基于跨模态空间匹配的多模态肺部肿块分割网络

现有多模态分割方法通常先对图像进行配准,再对配准后的图像进行分割.对于成像特点差异较大的不同模态,两阶段的结构匹配与分割算法下的分割精度较低.针对该问题,该文提出一种基于跨模态空间匹配的多模态肺部肿块分割网络(MMSASegNet),其具有模型复杂度低和分割精度高的特点.该模型采用双路残差U型分割网络作为骨干分割网络,...     

网格技术模式下电子商务的应用研究

针对目前电子商务应用中存在的资源瓶颈问题，结合网格技术应用背景，提出了网格技术模式下电子商务的应用模型，对其体系结构、分层特性进行了具体的阐述，结合一个简单的应用实例分析了网格技术模式下电子商务应用的特点，未来电子商务技术发展的趋势。     

Optimum and near optimum feature selection for multivariate data

In designing pattern classification systems for a small number of training samples, investigators have quoted that there exists an optimal number of features one can use. This number is a function of the number of training samples and the probability structure of the data. A recursive algorithm is given for selecting a near optimal feature set for classifying a data set consisting of two classes described by two equiprobable multivariate normal densities with a common covariance matrix. We compare this near optimal feature selection algorithm with the optimal exhaustive search algorithm and discuss examples for both algorithms.     

模糊传感器训练算法

本文提出了模糊传感器的一种分段式训练调参方法。对温度模糊传感器的仿真结果表明，该方法能在不同的测量结构下，较好地解决人类感知温度的模糊语言描述问题。     

视觉模式识别网络及光电实现

在形态学网络及改进的Ｈａｍｍｉｎｇ网络基础上，提出视觉模式识别网络及训练算法，形态学网络作为特征提取网络，具有相对图像平移和尺度不变的特性，改进的Ｈａｍｍｉｎｇ网络加速完成特征矢量的分类操作。经过学习的视觉模式识别网络，可完成图像特征的提取，实现相对于图像平移和尺度不变的模式识别，在此基础上，建立了光电视觉模式识别体系，从而实现实时模式识别。     

基于兴趣度的协同过滤商品推荐系统模型

本文结合了关联规则中的兴趣度和协同过滤技术来对客户的个人兴趣进行评价，提出了客户兴趣度的商品推荐参考模型，并将此模型应用于电子商务网站的商品推荐，从而更好地吸引客户的注意力，满足客户的喜好，使客户感受到完全个性化的购物体验。     

A real-time LPC-based vocal tract area display for voice development

This article reports the design and implementation of a graphical display that presents an approximation to vocal tract area in real time for voiced vowel articulation. The acoustic signal is digitally sampled by the system. From these data a set of reflection coefficients is derived using linear predictive coding. A matrix of area coefficients is then determined that approximates the vocal tract area of the user. From this information a graphical display is then generated. The complete cycle of analysis and display is repeated at ≈20 times/s. Synchronised audio and visual sequences can be recorded and used as dynamic targets for articulatory development. Use of the system is illustrated by diagrams of system output for spoken cardinal vowels and for vowels sung in a trained and untrained style     

Documenting laryngeal change following prolonged loud reading: A videostroboscopic study

This study investigated the effects of prolonged loud reading on trained and untrained subjects. Subjects were eight young women singers, and eight young women with limited musical experience. Each subject underwent videostroboscopic examination prior to and following 1 h of prolonged loud reading. The pretest and posttest videotaped samples were randomized and presented to three experienced judges, who evaluated various aspects of laryngeal appearance and vibratory characteristics. Analyses of group data revealed that untrained subjects showed a small but significant increase in amplitude of vocal fold excursion following the experimental task. No significant differences were noted in the trained singer group. When individual variation was analyzed, it was found that most subjects did not show many changes from pretest to posttest. It was concluded that a l-h loud-reading task was not sufficient to induce notable laryngeal alterations     

ICT integration in mathematics initial teacher training and its impact on visualization: the case of GeoGebra

This case study investigates the impact of the integration of information and communications technology (ICT) in mathematics visualization skills and initial teacher education programmes. It reports on the influence GeoGebra dynamic software use has on promoting mathematical learning at secondary school and on its impact on teachers’ conceptions about teaching and learning mathematics. This paper describes how GeoGebra-based dynamic applets – designed and used in an exploratory manner – promote mathematical processes such as conjectures. It also refers to the changes prospective teachers experience regarding the relevance visual dynamic representations acquire in teaching mathematics. This study observes a shift in school routines when incorporating technology into the mathematics classroom. Visualization appears as a basic competence associated to key mathematical processes. Implications of an early integration of ICT in mathematics initial teacher training and its impact on developing technological pedagogical content knowledge (TPCK) are drawn.     

自动化本科生科研训练与创新能力培养的探索

创新型人才的培养是高等学校面临的三大重要任务之一。高素质的人才不仅要具备坚实宽广的理论基础,更要具备前瞻性的思维以及创新意识和创新能力。而目前高校中开展的科研训练项目对培养本科生的创新能力和实践能力起到了积极的促进作用,对提升工科专业的人才培养质量具有重要的意义。本文主要结合我校自动化专业本科科研训练活动的实践,主要针对理论教学与科研环节的统一,科研训练模式的多样化、训练项目的实施以及质量考核等问题进行了研究和探索。