Diese Datenbank enthält über 40.000 Dokumente zu Themen aus den Bereichen Formalerschließung – Inhaltserschließung – Information Retrieval.
© 2015 W. Gödert, TH Köln, Institut für Informationswissenschaft / Powered by litecat, BIS Oldenburg (Stand: 15. Juni 2019)
1Lee, S. ; Ha, T. ; Lee, D. ; Kim, J.H.: Understanding the majority opinion formation process in online environments : an exploratory approach to Facebook.
In: Information processing and management. 54(2018) no.6, S.1115-1128.
Abstract: Majority opinions are often observed in the process of social interaction in online communities, but few studies have addressed this issue with empirical data. To identify an appropriate theoretical lens for explaining majority opinions in online environments, this study investigates the skewness statistic, which indicates how many "Likes" are skewed to major comments on a Facebook post; 3489 posts are gathered from the New York Times Facebook page for 100 days. Results show that time is not an influential factor for skewness increase, but the number of comments has a logarithmic relation to skewness increase. Regression models and Chow tests show that this relationship differs depending on topic contents, but majority opinions are significant in overall. These results suggest that the bandwagon effect due to social affordance can be a suitable mechanism for explaining majority opinion formation in an online environment and that majority opinions in online communities can be misperceived due to overestimation.
Inhalt: Vgl.: https://doi.org/10.1016/j.ipm.2018.08.002.
2Lee, S. ; Jacob, E.K.: ¬An integrated approach to metadata interoperability : construction of a conceptual structure between MARC and FRBR.
In: Library resources and technical services. 55(2011) no.1, S.17-32.
Abstract: Machine-Readable Cataloging (MARC) is currently the most broadly used bibliographic standard for encoding and exchanging bibliographic data. However, MARC may not fully support representation of the dynamic nature and semantics of digital resources because of its rigid and single-layered linear structure. The Functional Requirements for Bibliographic Records (FRBR) model, which is designed to overcome the problems of MARC, does not provide sufficient data elements and adopts a predetermined hierarchy. A flexible structure for bibliographic data with detailed data elements is needed. Integrating MARC format with the hierarchical structure of FRBR is one approach to meet this need. The purpose of this research is to propose an approach that can facilitate interoperability between MARC and FRBR by providing a conceptual structure that can function as a mediator between MARC data elements and FRBR attributes.
Themenfeld: Datenformate ; Formalerschließung
Objekt: MARC ; FRBR
3Kang, I.-S. ; Na, S.-H. ; Lee, S. ; Jung, H. ; Kim, P. ; Sung, W.-K. ; Lee, J.-H.: On co-authorship for author disambiguation.
In: Information processing and management. 45(2009) no.1, S.84-97.
Abstract: Author name disambiguation deals with clustering the same-name authors into different individuals. To attack the problem, many studies have employed a variety of disambiguation features such as coauthors, titles of papers/publications, topics of articles, emails/affiliations, etc. Among these, co-authorship is the most easily accessible and influential, since inter-person acquaintances represented by co-authorship could discriminate the identities of authors more clearly than other features. This study attempts to explore the net effects of co-authorship on author clustering in bibliographic data. First, to handle the shortage of explicit coauthors listed in known citations, a web-assisted technique of acquiring implicit coauthors of the target author to be disambiguated is proposed. Then, a coauthor disambiguation hypothesis that the identity of an author can be determined by his/her coauthors is examined and confirmed through a variety of author disambiguation experiments.
4Jeong, S. ; Lee, S. ; Kim, H.-G.: Are you an invited speaker? : a bibliometric analysis of elite groups for scholarly events in bioinformatics.
In: Journal of the American Society for Information Science and Technology. 60(2009) no.6, S.1118-1131.
Abstract: Participating in scholarly events (e.g., conferences, workshops, etc.) as an elite-group member such as an organizing committee chair or member, program committee chair or member, session chair, invited speaker, or award winner is beneficial to a researcher's career development. The objective of this study is to investigate whether elite-group membership for scholarly events is representative of scholars' prominence, and which elite group is the most prestigious. We collected data about 15 global (excluding regional) bioinformatics scholarly events held in 2007. We sampled (via stratified random sampling) participants from elite groups in each event. Then, bibliometric indicators (total citations and h index) of seven elite groups and a non-elite group, consisting of authors who submitted at least one paper to an event but were not included in any elite group, were observed using the Scopus Citation Tracker. The Kruskal-Wallis test was performed to examine the differences among the eight groups. Multiple comparison tests (Dwass, Steel, Critchlow-Fligner) were conducted as follow-up procedures. The experimental results reveal that scholars in an elite group have better performance in bibliometric indicators than do others. Among the elite groups, the invited speaker group has statistically significantly the best performance while the other elite-group types are not significantly distinguishable. From this analysis, we confirm that elite-group membership in scholarly events, at least in the field of bioinformatics, can be utilized as an alternative marker for a scholar's prominence, with invited speaker being the most important prominence indicator among the elite groups.
5Lee, S.-S. ; Theng, Y.-L. ; Goh, D.H.-L.: Creative information seeking : part II: empirical verification.
In: Aslib proceedings. 59(2007) no.3, S.205-221.
Abstract: Purpose - This is part II of on-going research, the purpose being to establish a creative information-seeking model. Design/methodology/approach - Two studies were conducted to examine the subjects' creative information seeking behaviours and the extent to which they exhibited the proposed stages in creative information seeking when accomplishing a directed and an open-ended information-seeking task respectively. Findings - Findings seemed to indicate that all the subjects underwent the proposed stages although they seemed to embrace characteristics of these stages in varying degrees. Findings also showed that if subjects performed the proposed stages more iteratively or non-sequentially, then a greater amount of creativity was needed to accomplish the information-seeking task. Originality/value - The paper offers a discussion on the relationships between creativity, complexity of tasks, and levels of expertise in domain knowledge.
6Loehrlein, A. ; Jacob, E.K. ; Lee, S. ; Yang, K.: Development of heuristics in a hybrid approach to faceted classification.
In: Knowledge organization for a global learning society: Proceedings of the 9th International ISKO Conference, 4-7 July 2006, Vienna, Austria. Hrsg.: G. Budin, C. Swertz u. K. Mitgutsch. Würzburg : Ergon Verlag, 2006. S.255-261.
(Advances in knowledge organization; vol.10)
Abstract: This paper describes work in progress to identify automated methods to complement and streamline the intellectual process in the generation of faceted schemes. It reports on the development of the word pair heuristic, the suffix heuristic, and the WordNet heuristic, and how the three heuristics integrate to produce an initial organization of terms from which a classificationist can more efficiently construct a faceted vocabulary.
Inhalt: Vgl.: http://www.ergon-verlag.de/isko_ko/tocs/0497f79b0c0b3ed06/0497f79b0c0c7c33f/index.php.
Themenfeld: Universale Facettenklassifikationen ; Wissensrepräsentation
7Hawkins, J. ; Blakeslee, S.: ¬Die Zukunft der Intelligenz : wie das Gehirn funktioniert, und was Computer davon lernen können.Dt. von Monika Niehaus.
Reinbek : Rowohlt Taschenbuch-Verlag, 2006. 315 S.
(rororo science; 62167)
Abstract: Die Neurowissenschaften haben mit neuen Experimenten und bildgebenden Verfahren in den letzten Jahren eine riesige Fülle neuer Erkenntnisse gewonnen. Doch noch immer fehlt, was der Nobelpreisträger Francis Crick bereits vor einem Vierteljahrhundert forderte: eine plausible Theorie, wie unser Gehirn funktioniert und was Intelligenz ausmacht. Genau diese Theorie liefert Jeff Hawkins. Er skizziert zudem die wesentlichen Prinzipien, denen die Rechner gehorchen müssten, um die menschliche Intelligenz wirklich zu ergänzen.
Anmerkung: Originaltitel: On intelligence
Wissenschaftsfach: Kognitionswissenschaft ; Informatik
RSWK: Hirnfunktion ; Künstliche Intelligenz ; Hirnfunktion / Neuropsychologie (BVB)
DDC: 612.82 / DDC22ger
9Lee, S.-S. ; Theng, Y.-L. ; Goh, D.H.-L.: Creative information seeking : Part I: a conceptual framework.
In: Aslib proceedings. 57(2005) no.5, S.460-475.
Abstract: Purpose - This paper proposes a conceptual framework for creative information seeking drawing upon Weisberg's argument that creativity exists in everyone, and mapping the creative process described in the holistic model of creativity to the information seeking activities identified in the behavioural model of information seeking. Design/methodology/approach - Using scenarios of information seeking behaviour, mappings between the creative process and information seeking activities were refined and six stages for creative information seeking were proposed. Scenarios were also used to provide theoretical justifications for stages in creative information seeking. Findings - Evidence gathered from the scenarios seemed to indicate that the type of information seeking task may have an impact on the extent to which an information seeker exhibits all stages in the framework. This is on-going research. Part II of this paper aims to conduct empirical studies and gather evidence to verify the framework and examine this observation in more detail. Originality/value - Proposes a framework for creative information seeking.
Inhalt: Vgl. auch unter: http://www.emeraldinsight.com/10.1108/00012530510621897.
10Kang, B.-Y. ; Lee, S.-J.: Document indexing : a concept-based approach to term weight estimation.
In: Information processing and management. 41(2005) no.5, S.1065-1080.
Abstract: Traditional index weighting approaches for information retrieval from texts depend on the term frequency based analysis of the text contents. A shortcoming of these indexing schemes, which consider only the occurrences of the terms in a document, is that they have some limitations in extracting semantically exact indexes that represent the semantic content of a document. To address this issue, we developed a new indexing formalism that considers not only the terms in a document, but also the concepts. In this approach, concept clusters are defined and a concept vector space model is proposed to represent the semantic importance degrees of lexical items and concepts within a document. Through an experiment on the TREC collection of Wall Street Journal documents, we show that the proposed method outperforms an indexing method based on term frequency (TF), especially in regard to the few highest-ranked documents. Moreover, the index term dimension was 80% lower for the proposed method than for the TF-based method, which is expected to significantly reduce the document search time in a real environment.
12Leifer, R. ; Lee, S. ; Durgee, J.: Deep structures : real information requirements determination.
In: Information and management. 27(1994), S.275-185.
Abstract: The authors argue that a class of information is missing in the traditional ways of subject analysis: 'deep structure' information consists of the values, beliefs, and unwritten rules in an organization
13Lee, S.-C.: ¬The utilization and selection of authoring software.
In: Journal of educational media and library sciences. 30(1993) no.2, S.191-200.
Abstract: Authoring software is becoming a necessary tool for developing interactive software. Describes 3 basic categories of tools educators may use to produce courseware: traditional programming languages; authoring languages, including hypertext authoring languages; and authoring systems and authoring aids. Evaluates each category in terms of flexibilty and complexity and discusses in detail the selection criteria for developing interactive multimedia programmes