But, during the research of theory of qualitative modeling, the descriptions of system state variables generally are expressed only by some limited numerical information in the domain that represents system variables with qualitative changes, or by numerical symbol information, or even that the relationship of function dependences only has symbol information. Thus, the inference procedure which starts from the initiate state will generate a lot of false behaviors for more complex systems and that cannot be applied to practice. Therefore, in order to realize the quality adjustment and quantity modeling for the complex systems, We must enhance the strength information expressed by system variables and function dependences which are satisfied by system variables. The method and theory of fuzzy sets are the first choice for enhancing the strength of qualitative representation during the study of the combination of quality and quantity. The reason is that fuzzy description is very near to qualitative descriptions and it allows the people to add some heuristic knowledge to the expression of variables information. So it moves from the qualitative expression to quantity by a big step. This is why the fuzzy is the necessary way of representing complexity. It is an important tool to combine both combining quality and quantity to research the complex systems.
然而，在目前研究的定性建模理论中，对系统变量状态的描述一般仅用论域中有限的几个表征系统变量有质的改变的数值信息或数值符号信息来表示，甚至于系统变量之间的函数依赖性也只有符号信息，这样，对于较为复杂的系统，由初始状态出发进行的推理将会产生大量的虚假行为，使得根本无法实际应用，所以要实现复杂系统的定性判断、定性建模，就必须增强关于系统变量值及系统变量之间所具有的函数依赖方面表示的强度信息，而模糊理论和方法是定性和定量相结合增强定性信息表示强度的首选方法，这是因为模糊描述和定性描述最接近，而且允许人们在不确定性信息下把一些启发性知识加入变量信息的表示中，从而将定量表示前进了一大步，所以说模糊是描述复杂性的必然产物，是定性定量相结合研究复杂系统的重要工具。
In the article, we firstly research the Semantic Web system structure, data model, OWL knowledge representation, the ways of the knowledge representation and deduction that are supplied when regarding ontology as the knowledge level and its application; In addition, we research the description ways regarding RDF and RDFS as metadata. OWL is regarded as the ontological description language, metadata is represented as tri-array, extending the RDF and RDFS relation type, adding the semantic information to the relation, creating the concept level tree and the concept semantic network; we also research the knowledge deduction and knowledge gaining algorithm of relations, such as contain, symmetry, transitivity, inverse and so on, and extend the OWL ontological description language and strengthen its ability of the rule representation; Secondly, we think that the semantic network is knowledge representation way that has stronger expression ability and flexibility in the artifical intelligence domain and it become mature little by little, then this article researches the transformation from RDF to SNetL; Morover, we research the theory of Description Logic and its application in the knowledge representation and deduction of Semantic Web; On the basis of above research, we create the common-software information model when linking the common-software knowledge domain, create the ontology framework of this domain and develop the intelligent knowledge discovery experimental system of the common-software information domain.
本文首先对语义Web的体系结构、数据模型、OWL的知识表示等和本体作为在知识层提供知识表示、知识推理的方法及其应用进行了研究；另外，以RDF和RDFS为元数据的描述方法，OWL作为本体描述语言，将元数据表示为三元组，并扩展RDF和RDFS的关系类型，在关系上加上语义信息，建立元数据之间的概念层次树和概念语义网络图，研究其中的包含、对称、传递、逆等关系的知识推理和知识获取算法，并扩展了OWL本体描述语言，增强其在规则表示等方面的能力；其次考虑语义网络是人工智能领域中表达能力强且灵活的知识表示方法，在知识推理方面也逐渐成熟；本文对RDF到语义网络语言SNetL的转换进行了研究；并且了研究描述逻辑的理论及在语义Web中知识表示及推理的应用；在以上研究基础上，结合常用软件知识领域，建立常用软件信息模型，构建了该领域的本体框架，研制出常用软件信息领域智能知识发现实验系统。
The Theory of the Copyright Public Domain and Its Application in Information Services of the Library
著作权公共领域理论及其在图书馆信息服务中的应用
Direct identification of aerodynamic rational function can meet the preliminary information of aerodynamic force for time domain and frequency domain of flutter analysis. So the establishment of corresponding theory and test technique has important practical engineering value.
直接识别气动力有理函数可以同时满足时域和频域颤振分析对前期气动力信息的需求，相应的理论体系和试验技术的建立具有重要的工程实用价值。
Based on the theory of graded protection, information domain of SCAL information network are divided as well according to the different safety grade of different data.
基于等级保护的思路，按照不同数据的不同安全等级，给出了川航信息网络的信息域划分方法。
For the advantages of belief function theory in uncertain information representing and reasoning, it has been applied widely in the domain of uncertain information fusion.
信任函数理论在不确定信息的表示与推理方面具有明显优势，被广泛应用于信息融合领域。
With respect to extension of rough set theory under incomplete information systems, rough set modal based on class similarity relation is proposed in this thesis, this modal can reclassify to objects through equivalence partition of domain values.
在不完备系统下的粗糙集理论的扩充方面，提出了一种类相似关系的粗糙集模型，该模型通过对域值的等价划分，可对对象进行重新分类。
Use model and theory of strategy management and information aspect, and has carried on initial research to the various tactics in the middle and small commercial bank cross-domain communication development strategy of our country.
运用战略管理和信息化方面的模型和理论，对我国中小商业银行网络化发展战略中的各种策略进行了研究。
As the signal of analogou circuit contains an abundance of information, the thesis study the fault diagnosis technology of amplitude domain and spectrum analysis methods of electrical signals, after that, the thesis proposes Fourier analysis as the main line, supplemented by other methods, so that to achieve the purpose of the analogou circuit fault diagnosis. Meanwhile, the thesis involved the necessary narrative of the wavelet analysis theory and neural network.
由于模拟电路的各种信号中包含着丰富的信息，论文在对常用的故障诊断技术以及幅值域参数，频谱分析等方法在模拟电路电学信号中的应用进行研究后，提出采取的技术路线是以傅立叶分析为主，其它方法为辅，从而来共同实现对模拟电路进行故障诊断的目的，同时对论文所涉及的神经网络和小波分析方法的原理作了必要的叙述。
By statistical prior model of image wavelet coefficient and iteration methods of channel capacity in the information theory, this paper derives a kind of computation method of multiply watermarking channel capacity in the wavelet domain.
通过建立小波域图像的统计先验模型和应用信息论中信道容量的迭代计算方法，给出了一类小波域图像乘性水印信道容量的数值计算方法和实验结果。
By using the Methodology of Information Domain and Synergetics Theory, a general equation of geomorphic systemative evolution has been established in this paper.
本文运用信息域方法、协同学理论建立了地貌系统演化的一般方程。
We discuss the principle of information electronic magnetic emanation and information eavesdropping using the method of signal theory and frequency domain analysis, and point out the importance of information emanation and suppression.
用信号和频域分析方法研究了计算机视频信号辐射泄漏机理和窃收机理，指出了信息泄漏防护的重要性；
The theoretical basis of this thesis is the image information science theory. In the domain of M-RS, this thesis involves the mine geological theory, the mine geographic theory, the mine environmental theory and the mine disaster.
论文研究的理论基础是图像信息科学理论，研究涉及矿山地质理论、矿山地理理论、矿山生态环境理论、矿山灾害理论等领域。
Along with the analysis of the effectiveness of NCW in cognitive domain, a knowledge function is proposed to portray the relation of information sharing and uncertainty quantitatively. The deterioration of network redundancy is modeled using complexity theory.
在对网络中心战的认知域效能评估进行深入分析的基础上，用基于信息熵的知识函数量化节点间的信息共享效果，用复杂性理论量化网络冗余的负面影响。
Using reference to the fault diagnosis and pattern recognition method which is adopted to deal with the uncertain information in the engineering domain, a basic frame of supplier selection based on evidential theory is offered, and the evidential theory reasoning model of supplier evaluation is constructed subsequently.
并借鉴工程领域中处理不确定、不完备性信息的故障诊断和模式识别方法，提出了一种基于证据理论推理方法的供应商选择基本框架，构造了供应商评价问题的证据理论推理模型。
In view of development diversification in the domain of library information consultation means, in order to develop consultation via maximumly making use of communication instrument, this paper advances a novel theory about using SM to intercommunion between users.
针对图书馆信息咨询手段的多样化发展，为了最大限度地利用现有的各种通讯手段来进行咨询活动，提出利用手机短信来进行读者交流，实现通过浏览器进行短信收发的功能；
The Designing and Accomplishing of Building Material Information System Based on Domain Theory
基于domain理论的建材信息系统设计与实现