通用抽取引擎框架:一种新的Web信息抽取方法的研究

大规模的网络视频信息既为用户信息分享带来了方便,同时也为国家监管部门带来了新的挑战。考虑到效率问题,在线视频监管则主要考虑视频描述信息。主要研究了网络视频描述信息的抽取问题,提出了一种新的Web信息抽取方法:通用抽取引擎框架,其主要包括对视频描述信息抽取问题的形式化描述和用户感知的视频网站逻辑模型。该方法在国家某部委的视频监管项目中已得到应用,并取得了很好的效果。实验结果表明,该方法的扩展性、通用性和抽取准确率大大优于其他方法。     

关于KDD的一类开放系统KDD的研究

On the basis of KDD(Knowledge Discovery based on Database),the paper proposes the general framework of the open KDD system－KDD*, discusses its theoretical foundation and realization of its key technology－double base cooperating mechanism. The result of initial illustration shows that the structure of KDD' is effective and available.     

Boolean operations on general planar polygons

Computing boolean operations between general planar polygons is one of the fundamental problems in geometric and solid modeling. In this work we present a new algorithm to calculate intersection, union and difference, valid for general planar polygons (manifold and non-manifold, with and without holes), based on a formal representation system. This formal model is based on the concept of simplicial chain, developed by Feito and Rivero (Computers & Graphics 22(5) (1998)). Using algebraic operations between simplicial chains we can obtain any general polygon and the Boolean operations between them. The fact of that our algorithm is based on simplicial chains and their operations, reduces the study of special cases, and allows us to develop a robust and efficient algorithm to calculate the intersection between general polygons.     

基于数据库系统表的通用查询方法

以数据库系统SQLServer7.0和SybaseSQLAnywhere5.0为例,分析了相关数据库系统表。提出了应用系统表的通用查询方法,并使用PowerBuilder做为开发工具,以具体实例详细论述了实现通用查询功能的一般方法。     

A framework of general instruments for multimedia art creation

In this paper, we propose a framework to develop general instruments for multimedia art creation. Recently, many attempts at creating multimedia art have been made with the aid of computer technology. However, a system for a certain artwork is usually dedicated to the artwork and cannot be applied to other artwork. After overviewing the prerequisites for a general multimedia instrument, we propose a framework for such a system. This framework is based on giving attention to common attributes among several multiple media. Moreover, we illustrate prototype instruments constructed in accordance with this framework. Finally, we show the results of an evaluative performance with the prototype instruments.     

电网智能综合补偿系统的设计

电网智能综合补偿系统可根据电网的动态变化情况,对电网的电压、功能率因数、谐波及三相不平均等因素实现综合补偿,文中详细介绍了这一基于８０Ｃ１９６的智能控制系统的基本结构和软硬件设计思想,实验结果表明了该系统的可行性和智能控制方法的有效性。     

浅析医院室内环境设计的人性化

随着物质、文化生活水平的日益提高,人们对就医环境在观念、内容、功能、形式等方面产生了更高层次的需求。本文通过对色彩、导向标识、无障碍等方面内容与人性化设计的关系分析,探讨了人性化设计在医院室内环境设计中的重要性和发展前景。使该空间以人为本的人性化细节方面真正做到对人的身心关怀。     

肾病专科电子病历系统的分析与设计

电子病历是医院信息化发展的趋势,专科病历系统更是必然产物。针对目前电子病历的不足之处,分析国内肾病专科医院对信息化产物的需求,设计出具有处方诊断功能的智能化的肾病专科电子病历系统。用户在B／S模式的平台上,能够快速准确地查阅病人的临床检验信息,权限用户还可以管理患者信息;能够快速地处理大量的临床检验数据并且准确地得出解析结果;能够得出处方辅助医生诊断。该系统可以有效提高医生的工作效率。     

利用CORBA和XML集成通用虚拟数据库

本文说明在Internet中建立虚拟数据库的必要性和重要性,通过虚拟图书馆实例介绍了虚拟数据库的工作原理和基本构件,探讨了一个基于OCRBA和XML技术的通用虚拟数据库模型,具体地说明了CORBA和XML在实现通用虚拟数据库中所起的作用。     

Surface tension calculation of the Sn–Ga–In ternary alloy

Surface tensions of the Sn–Ga–In ternary alloy are calculated from the surface tensions of the Sn–Ga, Ga–In and In–Sn sub-binary systems by using geometric models (the Kohler model and the Toop model), and a general solution model (the Chou model). The calculated results are in excellent agreement with the experimental data (except for the Kohler model), assuming an experimental accuracy of ±2.5%. At the same time, the surface tensions of the Sn–Ga–In ternary alloy at 773 K and their sub-binary systems are predicted on the basis of Butler’s equation, in combination with thermodynamic data, and different model parameters β$\beta$ equal to the ratio of the coordination number in the surface phase to that in the bulk phase. Different values of β$\beta$ have almost no influence on the surface tensions. The predicted results agree with the experimental data. Therefore, the resulting iso-surface tension curves for the Sn–Ga–In ternary alloy at 773 K, especially those calculated by using the Toop model, are reasonable.