排序方式： 共有17条查询结果，搜索用时 15 毫秒
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Ronan Van Rossem Marjolijn Vermande Beate Völker Chris Baerveldt 《British Journal of Sociology of Education》2015,36(5):669-688
Social capital is generally considered beneficial for students’ school adjustment. This paper argues that social relationships among pupils generate social capital at both the individual and the class levels, and that each has its unique effect on pupils’ performance and well-being. The sample in this study consists of 1036 children in 60 first-grade classes in 46 Dutch elementary schools. Multilevel regression results show that a substantial proportion of the variance in school adjustment can be attributed to the class level and that both individual-level and classroom-level social capital have substantial effects on school adjustment. At the individual level, the size of one’s network is more important than its structure. At the collective level, social capital also has a ‘dark side’ because it can have negative effects on adjustment, lowering the academic performance in a class. 相似文献
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Bing Bai Jason Weston David Grangier Ronan Collobert Kunihiko Sadamasa Yanjun Qi Olivier Chapelle Kilian Weinberger 《Information Retrieval》2010,13(3):291-314
In this article we present Supervised Semantic Indexing which defines a class of nonlinear (quadratic) models that are discriminatively
trained to directly map from the word content in a query-document or document-document pair to a ranking score. Like Latent
Semantic Indexing (LSI), our models take account of correlations between words (synonymy, polysemy). However, unlike LSI our
models are trained from a supervised signal directly on the ranking task of interest, which we argue is the reason for our
superior results. As the query and target texts are modeled separately, our approach is easily generalized to different retrieval
tasks, such as cross-language retrieval or online advertising placement. Dealing with models on all pairs of words features
is computationally challenging. We propose several improvements to our basic model for addressing this issue, including low
rank (but diagonal preserving) representations, correlated feature hashing and sparsification. We provide an empirical study
of all these methods on retrieval tasks based on Wikipedia documents as well as an Internet advertisement task. We obtain
state-of-the-art performance while providing realistically scalable methods. 相似文献
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Ronan G. Reilly 《Journal of Research in Reading》1985,8(1):3-19
The purpose of this paper is to highlight some important ways in which standard information-processing models of language, and specifically of reading, are deficient. It is proposed that the standard models do not provide an adequate framework for dealing with a number of central issues in reading. Their deficiencies are considered under four headings, (1) theoretical rigour, (2) the interaction of different levels of information during reading, (3) the parallel nature of much of human information processing, and (4) reading comprehension. The source of the problems is considered to be the view of information as an inert encoding and of information processing as a series of these encodings. A distinction is made between models which emphasize a flow of information and models which emphasize a flow of control. Production systems are proposed as examples of the latter type of model. Their use is seen as a qualitatively different approach to language processing which provides a solution to many of the problems inherent in the standard models. 相似文献
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The purpose of this study is to examine the effects of email modeling and scaffolding on the social writing quality of students with cognitive disabilities. Ten students from a university-affiliated lab school (mean age = 19.3; SD = 1.2) with an average of IQ of 55.30 (SD = 5.98) and 10 teacher candidates in a university teacher education programme participated in the study. The results suggest that all students with intellectual disabilities were able to holistically improve their social writing quality after exchanging emails with mature writers over a period of 15 weeks. Specifically, the students progressively showed various degrees of improvement in the areas of writing mechanics, lexical and syntactic complexity, writing cohesion, pragmatic propriety and writing motivation. However, the figurative use of language remained unaffected by the email modeling and scaffolding. Taken together, this study suggests that Internet-mediated formats, such as email, can reduce the anxiety of students with intellectual disabilities. Students feel more motivated to engage in writing and do so more actively in social media exchanges, thus improving their virtual social communication skills through writing. Teaching implications of this study are discussed. 相似文献
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Predicting introductory programming performance: A multi-institutional multivariate study 总被引：1，自引：1，他引：0
A model for predicting student performance on introductory programming modules is presented. The model uses attributes identified in a study carried out at four third-level institutions in the Republic of Ireland. Four instruments were used to collect the data and over 25 attributes were examined. A data reduction technique was applied and a logistic regression model using 10-fold stratified cross validation was developed. The model used three attributes: Leaving Certificate Mathematics result (final mathematics examination at second level), number of hours playing computer games while taking the module and programming self-esteem. Prediction success was significant with 80% of students correctly classified. The model also works well on a per-institution level. A discussion on the implications of the model is provided and future work is outlined. 相似文献
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Alain Lieury Sonia Lorant Bruno Trosseille Françoise Champault Ronan Vourc’h 《教育心理学》2016,36(9):1560-1595
Video games are a very common leisure activity among teenagers and the aim of this study is to analyse their relations with cognitive and school performances. This study is part of a broad survey, conducted on 27,000 French teenagers (14.5?years old) in middle school (9th grade). The survey contained both a questionnaire on leisure activities practised by teenagers and school/cognitive tests: Comprehension tests, Math, School Knowledge, and Reasoning. The activity frequency (‘never’ to ‘every day or almost’) is studied on five kinds of video games (i.e. action/fighting) vs. seven reading activities (i.e. crime/thriller/fantasy). Results show that there are no correlations or very slight ones between Video Games and cognitive/school tests. Reading activities have potentially important associations with cognition and especially school tests. To conclude, video games are primarily recreational activities and the cognitive stimulation they produce is very different from the one involved in specialised academic subjects 相似文献
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