Showing 1 - 10 of 1,667
In many applications of line intersect sampling, transects consist of multiple, connected segments in a prescribed … configuration. The relationship between the transect configuration and the selection probability of a population element is … illustrated and a consistent sampling protocol, applicable to populations composed of arbitrarily shaped elements, is proposed. It …
Persistent link: https://www.econbiz.de/10009429541
reformulated with respect to statistical properties of these objectives functions (e.g. probability of exceeding certain thresholds … of two components. Firstly advanced sampling techniques are employed in order to efficiently explore the dependence of … performance statistics with respect to the design variables. For that purpose we explore parametric and non-parametric (kernel …
Persistent link: https://www.econbiz.de/10009436326
The statistical variance of total project cost is usually estimated by means of Monte Carlo simulation on the assumption that exact analytic approaches are too difficult. This paper tests that assumption and shows that, contrary to expectations, the analytic solution is relatively...
Persistent link: https://www.econbiz.de/10009437452
As part of a study aimed at estimating suburban highway needs for year 2005, models were developed for forecasting … major findings from the forecasting and distribution models for urban highway travel in year 2005. 30 refs., 3 figs., 9 tabs. …
Persistent link: https://www.econbiz.de/10009435975
This paper examines evidence of predictability in Australian equities using both statistical and economic metrics of … significance. A probit-based predictive model is used to forecast the probability that the 1 month ahead excess market return will … economically significant degree of return predictability. A $A1 investment in the switching strategy (market) in January 1980 grows …
Persistent link: https://www.econbiz.de/10009448712
analyzing health series data and detecting anomalies: using forecasting methods to predict the next day's value, subtracting the … and analyze the performance of a variety of heuristic methods.Second, we describe improvements for the forecasting of … health data series. The application of weather as a predictor, cross-series covariates, and ensemble forecasting each provide …
Persistent link: https://www.econbiz.de/10009450964
We derive the statistical properties of the SNP densities of Gallant and Nychka (1987). We show that these densities, which are always positive, are more flexible than truncated Gram-Charlier expansions with positivity restrictions. We use the SNP densities for financial derivatives valuation....
Persistent link: https://www.econbiz.de/10012530160
The current study presents a statistical model for assessing the skill of fire danger indices and for forecasting the … index that incorporates satellite and surface observations to map fire potential at a national scale - in forecasting …
Persistent link: https://www.econbiz.de/10009429429
prediction intervals. Application of the mean response model (fixed-effects parameters only) to independent data indicated an …
Persistent link: https://www.econbiz.de/10009429515
BACKGROUND AND AIMS: The purpose of this study was to compare the relative accuracy of different thermal-germination models in predicting germination-time under constant-temperature conditions. Of specific interest was the assessment of shape assumptions associated with the cardinal-temperature...
Persistent link: https://www.econbiz.de/10009429558