为提高名词性属性实例差异的识别精度,优化分类算法性能,综合考虑实例的属性和类别特征,提出了一种基于条件概率分布的混合距离度量方法.首先,计算属性间以及属性与类别间条件概率分布的差异;其次,利用互信息对2种差异进行加权组合,得...为提高名词性属性实例差异的识别精度,优化分类算法性能,综合考虑实例的属性和类别特征,提出了一种基于条件概率分布的混合距离度量方法.首先,计算属性间以及属性与类别间条件概率分布的差异;其次,利用互信息对2种差异进行加权组合,得到新的混合距离度量;最后,利用K-近邻算法在20个UCI(University of California Irvine)数据集上进行仿真实验,并将其应用于儿童阑尾炎的诊断和治疗.结果表明:较重叠度量等3种度量方法,本文提出的距离度量方法,显著提高了分类算法的准确率,具有较好的应用前景.展开更多
The goal of this paper is to enhance a practical nominal characteristic trajectory following(NCTF) controller that is specifically designed for two-mass point-to-point positioning systems. A nominal characteristics tr...The goal of this paper is to enhance a practical nominal characteristic trajectory following(NCTF) controller that is specifically designed for two-mass point-to-point positioning systems. A nominal characteristics trajectory contained in the NCTF controller acts as movement/motion reference and a compensator is utilized to force the object to detect and follow the reference/desired trajectory. The object must follow and track closely and should be as fast as possible. The NCTF controller is designed with two different intelligent based compensator approaches which are fuzzy logic and extended minimal resource allocation network. The proposed controller which is NCTF are compared with the conventional proportional integral compensator. Then the results of simulation are discussed for the positioning performances. The inertia variations due to the effect of the design parameters are also assessed to see the robustness of controllers. The results show that the NCTF control method designed from an intelligent based compensator has a better positioning performance in terms of percentage of overshoot, settling time, and steady state error than the classical based compensator.展开更多
Translation,as a medium of globalization and the means of overcoming the Babylonian curse,is approached differently by varied translation theories,among which the Skopos approach seems to the one that guides the trans...Translation,as a medium of globalization and the means of overcoming the Babylonian curse,is approached differently by varied translation theories,among which the Skopos approach seems to the one that guides the translation of the nomination dossier in an implicit manner.The dossier,distinct from other genres of texts,has a very clear function which explains why the Skopos theory plays an invisible hand throughout its translation.展开更多
文摘为提高名词性属性实例差异的识别精度,优化分类算法性能,综合考虑实例的属性和类别特征,提出了一种基于条件概率分布的混合距离度量方法.首先,计算属性间以及属性与类别间条件概率分布的差异;其次,利用互信息对2种差异进行加权组合,得到新的混合距离度量;最后,利用K-近邻算法在20个UCI(University of California Irvine)数据集上进行仿真实验,并将其应用于儿童阑尾炎的诊断和治疗.结果表明:较重叠度量等3种度量方法,本文提出的距离度量方法,显著提高了分类算法的准确率,具有较好的应用前景.
文摘The goal of this paper is to enhance a practical nominal characteristic trajectory following(NCTF) controller that is specifically designed for two-mass point-to-point positioning systems. A nominal characteristics trajectory contained in the NCTF controller acts as movement/motion reference and a compensator is utilized to force the object to detect and follow the reference/desired trajectory. The object must follow and track closely and should be as fast as possible. The NCTF controller is designed with two different intelligent based compensator approaches which are fuzzy logic and extended minimal resource allocation network. The proposed controller which is NCTF are compared with the conventional proportional integral compensator. Then the results of simulation are discussed for the positioning performances. The inertia variations due to the effect of the design parameters are also assessed to see the robustness of controllers. The results show that the NCTF control method designed from an intelligent based compensator has a better positioning performance in terms of percentage of overshoot, settling time, and steady state error than the classical based compensator.
基金the staged achievement of 2014 social sciences funded program of Education Department of Shaanxi Provincial Government-"Establishment of Bilingual Corpus of World Heritage Sites in Shaanxi Province"(14JK1768)
文摘Translation,as a medium of globalization and the means of overcoming the Babylonian curse,is approached differently by varied translation theories,among which the Skopos approach seems to the one that guides the translation of the nomination dossier in an implicit manner.The dossier,distinct from other genres of texts,has a very clear function which explains why the Skopos theory plays an invisible hand throughout its translation.
