基于高斯核的SVM的参数选择

基于高斯核的支持向量机应用很广泛,高斯核参数σ的选择对分类器性能影响很大,本文提出了从核函数性质和几何距离角度来选择参数σ,并且利用高斯函数的麦克劳林展开解决了参数σ的优化选择问题。实验结果表明,该方法能较快地确定核函数参数σ,且 SVM 分类效果较好,解决了高斯核参数σ在实际应用中不易确定的问题。     

两种IMC-PID整定方法的比较

主要针对一阶时滞过程和二阶时滞过程设计的内模控制器,分别用麦克劳林展开法和分子分母相同幂次系数相等法为相应的IMC-PID控制器进行了参数整定。分别选取模型进行了仿真,结果表明:分子分母对应幂次相等法控制效果略优于麦克劳林展开法,两种方法都能取得很好的控制效果。     

Evelyn Road,Silvertown, Niall McLaughlin Architects

Bruce Stewart describes how the industrial landscape of Silvertown in east London became a design generator for a housing scheme, which benefits from a treatment that is particular to its site and, in so doing, adds to the fabric of the area.     

麦克劳林金矿项目的一些经验及其启示

本文介绍了霍氏矿业公司麦克劳林金矿项目过程的一些经验和特点,并在此基础上对优化我国的矿业开发项目过程提出了一些看法。     

Sustaining Technology

To attempt to capture the extent of the engagement in environmental and ecological issues by architects during the early 1970s as viewed through the pages of AD is an issue in itself. The editorial policy of the magazine at that time was such that it actively commissioned articles and global surveys that would inform the profession of the environmental impact of construction long before ‘sustainability’ became a convenient buzz word. Robert Webb is one of a new generation of environmental engineers who acknowledges a debt to those who helped to define the terms we use so readily today. He sees how architects fell off the environmental wagon during the middle of the 1970s and are only now beginning to climb back on, but wonders how much understanding of our planet has been lost in the interim. Copyright © 2005 John Wiley & Sons, Ltd.     

Dirk Cove

Jeremy Melvin describes how for Niall McLaughlin the remodelling of a coastguard's cottage, in a dramatic coastal setting in County Cork, offered a unique opportunity to render ‘nature into ephemeral space’. Copyright © 2006 John Wiley & Sons, Ltd.