PCS网络中一种改进的呼叫建立算法

PCS系统中,用户漫游到非归属VLR覆盖区被呼时,系统将产生大量信令开销和数据库访问开销。该文为移动用户被呼提出了一种改进的缓冲呼叫算法来降低网络信令开销与数据库访问负荷和呼叫建立时延,建立了一种模型来分析其相关性能。与传统呼叫算法相比,改进呼叫算法能极大降低系统开销,具有较强的可行性。     

Intelligent Procedures for Intra‐Day Updating of Call Center Agent Schedules

For nearly all call centers, agent schedules are typically created several days or weeks before the time that agents report to work. After schedules are created, call center resource managers receive additional information that can affect forecasted workload and resource availability. In particular, there is significant evidence, both among practitioners and in the research literature, suggesting that actual call arrival volumes early in a scheduling period (typically an individual day or week) can provide valuable information about the call arrival pattern later in the same scheduling period. In this paper, we develop a flexible and powerful heuristic framework for managers to make intra‐day resource adjustment decisions that take into account updated call forecasts, updated agent requirements, existing agent schedules, agents' schedule flexibility, and associated incremental labor costs. We demonstrate the value of this methodology in managing the trade‐off between labor costs and service levels to best meet variable rates of demand for service, using data from an actual call center.     

THE CARING DILEMMA IN MIDWIFERY

The caring dilemma, first described by Reverby in 1987, denotes the tension caused by being obliged to provide care without the right to determine how that care is to be provided. Such a dilemma is salient in the practice of midwifery based on a continuity of care model that has recently emerged or been implemented in various jurisdictions. Briefly, this model involves the provision of care by a single midwife or pair of midwives to a woman throughout her pregnancy, birth and post-natal period. Continuity of care necessitates that midwives be on call for significant lengths of time to ensure attendance at the woman's birth. It is the on-call nature of this form of midwifery work that most significantly poses a caring dilemma for midwives. In this paper, we trace both the structural and experiential aspects of the caring dilemma through an examination of midwifery in the Canadian province of Ontario. Our analysis reveals that despite being a salient feature of midwifery practice, some work structures can be created to mediate the caring dilemma experienced by midwives.

Le dilemme de la prise en charge, que Reverby a évoqué la première fois en 1987, dénote la tension que cause le fait d’être tenu d'offrir une prise en charge sans avoir le droit d’établir de quelle manière l'offrir. L'exemple des sages-femmes, dont la pratique repose sur un type de soin continu qui est récemment apparu ou qu'on vient de mettre sur pied dans diverses administrations, illustre très clairement ce dilemme. Pour résumer, ce modèle veut qu'une femme enceinte soit prise en charge pendant sa grossesse, à son accouchement et durant sa période postnatale par une ou deux sages-femmes. La continuité de la prise en charge oblige les sages-femmes à être sur appel durant des périodes prolongées pour que la femme qui accouche bénéficie de leur présence. Pour les sages-femmes, c'est la nature même de leur travail effectué sur appel qui engendre, de façon cruciale, le dilemme de la prise en charge. Dans cet article, nous abordons les aspects structurels et expérimentaux que représente le dilemme de la prise en charge par le biais d'une étude sur la pratique du métier de sage-femme dans la province canadienne de l'Ontario. Notre analyse révèle que, si le dilemme de la prise en charge est inhérent à la profession de sage-femme, il n'empêche que des structures professionnelles peuvent être mises en place pour en atténuer les aspects négatifs.     

Normal Deviation and Poisson Approximation of a Security Market by the Geometric Markov Renewal Processes

We consider the geometric Markov renewal processes (GMRP) as a model for a security market. Normal deviations of the geometric Markov renewal processes for ergodic averaging and double averaging schemes are derived. We introduce Poisson averaging scheme for the geometric Markov renewal processes. European call option pricing formulas for GMRP are presented.     

Bayesian,MLE, and GMM Estimation of a Spot Rate Model

ABSTRACT

We develop Markov chain Monte Carlo algorithms for estimating the parameters of the short-term interest rate model. Using Monte Carlo experiments we compare the Bayes estimators with the maximum likelihood and generalized method of moments estimators. We estimate the model using the Japanese overnight call rate data.     

A longitudinal test of the gender turnover model among U.S. House and Senate members

This study builds on previous research by examining the impact of gender when predicting roll call voting behavior in the U.S. House and the U.S. Senate over several recent congresses. In order to unearth gender effects, it employs a longitudinal design based on turnover in the membership of both the House and the Senate. Through a comparison of the voting records of members of Congress representing the same geographic territory it holds constituency constantly while allowing for gender and party to vary. It does so with models including dependent variables that measure roll call ideology and support for women's issues exhibited in the voting records of members in both institutions. The results show that male and female members in each chamber representing the same constituency amass virtually indistinguishable voting records on the liberal-conservative policy dimension. However, on votes dealing with issues of concern to women, female senators tend to be more supportive than the male senators they replace and male senators tend to be less supportive than the female senators they replace.     

Operations in the Service Industries: Introduction to the Special Issue

This special issue of Production and Operations Management offers a sample of ongoing research that focuses currently on the services industries. The articles selected cover a spectrum of application areas as well as methodologies.     

说提醒标记"你看"

在现代汉语中,"你看"可以充当提醒标记.它可独用表提醒,也可用来凸显因果关系和提醒状态、行为,其语用价值是提醒,一般地说,删去它在句法、语义上不会产生影响,但提醒的作用会随之消失.如果提醒的内容在说话人说出"你看"时是可以"看"到的,那么"看"可以重叠,"你"可以省略,反之则不可以.     

Six-sigma for improving Top-Box Customer Satisfaction score for a banking call centre

Six Sigma process improvement methodology has been accepted globally across the service industry. In past one decade, the application and success of Six Sigma in Services is remarkable across Information Technology organisations, Hospitality firms, Government, Healthcare firms and Banking & Financial Sector. The aim of this paper is to explore the role of Six Sigma within call centres where the metric based environment complements the application of Six Sigma for process improvements. The article establishes the literature for the need for Six Sigma in call centre environment elaborating on customer facing metrics in addition to internal performance measures and highlighting the advantages of Six Sigma. A case study is presented in the second part of the article to study the DMAIC project management approach of Six Sigma for improving the Top Box Customer Satisfaction score of a Banking call centre. The literature identifies the possible opportunities for improving the performance of call centre metrics using Six Sigma. The project case study presented as part of the paper delivered a saving of USD 0.27 million to the bank, and is a classic example of how Six Sigma can bring bottom-line impact to an organisation. The article is limited to elaborate the advantages of Six Sigma in call centre environment, emphasising on its need and its compatibility to go along successfully with change acceleration and project management processes. Managerial implications and lessons learned are discussed alongside the concluding notes.     

分数布朗运动下带违约风险的可转换债券定价

应用均衡定价方法,考虑股票价格和公司资产价值服从分数布朗运动以及存在公司违约风险情况下的可转债定价问题;建立相应的可转债定价模型,采用拟鞅定价方法,得出了欧式看涨期权的显式解,进而得出了可转债定价公式;最后利用数值算例进行分析,结论表明公司违约风险、股票价格和公司资产价格的长程关联性是可转债定价时不可忽略的因素。