基于三维分割的图像加密算法

为了实现图像安全、快速加密,设计了一种新的数字图像混沌加密算法.仿真结果表明,该算法在没有扩散函数的情况下也能很好地改变图像的直方图,可以有效地抵制已知(选择)明文攻击,而且只有1次左映射或者右映射的情况下,该方法具有高置乱程度、良好的扩散性能和足够大的密钥空间,可获得足够高的安全性.     

基于数据场的大规模本体映射

针对已有的本体映射方法在处理大规模本体映射任务时效率和有效性较低的问题,文中提出了一个基于数据场的本体映射算法.该算法首先使用高效的相似度算法,建立本体中元素对另一本体的初始相关度;然后,利用数据场势函数引入周围本体元素对当前元素的影响,修正初始相关度,并最终确定本体间的相关子本体;最后,利用针对性的方法对上述相关子本体进行更有效的映射.实验结果表明,该算法可以在提高映射结果质量的同时保证较高的映射效率.     

Does India need to harmonize the law of patent exhaustion and parallel imports?

The amendment of patent law of India in 2005 to fulfill her international obligation under the TRIPS Agreement (World Trade Organization Agreement on Trade Related Intellectual Property Rights) was an outcome of an attempt to balance the competing interests of several stakeholders, including indigenous pharmaceutical companies, multi-national pharmaceutical companies, non-governmental organizations and civil society groups concerned with access to affordable drugs. The adverse consequence of this delicate balancing is introduction of some provisions in the Act whose compatibility with the TRIPS Agreement is questionable, and which therefore are prone to litigations. Section 107A(b) of the amended patent law dealing with parallel imports is one such provision, which, if interpreted word for word could have significant connotations for the rights of a patent owner. This article aims to examine the inconsistencies intrinsic in Section 107A(b) and discusses the divergences in the Indian patent law associated with the doctrine of exhaustion and parallel imports. This article also proposes legal amendments with a view to eliminate inconsistencies intrinsic in the section and enlarge the ambit of the exhaustion principle conceptualized therein, while concurrently remaining compliant with the TRIPS Agreement.     

哈工大软件学院“MSE+X”软件工程硕士跨国联合培养项目(英文)

In the information time,the information technology and industry plays more and more important role in development of economy,promoting the world to be unified and emphasizing the globalization through such tendency of their own.The IT application area also becomes larger and diverse through the mergence of multiple disciplines and multiple domains.IT industry demands the inter-disciplinary talent,who are believed to be industrialized,internationalized,and equipped with multi-disciplinary and inter-domain knowledge,and the ability of international competence.Facing the challenge of the new globalization tendency of international industry especially the IT and software industry,universities keep make great efforts to provide qualify graduates to fulfill the demand of industry.This paper introduces a novel joint Master programme which aims at establishing an international education system and platform.The schema,the characteristics,the execution principles are discussed wishing to share our practice and experience with our education colleagues.     

国际化创新人才的培养——从学生角度探讨

本文从当今中国人才竞争的状况和人才发展的严峻形势出发,在分析教育体制、学生能动性,以及未来可能的发展趋势基础上,阐述培养国际化创新性人才和构造全球化高等教育的必要性。结合教学实践与网络的知识对国际化创新人才进行结构化描述,最后,对如何培养创新性人才提出具体的方案,旨在为现阶段教育教学模式提供一些参考。     

基于SLAM的虚实配准方法研究

研究和实现了一种基于SLAM技术的虚实配准方法,通过将SLAM分离为定位和构图,分别利用改进的pf做位姿估计和ukf进行位置估计,进而实现整个场景内目标的位姿计算,最终完成虚实配准。一定程度上解决了传统方法中存在的视域受限问题,并同时支持户内和户外应用,提高了增强现实系统的可用性。     

一种企业应用中的单点登录系统的设计

针对企业多套应用系统用户认证相对独立、用户必须同时使用多个账户重复登录的问题,根据企业应用环境特点设计了一种单点登录（SSO）体系,该设计基于SAML技术构建统一认证平台,建立了用户帐号映射关系,对现有系统进行客户化改造,封装成认证中心（IDP）和服务提供者（SP）,通过集成的认证代理实现认证服务,实现了SSO和现有系统的良好结合。     

一种综合空域和时频域的数字水印算法

提出一种空域和时频域相结合的多分辨率灰度图像水印算法。该算法对原始载体图像进行离散小波分解,并对灰度水印图像先进行拉普拉斯金字塔分解再进行位平面分解。将水印图像位平面分解系数嵌入到原始图像的水平和垂直分量上,水印嵌入小波系数的位置由具有混沌特性的Arnold映射确定,从而实现水印的盲提取。实验结果证明,该算法对图像的普通处理,如噪声、滤波、剪切、JPEG压缩和旋转等,均具有较好的鲁棒性。     

基于双曲线映射签名的高效可分电子现金系统

基于双曲线映射的签名设计了一种新型可分电子现金方案,方案中有效地加入了压缩支付和批处理支付,计算时间复杂度较小,从而使得系统的整体效率较高。另外,方案中无需可信第三方(TTP)的参与,因而系统的整体开销较小。方案的安全性基于q-SDK假设、计算离散对数困难性假设以及单向散列函数存在性假设。