data description

• Inheritance is such a universal need that it is a common capability in object - oriented environments like java , and in data description languages such as xml schema
  继承是一种普遍需求，因此是面向对象环境中的公共性能，如java ，在xml模式这样的数据描述型语言中也是如此。
• Given in this paper , through analyzing the framework of j2ee , there are three applications of xml in j2ee , such as data description and exchange , data present and message - oriented distributed computing . in the face project , we use xml and j2ee to implement the exchange of xml document and relation database . in addition , this paper proposes us a fine - grained access control algorithm for xml documents , which may protect the resource of xml documents
  本文详细地介绍了xml技术和j2ee技术，叙述了xml在j2ee中的三种应用：数据描述和交换、数据显示及面向消息的分布计算，并在实际的face项目中应用xml技术和j2ee技术，实现xml文档和关系数据库之间的相互转换；另外，对xml文档进行了细粒度的访问控制，提出了一种授权访问控制算法，实现了将源xml文档转变为符合一定安全需求的目标xml文档。
• Based on these descriptions , a nd model called support vector data description ( svdd ) is founded . ( 2 ) a qualitative guide for setting those parameters in oc - svms is investigated . a multi - layer high - speed training strategy was proposed to enable support vector algorithm to handle large training data
  ( 2 )通过分析支持向量机中模型参数对检测结果的影响,给出了确定这些参数的一般方法;提出了一种分层式的快速训练方法,克服了样本个数和维数对支持向量算法应用的制约,提高了训练效率。
• Generally industry information system is depended on multi - subsystems of different functions , but the method of traditional data exchange among them has no standards , so there are many problems such as : many interfaces , poor accessibility and security and etc , this brings on many " information island " . we must smash information bulwark , only good cooperation among sub - systems can make the enterprise more efficacious , so we need a data platform that has uniform data description , accessing standards and the feature of good opening to get data from every sub - system and give it to every department , the platform is a bridge between controlling layer and management layer , only in a good data service environment we can easily share and exchange information
  通常工业企业信息系统依赖于多个不同功能的子系统，然而它们之间的传统的数据交换方式没有一个统一的标准，因此造成接口众多、访问性、安全性差等多方面的原因，从而形成了一个个的“信息孤岛” ，只有打破“信息孤岛” ，各子系统之间良好协作，才能使得企业处于高效的运营状态，因此迫切需要一种通用的数据融合平台，将各个子系统的数据取出，并采用统一的数据描述格式，采用集中、共享的方式提供给企业内部的各个部门，建立起一个控制层到管理层的“桥梁” ，使数据的上传与下行之路畅通无阻，为企业提供良好的数据服务环境。