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91.
Researchers have shown that young children solve mapping tasks in small spaces, but have rarely tested children's performance in large, unfamiliar environments. In the current research, children (9–10 years; N = 40) explored an unfamiliar campus and marked flags' locations on a map. As hypothesized, better performance was predicted by higher spatial‐test scores, greater spontaneous use of map–space coordinating strategies, and participant sex (favoring boys). Data supported some but not all hypotheses about the roles of specific spatial skills for mapping performance. Data patterns were similar on a computer mapping task that displayed environmental‐scale videos of walks through a park. Patterns of children's mapping errors suggested both idiosyncratic and common mapping strategies that should be addressed in future research and educational interventions.  相似文献   
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There have been ample suggestions in the literature that terms added to documents from Flickr and Wikipedia can complement traditional methods of indexing and controlled vocabularies. At the same time, adding new metadata to existing metadata objects may not always add value to those objects. The potential added-value of using user-contributed (“social”) terms from Flickr and the English Wikipedia in image indexing is compared with using two expert-created controlled vocabularies—the Thesaurus for Graphic Materials and the Library of Congress Subject Headings—without those social terms. Experiments confirmed that the social terms did add value, relative to terms from the controlled vocabularies. The median rating for the usefulness of social terms was significantly higher than the baseline rating, but was lower than the ratings for the terms from the Thesaurus for Graphic Materials and the Library of Congress Subject Headings. Furthermore, complementing the controlled vocabulary terms with social terms more than doubled the average coverage of participants' terms for a photograph. The relationships between user demographics and users' perceptions of the value of terms were also investigated, as well as the relationships between user demographics and indexing quality, as measured by the number of terms participants assigned to a photograph. Participants with more tagging and indexing experience assigned a greater number of tags than did other participants.  相似文献   
94.
Although knowledge codification makes it possible to exchange and disseminate knowledge throughout the organization and reduce access time, enhancing the quality of engagements and relationships with clients remains problematic. We propose a model for knowledge codification built on the concepts of the service's time value and cognitive value, assessed with the aid of integrative Information Technology (network of knowledge bases) and interactive Information Technology (shared workspaces). This model, applied to a case study concerning an audit and consulting firm that has embarked on a knowledge codification strategy, shows a significant improvement in the service's time value and a significant partial improvement in the service's cognitive value.  相似文献   
95.
This paper sets out the findings and recommendations of a task force which was set up by the European Commission which investigated the “Educational Multimedia”. It illustrates some of the strategic planning which has taken place across EU member states to co‐ordinate work on new education technologies to enhance teaching and learning.  相似文献   
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