21762364 = fieldWeight in 5298, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.0390625 = fieldNorm(doc=5298)
0.030741034 = weight(_text_:22 in 5298) [ClassicSimilarity], result of:
0.030741034 = score(doc=5298,freq=2.0), product of:
0.15890898 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04537884 = queryNorm
0.19345059 = fieldWeight in 5298, 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=5298)
0.5 = coord(1/2)
- Date
- 12. 6.2019 13:22:15
-
Jötten, F.: Im Handumdrehen : 30 Jahre Rubik's Cube (2010)
0.03
0.03295122 = product of:
0.06590244 = sum of:
0.06590244 = sum of:
0.031122928 = weight(_text_:t in 3919) [ClassicSimilarity], result of:
0.031122928 = score(doc=3919,freq=2.0), product of:
0.17876579 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04537884 = queryNorm
0.17409891 = fieldWeight in 3919, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.03125 = fieldNorm(doc=3919)
0.03477951 = weight(_text_:22 in 3919) [ClassicSimilarity], result of:
0.03477951 = score(doc=3919,freq=4.0), product of:
0.15890898 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04537884 = queryNorm
0.21886435 = fieldWeight in 3919, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03125 = fieldNorm(doc=3919)
0.5 = coord(1/2)
- Content
- Heute liegen die Verkaufszahlen bei insgesamt 350 Millionen, damit ist der Zauberwürfel wohl das meistverkaufte Spielzeug aller Zeiten. Eben erlebt er eine Renaissance. Man kann T-Shirts, Lautsprecher und Taschen kaufen, die sein Muster tragen, der US-Songwriter Adam Green singt, dass er mit dem Würfel begraben werden möchte. Der Weltrekord im beidhändigen Lösen eines zufällig verdrehten Würfels beträgt 7,08, einhändig 11,97, mit den Füßen 36,72 und mit verbundenen Augen 23,06 - Sekunden! In diesen Disziplinen gibt es Welt- und Europameisterschaften und offizielle Rekordlisten der "World Cube Association". Aber es gibt auch inoffizielle Weltrekorde, zum Beispiel im betrunkenen Zustand (angeblich 11,84 Sekunden) oder während eines Fallschirmsprungs (47 Sekunden). Ob es daran liegt, dass er in einer Welt, in der Spiele virtueller werden, ein haptischer Gegenentwurf ist - der Zauberwürfel begeistert die Menschen in aller Welt. "Jeder versteht ihn intuitiv", sagte sein Erfinder Ernö Rubik, 66, der zurückgezogen in Budapest lebt, vor zwei Jahren der Wochenzeitung Die Zeit. Ihn interessiere im Übrigen die schnelle Lösung nicht. Auch die kleinstmögliche Anzahl der Züge, die Forscher jetzt ermittelt haben, sei ihm nicht wichtig. "Der kürzeste Weg ist nicht unbedingt der schönste", sagte er."
- Date
- 17. 7.1996 9:33:22
21. 8.2010 17:22:45
-
Wattenberg, M.; Viégas, F.; Johnson, I.: How to use t-SNE effectively (2016)
0.03
0.031122928 = product of:
0.062245857 = sum of:
0.062245857 = product of:
0.124491714 = sum of:
0.124491714 = weight(_text_:t in 3887) [ClassicSimilarity], result of:
0.124491714 = score(doc=3887,freq=8.0), product of:
0.17876579 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04537884 = queryNorm
0.69639564 = fieldWeight in 3887, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.0625 = fieldNorm(doc=3887)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- Although extremely useful for visualizing high-dimensional data, t-SNE plots can sometimes be mysterious or misleading. By exploring how it behaves in simple cases, we can learn to use it more effectively. We'll walk through a series of simple examples to illustrate what t-SNE diagrams can and cannot show. The t-SNE technique really is useful-but only if you know how to interpret it.
