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- Where have all the iPhones gone?
- Called the "Mystery of the Missing iPhones," the disparity between Apple's reported sales of 3.7 million units and AT&T's reports of 2 million activations last year leave industry analysts doing the math. Where are the other 1.7 million iPhones? The uncertainty has contributed to Apple's stock...
- Tags: Apple iPhone, Uncertainty, Phone, AT&T Corp., Apple Inc., Telecom & Utilities, Tricia Liebert
- Blog posts 2008-01-29
- Quality of Spatial Data for e-Government From an Ontological View
- Discussion on quality of spatial data is traditionally separated in different groups. Data quality mainly covers the observation process and the process of data manipulation. Uncertainty describes the problems of inaccurate boundaries between different classes. Usability concentrates on the view of the data user and tries to answer the question...
- Tags: Uncertainty, Vienna University, E-government, Government
- White papers 2006-04-20
- Great Budget CRIMS Elite (zip)
- Great Budget CRIMS Elite brings accurate forecasting to everyone. Until now it was prohibitively expensive to accurately calculate leading edge project costs because of uncertainty in evolving technologies. CRIMS is a solution to identify. CRIMS, Cost/Risk Identification and Management Systems were once the domain of budget and risk experts and...
- Tags: Uncertainty, Spreadsheet, CRIMS, CRIMS Elite, Productivity
- Software downloads 2005-06-16
- Uncertain Data Mining: An Example in Clustering Location Data
- Data uncertainty is an inherent property in various applications due to reasons such as outdated sources or imprecise measurement. When data mining techniques are applied to these data, their uncertainty has to be considered to obtain high quality results. The paper presents UK-means clustering, an algorithm that enhances the K-means...
- Tags: Algorithm, Uncertainty, Clustering, University Of Hong Kong, Data Uncertainty, Engineering, Data Mining, Enterprise Software, Software, Data Management
- White papers 2006-01-05
- Software Development's Cone of Uncertainty
- Software's Cone of Uncertainty is a model for understanding estimation uncertainty in software projects. Early in a project, specific details of the nature of the software to be built, details of specific requirements, details of the solution, project plan, staffing, and other project variables are unclear. Estimates inherently contain high...
- Tags: Software, Software Development, Uncertainty, Tools & Techniques, Management
- White papers 2008-08-25
Additional Resources
- Using Metadata to Link Uncertainty and Data Quality Assessments
- In this paper it is argued that the links between data quality reporting, metadata and subsequent assessments of data uncertainty need to be stronger. This builds on the ideas developed by Fisher (2003) who commented that data quality and uncertainty were like ships that pass in the night. Current data...
- Tags: Data Quality, Databases, Enterprise Software, Software, Data Management
- White papers 2006-03-06
- Safety Inventory Analysis: Why and How?
- Safety inventory protects against inventory uncertainty by ensuring there is enough product available to maintain desired service levels. Many factors contribute to inventory uncertainty, but three main elements give rise to the differences between planned inventory and actual inventory levels: demand deviations, supply deviations, and inventory accuracy. Traditionally, the analysis...
- Tags: Analysis, Safety Inventory, Inventory Uncertainty, Productivity
- White papers
- Safety Inventory Analysis: Why and How?
- Safety inventory protects against inventory uncertainty ensuring there is enough product available to maintain desired service levels. Many factors contribute to inventory uncertainty, but three main elements give rise to the differences between planned inventory and actual inventory levels: demand deviations, supply deviations, and inventory accuracy. Traditionally, the analysis of...
- Tags: Analysis, Safety Inventory, Inventory Uncertainty, Productivity
- White papers 2004-09-01
- Uncertain Data Mining: A New Research Direction
- Data uncertainty is often found in real-world applications due to reasons such as imprecise measurement, outdated sources, or sampling errors. Much research has been published in the area of managing data uncertainty in databases. This paper proposes that when data mining is performed on uncertain data, data uncertainty has to...
- Tags: University Of Hong Kong, Data Uncertainty, Data Mining, Business Intelligence, Marketing Research, Databases, Enterprise Software, Software, Data Management, Marketing
- White papers 2005-12-08
- A Novel Mechanism in MPLS Network Under Adversarial Uncertainty
- The advantage of Multi-Protocol Label Switching MPLS is its capability to route the packets through explicit paths. But the nodes in the paths may be possibly attacked by the adversarial uncertainty. Aiming at this problem in MPLS Network, this paper proposes a novel mechanism in MPLS network under adversarial uncertainty,...
- Tags: MPLS, Network Technology, Networking
- White papers 2007-05-01
- Probabilistic Ontologies for Efficient Resource Sharing in Semantic Web Services
- Service Oriented Architecture SOA is a key technology to support interoperability among data and processing resources. Semantic interoperability requires mapping between vocabularies of independently developed resources, a task fraught with uncertainty. Probabilistic ontologies enable representation of knowledge in domains characterized by uncertainty. As such, they promise to improve the quality...
- Tags: Ontology, Semantic Web, Strategy, Service-Oriented Architecture (SOA), Management, Web Services, Enterprise Software, Software
- White papers 2006-09-20
- Enpocket Powers Vodafone's MMS Stimulation Campaign
- Picture Messaging has the potential to drive big revenues for operators, but adoption of MMS at Vodafone had been slow. Research indicated that the key barriers to overcome included uncertainty of when/why to send an MMS, unsure when/how a picture adds value to an SMS, uncertainty around cost, and unsure...
- Tags: Vodafone Group Plc., MMS, Mobile, Picture Messaging, Mobile Marketing, Text Messaging/SMS/MMS, Advertising & Promotion, Cellular Phones, Consumer Electronics, Personal Technology, Online Communications, Marketing
- Case studies
- Cost-Optimized Transport Evolution - Smarter Solutions for Mobile Operators
- Mobile operators today are facing great unknowns as they try to plan transport for their mobile networks. There are many reasons for this uncertainty. The increased uncertainty about what will happen in the future can be dealt with by using a solution offering great scalability, which removes the risk of...
- Tags: Mobile Operator, Nokia Corp., Mobile, Network, Smarter Solutions, Advertising & Promotion, Manufacturing, Marketing
- White papers 2006-01-01
- Methods in Thought and Uncertainty
- blog rootCertaintyWe all are usually addressed by our name or title when someone else wants to speak to us either to get our attention or have a conversation. The title and name are not something we need to exist, it is just a label for others to identify us. Would you...
- Tags: deonsed@..., certainty
- Discussion threads 2005-05-29
- The VPN Conjecture Is True
- Robustness has become one of several paradigms used to address data uncertainty in optimization. While the input data may not be known perfectly, it assumes that each input comes from some known bounded region or universe of legal inputs. Robust optimization then seeks an optimal solution that is valid for...
- Tags: VPN, McGill University, Optimization, VPN Conjecture, Robustness, Networking
- White papers 2007-12-14
- From the OntoBayes Model to a Service Oriented Decision Support System
- The aim of this paper is to propose a service oriented decision support system based on an ontology-driven uncertainty model OntoBayes. OntoBayes consists of knowledge and decision model parts. The former is the integration of ontologies and Bayesian Networks while the latter can describe different decision models. OntoBayes gives a...
- Tags: Decision Support System, OntoBayes, Tools & Techniques, Databases, Management, Enterprise Software, Software, Data Management
- White papers 2006-08-25
- Optimal Design of Reliable Network Systems in Presence of Uncertainty
- In practice, network designs can be based on multiple choices of redundant configurations, and different available components which can be used to form links. More specifically, the reliability of a network system can be improved through redundancy allocation, or for a fixed network topology, by selection of highly reliable links...
- Tags: Network System, Network, Networking
- White papers 2005-06-01
- Estimation Risk, Market Efficiency, and the Predictability of Returns
- n asset pricing, estimation risk refers to investor uncertainty about the parameters of the return or cashflow process. We show that with estimation risk the observable properties of prices and returns can differ significantly from the properties perceived by rational investors. In particular, parameter uncertainty will tend to induce return...
- Tags: Asset management, estimation, National Bureau of Economic Research, predictability, investor, asset pricing, volatility, dividend, asset
- White papers 2000-05-01
- Investment in RFID: The 'Real Options' Approach
- This paper reviews the financial and business logic behind investing in RFID. Managers the world over are facing increasing uncertainty while taking complex strategic decisions, having an enduring impact on organization profitability and sustained growth. Usually, this type of uncertainty erodes real value when such decisions are evaluated using conventional...
- Tags: Investment, Patni Computer Systems Ltd., RFID, Wireless, Security, Biometrics
- White papers 2005-12-01
- Persuasively present security data with these visualization techniques
- Security is a complex topic that defies easy description. In fact, most information security professionals have no real idea how to "show security," either literally or figuratively. Yet even the most compelling data is worthless without an effective way of presenting it. In this sample chapter from...
- Tags: Technique, Addison-Wesley, Security
- Book chapters 2007-04-02
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