基于个人辅助Agent的E—Learning教学平台研究     

陈可佳  BARTHES  Jean．Paul  TRIGANO  Philippe 《时代教育》2010,(6):94-95,99

在人工智能领域,辅助agent是一种能够帮助用户解决工作环境中特定任务的认知agent.本文将个人辅助agent应用于e-karning环境中,提出了一种具有记忆能力的辅助agent模型--MemoPELA,目的在于帮助学生和教师进行更好的教学活动.  相似文献   

University decision making and prestige: An empirical study     

Philippe Cyrenne  Hugh Grant 《Economics of Education Review》2009

In this paper, we examine the factors that influence the reputation or prestige of universities. We first develop a model of university behaviour which indicates how the decisions made by university officials would be chosen in order to maximize their respective reputations. In doing so, we assume that reputation is enhanced by the quality of students produced, the caliber of research and the service provided to the community in terms of the provision of publicly funded education services. We argue that the relative weights placed on these intermediate outputs may vary by university type as well as the means of producing them. Using the results of the reputational survey – a ranking of the institution in terms of reputation – conducted as part of the Canadian magazine Maclean’s overall ranking exercise, we then estimate an Error Correction—Ordered Probit Model of the rankings of Canadian universities to determine the factors that influence the change in reputation or “prestige” of the university as viewed by the external community. We find evidence that the change in reputation of a university is based on what might be considered the appropriate “signals” that one might use in estimating the respective quality of the institution given the respective differences in mission.  相似文献   

The origin of syngenite in black crusts on the limestone monument King's Gate (Belgrade Fortress,Serbia) – the role of agriculture fertiliser     

Vesna Matović  Suzana Erić  Aleksandar Kremenović  Philippe Colomban  Danica Srećković-Batoćanin  Nenad Matović 《Journal of Cultural Heritage》2012,13(2):175-186

Black crusts formed on limestone built into the King's Gate represent the most important process in stone deterioration that is occurring in this part of the monumental complex of the Belgrade Fortress (Serbia). Of special importance is the association of salts (namely gypsum and syngenite). Syngenite is a common secondary deposit on granite monuments and on medieval stained glass (i.e., on K-containing materials). However, its appearance over calcareous substrates is not apparent, particularly in cases where cement mortar was not used for bounding. The origins of the potassium and sulphate ions required for syngenite formation are related to meteoritic water, which penetrates the soil above the arch of King's Gate. Water dissolves some soil components and becomes enriched with various ions before coming into contact with the limestone blocks. Enriched water contains two times more K⁺ and SO₄^2? ions than pristine meteoritic water does. The source of the required ions is potassium-sulphate that is present in agricultural fertilisers that are used above the monument. The proposed mechanism for syngenite formation was additionally supported with laboratory experiment. The results of X-ray diffractometry and SEM-EDS analyses of limestone treated with potassium-sulphate solution and sulphuric acid suggest the possibility that the syngenite was formed over calcite:CaCO₃ + K₂SO₄ + H₂SO₄ → K₂Ca(SO₄)₂ H₂O + CO₂↑However, the complex mechanisms of gypsum and syngenite formation under natural conditions (variable concentration of potassium and sulphate ions, intermediates phases, temperature changes, humidity, the amount of disposable water etc.) do not exclude the possibility of syngenite formation over gypsum.  相似文献   

Investigating the theoretical structure of the DAS‐II core battery at school age using Bayesian structural equation modeling          下载免费PDF全文

Stefan C. Dombrowski  Philippe Golay  Ryan J. McGill  Gary L. Canivez 《Psychology in the schools》2018,55(2):190-207

Bayesian structural equation modeling (BSEM) was used to investigate the latent structure of the Differential Ability Scales—Second Edition core battery using the standardization sample normative data for ages 7–17. Results revealed plausibility of a three‐factor model, consistent with publisher theory, expressed as either a higher‐order (HO) or a bifactor (BF) model. The results also revealed an alternative structure with the best model fit, a two‐factor BF model with Matrices (MA) and Sequential and Quantitative Reasoning (SQ) loading on g only with no respective group factor loading. This was only the second study to use BSEM to investigate the structure of a commercial ability test and the first to use a large normative sample and the specification of both approximate zero cross‐loadings and correlated residual terms. It is believed that the results produced from the current study will advance the field's understanding of not only the factor structure of the DAS‐II core battery but also the potential utility of BSEM in psychometric investigations of intelligence test structures.  相似文献   

Les Enjeux de la Formation des Maitres Aujourd'hui en France     

Philippe Meirieu 《欧洲师范教育杂志》1993,16(1):5-11

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Retention of prose following testing with different types of tests     

Philippe C. Duchastel 《Contemporary educational psychology》1981,6(3):217-226

Taking a test on a passage one has just studied is known to enhance later retention of the passing contents. This study examined the effects of three types of initial test on later retention: a short-answer test, a multiple-choice test, and a full free-recall test. Questions on the first two of these tests covered only half of the passage contents. Later retention was compared for both initially tested content and un-tested content with that of a control group not initially tested on the passage at all. The subjects were 57 secondary school students who studied a brief history text before taking one of the initial tests. All were given retention tests 2 weeks later. The classical testing effect (enhanced retention due to initial testing) was shown to be influenced by the type of initial test used. Thus, a testing effect was evident in the case of the initial short-answer test, but not in the case of either of the other two tests. A depth-of-processing view is advanced in interpreting this finding. The testing effect was found not to generalize to untested content and in one condition (the initial multiple-choice test), retention of untested content was depressed.  相似文献   

Hybrid query expansion model for text and microblog information retrieval     

Meriem Amina Zingla  Chiraz Latiri  Philippe Mulhem  Catherine Berrut  Yahya Slimani 《Information Retrieval》2018,21(4):337-367

Query expansion (QE) is an important process in information retrieval applications that improves the user query and helps in retrieving relevant results. In this paper, we introduce a hybrid query expansion model (HQE) that investigates how external resources can be combined to association rules mining and used to enhance expansion terms generation and selection. The HQE model can be processed in different configurations, starting from methods based on association rules and combining it with external knowledge. The HQE model handles the two main phases of a QE process, namely: the candidate terms generation phase and the selection phase. We propose for the first phase, statistical, semantic and conceptual methods to generate new related terms for a given query. For the second phase, we introduce a similarity measure, ESAC, based on the Explicit Semantic Analysis that computes the relatedness between a query and the set of candidate terms. The performance of the proposed HQE model is evaluated within two experimental validations. The first one addresses the tweet search task proposed by TREC Microblog Track 2011 and an ad-hoc IR task related to the hard topics of the TREC Robust 2004. The second experimental validation concerns the tweet contextualization task organized by INEX 2014. Global results highlighted the effectiveness of our HQE model and of association rules mining for QE combined with external resources.  相似文献   

L'inférence figurale: Un pas de raisonnement discursivo-graphique   总被引：1，自引：0，他引：1  

Philippe R. Richard 《Educational Studies in Mathematics》2004,57(2):229-263

This article aims at legitimating the use of the graphic registers in the written expression of mathematical reasoning. More than the defence of this legitimacy, the article shows also the risks of its use: the problems of communication which it causes as well as the difficulties, for the teachers, to evaluate the reasoning of the pupils when they integrate these registers into their solutions, and for the pupils, to understand the mathematical texts which use these registers in their discursive expansions differently than optional illustration. With the concept of graphic expansion and figural inference, the article claims to supplement the inferences in Raymond Duval's discursive plans whilst respecting the reasoning functional definition. Having considered the cognitive and semiotic aspects in the definition of figure, the article shows the use of drawings in the reasoning structure of a pupil at secondary level. Figural inference born from this study is examined then defined in terms of function, structure and quality. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   

Representing the Quantum Object Through Fiction in Teaching     

Jean-Loup Héraud  Philippe Lautesse  Fabrice Ferlin  Hugues Chabot 《Science & Education》2017,26(3-4):299-322

Our work extends a previous study of epistemological presuppositions in teaching quantum physics in upper scientific secondary school in France. Here, the problematic reference of quantum theory’s concepts is treated at the ontological level (the counterintuitive nature of quantum objects). We consider the approach of using narratives describing possible alternative worlds to address the issue. These possible worlds are based on the counterfactual logic developed in the work of D. Lewis. We will show that the narratives written by G. Gamow describe such possible worlds. Some parts of these narratives are found in textbooks in France. These worlds are governed by laws similar to but importantly different from those in our real world. They allow us to materialize properties inaccessible to everyday experience. In this sense, these fiction stories make ontological propositions concerning the nature and structure of the fundamental elements of our physical universe.  相似文献   

Cepiah: a method for the design and evaluation of pedagogical hypermedia     

Philippe C. Trigano  Ecaterina Giacomini‐pǍcurar 《Higher Education in Europe》2004,29(1):115-131

CEPIAH is a method and a proposal for a Web‐based system to be used to assist teachers in designing multimedia documents and in evaluating their prototypes. The proposed tool integrates two modules: one for the Evaluation of Multimedia Pedagogical and Interactive software (EMPI), and the other, a method for designing pedagogical hypermedia (SP/UL/FC). The two modules are presented along with applications of distance teaching (and distance learning) and with comments about the first results of this experiment. A short presentation of a third module serves as a conclusion.  相似文献