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)
1Yu, L.: Towards structure-agency integrative theories for information access disparity: Lessons from within and beyond LIS.
In: Journal of documentation. 74(2019) no.3, S.458-477.
Abstract: Purpose Based on the assumption that information access disparity is a highly complex phenomenon demanding integrative explications that heed both structure and agency, the purpose of this paper is to outline the theoretical background against which endeavours to develop such explanations can be planned. Design/methodology/approach The study is based on a close reading of: existing explanations of information access disparity; research of other library and information science (LIS) issues that have demonstrated conscious attempts to bridge structure and agency; and cross-disciplinary integrative theories that have served as foundations for LIS research. Explanatory power of the first and applicability of the latter two are critically assessed; lessons for future research are drawn. Findings The examination shows that efforts to develop integrative theories for information access disparity are emerging but remain indistinct; integrative frameworks for other LIS phenomena exist but are developed primarily by adopting concepts from cross-disciplinary theories and are, therefore, both enabled and constrained by them. It also shows that cross-disciplinary integrative theories contribute to LIS by exporting the general integrative theorising approach and a range of specific concepts but, owing to their limitations in dealing with information-specific issues, their adequacy for explaining information access disparity cannot be assumed. Originality/value The study demonstrates that a promising way forward for developing integrative theories of information access disparity is to follow the general integrative approach, but to ground related concepts and propositions in empirical data alone, i.e., to begin the journey of integrative theorising theory-free.
Inhalt: Vgl.: https://doi.org/10.1108/JD-09-2018-0149.
2Yu, 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.
3Yu, L. ; Zhou, W.: Information inequality in contemporary Chinese urban society : the results of a cluster analysis.
In: Journal of the Association for Information Science and Technology. 67(2016) no.9, S.2246-2262.
Abstract: Having reflected on the theoretical tradition of previous information inequality research that treats society's information rich/poor as identical with its socioeconomic rich/poor, this study examines the informational structure of contemporary Chinese urban society through a cluster analysis of a sample of 3,361 urban residents measured by a holistic informational measurement developed around the concept of "an individual's information world." It finds that, first, 4 groups, instead of a binary "haves versus have-nots," best characterize Chinese urban society informationally; second, the distribution of people among these groups conforms to normal distribution, in striking contrast with the pyramid-shaped socioeconomic structure of Chinese society; third, although the demographic characteristics of these groups suggest a significant correlation between people's informational and socioeconomic statuses, the 2 are far from identical; fourth, although the 4 groups differ in all aspects investigated, they differ most notably in information assets and the range and type of materials they choose as their regular information resources; fifth, although the 4 groups vary significantly, each differs from the others in its own way. This study concludes that society's informational and socioeconomic structures are 2 related but distinctive structures, and that the informational structure is characterized by highly complicated textures of inequality.
Inhalt: Vgl.: http://onlinelibrary.wiley.com/doi/10.1002/asi.23531/full.
4Yu, L.: Back to the fundamentals again : a redefinition of information and associated LIS concepts following a deductive approach.
In: Journal of documentation. 71(2015) no.4, S.795-816.
Abstract: Purpose The purpose of this paper is to redefine information and other associated library and information science (LIS) concepts and to reformulate the mission of the library and information profession and the problem of LIS using these concepts. Design/methodology/approach his study adopts a deductive approach to conceptualization, starting from one given, a priori concept. Findings This paper develops a constellation of concepts which offer mutual clarification for each other. Having defined data by drawing on its existing denotations, it defines "information" as the combined product of data and meaning, and "document" as the combined product of information and media; it defines "knowledge" as one type of meaning and "work" as one type of information. It shows that the mission of the library and information profession is to ensure maximum discoverability and accessibility of information, and that LIS is structured into two fields correspondingly, each consisting of three tiers of knowledge: philosophical foundations, theories, and technologies. Practical implications The redefinition of basic LIS concepts may have practical implications for LIS curriculum design and for the cultivation of professional identity among LIS students in the all-encompassing I-Schools. Originality/value This study has formed a coherent conceptual framework for LIS and has clarified the hitherto rather confusing relationship between data, information, and knowledge, and the rather nebulous structure of LIS problems; it sheds some light on the source of conflicts between the subjective and objective conceptualization of information and questions the prevailing understanding of work as ideas or meanings.
Inhalt: Vgl.: http://dx.doi.org/10.1108/JD-12-2014-0171.
Wissenschaftsfach: Bibliothekswesen ; Informationswissenschaft
5Yu, L.: How poor informationally are the information poor? : evidence from an empirical study of daily and regular information practices of individuals.
In: Journal of documentation. 66(2010) no.6, S.906-933.
Abstract: Purpose - The purpose of this paper is to examine the multifaceted information disadvantages facing the so-called information poor in today's society. It has two specific objectives: to identify, from the empirical evidence of individuals' daily and regular information practices, meaningful constructs for defining information inequality; and to investigate how the "information poor" characterise on these constructs in comparison with others. Design/methodology/approach - The study developed its findings in relation to the above objectives inductively from the interview transcripts of 73 people of different social statuses and occupations regarding their daily and regular information practices. Findings - Three concepts emerged as meaningful constructs to define information inequality, hence to describe the information poor: individuals' information resource bases, information practices, and information assets. The information poor are found to be disadvantaged in all these aspects. They are first disadvantaged by limited freedom and/or opportunities in claiming society's vast and rapidly increasing information resources into their own information resource bases; then by the constraint of their information practices in developing their information resource bases and obtaining information utilities from these resources; and further more by impoverished information assets to empower themselves in normal and problematic situations. Practical implications - Understanding of the information poor as sketched above will likely demand further research into a number of issues/areas hitherto ignored by information inequality studies. Originality/value - This paper is one of the first to address empirically one of the most fundamental questions in information inequality studies; it extends library and information science understanding of the information poor hitherto dominated by the information deficiency thesis.
6Yu, L.-C. ; Wu, C.-H. ; Chang, R.-Y. ; Liu, C.-H. ; Hovy, E.H.: Annotation and verification of sense pools in OntoNotes.
In: Information processing and management. 46(2010) no.4, S.436-447.
Abstract: The paper describes the OntoNotes, a multilingual (English, Chinese and Arabic) corpus with large-scale semantic annotations, including predicate-argument structure, word senses, ontology linking, and coreference. The underlying semantic model of OntoNotes involves word senses that are grouped into so-called sense pools, i.e., sets of near-synonymous senses of words. Such information is useful for many applications, including query expansion for information retrieval (IR) systems, (near-)duplicate detection for text summarization systems, and alternative word selection for writing support systems. Although a sense pool provides a set of near-synonymous senses of words, there is still no knowledge about whether two words in a pool are interchangeable in practical use. Therefore, this paper devises an unsupervised algorithm that incorporates Google n-grams and a statistical test to determine whether a word in a pool can be substituted by other words in the same pool. The n-gram features are used to measure the degree of context mismatch for a substitution. The statistical test is then applied to determine whether the substitution is adequate based on the degree of mismatch. The proposed method is compared with a supervised method, namely Linear Discriminant Analysis (LDA). Experimental results show that the proposed unsupervised method can achieve comparable performance with the supervised method.
Themenfeld: Wissensrepräsentation ; Multilinguale Probleme
7Yu, L. ; Hong, Q. ; Gu, S. ; Wang, Y.: ¬An epistemological critique of gap theory based library assessment : the case of SERVQUAL.
In: Journal of documentation. 64(2008) no.4, S.511-551.
Abstract: Purpose - The purpose of this paper is twofold: first, to investigate the epistemological underpinning of SERVQUAL and its limitations; and second, to propose ways to enhance the utility of SERVQUAL as a library assessment tool. Design/methodology/approach - The study first conceptualises quality judgment as a knowing process and locates the epistemological stance of SERVQUAL within the general framework of epistemology demarcation; it then examines related SERVQUAL assumptions and their implications for library assessment in general and for service quality assessment in particular based on two empirical investigations: a questionnaire survey and an interview survey. The questionnaire survey applies the SERVQUAL instrument to three Chinese university libraries, with a view to examining the SERVQUAL score in light of epistemological considerations; the interview survey interviews 50 faculty users in one of the three universities with a view to illuminating the naturalistic process through which users develop their judgement of the library's service quality and through which the SERVQUAL score is formed. Findings - The study shows that the actual SERVQUAL score is distributed in a very scattered manner in all three libraries, and that it is formed through a very complex process rooted primarily in the user's personal experiences with the library, which are in turn shaped by factors from both the library world and the user's life-world. Based on these findings, this research questions a number of SERVQUAL assumptions and proposes three concepts which may help to contextualise the SERVQUAL score and enhance its utility in actual library assessment: library planning based variance of user perception, perception-dependent user expectation and library-sophistication based user differentiation. Originality/value - The research presented in the paper questions a number of SERVQUAL assumptions and proposes three concepts that may help to contextualise the SERVQUAL score and enhance its utility in actual library assessment.
10Yu, L. ; O'Brien, A.: ¬A practical typology of adult fiction borrowers based on their reading habits.
In: Journal of information science. 25(1999) no.1, S.35-49.
Abstract: Reports results of a study which applied a typological procedure, developed by Lazairsfeld from the social sciences, to a set of qualitative data on fiction reading habits for the purpose of forming a practical typology of fiction borrowers. The data was collected from a sample of 300 readers in 2 medium sized UK public libraries over a 2 month period. The procedure, using an inductive research approach, first mapped readers along 6 dimensions of reading habits which emerged from the data frequencies of borrowing, the numbers of authors currently read, the literary/recreational orientation of reading, searching approaches usually applied, sureness (confidence) in book selection and then proceeded to reduce the number of combinations formed by these dimensions, based on their relationships. A typology of 7 types of fiction borrowers was devised: readers of particularism; readers of frequent literary pluralism; readers of infrequent literary pluralism; readers of frequent recreational pluralism; readers of infrequent recreational pluralism; readers of frequent universalism; and readers of infrequent universalism
Themenfeld: Benutzerstudien ; Schöne Literatur
12Yu, L.: Geographic information systems in library reference services : development and challenge.
In: Reference librarian. 1998, no.60, S.87-110.
Abstract: Discusses the concept and function of GIS and compares the use of GIS in libraries with library map collections. Reviews GIS projects in libraries and examines GIS user services and the challenge they pose. Discusses user access to GIS and argues that simplified and varied user interfaces are important to improve user access
Anmerkung: Part of an issue devoted to electronic resources and their use in libraries, from the viewpoint of reference services, with an emphasis on the Internet and Geographic Information Systems
13Yu, L. ; O'Brien, A.: Constructing references from the book to the reader in fiction searching : an experiment on the construction of information cues from the reading context approach.
In: Information services and use. 17(1997) nos.2/3, S.187-199.
Abstract: Reports on research that aims to test the effect of information cues constructed from the reading context approach on fiction searching and selection in public libraries. Assesses problems associated with the construction of information cues for fiction searching from the pragmatic approach, literary warrant approach and user-enquiries-analysis approach
Anmerkung: Contribution to a special issue devoted to papers read at the 1996 Electronic Access to Fiction research seminar at Copenhagen, Denmark
Themenfeld: Schöne Literatur