详细介绍了一种新的机器学习的方法——流形学习。流形学习是一种新的非监督学习方法,可以有效地发现高维非线性数据集的内在维数并进行维数约简,近年来越来越受到机器学习和认知科学领域的研究者的重视。目前已经出现了很多有效的流形...详细介绍了一种新的机器学习的方法——流形学习。流形学习是一种新的非监督学习方法,可以有效地发现高维非线性数据集的内在维数并进行维数约简,近年来越来越受到机器学习和认知科学领域的研究者的重视。目前已经出现了很多有效的流形学习算法,如等度规映射(ISOMAP)、局部线性嵌套(Locally Linear Embedding,LLE)等。详细讲述了当前常用的几种流形学习算法以及在流形方面已经取得的研究成果,并对流形学习目前在各方面的应用作了较为细致的阐述。最后展望了流形学习的研究发展趋势,且提出了流形学习中仍需解决的关键问题。展开更多
According to the motor’s working principle and the technology of autocontrol, a kind of electronic spray of motor with small displacement is carried out by closed loop control of fuel based on oxygen sensor. Fuel con...According to the motor’s working principle and the technology of autocontrol, a kind of electronic spray of motor with small displacement is carried out by closed loop control of fuel based on oxygen sensor. Fuel consumption and exhaust-gas of motor can be minimized at lower cost and its performance can be improved,when this novel and practical solution is applied.展开更多
文摘详细介绍了一种新的机器学习的方法——流形学习。流形学习是一种新的非监督学习方法,可以有效地发现高维非线性数据集的内在维数并进行维数约简,近年来越来越受到机器学习和认知科学领域的研究者的重视。目前已经出现了很多有效的流形学习算法,如等度规映射(ISOMAP)、局部线性嵌套(Locally Linear Embedding,LLE)等。详细讲述了当前常用的几种流形学习算法以及在流形方面已经取得的研究成果,并对流形学习目前在各方面的应用作了较为细致的阐述。最后展望了流形学习的研究发展趋势,且提出了流形学习中仍需解决的关键问题。
文摘According to the motor’s working principle and the technology of autocontrol, a kind of electronic spray of motor with small displacement is carried out by closed loop control of fuel based on oxygen sensor. Fuel consumption and exhaust-gas of motor can be minimized at lower cost and its performance can be improved,when this novel and practical solution is applied.