Medical knowledge discovery systems: data abstraction and performance measurement     

Albert L?HarrisEmail author  Charlie C?Chen  William J?Perkins 《知识管理研究与实践》2004,2(2):95-102

Knowledge discovery systems can be traced back to their origin, artificial intelligence and expert systems, but use the modern technique of data mining for the knowledge discovery process. To that end, the technical community views data mining as one step in the knowledge discovery process, while the non-technical community seems to view it as encompassing all of the steps to knowledge discovery. In this exploratory study, we look at medical knowledge discovery systems (MKDSs) by first looking at three examples of expert systems to generate medical knowledge. We then expand on the use of data abstraction as a pre-processing step in the comprehensive task of medical knowledge discovery. Next, we look at how performance of a medical knowledge discovery system is measured. Finally, the conclusions point to a bright future for MKDSs, but an area that needs extensive development to reach its full potential.  相似文献   

解剖EMS公司报价的基本构成     

Charlie Barnhart 《中国科技信息》2006,(9):46-48

外包过程中如何与EMS公司讨价还价？OEM可采用什么样的措施来影响价格？如何在不损失质量和反应速度的前提下有效降低成本？我们特别邀请了Technology Forecasters公司高级咨询师Charlie Barnhart先生来解决这些在外包领域中难缠的问题.他将分三期阐述全球EMS产业定价情况及其对OEM公司的影响,详细解释制造成本的产生和价格的形成过程.本期我们将通过一家中型OEM公司与EMS公司就PCBA制造业务进行谈判的具体案例,分析EMS公司报价的基本结构以及OEM公司在价格谈判中应关注的重点.[编者按]  相似文献   

On the Very Idea of a Feminist Epistemology for Science*     

Elizabeth Potter 《Metascience》2006,15(1):1-37

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Researching and implementing a new tiered pricing model     

Charlie RAPPLE 《Learned Publishing》2011,24(1):9-13

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Do students' style preferences differ by grade level,orientation toward college,and academic major?     

Dr. Richard C. Emanuel  Dr. W. James Potter 《Research in higher education》1992,33(3):395-414

Students' preferences for learning styles as well as their preferences for communication styles of their teachers are examined to determine if those preferences are related to gender, grade level, and major in college. A total of 327 adolescents in grades eight through twelve completed questionnaires measuring their preferred learning styles (Dependent, Independent, Competitive, Collaborative, and Participative) and their preferences for teacher communicator styles (Open, Attentive, Relaxes, Precise, Impression Leaving, Dramatic, Friendly, Animated, Contentious, and Dominant). Also, 235 college students in various majors were measured. The rank ordering of preferences was generally stable across all grade levels in the adolescent sample. However, the college students exhibited several important differences in preferences from the adolescents and across majors.  相似文献   

A longitudinal evaluative study of student difficulties with engineering graphics     

Charles Potter  Errol Van Der Merwe  Wendy Kaufman  Julie Delacour 《European Journal of Engineering Education》2006,31(2):201-214

We have previously reported in this journal that spatial ability influences academic performance in engineering. We have also reported that spatial ability is trainable, and can be increased through instruction focused on using perception and mental imagery in three-dimensional representation. In this article, we present the results of a longitudinal evaluative study of student difficulties with engineering graphics at our university, involving research over a 24-year period. Prior to our intervention, the first-year engineering graphics course at our university had a failure rate of 36% for all engineering students, and failure rates of 80% for African students studying at our university. In terms of outcomes, our study indicates that changed teaching practices have been associated with increased pass rates, which currently average 88% for all students. There is clear evidence that African students no longer experience major difficulties in passing the course. This can be attributed both to changes in teaching methodology, as well as broader contextual changes occurring in South Africa over the period reviewed.

Despite evidence of increased pass rates, our data suggest that there is a continuing relationship between three-dimensional spatial perception and academic performance in engineering graphics, as well as with aggregated first-year engineering marks. For this reason, many students still require academic support. There is also evidence that female students experience difficulties with engineering graphics due to lack of previous technical experience, and use a variety of strategies to overcome their study problems. The most effective appear to be use of peers and friends, and in particular students who had previously taken the course, as mediators of the course content and materials. Those female students who have not taken technical drawing at school level, and female students who do not network with other engineering students, are those at greatest disadvantage.  相似文献   

Beginning literacy: links among teacher knowledge, teacher practice, and student learning   总被引：2，自引：0，他引：2  

McCutchen D  Abbott RD  Green LB  Beretvas SN  Cox S  Potter NS  Quiroga T  Gray AL 《Journal of learning disabilities》2002,35(1):69-86

Although the importance of phonological awareness has been discussed widely in the research literature, the concept is not well understood by many classroom teachers. In the study described here, we worked with groups of kindergarten and first-grade teachers (the experimental group) during a 2-week summer institute and throughout the school year. We shared with them research about learning disabilities and effective instruction, stressing the importance of explicit instruction in phonological and orthographic awareness. We followed the experimental group and a control group into their classrooms for a year, assessing teachers' classroom practices and their students' (n = 779) learning. The study yielded three major findings: We can deepen teachers' own knowledge of the role of phonological and orthographic information in literacy instruction; teachers can use that knowledge to change classroom practice; and changes in teacher knowledge and classroom practice can improve student learning.  相似文献   

Changing thoughts,changing practice: examining the delivery of a group CBT-based intervention in a school setting     

Caoimhe Weeks  Vivian Hill  Charlie Owen 《Educational Psychology in Practice》2017,33(1):1-15

Promoting mental health and well-being for children and young people in the UK has attracted increasing prominence in recent years and has been a focus for government strategy within health and education. Training and practice in educational psychology has increasingly focused on developing skills and expertise to provide therapeutic support within school contexts, at an early stage of need. One approach, Cognitive Behaviour Therapy (CBT), has been heralded as an effective, evidence-based intervention for anxiety. This research examines the factors influencing the outcomes of a group CBT-based intervention, run by an Educational Psychologist (EP), in a school setting. The findings suggest that influential variables included pupil identification, measures of change applied and the role of school staff. It is concluded that EPs can play a key role in increasing access to psychological therapies, alongside considering due caution in relation to the application of traditional clinical approaches in school contexts.  相似文献   

Experiential learning in doctoral training programmes: fostering personal epistemology through collaboration     

Cho Kwong Charlie Lam  Cuong Huu Hoang  Ricky Wai Kiu Lau  Basil Cahusac de Caux  Yang Chen  Qiao Qian Tan 《Studies in Continuing Education》2019,41(1):111-128

There has been increasing recognition for the need to reform doctoral training practices to foster students’ personal epistemology. This study describes the design and evaluation of a learning experience designed to help students understand the scholarly publication process. Firstly, this study discusses the design of the learning experience, describing the collaborative process of writing an interdisciplinary publication using both online and face-to-face learning. Secondly, this study evaluates the effectiveness of the learning experience by examining students’ reflections. We show that participation in the learning experience helped students to develop their academic writing proficiency, collaboration and teamwork, intercultural competence, and ability to engage in reflective practice. Importantly, we show that each student also created more individualised knowledge, gaining insight into how they and others think. This study, therefore, demonstrates that personal epistemology can be fostered through collaboration in a doctoral writing group context.  相似文献   

Factors in life science textbooks that may deter girls' interest in science     

Ellen F. Potter  Sue V. Rosser 《科学教学研究杂志》1992,29(7):669-686

In order to examine factors that may deter girls' interest in science, five seventh-grade life science textbooks were analyzed for sexism in language, images, and curricular content, and for features of activities that have been found to be useful for motivating girls. Although overt sexism was not apparent, subtle forms of sexism in the selection of language, images, and curricular content were found. Activities had some features useful to girls, but other features were seldom included. Teachers may wish to use differences that were found among texts as one basis for text selection.  相似文献