CUSTOMER EQUITY： MAKING MARKETING STRATEGY FINANCIALLY ACCOUNTABLE

1. Introduction The long-term value of a firm is largelydetermined by the value of the company’scustomer relationships, which result in thefirm’s ‘customer equity’ (Blattberg andDeighton 1996), defined by Rust, Lemon andZeithaml (2000, p.4…     

Forced Oscillations of a Class of Nonlinear Dispersive Wave Equations and their Stability

It has been observed in laboratory experiments that when nonlinear dispersive waves are forced periodically from one end of undisturbed stretch of the medium of propagation, the signal eventually becomes temporally periodic at each spatial point. The observation has been confirmed mathematically in the context of the damped Korteweg-de Vries （KdV） equation and the damped Benjamin-Bona-Mahony （BBM） equation. In this paper we intend to show the same results hold for the pure KdV equation （without the damping terms） posed on a finite domain. Consideration is given to the initial-boundary-value problem {ut＋ux＋uux＋uxxx=0, u（x,0）=φ（x）, 0〈x〈1, t〉0,u（0,t）=h（t）, u（1,t） = 0, ux（1,t） = 0, t〉0.It is shown that if the boundary forcing h is periodic with small ampitude, then the small amplitude solution u of （＊） becomes eventually time-periodic. Viewing （＊） （without the initial condition） as an infinite-dimensional dynamical system in the Hilbert space L^2（0, 1）, we also demonstrate that for a given periodic boundary forcing with small amplitude, the system （＊） admits a （locally） unique limit cycle, or forced oscillation, which is locally exponentially stable. A list of open problems are included for the interested readers to conduct further investigations.     

Web Services应用在CORBA环境中的实现原理与方法

针对在CORBA环境下使用Web Services时存在的问题,通过对分布式网络环境下的Web Services与CORBA的链接机制的分析,将Web Services作为建立在CORBA中间件之上的中间件,设计了Web Services与CORBA的双层中间件架构的链接模型,从而解决了广域网络用户与子网络中的CORBA对象的通信和互操作问题,同时提出了Web Services在CORBA中的应用方法,并对其中的XML数据封装等部分的实现和信息交互程序流程等关键问题进行了研究,最后给出在CORBA环境下的多级电力监控网络的Web应用实例。     

A COMPARATIVE STUDY OF DATA MINING METHODS IN CONSUMER LOANS CREDIT SCORING MANAGEMENT

1. Introduction Data mining (DM), sometimes referred to as knowledge discovery in database (KDD), is a systematic approach to find underlying patterns, trends, and relationships buried in data. Data mining has drawn much attention from bothresearchers and practitioners due to its wide applications in crucial business decisions. Basically, the research on DM can be classified into two categories: methodologies and technologies. According to Curt (1995), the technology part of DM consists of…     

EcoLiteracy and MetaResponsibility: ‘Steps to an Ecology of Mind’

For 25 years the Monash Graduate School of Environmental Science has attempted to teach a critical epistemology as core to its graduate programs. The idea is to provide a complement to the Cartesian world view its students bring with them. It provides a capacity to analyse for the interpretive models upon which phenomena of concern are based and with these models in mind to propose strategies for acting “metaresponsibly” in environment. The intellectual basis of this approach is developed and then applied to a range of current issues. An unusual and liberating set of responses is generated.The title of the seminal work by Gregory Bateson (Bantam, 1973). In the early years of the Monash program in systems thinking, this work and his last, Mind & Nature: A Necessary Unity (Bantam, 1980), were primary references.     

A general iterative method of fixed points for equilibrium problems and optimization problems

The purpose of this paper is to present a general iterative scheme as below:

R&R Analysis for Measurement System Using Moving Range

In order to control and continuous improve a production process,a good measurement system is essential.The assessment of a measurement system is known as a gauge repeatability and reproducibility (R&R) analysis,In this paper,the traditional method,analysis of variance(ANOVA),is reviewed and some drawbacks are pointed out.Then a new approach is introduced to estimate R&R.Is the last part,an example is presented to show the efficiency of this approach and to demonstrate its application for front-line operation.     

How Systemic Inquiry Releases Citizen Knowledge to Reform Schools: Community Scorecard Case Studies

Despite the relevance of systemic practice for repairing broken public systems, documented instances where it empowers marginalised groups en masse to be action researchers are rare. Public school systems that fail to educate millions of pupils are ripe for systemic inquiry. Using evidence, this article identifies conditions under which such inquiry fosters school system accountability and increases pupil learning. By tracing the emergence of a type of community scorecard practice called Citizen Voice and Action (CV&A), it explains how and why marginalised groups use CV&A’s systems-enhanced participatory research to engage with and reform unresponsive public systems. It also shows how soft systems thinking and further action research enhanced scorecard methodology. Brief case studies of CV&A use in Ugandan primary schools illustrate and explain how communities reform schools by using CV&A to systematically foster accountability. Discussion identifies how processes free them to create and use systemic knowledge. This theorising helps explain conditions under which systemic inquiry into school and other public systems is being generalised and scaled up.     

An SEIRS epidemic model with two delays and pulse vaccination*

Pulse vaccination is an effective and important strategy to eradicate an infectious disease. The authors investigate an SEIRS epidemic model with two delays and pulse vaccination. By using the discrete dynamical system determined by stroboscopic map, the authors obtain that the infectious population dies out if R△ 〈 1, and the infectious population is uniformly persistent if R^△ 〉 1. The results indicate that a short period of pulse vaccination or a large pulse vaccination rate is a sufficient condition to eradicate the disease.     

MULTILATERAL COMPARISON ON CHINESE MANUFACTURING＇S INTERNATIONAL COMPETITIVENESS

This paper analyses Chinese manufacturing performance from a multilateral perspective in 1980–2004. The PPPs, relative price levels, labor productivity and ULCs in multilateral comparison are used to explore Chinese manufacturing competitiveness. The PPPs are based on the benchmark year 1997. These results are compared to the previous estimates based on the 1987 benchmark. The findings are as follows: the PPPs derived by the different approaches in the base year 1997 in Chinese manufacturing are approximately 3.7 yuan/international $. Since the middle 1980s, China’s relative price level has been the lowest among all five countries and declined during the period of time. Its ULC has also been declining with some fluctuation. In the 1980s, there was “no catch-up rapid growth” in its labor productivity. However, after 1992, a beginning has been made with catch up distinctly, though from a very low level. This work was supported by the National Natural Science Foundation of China under Grant 70173029, 70571004 and 70531010. Ruoen Ren Professor of School of Economics & Management in Beihang University received Ph.D. in Economics in Renmin University of China in 1987. As one who enjoys the Government Special Allowance, he specializes in the study of international competitiveness, macroeconomics analysis, input-output table research, and credit risk management etc. His primary academic achievements are as follows: ICP in China, ICOP in China, KLEMS in China, Credit risk management in China commercial bank. In addition to his teaching and research at school, he is a chief economist in China Development Bank, a member in Science & Technical committee in Ministry of Education, and an executive director in China’s Input-output Association, etc. Haitao Zheng Doctorial candidate of School of Economics & Management in Beihang University, majors in the study on international competitiveness and insurance actuary. Meanwhile, he is an Associate of Society of Chinese Actuary.     

计算网格及其在虚拟样机协同环境中的应用探讨

网格技术对分散资源进行定位、分配、收集、协同和利用,并为人机交互提供不同资源,简要介绍了当前网格技术的发展与应用状况。Globus项目是目前国际上最有影响的网格计算项目之一,在Globus2.0软件包的基础上搭建了一个原型系统,并探讨了Globus对在虚拟样机分布式协同建模/仿真环境中的对计算能力的支撑应用。在新发布的采用OGSI(Open Grid Services Infrastructure)的3.0版本基础上进行了网格服务的开发,为在网格环境中各种仿真资源的进一步共享奠定了基础。     

Knowing Wuli,Sensing Shili,Caring for Renli: Methodology of the WSR Approach

This paper presents an outline of an Oriental systems methodology: the Wuli Shili Renli approach (WSR). The basic theme of WSR contends that wuli (regularities in objective existence), shili (ways of seeing and doing), and renli (patterns underlying human relations) constitute a differentiated whole that conditions systems projects. WSR suggests that we should design and employ appropriate methods to address and tackle wuli shili and renli elements in a theoretically informed and systemic way. The background, philosophy, process, principles, and some practical applications of the methodology are preliminarily outlined.     

基于Web服务的分布式RTI设计与实现

采用HLA(High Level Architecture)的技术标准,可以将单个仿真应用或者模型连接起来组成一个大型的仿真应用.RTI(Run-Time Infrastructure)是HLA的程序实现.现有的RTI大多采用集中式的管理结构,当仿真节点数量增加、节点间进行频繁的数据交换时,仿真性能可能不具备容错能力.提出基于Web服务(Web Services)的RTI设计思想,设计策略中不仅解决了上述问题,而且解决了Web服务额外带来的管理和调度问题,并对一些关键问题提供了解决方案.最后通过实际测试证明了这种方案的可行性.     

Minimum Hausdorff distance under rigid motions and comparison of protein structures

Hausdorff distance between two compact sets, defined as the maximum distance from a point of one set to another set, has many application in computer science. It is a good measure for the similarity of two sets. This paper proves that the shape distance between two compact sets in R ⁿ defined by minimum Hausdorff distance under rigid motions is a distance. The authors introduce similarity comparison problems in protein science, and propose that this measure may have good application to comparison of protein structure as well. For calculation of this distance, the authors give one dimensional formulas for problems (2, n), (3, 3), and (3, 4). These formulas can reduce time needed for solving these problems. The authors did some numerical experiments for (2, n). On these sets of data, this formula can reduce time needed to one fifteenth of the best algorithms known on average. As n increases, it would save more time.     

An Adjusted Gray Map Technique for Constructing Large Four-Level Uniform Designs

A uniform experimental design (UED) is an extremely used powerful and efficient methodology for designing experiments with high-dimensional inputs, limited resources and unknown underlying models. A UED enjoys the following two significant advantages: (i) It is a robust design, since it does not require to specify a model before experimenters conduct their experiments; and (ii) it provides uniformly scatter design points in the experimental domain, thus it gives a good representation of this domain with fewer experimental trials (runs). Many real-life experiments involve hundreds or thousands of active factors and thus large UEDs are needed. Constructing large UEDs using the existing techniques is an NP-hard problem, an extremely time-consuming heuristic search process and a satisfactory result is not guaranteed. This paper presents a new effective and easy technique, adjusted Gray map technique (AGMT), for constructing (nearly) UEDs with large numbers of four-level factors and runs by converting designs with s two-level factors and n runs to (nearly) UEDs with 2^t?1s four-level factors and 2^tn runs for any t ≥ 0 using two simple transformation functions. Theoretical justifications for the uniformity of the resulting four-level designs are given, which provide some necessary and/or sufficient conditions for obtaining (nearly) uniform four-level designs. The results show that the AGMT is much easier and better than the existing widely used techniques and it can be effectively used to simply generate new recommended large (nearly) UEDs with four-level factors.

     

The Ore-Sato Theorem and Shift Exponents in the q-Difference Case

The authors translate the main results in the paper entitled "Multiplicative Decomposition of Multivariate q-Hypergeometric Terms" from Chinese into English. The paper is written by Shaoshi Chen, Ruyong Feng, Guofeng Fu and Jing Kang, and published in Journal of Mathematics and Systems Science, 32(8), 1019–1032, 2012. Some minor simpli?cation and modi?cation are made during the translation. Based on the results in the above paper, a special form is derived for q-shift exponents appearing in the q-shift quotients of a q-hypergeometric term.     

EXTENDED CLUSTERING COEFFICIENTS：GENERALIZATION OF CLUSTERING COEFFICIENTS IN SMALL-WORLD NETWORKS

The clustering coefficient C of a network, which is a measure of direct connectivity between neighbors of the various nodes, ranges from 0 （for no connectivity） to 1 （for full connectivity）. We define extended clustering coefficients C（h） of a small-world network based on nodes that are at distance h from a source node, thus generalizing distance-1 neighborhoods employed in computing the ordinary clustering coefficient C = C（1）. Based on known results about the distance distribution Pδ（h） in a network, that is, the probability that a randomly chosen pair of vertices have distance h, we derive and experimentally validate the law Pδ（h）C（h） ≤ c log N / N, where c is a small constant that seldom exceeds 1. This result is significant because it shows that the product Pδ（h）C（h） is upper-bounded by a value that is considerably smaller than the product of maximum values for Pδ（h） and C（h）. Extended clustering coefficients and laws that govern them offer new insights into the structure of small-world networks and open up avenues for further exploration of their properties.     

Two-agent Pareto optimal cooperative investment in incomplete market: An equivalent characterization

This paper studies the following cooperative investment game with two agents. At the start of the game, both the agents’ capital are collected. The total capital are then invested according to a certain trading strategy. At a certain time T ₀ one agent quits the cooperation and they divide the wealth among themselves. During the remaining period [T ₀, T], the other agent invests his/her capital following a possibly different trading strategy. By stochastic optimization method combined with the theory of Backward Stochastic Differential Equations (BSDEs, for short), we give an equivalent characterization of the Pareto optimal cooperative strategies.     

Data crystallization applied for designing new products

It is only the observable part of the real world that can be stored in data. For such incomplete and ill-structured data, data crystallizing aims at presenting the hidden structure among events including unobservable events. This is realized by data crystallization, where dummy items, corresponding to potential existence ofunobservable events, are inserted to the given data. These dummy items and their relations with observable events are visualized by applying KeyGraph to the data with dummy items, like the crystallization of snow where dusts are involved in the formation of crystallization of water molecules. For tuning the granularity level of structure to be visualized, the tool of data crystallization is integrated with human＇s process of understanding significant scenarios in the real world. This basic method is expected to be applicable for various real world domains where previous methods of chance-discovery lead human to successful decision making. In this paper, we apply the data crystallization with human-interactive annealing （DCHA） to the design of products in a real company. The results show its effect to industrial decision making.     

Many-server queues with customer abandonment: A survey of diffusion and fluid approximations

The performance of a call center is sensitive to customer abandonment.In this survey paper,we focus on G/GI/ n + GI parallel-server queues that serve as a building block to model call center operations.Such a queue has a general arrival process(the G ),independent and identically distributed(iid) service times with a general distribution(the first GI),and iid patience times with a general distribution(the +GI).Following the square-root safety staffing rule,this queue can be operated in the quality- and efficiency-driven(QED) regime,which is characterized by large customer volume,the waiting times being a fraction of the service times,only a small fraction of customers abandoning the system,and high server utilization.Operational efficiency is the central target in a system whose staffing costs dominate other expenses.If a moderate fraction of customer abandonment is allowed,such a system should be operated in an overloaded regime known as the efficiency-driven (ED) regime.We survey recent results on the many-server queues that are operated in the QED and ED regimes.These results include the performance insensitivity to patience time distributions and diffusion and fluid approximate models as practical tools for performance analysis.