产品建模中本体层的表达规则

针对目前产品本体建模技术中存在的一些问题,从本体在知识表达层次中的作用人手,以分析哲学意义上的本体论为理论基础,结合概念的元属性分析理论,从建模语言和本体结构两个层次上对本体建模的规范进行了研究。     

Functional Validation in Grid Computing

The development of the World Wide Web has changed the way we think about information. Information on the web is distributed, updates are made asynchronously and resources come online and go offline without centralized control. Global networking will similarly change the way we think about and perform computation. Grid computing refers to computing in a distributed networked environment where computing and data resources are located throughout a network. In order to locate these resources dynamically in a grid computation, a broker or matchmaker uses keywords and ontologies to describe and specify grid services. However, we believe that keywords and ontologies can not always be defined or interpreted precisely enough to achieve deep semantic agreement in a truly distributed, heterogeneous computing environment. To this end, we introduce the concept of functional validation. Functional validation goes beyond the symbolic level of brokering and matchmaking, to the level of validating actual functional performance of grid services. In this paper, we present the functional validation concept in grid computing, analyze the possible validation situations and apply basic machine learning theory such as PAC learning and Chernoff bounds to explore the relationship between sample size and confidence in service semantics.     

基于语义Web的本体及本体映射研究概述

本体在语义Web中具有重要的地位，是解决语义层次上Web信息共享和交换的基础。文中介绍了本体的基本概念、描述语言及其在语义Web中的应用、本体映射的基本知识并综述了相关本体映射工程中的具体思想和方法。     

基于语义Web的GIS互操作技术

GIS互操作技术是实现地理信息共享的关键。目前对GIS互操作的研究还主要集中在语法层次上,在语义层次上的互操作研究还处于起步阶段。而语义Web技术能够提供从语法层次到语义层次上的互操作性。因此,如何将语义Web技术应用于GIS互操作是一个值得研究的问题。提出了一种基于语义Web的GIS互操作方案,使用OWL建立地理信息本体,在此基础上探讨了同一本体不同版本间的比较,实现了GIS的语义互操作。     

基于个性和OCC的机器人情感建模研究

机器人不仅要具有简单的机械作业和逻辑推理能力，还应当具有类似人类的情感能力．本文将个性与情绪、情感、理解、表达相结合，采用OCC模型作为评价标准，建立了符合人类情感规律的、可用于情感机器人的情感模型。通过一个应用上述模型的虚拟人情感交互系统．验证了此模型可以很好的对人类的情感进行仿真．可以应用于情感机器人和人性化计算机、游戏等许多领域。     

知识表示及企业本体建模研究

在企业建模领域引入本体思想,介绍了企业本体的概念、作用和意义,然后阐述了企业知识表示和组织策略。最后通过一个实例给出了本体建模的详细步骤和方法体系。基于本体的企业建模从根本上解决了企业的知识共享和重用问题。     

基于KQML面向虚拟企业合作伙伴选择的多Agent系统通信模型

给出了一个面向虚拟企业合作伙伴选择的多Agent系统基于KQML的通信模型。介绍了各Agent间通信时用到的KQML保留原语,并对KQML原语进行了适当的扩充以满足系统通信的要求。最后给出了在通信中使用较多的与数据操作有关的KQML消息到相关的数据操作SQL语句间的映射关系,较好地实现了KQML消息与SQL语句的衔接。     

A cooperative framework for integrating ontologies

Nowadays, there are systems and frameworks that support Ontology construction processes. However, ontology integration processes have not sufficiently been specified to date. In this article, by making use of a cooperative philosophy, we describe a real framework for the integration of ontologies supplied by a predetermined set of (expert) users, who may be interconnected through a communication network. This framework is based on a set of well-defined assumptions that guarantee the consistency of the ontology derived from the ontology integration process. Moreover, in the approach presented here, every (expert) user may consult the so-derived ontology constructed until a given moment in order to refine his or her private ontology. In addition to this, the model proposed in this work allows the experts involved in the construction of the ontology to use their own terminology when querying the global ontology obtained until a given instant from their own co-operative work. The validation of the framework is also included in this work.     

一种基于知网的情感计算方法

情感计算是对文本进行情感分析与挖掘,得出文本评价调性的过程。基于知网的情感计算方法首先依据知网＂情感分析用词语集＂构建情感词典,然后计算文本中特征词汇的情感倾向,最后通过累加得出文本的情感倾向。实验结果表明,在设定一个合理中性阀值后,能较好地计算出特征词汇和篇章的情感倾向,有较高的查全率和查准率。