Search (11 results, page 1 of 1)

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Content

Inhalt: Learning: Basic Processes - Introduction - Basic Information Processes - Integrating Themes - Where do Integrating Themes come From? - Theory Generation and Testing - Learning: Individual Differences - Styles of Learning - Levels of Learning - References - Education - Educational Philosophies and Learning Design - Autonomy and Mediation - Library and Information Science - Standards for Supporting Resource Discovery - Information Seeking and Autonomous Learning - Information Seeking as Conversations - ICT Developments: Resource Discovery - Tools and Techniques to Support Information Seeking and Resource Discovery - Metadata - Ontologies and the Semantic Web - Educational Metadata and Ontologies - ICT Developments: Learning Design And Teaching - Intelligent and Adaptive Tutoring Systems - Learning Environments and Interoperability - General ICT-Based Developments - Educational Opportunities Afforded by ICT Developments - Educational Informatics Systems: Individual Approaches - Metadata-Enabled Learning Resource Discovery - Adaptive Systems for Personalised Resource Discovery - Open Corpus Resource Discovery - From Supplantation to Metacognition - Educational Informatics Systems: Social Approaches - Alternative Pedagogies - Educational Informatics Systems that Learn - Community-Based Learning - Real World Learning - Theory and Practice - Educational Informatics Support for Critical Thinking and Creativity - Making Sense of Research: Generating Useful Real World Knowledge - Going Forward: Research Issues and the Future - Different Perspectives on Educational Informatics Developments - Types Of Evidence - Contingent Dependencies, and Object and Meta Languages - Reality Checking For Quality Control - Towards the Learning Web

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Abstract

Reports results of a project to develop guidelines, based on the development of a prototype system in the field of medicine, for producing computerized reference services capable of increasing the range and quality of responses to information needs. For instance, an automatic system that can be available 24 hours a day simultaneously to multiple enquirers over an intranet or the Internet. Genuine information requests from a variety of medical information settings were collected and analyzed to form a typology of needs, focusing particularly on qualitative aspects. The typology was mapped on to computerized techniques to form a system specification and developed into a prototype WWW system

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Date

17. 1.2000 13:16:22

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Date

22. 1.2017 16:45:48

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Abstract

Purpose - The purpose of this paper is to report an empirical investigation into conceptions of the "invisible web". Design/methodology/approach - This was an exploratory qualitative study based on in-depth semi-structured interviews with 15 members of academic staff from three biology-related departments at the University of Sheffield. Concepts emerged from an inductive analysis of the interview data to form a tentative model. Findings - A distinction is drawn between technical objective conceptions of the "invisible web" that commonly appear in the literature, and a cognitive subjective conception based on searchers' perceptions of search failure, and a tentative model of "cognitive invisibility" is presented. The relationship between objective and subjective conceptions, and implications for training, are discussed. Research limitations/implications - The research was qualitative and exploratory, designed to elicit sensitising concepts and to "map the territory". It thus aims to provide a tentative model that could form the basis for more systematic study. Such research could investigate the validity of the categories in different and/or larger samples, seek further to illuminate, challenge, extend or refute the model, and address issues of generalisability. Practical implications - The paper presents a conceptual model that is intended to be a useful reference point for researchers wishing to investigate user-based aspects of search failure and the invisible web. It may also be useful to trainers and those interested in developing information literacy, in that it differentiates technical objective and cognitive subjective conceptions of "invisibility, and discusses the implications for helping searchers develop more effective searching capabilities. Originality/value - The paper offers an alternative cognitive subjective view of "web invisibility" to that more commonly presented in the literature. It contributes to a still small body of empirical research into user-based aspects of the invisible web.

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Abstract

Purpose - The purpose of this paper is to report research that sought to understand the requirements of information systems designed to support people engaged in creative intellectual activity. The research aimed to provide empirical evidence based on a case study of a particular arena of creativity, namely electro-acoustic music composition. However, it also sought to identify issues that may apply more widely to other arenas of human creativity. Design/methodology/approach - The research was based on a related series of three in-depth studies of electro-acoustic music composers at work. These studies entailed the collection of qualitative data from interviews, observations and "think aloud" protocols. These data were analysed inductively to reveal concepts and relationships that formed the basis for a model of interactions between the composers and the information systems with which they were working. Findings - The paper presents a model of relationships between information system features and use, and the resulting effects in terms of the extent to which creativity was perceived by the composers to have been facilitated and inhibited. In particular, a number of tensions were identified which suggest that conventional "best practice" in the design of data-intensive information systems may be fundamentally at odds with the requirements of such systems to support important aspects of creativity. Research limitations/implications - The limitations associated with in-depth qualitative research based on small samples is acknowledged, relating in particular to its lack of ability to generalise on the basis of statistical probability. However, such an approach arguably offers the complementary strength of being particularly suited to exploratory research aimed essentially at charting new territory and identifying rich and possibly unanticipated constructs rather than testing hypotheses based on existing theory. The resultant findings, however, must remain tentative and provisional pending further systematic investigation designed to establish the extent to which they are generalisable. Practical implications - As well as identifying limitations in conventional approaches to designing data-intensive information systems, an alternative architecture is proposed which seeks better to map onto the requirements of creativity support. It is hoped that both the criticisms of conventional approaches and the proposed novel architecture may be of practical use to those engaged in the design of data-intensive creativity support systems. Originality/value - The research reported here offers a novel perspective on the design of information systems in that it identifies a tension between conventional "best practice" in system design and the requirements of important aspects of creativity support. It has the advantage of being based on the in-depth observation of real composers in action over protracted periods of time. It also proposes a novel system architecture which seeks to avoid reduce such tensions.

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Abstract

Research into information retrieval (IR) cannot yet answer the basic question of how we can design IR systems to help people search for information with optimal levels of effectiveness. In relation to human-system interaction, we have failed to develop any valid and at the same time robust user models capable of driving practical system development. If we strip away assumptions and over-optimism relating to the generalisability of what are essentially sporadic and fragmented research efforts, the great "darkness to light" ratio characterising our knowledge of human aspects of IR becomes apparent. From a more critical and pessimistic (but by no means less realistic) perspective, we are getting nowhere fast. A range of strategies is proposed to improve the situation by supporting relatively "horizontal" as well as "vertical" knowledge integration. These consist of: greater use of pluralistic research approaches; enhanced access to research data; more multidisciplinary and multi-perspective integrative reviews and conceptual mappings; and establishing a greater critical mass of published research findings sufficient to support the generation of a less sparse and fragmented evidence-based knowledge map. The potential of electronic publishing and data access for helping achieve these goals is discussed.

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Abstract

Although much previous research has considered how we read, less attention has been paid to why we read, and the influence not only of individual or text-related factors on a reader's intention to read, but also of broader societal factors. This article presents a novel, empirically-based model of fiction reading in a public library context, taking into account the characteristics differentiating the readers of individual fiction genres. It begins with a literature review of factors motivating a reading choice or habit, and of the effects of reading different fiction genres, before introducing three previous studies by the first author into readers' attitudes towards, and engagement with, fiction and selected fiction genres. The methodologies are then summarized both for the three previous studies and the present study. The authors present a combined analysis that integrates the findings of the previous studies in order to generate a new, evidence-based model for the reading of fiction genres. Incorporating both demographic and motivational aspects, this model illustrates how the broad themes of the fiction reader profile interrelate, giving them a new causal ordering. Finally, there is a discussion of the implications of this work for library and information science research and practitioner communities.

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Abstract

Purpose - The purpose of this paper is to review recent developments in educational informatics relating to the provision by information systems of pedagogical support to web-based learners, and to propose further investigation of the feasibility and potential value of web-based "conversational" information systems to complement adaptive hypermedia and information retrieval systems. Design/methodology/approach - The potential of Pask's conversation theory is considered as a potentially useful framework for the development of information systems capable of providing pedagogical support for web-based learners, complementary to that provided by existing computer-assisted learning and adaptive hypermedia systems. The potential role and application of entailment meshes are reviewed in relation to other forms of knowledge representation including classifications, semantic networks, ontologies and representations based on knowledge space theory. Findings - Concludes that conversation theory could be a useful framework to support the development of web-based "conversational" information that would complement aspects of computer-assisted learning, adaptive hypermedia and information retrieval systems. The entailment mesh knowledge representation associated with conversation theory provides the potential for providing particularly rich pedagogical support by virtue of its properties of cyclicity, consistency and connectivity, designed to support deep and enduring levels of understanding. Research limitations/implications - Although based on a considerable body of theoretical and empirical work relating to conversation theory, the paper remains speculative in that the gap is still great between, on the one hand, what has so far been achieved and, on the other, the practical realisation of its potential to enhance web-based learning. Much work remains to be done in terms of exploring the extent to which procedures developed and benefits found in relatively small-scale experimental contexts can effectively be scaled to yield enhanced support for "real world" learning-related information behaviour. Originality/value - The ideas of Pask, discussed in this paper, are capable of guiding the structuring of information according to parameters designed to facilitate deep and enduring understanding via interactive "conversational" engagement between the conceptual structures of information source authors and learners. If one can scale Pask's work to "real world" learning-related information behaviour, one can increase the range of web-based information systems and services capable of providing pedagogical support to web-based learners.

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Abstract

Purpose - This paper aims to examine our current knowledge of how searchers perceive and react to the possibility of missing potentially important information whilst searching the web is limited. The study reported here seeks to investigate such perceptions and reactions, and to explore the extent to which Simon's "bounded rationality" theory is useful in illuminating these issues. Design/methodology/approach - Totally 37 academic staff, research staff and research students in three university departments were interviewed about their web searching. The open-ended, semi-structured interviews were inductively analysed. Emergence of the concept of "good enough" searching prompted a further analysis to explore the extent to which the data could be interpreted in terms of Simon's concepts of "bounded rationality" and "satisficing". Findings - The results indicate that the risk of missing potentially important information was a matter of concern to the interviewees. Their estimations of the likely extent and importance of missed information affected decisions by individuals as to when to stop searching - decisions based on very different criteria, which map well onto Simon's concepts. On the basis of the interview data, the authors propose tentative categorizations of perceptions of the risk of missing information including "inconsequential" "tolerable" "damaging" and "disastrous" and search strategies including "perfunctory" "minimalist" "nervous" and "extensive". It is concluded that there is at least a prima facie case for bounded rationality and satisficing being considered as potentially useful concepts in our quest better to understand aspects of human information behaviour. Research limitations/implications - Although the findings are based on a relatively small sample and an exploratory qualitative analysis, it is argued that the study raises a number of interesting questions, and has implications for both the development of theory and practice in the areas of web searching and information literacy. Originality/value - The paper focuses on an aspect of web searching which has not to date been well explored. Whilst research has done much to illuminate searchers' perceptions of what they find on the web, we know relatively little of their perceptions of, and reactions to information that they fail to find. The study reported here provides some tentative models, based on empirical evidence, of these phenomena.

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Source

Journal of information science. 22(1996) no.2, S.79-92