The influence of the document ranking in expert search     

Craig Macdonald  Iadh Ounis 《Information processing & management》2011

The retrieval effectiveness of the underlying document search component of an expert search engine can have an important impact on the effectiveness of the generated expert search results. In this large-scale study, we perform novel experiments in the context of the document search and expert search tasks of the TREC Enterprise track, to measure the influence that the performance of the document ranking has on the ranking of candidate experts. In particular, our experiments show that while the expert search system performance is related to the relevance of the retrieved documents, surprisingly, it is not always the case that increasing document search effectiveness causes an increase in expert search performance. Moreover, we simulate document rankings designed with expert search performance in mind and, through a failure analysis, show why even a perfect document ranking may not result in a perfect ranking of candidate experts.  相似文献   

Examination of birthplace and birthdate in World Junior ice hockey players     

Bruner MW  Macdonald DJ  Pickett W  Côté J 《Journal of sports sciences》2011,29(12):1337-1344

The present study investigated birthdate (known as the Relative Age Effect; RAE) and birthplace as determinants of expertise in an international sample of elite ice hockey players. The sample included 566 World Junior (WJR) ice hockey players from four countries (Canada, n = 153; USA, n = 136; Sweden, n = 140; Finland, n = 137). Participants competed in the International Ice Hockey Federation World U20 Championship between 2001 and 2009. A series of Poisson regression models were conducted to examine the consistency of direct then interactive relationships between both birthdate and birthplace and WJR membership across the four countries (Canada, USA, Sweden, and Finland). Findings revealed a consistent RAE across the four countries for World Junior participation from 2000 to 2009. WJR players from the four countries were also less likely to be from major cities. In addition, there was no evidence in any of the four countries of an interaction between RAE and birthplace. Future research should explore the contextual and cultural factors that influence elite athlete development in smaller towns, cities and communities.  相似文献   

Controlling the flow of high-technology information from the United States to the Soviet Union: A labour of sisyphus?     

Stuart Macdonald 《Minerva》1988,24(1):39-73

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The person in the curriculum     

James B. Macdonald 《The Urban Review》1975,8(3):191-201

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Editorial     

Stuart Macdonald 《The International Journal of Art & Design Education》1982,1(1):1-2

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Editor's Page: Research Agenda for Higher Education     

Libby V. Morris 《Innovative Higher Education》2003,28(2):87-90

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Postdoctoral Teaching Fellowships: A Home in Academe?     

Libby V. Morris 《Innovative Higher Education》2005,30(4):229-231

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Gathering Requirements for Teacher Tools: Strategies for Empowering Teachers Through Co-Design     

Camillia Matuk  Libby Gerard  Jonathan Lim-Breitbart  Marcia Linn 《Journal of Science Teacher Education》2016,27(1):79-110

Technology can enhance teachers’ practice in multiple ways. It can help them better understand patterns in their students’ thinking, manage class progress at individual and group levels, and obtain evidence to inform modifications to curriculum and instruction. Such technology is most effective when it is aligned with teachers’ goals and expectations. Participatory methods, which involve teachers closely in the design process, are widely recommended for establishing accurate design requirements that address users’ needs. By collaborating with researchers, teachers can contribute their professional expertise to shape the tools of their practice, and ultimately ensure their sustained use. However, there is little guidance available for maintaining effective teacher–researcher design partnerships. We describe four strategies for engaging teachers in designing tools intended to support and enhance their practice within a web-based science learning environment: discussing physical artifacts, reacting to scenarios, customizing prototypes, and writing user stories. Using design artifacts and documents of teachers’ reflections, we illustrate how we applied these techniques over 5 years of annual professional development workshops, and examine their affordances for eliciting teachers’ ideas. We reflect on how these approaches have helped inform technology refinements and innovations. We moreover discuss the further benefits these strategies have had in encouraging teachers to reflect on their own practice and on the roles of technology in supporting it; and in allowing researchers to gain a deeper understanding of the relationship between technology, teaching, and design.  相似文献   

Reviews     

Ivan Crozier  Patricia Fara  Jon Hodge  Brendan Kitts  Robin Knight  Sverre Myhra  David Oldroyd  Elizabeth A. Wilson  Rosemary Robins  Stephen Dovers  John Forge  Harshi Gunawardena  Jenny Tannoch-Bland  Loet Leydesdorff  David Oldroyd  David Oldroyd  David Oldroyd  Nicolas Rasmussen  Greg Restall  Helaine Selin  Michael Shortland  E. E. Sleinis  Fiona Solomon  Scott McQuire  Maurice Crosland  David Farrier  Roslynn Haynes  Sverre Myhra  Colin Russell  Libby Robin  Karin Garrety  Stephen Gaukroger  Stephen Ames  Wendy Varney  Vojislav Bozickovic  Phil Dowe 《Metascience》1996,5(2):71-192

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‘I could do with a pair of wings’: perspectives on physical activity,bodies and health from young Australian children     

Doune Macdonald  Sylvia Rodger  Rebecca Abbott  Jenny Ziviani  Judy Jones 《Sport, Education and Society》2013,18(2):195-209

There is little research that reports children's perspectives on physical activity, bodies and health. This paper, drawn from a larger multi-method study on physical activity in the lives of seven- and eight-year-old Australian children, attempts to ‘give a voice’ to 13 children's views. Interviews focused on children's activity preferences and related decision making and motivations pertaining to these activities, as well as how they thought about the relationships between physical activity, health and their bodies. Data suggest some tensions surrounding the importance of fun for children alongside their awareness of ‘healthist’ discourses that require self-monitoring and improvement.  相似文献