Results 161 to 170 of about 1,078,834 (211)

Empirical Modelling of Genetic Algorithms

Evolutionary Computation, 2001
This paper addresses the problem of reliably setting genetic algorithm parameters for consistent labelling problems. Genetic algorithm parameters are notoriously difficult to determine. This paper proposes a robust empirical framework, based on the analysis of factorial experiments.
Richard Myers, Edwin R. Hancock
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An Empirical Model of Household Arrears [PDF]

SSRN Electronic Journal, 2004
Household arrears on payment obligations are one of the most direct measures of household sector financial stress. This paper uses a time series approach to model two of the key components of aggregate UK household arrears: those on mortgages and credit cards.
John Whitley, Richard Windram, Prudence Cox   +2 more
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EMPIRICAL LIKELIHOOD FOR GARCH MODELS

Econometric Theory, 2006
Summary: This paper develops an empirical likelihood approach for regular generalized autoregressive conditional heteroskedasticity (GARCH) models and GARCH models with unit roots. For regular GARCH models, it is shown that the log empirical likelihood ratio statistic asymptotically follows a \(\chi^2\) distribution.
Chan, NH, Ling, SQ
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Symposium on Models in the Empirical Sciences: Models in the Empirical Sciences

1966
Publisher Summary In psychology and the social sciences, the word “model” is frequently used as a synonym for a formalized or semi-formalized theory. For example, Richard Stone's “Three Models of Economic Growth” are the three alternative theories for explaining the phenomena of economic growth expressed in mathematical form so that mathematical ...
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An empirical comparison of forgetting models

IEEE Transactions on Engineering Management, 2001
This paper presents a comparative study of several forgetting models. We compare the performance of these forgetting models in measuring the amount of forgetting following a break in an environment where learning and forgetting occur intermittently. Comparisons are made of the performance of each model with respect to empirical data from a procedural ...
David A. Nembhard, Napassavong Osothsilp
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An Empirical Investigation of the Modeling of Depression

Psychological Reports, 1978
To investigate the effects of viewing various films on affect, 200 volunteer subjects were assigned to 10 groups following a modified Solomon four-group design. Five groups received pretesting and five groups received no pretesting before being exposed to one of five treatments and follow-up testing 2 or 3 wk.
D, Abrams, G D, King
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An empirical test of the sociocybernetic model

Journal of Clinical Psychology, 1977
A theoretical"sociocybernetic" systems analysis model was tested empirically. Two independent groups completed a questionnaire that described their reactions to four hypothetical interpersonal situations. Half of the persons in each group described their reactions to a friend and used Likert scales to rate the unfavorable/favorableness of their (a ...
H W, Kunce, J T, Kunce
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Empirical models and Hill coefficients

Trends in Pharmacological Sciences, 2003
J.G. is grateful to Jordi Quintana for careful reading and criticisms. J.G. is a member of the EC Vascan 2000 Consortium (QLG1-1999-00084) and Grups de Recerca Consolidats de Catalunya (2001SGR 00193).
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The Empirical Content of the Roy Model

Econometrica, 1990
This paper clarifies and extends the classical Roy model of self selection and earnings inequality. The original Roy model, based on the assumption that log skills are normally distributed, is shown to imply that pursuit of comparative advantage in a free market reduces earnings inequality compared to the earnings distribution that would result if ...
Heckman, James J, Honore, Bo E
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An Empirical Model of Work Attendance

The Review of Economics and Statistics, 1981
T WO recent studies have indicated that on any given day about 3% to 4% of all workers do not report to their jobs. The Bureau of National Affairs (BNA) has reported absence data for a sample of several hundred establishments since January 1974. The median absence rate for the entire sample was 3.4% in 1974, 3.0% in 1975 and 1976, 2.8% in 1977, and 2.9%
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