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16 Resources for

variability

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Project Planning, Uncertainty Analysis And Critical Chain Management
Critical Chain Management is a relative new way of handling the variability in project schedules. The clue is to establish a chain of critical activities and chains of non-critical activities. In the chains are connected buffers to take care of uncertainty in the time plan. The management consists in deciding...
Tags: buffer, variability, analysis
White papers 2007-03-05
Analysis Of The Bullwhip Effect In Supply Chains
An important phenomenon in supply chain management, known as the bullwhip effect, suggests that demand variability increases as one moves up a supply chain. This paper examines the influence of different replenishment policies on the occurrence of the bullwhip effect. The paper demonstrates that certain replenishment policies can in themselves...
Tags: Supply chain management (SCM), variability, supply chain, SCM, analysis
White papers 2006-02-20
States' Control of Prescription Drug Spending: A Heterogeneous Approach
In an effort to balance Medicaid budgets, states use prescription drug cost containment tools in unique ways and in varying combinations. The paper reports on the variability in state-level strategies to control the cost of prescription drugs and describes broad state-to-state differences in per beneficiary spending on drugs. This heterogeneity...
Tags: HEALTHCARE, Project HOPE, variability, prescription drug, Medicaid, Medicare, strategy, tool
White papers 2005-08-01
The Application Of A Six Sigma Methodology To Military Supply Chain Processes
This paper explains the findings of an investigation into supply chain process variability in the UK Defence supply chain. The study's objectives were two-fold: to investigate the nature and causes of variability in the Defence supply chain; and to ascertain whether a six sigma methodology could be applied usefully in...
Tags: Supply chain management (SCM), TQM/Six Sigma/ISO 9000, Process improvement, Cranfield University, variability, Six Sigma, supply chain, data capture, action plan, performance
White papers 2005-06-19
MoSes Modeller: Industry-Specific Applications, Case Studies and News
Tillinghast Software Solutions has improved its property and casualty financial modeling tool - the Advanced Financial Model AFM - for MoSes version 5. With these changes, the modeler can measure the effect of several additional sources of risk and can capture more of the subtle interactions between them. Some examples...
Tags: Towers Perrin, Variability, Industry, Modeling, Research & Development, Financial Accounting, Business Operations, Finance
White papers 2005-06-01
Improving the Resolution of Gridded-Hourly Mobile Emissions: Incorporating Spatial Variability and Hangling Missing Data
To more accurately predict hourly running stabilized link volumes for emissions modeling, a new method was recently developed that disaggregates the period-based model link volumes into hourly volumes using observed traffic count data and multivariate multiple regression MMR. This paper examines the MMR methodology with clustering and classification analyses to...
Tags: Reed Elsevier Inc., variability, clustering
White papers 2005-02-14
Simultaneous Truth and Performance Level Estimation (STAPLE): An Algorithm for the Validation of Image Segmentation
Characterizing the performance of image segmentation approaches has been a persistent challenge. Performance analysis is important since segmentation algorithms often have limited accuracy and precision. Interactive drawing of the desired segmentation by human raters has often been the only acceptable approach, and yet suffers from intra-rater and inter-rater variability. Automated...
Tags: Engineering, IEEE, segmentation, variability, algorithm, performance
White papers 2004-07-01
Irreversible Investment Under Interest Rate Variability: New Results
This paper studies the impact of interest rate and revenue variability on the decision to carry out an irreversible investment project. Given the generality of the considered valuation problem, it first provides a thorough mathematical characterization of the problem and develops some new results. Contrary to what previous literature has...
Tags: Financial Planning, Financial services, interest rate, variability, investment, valuation
White papers 2003-12-11
Investment, Valuation, And Growth Options
From the executive summary: 'The presence of growth options in the value of firm generates variability in firm value that is not driven by current cash flows. The variability diminishes the correlation between investment, while maintaining a positive correlation between investment and cash flow. The investing planning model suggests that...
Tags: Operational accounting, National Bureau of Economic Research, cash flow, variability, investment, volatility, valuation
White papers 2003-05-01
Trade Costs, Market Integration, And Macroeconomic Volatility
This paper examines the effects of trade costs on macroeconomic volatility. It first constructs a dynamic, two-country general equilibrium model, where the degree of market integration depends directly on trade costs (transport costs, tariffs, etc.). The model is an extension of Obstfeld and Rogoff (1995). Naturally, a reduction in trade...
Tags: Investment, Free trade, IMF, volatility, variability, integration, tariff, income
White papers 2003-03-01
Estimating the Natural Rate of Interest: A SVAR Approach
This article estimates the historical time series of the natural rate of interest using a structural vector autoregressive model. This method returns plausible results and thus seems to be well designed for the estimation of the natural rate of interest. It shows that the natural rate exhibits quite substantial variability...
Tags: Financial Planning, variability, interest rate
White papers 2003-01-10
Validation of Image Segmentation and Expert Quality With an Expectation-Maximization Algorithm
Characterizing the performance of image segmentation approaches has been a persistent challenge. Performance analysis is important since segmentation algorithms often have limited accuracy and precision. Interactive drawing of the desired segmentation by domain experts has often been the only acceptable approach, and yet suffers from intra-expert and inter-expert variability. Automated...
Tags: Engineering, variability, segmentation, algorithm, performance
White papers 2002-10-24
Performance of Motion-Resistant Pulse Oximeters in Tracking Neonatal Heart Rate Variability
Heart rate variability is routinely assessed in acutely ill neonates. ECG monitors have been the source of this parameter but a robust and responsive pulse oximetry pulse rate could suffice. In the presence of motion and low perfusion, older pulse oximeters can display erroneous pulse rate values. Although the newer...
Tags: Performance management, Masimo, variability, performance, monitor
White papers 2002-04-25
Quantifying Simulation Output Variability Using Confidence Intervals and Statistical Process Control
Two types of variability can occur in model output: variability between replications and variability within each replication. The objective of the model combined with the type of output variability determines which tool is more appropriate for output analysis. Many output analysis techniques are used to translate simulation model results into...
Tags: PRODUCTIVITY, Corning Inc., variability, replication, analysis, tool
White papers 2001-11-14
Enterprise Risk Management
Enterprise Risk Management ERM requires an understanding of the potential sources of variability in future business outcomes, and an ability to take informed business decisions on this basis. Article explains that the quality of business decisions and processes will be enhanced through greater quantitative and analytical rigour and the communication...
Tags: PricewaterhouseCoopers Consulting, enterprise risk management, appetite, allocation
White papers 2001-10-08
Comparing Probabilistic and Fuzzy Set Approaches for Designing in the Presence of Uncertainty
Probabilistic models and fuzzy set models describe different aspects of uncertainty. Probabilistic models primarily describe random variability in parameters. In engineering system safety, examples are variability in material properties, geometrical dimensions, or wind loads. In contrast, fuzzy set models of uncertainty primarily describe vagueness, such as vagueness in the definition...
Tags: Virginia Polytechnic Institute, variability
White papers 2000-08-07

Additional Resources

Nielsen Reports on Consumer Goods Categories That Are Most Immune, Most Vulnerable to Recession
FOOD AND BEVERAGE CLOSE-UP-8 June 2009-Nielsen Reports on Consumer Goods Categories That Are Most Immune, Most Vulnerable to RecessionC2008 - CloseUpMedia - newsdesk@closeupmedia.com As the economic downturn causes consumers to reprioritize their spending habits and forces consumer packaged goods manufacturers and retailers to reevaluate their consumer marketing strategies,...
Articles 2009-06-08
Comparative analysis of three user equilibrium models under stochastic demand
Recent empirical studies on the value of time and reliability reveal that travel time variability plays an important role on travelers' route choice decision process. It can be considered as a risk to travelers making a trip. Therefore, travelers are not only interested in saving their travel time but also...
Articles 2008-09-22
Bombardier to Start Maintenance Operations on 45 New High Speed Trains in Spain
Bombardier Transportation, in consortium with Talgo, has been awarded a 14-year contract with RENFE, the Spanish National Rail Operator for the maintenance of 45 AVE S-130 high speed trains. Maintenance activities will be carried out until 2022 at RENFE's depots in Santa Catalina and Fuencarral, both in Madrid. Bombardier Transportation's...
Articles 2008-07-17
MBI Technology Introduces Circular-Type intarsia Knitting Machine to the Global Market
SEOUL, South Korea -- MBI Technology Co., Ltd, a global manufacturer of intarsia sweater knitting machines, announced today that they have developed a new intarsia knitting machine for intarsia sweaters with the maximum 42 color change in single course. The new intarsia knitting machine is named MBI-S1342 and will be...
Articles 2008-07-16
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