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81.
Towards mapping library and information science 总被引:3,自引:1,他引:3
Frizo Janssens Jacqueline Leta Wolfgang Glnzel Bart De Moor 《Information processing & management》2006,42(6):1614
In an earlier study by the authors, full-text analysis and traditional bibliometric methods were combined to map research papers published in the journal Scientometrics. The main objective was to develop appropriate techniques of full-text analysis and to improve the efficiency of the individual methods in the mapping of science. The number of papers was, however, rather limited. In the present study, we extend the quantitative linguistic part of the previous studies to a set of five journals representing the field of Library and Information Science (LIS). Almost 1000 articles and notes published in the period 2002–2004 have been selected for this exercise. The optimum solution for clustering LIS is found for six clusters. The combination of different mapping techniques, applied to the full text of scientific publications, results in a characteristic tripod pattern. Besides two clusters in bibliometrics, one cluster in information retrieval and one containing general issues, webometrics and patent studies are identified as small but emerging clusters within LIS. The study is concluded with the analysis of cluster representations by the selected journals. 相似文献
82.
Prof. Dr. Wolfgang Seitter 《Zeitschrift für Erziehungswissenschaft》2010,13(3):393-404
This contribution focuses on Alfred Mann’s program of qualitative teaching and learning research within the context of debates on adult education in the 1920s looking for the “right” form of adult learning. Following some brief notes on Mann himself, we will present his programmatic considerations on researching lessons in the Volkshochschule and investigate the interpretive potential of his verbatim lesson documentation on the basis of an extract from a lesson journal. Central to Mann’s planned and partially realized program was the—at the time avant garde and little discussed—link between practiced lessons, empirical foundations and further education based on self-reflection. 相似文献
83.
The attitudes of educators of the deaf and other professionals in deaf education concerning assessment of the use of American Sign Language (ASL) and other sign systems was investigated. A questionnaire was distributed to teachers in a residential school for the deaf in California. In addition to questions regarding the availability of sign language assessment at their schools, participants responded to items concerning their motivation to use a test for sign language measurement. Of the 100 distributed surveys, 85 were completed and returned. Results showed overwhelming agreement among respondents concerning the importance of sign language assessment, along with the need for tools that appropriately measure signing skills. 相似文献
84.
Gianluca Demartini Claudiu S. Firan Tereza Iofciu Ralf Krestel Wolfgang Nejdl 《Information Retrieval》2010,13(5):534-567
Entity Retrieval (ER)—in comparison to classical search—aims at finding individual entities instead of relevant documents.
Finding a list of entities requires therefore techniques different to classical search engines. In this paper, we present
a model to describe entities more formally and how an ER system can be build on top of it. We compare different approaches
designed for finding entities in Wikipedia and report on results using standard test collections. An analysis of entity-centric
queries reveals different aspects and problems related to ER and shows limitations of current systems performing ER with Wikipedia.
It also indicates which approaches are suitable for which kinds of queries. 相似文献
85.
Kronberger N Holtz P Wagner W 《Public understanding of science (Bristol, England)》2012,21(2):174-187
Whenever a new, potentially controversial technology enters public awareness, stakeholders suggest that education and public engagement are needed to ensure public support. Both theoretical and empirical analyses suggest, however, that more information and more deliberation per se will not make people more supportive. Rather, taking into account the functions of public sense-making processes, attitude polarisation is to be expected. In a real-world experiment, this study on synthetic biology investigated the effect of information uptake and deliberation on opinion certainty and opinion valence in natural groups. The results suggest (a) that biotechnology represents an important anchor for sense-making processes of synthetic biology, (b) that real-world information uptake and deliberation make people feel more certain about their opinions, and (c) that group attitudes are likely to polarise over the course of deliberation if the issue is important to the groups. 相似文献
86.
Franzis Preckel Isabelle Schmidt Eva Stumpf Monika Motschenbacher Katharina Vogl Vsevolod Scherrer Wolfgang Schneider 《Child development》2019,90(4):1185-1201
Effects of full-time ability grouping on students’ academic self-concept (ASC) and mathematics achievement were investigated in the first 3 years of secondary school (four waves of measurement; students’ average age at first wave: 10.5 years). Students were primarily from middle and upper class families living in southern Germany. The study sample comprised 148 (60% male) students from 14 gifted classes and 148 (57% male) students from 25 regular classes (matched by propensity score matching). Data analyses involved multilevel and latent growth curve analyses. Findings revealed no evidence for contrast effects of class-average achievement or assimilation effects of class type on students’ ASC. ASC remained stable over time. Students in gifted classes showed higher achievement gains than students in regular classes. 相似文献
87.
Donsbach Wolfgang; Noelle Elisabeth; Traugott Michael W.; Worcester Robert 《Int. Journal of Public Opinion Research》2006,18(4):391-392
If the founders and editors of the International Journal ofPublic Opinion Research described the ideal spectrum of thejournals content, we would all very likely enumeratethe following five dimensions, usually in a comparative and/orinternational context: theories about the dynamics of publicopinion, methodological problems and developments, the roleof the news media in public communication, public opinion researchas a social and political problem, and public opinion data on 相似文献
88.
Zusammenfassung. Dadurch, dass Literaturnachweise und Publikationen zunehmend in elektronischer und auch vernetzter Form angeboten werden, haben Anzahl und Größe der von wissenschaftlichen Bibliotheken angebotenen Datenbanken erheblich zugenommen. In den verbreiteten Metasuchen über mehrere Datenbanken sind Suchen mit natürlichsprachlichen Suchbegriffen heute der kleinste gemeinsame Nenner. Sie führen aber wegen der bekannten Mängel des booleschen Retrievals häufig zu Treffermengen, die entweder zu speziell oder zu lang und zu unspezifisch sind. Die Technische Fakultät der Universität Bielefeld und die Universitätsbibliothek Bielefeld haben einen auf Fuzzy- Suchlogik basierenden Rechercheassistenten entwickelt, der die Suchanfragen der Benutzer in Teilsuchfragen an die externen Datenbanken zerlegt und die erhaltenen Teilsuchergebnisse in einer nach Relevanz sortierten Liste kumuliert. Es ist möglich, Suchbegriffe zu gewichten und durch Fuzzy- Aggregationsoperatoren zu verknüpfen, die auf der Benutzeroberfläche durch natürlichsprachliche Fuzzy-Quantoren wie möglichst viele, einige u.a. repräsentiert werden. Die Suchparameter werden in der intuitiv bedienbaren einfachen Suche automatisch nach heuristischen Regeln ermittelt, können in einer erweiterten Suche aber auch explizit eingestellt werden. Die Suchmöglichkeiten werden durch Suchen nach ähnlichen Dokumenten und Vorschlagslisten für weitere Suchbegriffe ergänzt. Wir beschreiben die Ausgangssituation, den theoretischen Ansatz, die Benutzeroberfläche und berichten über eine Evalution zur Benutzung und einen Vergleichstest betreffend die Effizienz der Retrievalmethodik.CR Subject Classification:
H.3.3, H.3.5Eingegangen am 3. März 2004 / Angenommen am 19. August 2004, Online publiziert am 18. Oktober 2004 相似文献
89.
90.
Nicole von der Linden Wolfgang Schneider Claudia M. Roebers 《Metacognition and Learning》2011,6(1):3-23
Two studies were conducted to investigate whether context variations were suitable to improve metacognitive judgments in children
in a complex, everyday memory task. In the first phase of each experiment, participants were shown a short event (video) and
gave judgments-of-learning (JOLs), that is, rated their certainty that they would later be able to recall specific details
correctly. In the second phase of the experiments, participants took part in a memory interview about the memory event and
gave confidence judgments (CJs), that is, rated their certainty that the provided answers to the memory questions were correct.
Study 1 specifically investigated the potential positive influence of giving a verbal summary before the JOL-interview on
metacognitive monitoring, whereas Study 2 had a closer look on the effect of intentional versus non-intentional encoding on
JOL and CJ accuracy. Results revealed no significant influence of giving a summary and hardly any effect of encoding condition
on metamemory monitoring although children from age 6 on showed adequate monitoring performance. JOL accuracy appears to be
a complex process, which is even more difficult to influence in children than in adults. 相似文献