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1.
机器学习及其主要策略   总被引:3,自引:0,他引:3  
本文介绍了机器学习的定义,意义,然后对机器学习系统的基本结构进行分析,最后分别给出了机器学习的几种主要策略的基本思想。  相似文献   

2.
随着大数据时代的到来,构建大数据下的机器学习系统会更加复杂和困难。开源机器学习工具的使用成为学术界和产业界关注的热点。对当前国内外主流机器学习工具进行研究和分析,总结各机器学习工具优缺点,为机器学习研究者和开发人员提供参考。  相似文献   

3.
随着信息化的普及和数据库的大量建立,如何从数据中提炼出有用的信息已成为亟待解决的问题。机器学习是人工智能研究的核心问题,文章阐述了机器学习的概念、发展和分类及其应用,提出了机器学习的研究目标,指出了机器学习的发展趋势。  相似文献   

4.
面部表情识别是计算机视觉热门领域。表情识别技术使得计算机能够理解人类的情绪,具有广阔应用前景。针对基于传统机器学习和深度学习的表情识别方法进行研究,首先归纳表情识别领域常用的公开数据集;然后从传统的机器学习和深度学习角度介绍表情识别基本流程与常见方法;最后指出表情识别领域存在的问题,并对未来可能的发展方向进行了总结。  相似文献   

5.
基于机器学习的智能决策支持系统   总被引:3,自引:0,他引:3  
机器学习技术的迅速发展为新一代智能决策支持系统的构成提供了实现基础。文章研究了智能决策支持系统和机器学习技术的最新发展状况,讨论了基于机器学习的智能决策支持系统中的若干问题,并研究了具体的体系结构及其中的问题。  相似文献   

6.
阐述了机器学习的概念及其研究现状,讨论了其中的关键技术、难点及应用与发展前景,并对机器学习研究中的有关问题提出一些看法.  相似文献   

7.
近年来机器学习越来越火,被很多人视为神器,指哪打哪,所向披靡,地球人已经不是对手了。很多安全领域的难题也用到机器学习技术来解决,比如垃圾邮件分类、僵尸号检测、恶意软件分类等。去年微软在Kaggle上赞助了一个Windows恶意软件分类比赛~[1],冠军队赛前并没有任何恶意软件知识,仅凭基本的机器学习技能就赢得第一名,模型准确率接近100%。这似乎意味着数据科学家开始来  相似文献   

8.
量子机器学习是量子计算与机器学习交叉形成的新研究方向,其主要目标是利用量子特性实现对传统机器学习算法的加速。目前已经出现了不少有实际应用价值的量子机器学习算法,这些算法能通过降低计算的复杂性程度,在一些特定领域实现弱人工智能。从可计算性的视角来看,量子机器学习能完成非决定性计算,在理论上可以实现对意识结果的模拟,从而为强人工智能提供支持。  相似文献   

9.
机器学习作为人工智能的核心学科,一直与哲学认识论问题交织在一起。通过对机器学习本质的分析,发现尽管机器学习研究领域发展迅速,但认识活动过程中的主体依然是人类,机器学习只是人类认识活动和实践活动的一个辅助性技术工具;机器学习为人类提供了一种认识世界的新思路、新工具和新方式,是对哲学认识论问题的进一步深化;机器学习是对传统逻辑中的归纳推理、演绎推理和类比推理这些人类经典形式推理的思维模仿和技术拓展。  相似文献   

10.
在新一轮人工智能大潮中,机器学习担当着人工智能核心算法引擎的作用。文章介绍了适于中高年级本科生吸收消化的三大主流机器学习思想及其代表性方法,旨在为学生后续进行扩展性和创新性的机器学习方法学习与研究打下良好基础。  相似文献   

11.
Fantasm: The triumph of form (an essay on the democratic sublime)   总被引:1,自引:1,他引:0  
This essay attempts to counter the dreariness of postmodern critique and culture by locating the vital force of phantasy, rhetoric, argument, hope, and memory in contemporary public affairs. More particularly, it engages recent controversies about collective memory and the FDR memorial statue especially to generate a greater sensitivity to the fact that we are agents (and not just dupes) of history. The body, symbolic and material, is a core site for the history, theory, and practice of democracy, I argue, and is the hard kernel of collective identification and division. Methodologically, the essay fuses Aristotle and Lacan's ideas about phantasy as a perceptual device, which gages and creates public and personal desire, as an analytic frame for the study of public discourse.  相似文献   

12.
This article describes the findings of a qualitative study on knowledge, beliefs, attitudes, and practices towards children with spina bifida and hydrocephalus in four regions of Uganda. Focus group discussions and semi-structured interviews were held with parents of children with spina bifida and hydrocephalus, policy-makers, and service providers. Our findings describe how negative knowledge, beliefs, attitudes, and practices create barriers to treatment and inclusion of children with spina bifida and hydrocephalus and their parents in Uganda. The findings show how knowledge, beliefs, attitudes, and practices evolve over time, are both similar and differ in the various regions, and become more conducive towards accessing treatment and achieving inclusion. Sensitisation and early intervention including parents and service providers in dissemination of knowledge, rehabilitative care to set the trend for positive change and support, as well as longitudinal studies of children with spina bifida and hydrocephalus and their parents are recommended.  相似文献   

13.
Book Reviews     
Books reviewed:
Richard Edwards and Robin Usher, Globalisation and Pedagogy: Space, place and identity
Jackie Brine, Educating Women: Globalizing Inequality
David Carr, Professionalism and Ethics
Andrew Pollard and Ann Filer, The Social World of Pupil Career: Strategic Biographies through Primary School
Bernard Crick, Essays on Citizenship
Mike Bottery and Nigel Wright, Teachers and the State: Towards a Directed Profession
Stephen Heathorn, For Home, Country and Race: Constructing Gender, Class and Englishness in the Elementary School 1880-1914
Jane M. Page, Reframing the Early Childhood Curriculum: Educational Imperatives for the Future
Leslie P. Steffe and Patrick W. Thompson (eds), Radical Constructivism in Action
Patricia Broadfoot, Marilyn Osborne, Clare Planel and Keith Sharpe, Promoting Quality in Learning – Does England have the Answer?
Claire Cameron, Peter Moss and Charlie Owen, Men in the Nursery: Gender and Caring Work
Mike Cole (ed), Education, Equality and Human Rights
R. Alexander, P. Broadfoot and D. Phillips, Learning from Comparing: New Directions in Comparative Educational Research , Volume 1 Contexts, Classrooms and Outcomes
OECD, Learning to Bridge the Digital Divide  相似文献   

14.
创新源于实践   总被引:68,自引:66,他引:68  
从理性上分析了文化的知识、思维、方法和精神4个层面的内涵及其相互关系。并提出学习和知识,思考和思维,实践和方法三者的关系。其中学习、知识是基础,思考、思维是关键,实践、方法是根本。创新来源于实践,一切文化来源于实践。在素质教育中应处理好学习、思考和实践的关系。  相似文献   

15.
作文教学的改革应该是一个系统的工程,它涉及了写作的思想与方法、过程与评价、反馈与矫正,还涉及了吸纳与输出、积累与整合、应用与拓展、发现与创新等方面的研究与改革。新课程理念下对作文的创新评价应从评价理念人本化、评价功能激励化、评价主体多元化、评价内容综合化、评价形式民主化、评价方法多样化等方面来进行,以激发学生自主写作、快乐写作的欲望,让学生在写作的实践过程中抒写自我的心灵感受,实现人格与能力的和谐发展。  相似文献   

16.
Making is a rapidly emerging form of educational practice that involves the design, construction, testing, and revision of a wide variety of objects, using high and low technologies, and integrating a range of disciplines including art, science, engineering, and mathematics. It has garnered widespread interest and support in both policy and education circles because of the ways it has been shown to link science learning to creativity and investigation. Making has taken root in out-of-school settings, such as museums, science festivals, and afterschool and library programmes; and there is now growing interest from primary and secondary educators in how it might be incorporated into the classroom. Making expands on traditions associated with Technology Education and Design-Based Learning, but differs in ways that can potentially broaden participation in science and STEM learning to include learners from communities historically underrepresented in STEM fields. STEM-Rich Making is centrally organised around design and engineering practices, typically integrating digital tools and computational practices, and positions scientific and mathematical concepts and phenomena as the materials for design. This paper takes a critical view of the claims about Making as a productive form of science teaching and learning, and reviews the current research literature’s substantiation of the ways in which Making supports students’ agency, promotes active participation in science and engineering practices, and leverages learners’ cultural resources.  相似文献   

17.
对西安市七区全民健身场所年龄分布、健身规律以及对健身功能的认知进行问卷调查,进行数理统计后,结合有关献进行分析。结果发现经济压力和生活压力,健身观念以及生活习惯,健身理论研究、健身运动的组织以及宣传等政府行为,工作性质以及工作时间等均对全民健身的开展有着不同程度的影响。建议政府、单位、社会结合,开发新运动项目、制定运动处方,并加大宣传力度,全面深入地开展群众性体育竞赛,促进全民健身从“我为”向“为我”转化,必能促进全民健身活动健康、有序地开展。  相似文献   

18.
Adopting a person-centered approach, we profiled 5th and 6th grade children's (152 boys and 161 girls) school-related beliefs about perceived task difficulty and agency beliefs in ability and effort. Five clusters were compared across key learning-related dimensions encompassing underlying worldviews (means–ends beliefs, normative difficulty, nature of ability), motivation (intrinsic, identified, introjected, and extrinsic), and adjustment (achievement and well-being): Agentic (high ability, high effort, low difficulty), Strivers (above average ability, high effort, high difficulty), Normative (average ability, effort and difficulty), Disengaged (low ability, low effort, average difficulty) and Challenged (low ability, low effort, high difficulty). The findings suggest that difficulty, perceived either as challenge or obstacle, plays an important role for the belief profiles, and that relationships with worldviews and motivation are indicative of adaptation and maladaptation.  相似文献   

19.
Reviews     
Buckingham, David Moving Images: Understanding Children's Emotional Responses to Television
Aldrich, Richard (ed) In History and in Education: Essays presented to Peter Gordon
Kohli, Wendy (ed) Critical Conversations in Philosophy of Education
Griffiths, Morwenna Feminisms and the Self: the web of identity
Fryer, Marilyn Creative Teaching and Learning
Atkinson, Paul; Davies, Brian and Delamont, Sara (eds) Discourse and Reproduction: Essays in Honour of Basil Bernstein
Slee, Roger Changing Theories and Practices of Discipline
Woods, Peter and Jeffrey, Bob Teachable Moments: The Art of Teaching in Primary Schools
Best, Ron (ed) Education, Spirituality and the Whole Child
Bassey, Michael Creating Education Through Research
Higham, Jeremy; Sharp, Paul and Yeomans, David The Emerging 16–19 Curriculum: Policy and Provision
Bruner, Jerome The Culture of Education
Halsall, Rob and Cockett, Mike (eds) Education and Training: Chaos or Coherence
McBride, Rob (ed) Teacher Education Policy
Wideen, Marvin F. and Grimmett, Peter P. (eds) Changing Times in Teacher Education
Nixon, Jon; Martin, Jane; McKeown, Penny and Ranson, Stewart Encouraging Learning: towards a theory of the learning school
Gewirtz, Sharon; Ball, Stephen, J. and Bowe, Richard Markets, Choice and Equity in Education  相似文献   

20.
构建现代大学制度的过程就是对现行大学制度不断变革和完善的过程。大学制度变革要面临大学与政府、大学与社会、大学内部学术与行政之间的价值差异,具体表现为自治与控制、超越与适应、自由与秩序之间的价值差异。每一种价值都有其局限性和合理性,不能简单地肯定一个而否定另外一个。自治、超越、自由是基于大学本位的价值追求,因此要以自治、超越、自由为重心,通过大学制度创新调整大学与政府、大学与社会、学术与行政之间的关系,寻求自治与控制、超越与适应、自由与秩序之间的平衡。  相似文献   

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