# Modeling uncertainty

Xem 1-20 trên 67 kết quả Modeling uncertainty
• ### Financial Modeling with Crystal Ball and Excel Chapter 3

CHAPTER 3 Building a Crystal Ball Model Monte Carlo simulation is a tool for modeling uncertainty. Typically, we begin with a deterministic spreadsheet model of the situation we are analyzing, then use Crystal Ball to add stochastic assumptions to represent the most important sources of uncertainty.

• ### SIMULATING THE PHYSICAL WORLD Hierarchical Modeling from Quantum Mechanics to Fluid Dynamics

This book was conceived as a result of many years research with students and postdocs in molecular simulation, and shaped over several courses on the subject given at the University of Groningen, the Eidgen¨ossische Technische Hochschule (ETH) in Z¨urich, the University of Cambridge, UK, the University of Rome (La Sapienza), and the University of North Carolina at Chapel Hill, NC, USA.

• ### A National Strategy for Advancing Climate Modeling

Information about climate1 is used to make decisions every day. From farmers deciding which crops to plant next season to mayors in large cities deciding how to prepare for future heat waves, and from an insurance company assessing future flood risks to a national security planner assessing future conflict risks from the impacts of drought, users of climate information span a vast array of sectors in both the public and private spheres. Each of these communities has different needs for climate data, with different time horizons (see Box 1) and different tolerances for uncertainty...

• ### MANAGING DOWNSIDE RISK IN FINANCIAL MARKETS

This book is dedicated to the many students we have taught over the years, whose thought-provoking questions led us to rethink what we had learned as graduate students. For all such questioning minds, we offer the research efforts of scholars around the world who have come to the conclusion that uncertainty can be decomposed into a risk component and a reward component; that all uncertainty is not bad.

• ### The market for lemons quality uncertainty and mechanism

The market for lemons quality uncertainty and mechanism present about the model with automobiles as an example; example and application; counteracting institutions; conclusion of The market for lemons quality uncertainty and mechanism.

• ### Research " THE EFFECTS OF MACROECONOMIC UNCERTAINTY ON IRREVERSIBLE INVESTMENT "

THE EFFECTS OF MACROECONOMIC UNCERTAINTY ON IRREVERSIBLE INVESTMENT Peer group and, by extension, average student performance are endogenous to unobserved determinants of housing prices. One estimation strategy that accommodates this endogeneity is that taken by Bayer, McMillan, and Reuben (2002), who estimate a structural model for housing prices and community composition in San Francisco.

• ### Báo cáo khoa học: "Large-Scale Cross-Document Coreference Using Distributed Inference and Hierarchical Models "

Cross-document coreference, the task of grouping all the mentions of each entity in a document collection, arises in information extraction and automated knowledge base construction. For large collections, it is clearly impractical to consider all possible groupings of mentions into distinct entities.

• ### Volume 102 1997 uncertainty and dimensional calibration

Tham khảo tài liệu 'volume 102 1997 uncertainty and dimensional calibration', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

• ### Báo cáo khoa học: "Mixture Model POMDPs for Efﬁcient Handling of Uncertainty in Dialogue Management"

In spoken dialogue systems, Partially Observable Markov Decision Processes (POMDPs) provide a formal framework for making dialogue management decisions under uncertainty, but efﬁciency and interpretability considerations mean that most current statistical dialogue managers are only MDPs. These MDP systems encode uncertainty explicitly in a single state representation.

• ### Báo cáo khoa học: "Natural Language Generation as Planning Under Uncertainty for Spoken Dialogue Systems"

We present and evaluate a new model for Natural Language Generation (NLG) in Spoken Dialogue Systems, based on statistical planning, given noisy feedback from the current generation context (e.g. a user and a surface realiser). We study its use in a standard NLG problem: how to present information (in this case a set of search results) to users, given the complex tradeoffs between utterance length, amount of information conveyed, and cognitive load. We set these trade-offs by analysing existing MATCH data.

• ### Ebook A course in monetary economics - Sequential trade, money, and uncertainty: Part 2

(BQ) Part 2 book "A course in monetary economics - Sequential trade, money, and uncertainty" has contents: A monetary model, inventories and the business cycle, evidence from micro data, sequential international trade, endogenous information and externalities, search and contracts, the friedman rule in a ust model,...and other contents.

• ### Báo cáo khoa học: "TREATMENT OF LONG DISTANCE DEPENDENCIES IN LFG AND TAG: FUNCTIONAL UNCERTAINTY IN LFG IS A COROLLARY IN TAG"

In this paper the functional uncertainty machinery in L F G is compared with the treatment of long distance dependencies in TAG. It is shown that the functional uncertainty machinery is redundant in TAG, i.e.,what functional uncertainty accomplishes for L F G follows f~om the T A G formalism itself and some aspects of the linguistic theory instantiated in TAG. It is also shown that the analyses provided by the functional uncertainty machinery can be obtained without requiring power beyond mildly context-sensitive grammars.

• ### uncertainty and dimensional calibration Volume 102

Volume 102, Number 6, November–December 1997 Journal of Research of the National Institute of Standards and Technology [J. Res. Natl. Inst. Stand. Technol. 102, 647 (1997)] Uncertainty and Dimensional Calibrations Volume 102 Ted Doiron and John Stoup National Institute of Standards and Technology, Gaithersburg, MD 20899-0001 Number 6 The calculation of uncertainty for a measurement is an effort to set reasonable bounds for the measurement result according to standardized rules.

• ### Decision Support Systems: Chapter 4 - Modeling and Analysis

Decision Support Systems: Chapter 4 - Modeling and Analysis present about Modeling for DSS; Static and Dynamic models; Treating certainty, uncertainty; Influence diagrams; Modeling with spreadsheets; Decision Tables and Decision trees; MSS mathematical models; Search approaches.

Knowing that the plant parameters can vary within their lower and upper bounds, this parametric uncertainty is formulated as an additive perturbation in the transfer function matrix. It is important to note that the controller be designed with respect to worst case uncertainty for each λij. This can be achieved by performing an optimization procedure given by (61) for 200 frequencies. Here an element by element uncertainty bound model is used for the characterization of upper bound of the uncertainty matrix. Then wij , which satisfies (62) for each λij is given in matrix form as,...

• ### Semantic Web

Having lived with the World Wide Web for twenty years, surfing the Web becomes a way of our life that cannot be separated. From latest news, photo sharing, social activities, to research collaborations and even commercial activities and government affairs, almost all kinds of information are available and processible via the Web. While people are appreciating the great invention, the father of the Web, Sir Tim Berners-Lee, has started the plan for the next generation of the Web, the Semantic Web....

• ### Assessing Product Reliability

objective or subjective, when making decisions under uncertainty. This is especially true when the consequences of the decisions can have a significant impact, financial or otherwise. Most of us make everyday personal decisions this way, using an intuitive process based on our experience and subjective judgments. Mainstream statistical analysis, however, seeks objectivity by generally restricting the information used in an analysis to that obtained from a current set of clearly relevant data.

• ### AIR QUALITY ‐ MODELS AND APPLICATIONS

The most discussed effect of global warming is the increase of temperatures, although this increase will not be homogeneous through the seasons, with the winters expected to warm up significantly more than the summers. In addition, changes in precipitation are also expected that could lead to increase or decrease of rainfall, snowfall and other water-related events. Finally, a change in the frequency and intensity of storm events could be possible, although this is probably the most uncertain of the effects of global warming.

• ### Public Sector Accounting - An Interdisciplinary Field Involving Accounting, Economics, and Jurisprudence

For new information to be valuable it must, of course, actually be new information. If new cost estimation or accounting procedures simply confirm existing beliefs, they have little likelihood of contributing to changes in decision-making, and thus little likelihood of adding value. Environmental accounting techniques will be most valuable when they correct beliefs that are biased or when they focus on issues subject to high degrees of uncertainty. A focus in much of the environmental accounting literature is on the failure to quantify environmental benefits and costs.