A new crossover operator in genetic programming for object classification.

The crossover operator has been considered "the centre of the storm" in genetic programming (GP). However, many existing GP approaches to object recognition suggest that the standard GP crossover is not sufficiently powerful in producing good child programs due to the totally random choice of the crossover points. To deal with this problem, this paper introduces an approach with a new crossover operator in GP for object recognition, particularly object classification. In this approach, a local hill-climbing search is used in constructing good building blocks, a weight called looseness is introduced to identify the good building blocks in individual programs, and the looseness values are used as heuristics in choosing appropriate crossover points to preserve good building blocks. This approach is examined and compared with the standard crossover operator and the headless chicken crossover (HCC) method on a sequence of object classification problems. The results suggest that this approach outperforms the HCC, the standard crossover, and the standard crossover operator with hill climbing on all of these problems in terms of the classification accuracy. Although this approach spends a bit longer time than the standard crossover operator, it significantly improves the system efficiency over the HCC method.     

自适应监督式分布神经网络及其工业应用

针对工业生产过程的复杂性和时变性,提出一种用于工业生产过程模建的自适应监督式分布神经网络（SDNN）。介绍了SDNN网络的结构和自适应学习方法,并将SDNN网络与传统建模方法相结合,应用于铅锌烧结过程的烧结块成分预测。工业应用结果表明,SDNN模型具有较高的预测精度。与传统建模方法有机结合能更好地描述工业生产过程。     

基于线性矩阵不等式的不确定关联系统的分散鲁棒镇定

应用线性矩阵不等式（LMI）方法研究不确定性关联大系统的分散便棒镇定问题。系统中不稳定项具有数值界,可不满足匹配条件。基于不确定项的表达形式,给出了其可分散状态反馈镇定的充分条件,即一组LMIs有解。在此基础上,通过求第一凸优化问题,提出了具有较小反馈增益的分散稳定化状态反馈控制律的设计方法。仿真示例说明了该方法的有效性和优越性。     

KJ2005煤井监控系统软件的设计与实现*

针对目前中小型煤井的需求,结合计算机技术和网络技术,采用模块化设计在VC++ 6.0下开发了KJ2005煤井监控系统。对该软件的主要模块进行了简单介绍,并详细介绍了其串口通信接口程序的设计,给出了部分通信源码。应用表明,该系统简单、实用,能及时为用户提供准确信息,能动地减少了事故发生。     

基于概率统计的韵律短语分析

韵律短语分析是文语转换（Ｔｅｘｔ－ｔｏ－Ｓｐｅｅｃｈ）系统的重要组成部分。文章实现了一个基于概率统计的韵律短语分析方法。它首先构造了一个带有韵律短语间隔标记和词语ＰＯＳ信息的样本库,然后用它来训练和测试一个二元组模型,并针对出现的各种问题,提出了四种改进的思路。     

Co-M/Al2O3上环己烷的选择性氧化研究

采用溶胶-凝胶法制备了Co-M/Al₂O₃(M=Cu，Zn，Ni)催化剂。在没有任何有机溶剂或助剂的条件下，研究了以空气为氧化剂的环己烷选择性氧化。所制备四种催化剂的活性为Co-Ni/Al₂O₃ >Co/Al₂O₃ >Co-Zn/Al₂O₃ >Co-Cu/Al₂O₃。在Co-Ni/Al₂O₃中Co、Ni的质量分数分别为4.0%和3.0%时活性最好。以Co-Ni/Al₂O₃为催化剂，在4.5 MPa、443 K下反应120 min，环己烷转化率达9.9%，环己酮和环己醇的总选择性达94.6%，n(酮)∶n(醇)为2.8。Co-Ni/Al₂O₃催化剂连续使用五次后活性基本不变。     

卤-锑协同阻燃机理研究进展

详细论述了卤－锑阻燃协同体系的阻燃机同机理，以及卤－锑阻燃机理方面的研究新进展。     

一类新的具有扰动m-增生算子的非线性方程迭代算法(英文)

设X是具有Gteaux可微的一致凸Banach空间,T:X→X是一致连续的m-增生算子,C:X→X是非线性算子,并且存在某个λ>0,使得(I-λC)(I+λT)-1是非膨胀的.引入一类新的具有扰动m-增生算子的非线性方程迭代算法,并证明此算法强收敛于方程Tx+Cx=0的某个解.     

一种新颖的CDMA系统下多目标无线定位方法

利用Marginalized粒子滤波算法,处理CDMA(Code Division Multiple Access)系统中多目标无线定位及跟踪问题。在CDMA系统中,由于数据的非线性导致了过大的计算复杂度,并影响到定位的精度。论文主要从CDMA系统中多目标联合检测和建立基于边缘化粒子滤波器的数据融合模型两方面进行研究和分析,解决CDMA中多用户的辨别、定位精度和计算复杂度之间的矛盾。仿真结果证明其方法能够保证多目标定位的精度,并极大地减少计算复杂度。     

Reshaping 3D facial scans for facial appearance modeling and 3D facial expression analysis

3D face scans have been widely used for face modeling and analysis. Due to the fact that face scans provide variable point clouds across frames, they may not capture complete facial data or miss point-to-point correspondences across various facial scans, thus causing difficulties to use such data for analysis. This paper presents an efficient approach to representing facial shapes from face scans through the reconstruction of face models based on regional information and a generic model. A new approach for 3D feature detection and a hybrid approach using two vertex mapping algorithms, displacement mapping and point-to-surface mapping, and a regional blending algorithm are proposed to reconstruct the facial surface detail. The resulting models can represent individual facial shapes consistently and adaptively, establishing facial point correspondences across individual models. The accuracy of the generated models is evaluated quantitatively. The applicability of the models is validated through the application of 3D facial expression recognition using the static 3DFE and dynamic 4DFE databases. A comparison with the state of the art has also been reported.