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Technology trends in econometric energy models: Ignorance or information

Boyd, G.; Kokkelenberg, E.; Ross, M. - 2008

Simple time trend variables in factor demand models can be statistically powerful variables, but may tell the researcher very little. Even more complex specification of technical change, e.g. factor biased, are still the economentrician's measure of ignorance'' about the shifts that occur in the...

Persistent link: https://www.econbiz.de/10009435383

The estimation of parameters in nonlinear, implicit measurement error models with experiment-wide measurements

Anderson, K.K. - 2008

Measurement error modeling is a statistical approach to the estimation of unknown model parameters which takes into account the measurement errors in all of the data. Approaches which ignore the measurement errors in so-called independent variables may yield inferior estimates of unknown model...

Persistent link: https://www.econbiz.de/10009435461

Minimum risk trigger indices

Tingey, F.H. - 2008

A viable safeguards system includes among other things the development and use of indices which trigger various courses of action. The usual limit of error calculation provides such an index. The classical approach is one of constructing tests which, under certain assumptions, make the...

Persistent link: https://www.econbiz.de/10009435678

Forecasting urban highway travel for year 2005

Miaou, Shaw-Pin; Rathi, A.K.; Southworth, F.; Greene, D.L. - 2008

As part of a study aimed at estimating suburban highway needs for year 2005, models were developed for forecasting daily vehicle miles of travel (DVMT) for urban areas and its distribution by highway functional class, urban location, and urban area size. A regression model combining both time...

Persistent link: https://www.econbiz.de/10009435975

Parameter estimation techniques and uncertainty in ground water flow model predictions

Zimmerman, D.A.; Davis, P.A. - 2008

Quantification of uncertainty in predictions of nuclear waste repository performance is a requirement of Nuclear Regulatory Commission regulations governing the licensing of proposed geologic repositories for high-level radioactive waste disposal. One of the major uncertainties in these...

Persistent link: https://www.econbiz.de/10009436267

Uncertainty vs. Interindividual variability

Bogen, K.T. - 2008

Distinct treatment of uncertainty and interindividual variability in variates used to model risk ensures that quantitative assessments of these attributes in modeled risk are maximally relevant to potential regulatory concerns. For example, such a distinction is required for quantitative...

Persistent link: https://www.econbiz.de/10009436588

1991 Annual report on scientific programs: A broad research program on the sciences of complexity

2008

1991 was continued rapid growth for the Santa Fe Institute (SFI) as it broadened its interdisciplinary research into the organization, evolution and operation of complex systems and sought deeply the principles underlying their dynamic behavior. Research on complex systems--the focus of work at...

Persistent link: https://www.econbiz.de/10009436710

Treaty verification with an uncertain partner

Weissenberger, S. - 2008

A simple model is used to analyze the performance of a system for verifying compliance with an arms control treaty. Blue and Red are partners in to a treaty. Blue prefers to comply, but is uncertain whether Red similarly prefers compliance (in the absence of threatened violation detection)....

Persistent link: https://www.econbiz.de/10009436809

Poisson type models and descriptive statistics of computer network information flows

Downing, D.; Fedorov, V.; Dunigan, T.; Batsell, S. - 2009

analysis. Consequently the authors try to show that some behavioral patterns of descriptive statistics which are typical for … expected behavior of the sample covariance functions. Matching the images of these two descriptive statistics allows them to … infer the presence of trends or double stochasticity in analyzed time series. They considered only statistics which are …

Persistent link: https://www.econbiz.de/10009437260