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请大家看下面一个句子: 1 To reason means to reach a conclusion bysystematically collecting data and thinking through aproblem or situation.(Text C.Unit 3.Book 3,21st CenturyCollege English) 在这一句子中,细心的同学可能会有这样一个问题:"mean to do"通常指"想要做某事"如: 2 I am sorry I didn't mean to be rude to you.很抱歉, 我没想要冒犯你。 3 I meant to go to the exhibition but I missed thetime.我想去看展览但错过了时间。 可是1句中means to reach译为"想要达到……"显 相似文献
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《课堂内外(高中版)》2009,(2)
由于应试教育的缺陷,同学们学习英语的大部分时间都被花费到了语法背诵、答题技巧总结上,而对于一些原汁原味的英语,同学们可能接触得很少。为此,我们为大家准备了一道精美的阅读大餐,这里有英文诗歌、英语短文以及寓言等。还等什么,快来享用吧! 相似文献
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The purpose of this paper is two fold: first, to tease out the meaning inherent in the correlativity of the question and answer process and second, to suggest a philosophical answer to the question “What does it mean to question?” in the context of teacher education. To that end, we want to claim that R.G. Collingwood’s “Logic of Question and Answer” is a valuable tool in filling the gap in scholarship concerning the art of questioning. While research into the activity of teaching often emphasizes the role and effectiveness of questioning, these studies have largely focussed on the strategies and results of the practice of questioning. We argue that they place too little emphasis on making sense of the process itself and that more time should be spent on the Logic of Question and Answer. To accomplish our goal, in Collingwoodian form, we will contextualize an example of how the understanding of the question and answer complex informs the practice of teacher education in the specific area of the Social Studies Methods Course. 相似文献
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LI Ji-liang FANG Xiang-zhong HOU Jun 《浙江大学学报(A卷英文版)》2007,8(4):620-624
In this paper, we propose a sparse overcomplete image approximation method based on the ideas of overcomplete log-Gabor wavelet, mean shift and energy concentration. The proposed approximation method selects the necessary wavelet coefficients with a mean shift based algorithm, and concentrates energy on the selected coefficients. It can sparsely approximate the original image, and converges faster than the existing local competition based method. Then, we propose a new compression scheme based on the above approximation method. The scheme has compression performance similar to JPEG 2000. The images decoded with the proposed compression scheme appear more pleasant to the human eyes than those with JPEG 2000. 相似文献
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Mean shift,an iterative procedure that shifts each data point to the average of data points in its neighborhood,has been applied to object tracker.However,the traditional mean shift tracker by isotropic kernel often loses the object with the changing object structure in video sequences,especially when the object structure varies fast.This paper proposes a non-rigid object tracker by anisotropic kernel mean shift in which the shape,scale,and orientation of the kernels adapt to the changing object structure.The experimental results show that the new tracker is self-adaptive and approximately twice faster than the traditional tracker,which ensures the robustness and real time of tracking. 相似文献
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基于背景减的Mean shift目标跟踪算法 总被引：1，自引：0，他引：1
江绍明 《内江师范学院学报》2010,25(12):45-48
为了解决初始窗口离跟踪目标较远或受干扰时,容易跟踪失败的问题,提出一种基于背景差的Mean shift跟踪模型的算法.采用背景差提取当前帧运动目标,并在当前帧运动目标位置附近进行Mean shift迭代,以巴氏系数判断当前目标和历史目标的匹配程度,根据匹配结果决定当前帧目标为跟踪目标或新增目标.实验分析,该算法可实现快速、有效目标跟踪. 相似文献
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于小东 《中学生英语读写(高考版)》2003,(9)
The Three Gorges Dam project has entered a very important stage with the beginning of the filling up of the Three Gorges Reservoir. Started almost ten years ago, the great project is turning a century old dream of hydropower generation into reality. The following is some background information about the largest water project in the world. 相似文献
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A multidimensional scaling (MDS) model is proposed for 2-way 1-mode asymmetric dissimilarity data, to estimate the unknown symmetric subjacent dissimilarity matrix while the objects are represented in a low-dimensional space. In the context of least squares MDS allowing transformations, and considering both triangular parts of the asymmetric dissimilarity matrix as effects of the unobserved symmetric dissimilarities, an alternating estimation procedure is proposed in which the unknown symmetric dissimilarity matrix is estimated in a covariance structure framework. Real and artificial data are analyzed to illustrate the proposed procedure. 相似文献
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NAOMI HODGSON 《Journal of Philosophy of Education》2010,44(1):109-123
Winner of the Philosophy of Education Society of Great Britain Student Essay Competition 2009 1 1. The Philosophy of Education Society of Great Britain Student Essay Competition takes place each year. The winner receives a prize and is offered free attendance at the subsequent Annual Conference of the Society, held at New College Oxford. For details see: http://www.philosophy‐of‐education.org/students/default.asp .
The competition question ‘What Does It Mean To Be An Educated Person?’ is associated with a powerful and influential line of thought in the philosophy of R. S. Peters. It is a question that needs always to be asked again. I respond by asking what it means, now, to be an educated person—that is, how the value of being an educated person is currently understood, and, further, how it might be understood differently. The starting point of this paper then is not exactly the question of how we should best conceive of education, or of the educated person, in terms, for example, of initiation or of moral development. Instead I am concerned with who the supposedly educated person is today, according to the particular discourses and practices to which we are subject. I begin, then, by outlining the notion of the entrepreneurial self from the perspective of governmentality, with particular reference to questions of economy and the way in which the economic imperative is present in current policy. I then reconsider the idea of the educated person with reference to notions of economy and visibility as these relate to ideas of education and the self in Plato's The Republic. Discussion of readings of The Republic and of other texts of Plato by Stanley Cavell and Michel Foucault indicates how prevailing constructions of knowledge, practice, and subjectivity might be resisted. The question of what it means to be an educated person is thereby released from a particular mode of accounting for the self. 相似文献
The competition question ‘What Does It Mean To Be An Educated Person?’ is associated with a powerful and influential line of thought in the philosophy of R. S. Peters. It is a question that needs always to be asked again. I respond by asking what it means, now, to be an educated person—that is, how the value of being an educated person is currently understood, and, further, how it might be understood differently. The starting point of this paper then is not exactly the question of how we should best conceive of education, or of the educated person, in terms, for example, of initiation or of moral development. Instead I am concerned with who the supposedly educated person is today, according to the particular discourses and practices to which we are subject. I begin, then, by outlining the notion of the entrepreneurial self from the perspective of governmentality, with particular reference to questions of economy and the way in which the economic imperative is present in current policy. I then reconsider the idea of the educated person with reference to notions of economy and visibility as these relate to ideas of education and the self in Plato's The Republic. Discussion of readings of The Republic and of other texts of Plato by Stanley Cavell and Michel Foucault indicates how prevailing constructions of knowledge, practice, and subjectivity might be resisted. The question of what it means to be an educated person is thereby released from a particular mode of accounting for the self. 相似文献
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针对Geoeye,QuickBird等高空间分辨率遥感影像变化检测精度不高的问题,本文研究了面向对象的分类后比较的变化检测方法。该方法是先利用均值平移法进行图像分割,再以分割对象为基本单元,采用支持向量杌分类器进行分类,最后识别变化区域。该方法充分考虑了影像中地物的光谱、几何、上下文特征,以及目标间的拓扑关系,以弥补基于像素的变化检测方法的不足。最后,用QuickBird多时相影像作为测试数据,验证了本方法能有效提高高分辨率遥感影像变化检测的精度,且有利于GIS数据更新。 相似文献
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HAN Yan-fang SHI Peng-fei 《浙江大学学报(A卷英文版)》2006,7(6):969-975
INTRODUCTION Visual inspection plays a vital role in assuring the quality of industrial products. Texture surface detection aims at detecting defects such as cracks, stains, broken points, etc. on texture surfaces. Due to the repetitive changes of texture gray values and structures, traditional detection methods based on intensity or edge detection are invalid, which makes texture surface detection one of the most intriguing problems during the past decades. Generally, most of previous a… 相似文献
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This study examined the performance of the weighted root mean square residual (WRMR) through a simulation study using confirmatory factor analysis with ordinal data. Values and cut scores for the WRMR were examined, along with a comparison of its performance relative to commonly cited fit indexes. The findings showed that WRMR illustrated worse fit when sample size increased or model misspecification increased. Lower (i.e., better) values of WRMR were observed when nonnormal data were present, there were lower loadings, and when few categories were analyzed. WRMR generally illustrated expected patterns of relations to other well-known fit indexes. In general, a cutoff value of 1.0 appeared to work adequately under the tested conditions and the WRMR values of “good fit” were generally in agreement with other indexes. Users are cautioned that when the fitted model is misspeficifed, the index might provide misleading results under situations where extremely large sample sizes are used. 相似文献
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Measuring gifted and talented (GT) students’ perceptions of their GT label might seem to be a relatively straightforward affair. Most of this research uses survey methods that ask GT students to complete Likert scale or open-ended response questionnaires about their perceptions of the label and then presents results in clear and quantifiable terms, such as “X % of students hold positive perceptions of the GT label.” However, our qualitative study of GT students in two middle school social studies classrooms presents findings that not only trouble, but prompt questions about simple proclamations regarding GT students’ perceptions of the GT label. What we found was that given the opportunity to share their thoughts at length, this group of GT students expressed a range of often contradictory perceptions about their GT label. Students expressed multiple interpretations and perceptions of the GT label, as well as both embraced the label and rejected the label. 相似文献
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One of the most controversial debate topics in current College English teaching is whether EGP(English for General Pur?poses)should be replaced by ESP(English for Specific Purposes).The latest College English Curriculum issued by MOE(Ministry of Education)does not reflect the trend of developing College English Teaching by focusing on ESP,but rather on improving gener?al English course books.However,the first local College English Curriculum published in 2012 in Shanghai focuses on developing ESP and English for academic purpose as its teaching objectives.This paper analyzes different definitions of ESP in China’s educa?tion setting,compares different views on handling the relationship between EGP and ESP in China’s College English Reform,and explores how to apply an appropriate notion of EGP to College English teaching in China. 相似文献
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This longitudinal case study investigated how one School of Education (SOE), situated in an urban, commuter, public university, responded to the New York State mandate to require the edTPA for initial teacher certification. In order to engage faculty in the work of program redesign, SOE administrators employed a covert leadership approach. Based on survey and focus-group data collected across 3 years, the authors draw conclusions about how professional development that fostered communities of practice helped to shift faculty from self to program/candidate concerns. 相似文献
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James McIntosh 《Scandinavian Journal of Educational Research》2014,58(4):435-452
Latent class Poisson count models are used to analyse a sample of Danish test score results from a cohort of individuals born in 1954–1955, tested in 1968, and followed until 2011. The procedure takes account of unobservable effects as well as excessive zeros in the data. We show that the test scores measure manifest or measured ability as it has evolved over the life of the respondent and is, thus, more a product of the socioeconomic status of the parents and the human capital formation process than some latent or fundamental measure of pure cognitive ability. We find that variables which are not closely associated with traditional notions of intelligence explain a significant proportion of the variation in test scores. This adds to the complexity of interpreting test scores and suggests that school culture and possible incentive problems make it more difficult to understand what the tests measure. 相似文献