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To obtain high performances, previous works on FAQ retrieval used high-level knowledge bases or handcrafted rules. However, it is a time and effort consuming job to construct these knowledge bases and rules whenever application domains are changed. To overcome this problem, we propose a high-performance FAQ retrieval system only using users’ query logs as knowledge sources. During indexing time, the proposed system efficiently clusters users’ query logs using classification techniques based on latent semantic analysis. During retrieval time, the proposed system smoothes FAQs using the query log clusters. In the experiment, the proposed system outperformed the conventional information retrieval systems in FAQ retrieval. Based on various experiments, we found that the proposed system could alleviate critical lexical disagreement problems in short document retrieval. In addition, we believe that the proposed system is more practical and reliable than the previous FAQ retrieval systems because it uses only data-driven methods without high-level knowledge sources. 相似文献
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The interpretation of computed tomographs (CTs) and magnetic resonance images (MRIs) to diagnose clinical conditions requires basic knowledge of sectional anatomy. Sectional anatomy has traditionally been taught using sectioned cadavers, atlases, and/or computer software. The computer software commonly used for this subject is practical and efficient for students but could be more advanced. The objective of this research was to present browsing software developed from the Visible Korean images that can be used for teaching sectional anatomy. One thousand seven hundred and two sets of MRIs, CTs, and sectioned images (intervals, one millimeter) of a whole male cadaver were prepared. Over 900 structures in the sectioned images were outlined and then filled with different colors to elaborate each structure. Software was developed where four corresponding images could be displayed simultaneously; in addition, the structures in the image data could be readily recognized with the aid of the color-filled outlines. The software, distributed free of charge, could be a valuable tool to teach medical students. For example, sectional anatomy could be taught by showing the sectioned images with real color and high resolution. Students could then review the lecture by using the sectioned and color-filled images on their own computers. Students could also be evaluated using the same software. Furthermore, other investigators would be able to replace the images for more comprehensive sectional anatomy. 相似文献
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Early Childhood Education Journal - Although teacher–child interaction has been recognized as an important indicator of quality in early care and education as well as a crucial predictor of... 相似文献
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Kyounghye Seo 《Asia Pacific Journal of Education》2014,34(3):337-350
This study investigated professional learning taking place in a teacher-created online community. In particular, this aimed to explore how teachers at different levels of participation learn in an online community. The results showed that teachers usually began as observers, reading others' postings and using contributors' teaching resources, and moved to collaborators, posting their comments on teaching resources and discussing their problems with other teachers, and then to contributors, sharing their teaching resources with other teachers and providing information, advice, and help to other teachers. As they participated in the online community at different levels, teacher learning took place in multiple ways including learning through tryout, collaborative problem solving, and critical reconstruction. Yet, not all teachers moved toward full participation in the online community. The majority of teachers remained as observers and their lack of participation in the negotiation of meaning constrained teacher learning. For the online community to be a fertile ground for teacher learning, more emphasis needs to be placed on the collaborative construction of knowledge and the transformation of shared practice, rather than the transmission of knowledge and the dissemination of good practice. 相似文献
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Yujeong Park Dong Gi Seo Eric J. Moore Byungkeon Kim 《The Journal of educational research》2018,111(4):404-416
The authors' purpose was to examine the degree to which low achievement is related to ontogenetic factors (i.e., personal psychological traits expressed as attention and depression) or microsystemic factors (i.e., socioeconomic status, parenting, relationship with peers and teachers), using a total of 721 middle school students in South Korea. Based on the percentile rank, low-achieving students (bottom 15%; n = 323) and high-achieving students (top 15%; n = 398) were grouped, and a multigroup structural equation modeling was employed to determine which ecological factor(s) contribute to predict low achievement of middle school students. Results from multigroup structural equation modeling showed that 3 of the 6 ecological and ontological factors had significant direct or indirect effect on low achievement: socioeconomic status (direct effect), attention (direct effect), parenting (indirect effect). The findings are discussed in terms of the intertwined influences of ecological factors on low achievement, finally leading to the discussion on the limitations and future directions for research. 相似文献
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The formation of the South Korean identity through national curriculum in the South Korean historical context: Conflicts and challenges 总被引：1，自引：0，他引：1
This study explores how the South Korean identity has been formed and transformed by examining the Korean national curriculum in its historical context. The study first examines how the Korean identity, previously formed by traditional ethnic values, has been transformed during the period of national modernization. It then describes the efforts to form a Korean identity through national curriculum reform amid globalization, a phenomenon that has rapidly progressed in Korea since the 1990s. It also discusses the conflicts within and challenges to Korean identity in the Korean curriculum reform process. 相似文献
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This article presents a new paradigm for continuing education of Clinical Instructors (CIs): the Constructivist Tridimensional (CTD) model for the design of an online curriculum. Based on problem-based learning, self-regulated learning, and adult learning theory, the CTD model was designed to facilitate interactive, collaborative, and authentic learning. The authors conducted experimental research with twenty-one physical therapy (PT) CIs to explore how the participants perceived the usefulness of the online curriculum structured around the CTD model in improving their knowledge in student mentoring. The CTD-inspired module was effective in that the participants perceived an improvement in the quality of their mentoring skills and they were able to maintain best practices. 相似文献