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: 04. Juni 2021)
1Liu, H. ; Williams, K.: ¬The development of classes on women's studies in Library of Congress Classification (1970 - 2010).
In: http://www.iskocus.org/NASKO2017papers/NASKO2017_paper_19.pdf [NASKO 2017, June 15-16, 2017, Champaign, IL, USA].
Abstract: We surveyed the classes on women's studies in different editions in the LCC (from the 1980 to the 2010 edition) to determine what the main classes consisted of and how they changed over that period. We broke down the main subtopics on women's studies, doing a statistical analysis at the class and subclass level, and then selected several typical examples for in-depth examination. The goal was to show the relationship between the disciplinary development of women's studies and classes on this topic in the LCC. We found that studies about women historically interweaved with family and marriage, but its development should have its own avenue. We found six patterns in the revising of classes associated with women's studies: synthesis, analysis, new creation, expansion, class name change, and removal. Through the comparison and analysis of classes with the additions and revisions to LCCs, supplemented by the bibliographic records from the LC online catalog, we determined that: historic revisions of a certain class show its disciplinary development; synthesis, analysis, comparison, and deduction played important roles in revisions and reflected the discipline's self - understanding on a subject; and a threshold, in terms of number of titles (or "sub-sub topics"), can be established for the creation of a new class . We concluded that a well-systematized classification system facilitates predictions concerning new directions in a discipline. Also, revisions of classification, based on the development of a discipline, will influence that discipline's future development.
Inhalt: Beitrag bei: NASKO 2017: Visualizing Knowledge Organization: Bringing Focus to Abstract Realities. The sixth North American Symposium on Knowledge Organization (NASKO 2017), June 15-16, 2017, in Champaign, IL, USA.
2Zhang, J. ; Zhai, S. ; Liu, H. ; Stevenson, J.A.: Social network analysis on a topic-based navigation guidance system in a public health portal.
In: Journal of the Association for Information Science and Technology. 67(2016) no.5, S.1068-1088.
Abstract: We investigated a topic-based navigation guidance system in the World Health Organization portal, compared the link connection network and the semantic connection network derived from the guidance system, analyzed the characteristics of the 2 networks from the perspective of the node centrality (in_closeness, out_closeness, betweenness, in_degree, and out_degree), and provided the suggestions to optimize and enhance the topic-based navigation guidance system. A mixed research method that combines the social network analysis method, clustering analysis method, and inferential analysis methods was used. The clustering analysis results of the link connection network were quite different from those of the semantic connection network. There were significant differences between the link connection network and the semantic network in terms of density and centrality. Inferential analysis results show that there were no strong correlations between the centrality of a node and its topic information characteristics. Suggestions for enhancing the navigation guidance system are discussed in detail. Future research directions, such as application of the same research method presented in this study to other similar public health portals, are also included.
Inhalt: Vgl.: http://onlinelibrary.wiley.com/doi/10.1002/asi.23468/abstract.
Themenfeld: Information Gateway
3Yu, L. ; Zhou, W. ; Yu, B. ; Liu, H.: Towards a comprehensive measurement of the information rich and poor : based on the conceptualization of individuals as information agents.
In: Journal of documentation. 72(2016) no.4, S.614-635.
Abstract: Purpose - Following the assumption that studies of information inequality need to be based on precise discrimination between society's information rich and poor and against the context that a mechanism for such discrimination is still lacking, the purpose of this paper is to explore the possibility of establishing a holistic informational measurement. Design/methodology/approach - It does so by developing a measurement based on the conceptualization of the individual as an information agent and his/her information world as his/her characterization. The development procedure consists of four steps: operationalization of the theoretical constructs and the initial drafting of the questionnaire instrument; revisions of the questionnaire based on pilot tests with small groups of people; weighing of the questionnaire items for the purpose of calculating index-type variable scores; formal test of validity and reliability. Findings - The resulting measurement consists of eight variables corresponding to eight theoretical constructs of an individual's information world, each being measured by a group of questionnaire-based items which, in turn, generate an index-type score as the variable's value. Validity and reliability tests show that the measurement is, on the whole, able to distinguish the information poor from the information rich and to measure individuals consistently. Originality/value - The study demonstrates that it is possible to distinguish the information rich and poor by informational measurement in the same way as to distinguish economic groups by income, ethnic groups by race and intelligence groups by IQ; and that such a measurement has arguably multifaceted value for information inequality research.
Inhalt: Vgl.: http://www.emeraldinsight.com/doi/abs/10.1108/JDOC-03-2015-0032.
5Wu, J.-C.J. ; Liu, H.-P.: Technological innovation assessment of business-to business electronic marketplaces.
In: Journal of the American Society for Information Science and Technology. 57(2006) no.8, S.1093-1104.
Abstract: Business opportunities created by the Internet economy and new business methods have triggered the development of the electronic or e-marketplace, and vice versa. To generate competitive new products/services, Internet firms need to have access to detailed technological innovations to compete. Despite the wealth of literature on e-marketplaces, research on patent analyses in e-marketplaces is scarce. The patent is a crucial indicator of the technological competitiveness of a company or a nation. This study provides a preliminary step in depicting a holistic picture of technological innovations associated with e-marketplace patents. This study analyzes patents issued during the period of 1990-2002 from major databases; hence, it provides the first empirical study on e-marketplaces and related innovations holistically. A comprehensive set of statistical patent analyses and a discussion on e-marketplaces' technology by means of a patent map analysis are presented.
6He, X. ; Cai, D. ; Liu, H. ; Ma, W.Y.: Locality preserving indexing for document representation.
In: SIGIR'04: Proceedings of the 27th Annual International ACM-SIGIR Conference an Research and Development in Information Retrieval. Ed.: K. Järvelin, u.a. New York, NY : ACM Press, 2004. S.96-103.
Abstract: Locality preserving indexing as replacement for Latent semantic indexing
7Liu, H.-M.C.: Selection and comparison of WWW search tools.
In: Journal of information; communication; and library science. 2(1996) no.4, S.41-63.
Abstract: WWW search engines or surfing tools provide users with catalogues or indexes on the Internet and different ways of searching these catalogues or indexes. There is as yet no standard operation for search tools so that users have to understand the way each one works to use them effectively. Describes, compares and evaluates some of these tools including Infoseek, Lycos, OpenText, WebCrawler, Yahoo!, AltaVista, Inktomi, Excite, Magellan, GAIS, and YAM
Anmerkung: In Chinesisch
Objekt: Infoseek ; Lycos ; OpenText ; WebCrawler ; Yahoo ; AltaVista ; Inktomi ; Excite ; Magellan ; GAIS