模糊测地形态学算子α-截集性质的研究

文章研究了由I.Bloch提出的模糊测地形态学有关算子的α-截集分解和重构问题,结果表明采用合适的三角模和反三角模算子,可以使由对应的二值形态学算子导出的模糊形态学算子有很好的特征匹配性。论文的意义在于若一个模糊测地形态学算子可以被分解和构造,那么就可以用它的有限个α-截集来逼近该模糊测地算子。     

基于蕴涵算子族L-λ-Π的模糊推理三I支持算法

提出了一类新的蕴涵算子族L-λ-Π,说明了它是ukasiewicz蕴涵算子、Goguen蕴涵算子更一般的形式。基于该算子族,给出了模糊推理FMP模型、FMT模型的三I支持算法和α-三I支持算法的计算公式,并给予了证明。     

参数LP系统的三I算法与α-三I算法

给出了连续三角模族Tp-L及其伴随蕴涵算子族Rp-L的定义,并且给出了逻辑系统LP的定义;证明了逻辑系统LP与逻辑系统L的等价性,在此基础上给出了基于蕴涵算子族Rp-L的三I算法与α-三I算法.     

蕴涵算子族Rλ-L∏GN及其三I支持算法

给出了一族新的伪三角模族Tλ-L∏GN及其伴随蕴涵算子族Rλ-L∏GN,它包括Lukasiewicz蕴涵算子、Gǒdel蕴涵算子、R0蕴涵算子及RΠ蕴涵算子;提出了基于蕴涵算子族的模糊推理的思想,并给出了基于蕴涵算子族Rλ-L∏GN的FMP模型的三I支持算法和α-三I支持算法。     

蕴涵算子族R_λ-L∏GN及其三Ⅰ支持算法

给出了一族新的伪三角模族Tλ-L∏GN及其伴随蕴涵算子族Rλ-L∏GN,它包括Lukasiewicz蕴涵算子、Gdel蕴涵算子、R0蕴涵算子及R∏蕴涵算子;提出了基于蕴涵算子族的模糊推理的思想,并给出了基于蕴涵算子族Rλ-L∏GN的FMP模型的三Ⅰ支持算法和α-三Ⅰ支持算法。     

参数LP系统的三I算法与α-三I算法

给出了连续三角模族T_(p-L)及其伴随蕴涵算子族R_(p-L)的定义,并且给出了逻辑系统LP的定义;证明了逻辑系统LP与逻辑系统L的等价性,在此基础上给出了基于蕴涵算子族R_(p-L)的三I算法与α-三I算法。     

F-λ三角模的结构及其应用

讨论了一类左连续的三角模(即,F-λ三角模)的结构,基于F-λ三角模给出了几种新的三角模族及与之相伴随的蕴涵算子族。证明了用此类三角模所建立的逻辑系统正是WNM逻辑系统,讨论了NM,NMG,Godel及RDP三角模与F-λ三角模的关系,并由此出发证明了NM,NMG,Godel及RDP等逻辑系统都是WNM逻辑系统的扩张。     

基于三角模的直觉模糊综合评判模型

针对建立在∨（取大）－∧（取小）复合运算基础上的模糊综合评判模型只考虑突出因素而导致一些信息丢失的问题,构建了基于三角模算子的直觉模糊综合评判模型。三角模算子组兼顾了权重分配和单因素评价的隶属度,把各因素的作用均衡平均,并充分考虑其次要因素的作用,因此该模型可以使评判结果更具客观性和可信度。通过实例结果分析,验证了模型的正确性和有效性。     

分段对称反向高斯-约当消元法及其应用

求解变系数方程的高斯消元法与高斯-约当消元法计算原理类似、问题相近,但前者计算速度高于后者.提出分段对称反向高斯-约当消元法,其中包括根据系数矩阵结构特点构成特殊增广阵,以展示和应用元素的变化规律,并分段对上下三角元素消元以大大提高计算效率.对矩阵下三角元素正向消元及对称计算可简化所有下三角元素计算,而对上三角元素反向消元可再省略所有上三角元素计算,而取倒后的对角元素作为规格化因子可大大减少除法计算.根据单位矩阵结构特点,对其规格化或对系数矩阵上下三角元素消元时均仅计算部分对角元素和下三角元素可进一步提高计算效率.所有元素均用四角规则计算而无需计算公式以简化计算和编程.新方法大大减少了高斯-约当消元法中元素的计算,且原理简单、易于编程,可快速求解各种变系数方程,还可利用元素对称性求解常系数的节点阻抗矩阵.与高斯消元法和高斯-约当消元法相比,新方法计算速度大大提高.     

基于加权犹豫Frank几何算法的决策模型

加权犹豫模糊集是一种广义的犹豫模糊集,其可以更准确和全面地刻画决策信息。而Frank三角模运算能够挖掘多个输入参数值间的相互关系。基于Frank三角模思想,在加权犹豫模糊环境下,提出了一种加权犹豫Frank几何平均算法的群决策模型。首先,运用Frank三角模定义了加权犹豫模糊基本运算法则,并构建了新的得分函数;接着,提出了加权犹豫Frank几何平均（WHFGA）算子,分析了WHFGA算子关于参数[r]的相关性质;最后,基于提出的WHFGA算子,建立了加权犹豫模糊多属性决策模型,并通过算例进行分析。实验结果表明,WHFGA算子具有良好的内在一致性。     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。     

How do children do mathematics with LOGO?

Abstract  This paper considers some results of a study designed to investigate the kinds of mathematical activity undertaken by children (aged between 8 and 11) as they learned to program in LOGO. A model of learning modes is proposed, which attempts to describe the ways in which children used and acquired understanding of the programming/mathematical concepts involved. The remainder of the paper is concerned with discussing the validity and limitations of the model, and its implications for further research and curriculum development.