Random Utility Models
Mostrando 1-12 de 12 artigos, teses e dissertações.
-
1. Tomografia de impulso para estimativa da densidade da madeira / Impulse tomography for wood density estimate
There are several techniques which use the passage of waves through wood to obtain information. Among them the tomography of trees is emphasized, reconstructing cross sections of trunk and branches. The impulse tomography is based on the timing of mechanical sound wave travelling between sensors attached to a cross section of the tree, to compute wave speed
Publicado em: 2010
-
2. Quality of the Internet sites: an application of the WebQual model in João Pessoa/PB hotels. / Qualidade dos sites na Internet: uma aplicação do modelo WebQual nos hotéis de João Pessoa/PB.
The quality evaluation of the internet sites is today, a topic of study of several researchers worldwide. Different models of sites analyses with diverse central points came up in the academy with focus which alternate themselves between the evaluation of the technological aspects and the quality measurement perceived by the user or consumer. In this researc
Publicado em: 2009
-
3. Função da probabilidade da seleção do recurso (RSPF) na seleção de habitat usando modelos de escolha discreta / Resource of selection probability function (RSPF ) the habitat selection using discrete choice models (DCM)
Em ecologia, o comportamento dos animais é freqüentemente estudado para entender melhor suas preferências por diferentes tipos de alimento e habitat. O presente trabalho esta relacionado a este tópico, dividindo-se em três capítulos. O primeiro capitulo refere-se à estimação da função da probabilidade da seleção de recurso (RSPF) comparado com u
Publicado em: 2009
-
4. Models for estimation of the optimal investment timing in deep-waters projects / Modelos para estimativa do momento otimo de investimento em projetos em aguas profundas utilizando opções reais
This work proposes two Real Options models for economic evaluation of E&P projects located in deep-water. The models consider the effects of uncertainties related to the oil price and the process of technological evolution. These models are useful for undeveloped reserves of heavy oil in deep-water that depict a great level of uncertainty, as the available t
Publicado em: 2007
-
5. EFFECTS OF THE FIRMS SOCIAL INVOLVEMENT ON CONSUMER BEHAVIOR
Firms social involvement is common practice in the modern world. The issue has received intense attention in general and academic literature. In particular, the management literature has focused on corporate social responsibility. Societal obligations, altruistic behavior, and economic motivations have been shown to motivate social involvement. Among economi
Publicado em: 1998
-
6. Metodos estatisticos para localização otima de estações de mensuração de poluição em rede fixa
Optimal experiments designs are used in this work to define the optimal siting of a network of new pollution-measuring stations, to be contracted or expanded. Firstly we consider a regression model (called Model A) to represent the relationship between measured concentrations and geographic coordinates. Model A shows itself as inadequate for environmental da
Publicado em: 1996
-
7. Irregularity, volatility, risk, and financial market time series
The need to assess subtle, potentially exploitable changes in serial structure is paramount in the analysis of financial data. Herein, we demonstrate the utility of approximate entropy (ApEn), a model-independent measure of sequential irregularity, toward this goal, by several distinct applications. We consider both empirical data and models, including compo
National Academy of Sciences.
-
8. Monte Carlo Studies of Plant Mating System Estimation Models: The One-Pollen Parent and Mixed Mating Models
Estimation of mating system parameters in plant populations typically employs family-structured samples of progeny genotypes. These estimation models postulate a mixture of self-fertilization and random outcrossing. One assumption of such models concerns the distribution of pollen genotypes among eggs within single maternal families. Previous applications of
-
9. Prediction of clinical drug efficacy by classification of drug-induced genomic expression profiles in vitro
Assays of drug action typically evaluate biochemical activity. However, accurately matching therapeutic efficacy with biochemical activity is a challenge. High-content cellular assays seek to bridge this gap by capturing broad information about the cellular physiology of drug action. Here, we present a method of predicting the general therapeutic classes
National Academy of Sciences.
-
10. Computational design of receptors for an organophosphate surrogate of the nerve agent soman
We report the computational design of soluble protein receptors for pinacolyl methyl phosphonic acid (PMPA), the predominant hydrolytic product of the nerve agent soman. Using recently developed computational protein design techniques, the ligand-binding pockets of two periplasmic binding proteins, glucose-binding protein and ribose-binding protein, were con
National Academy of Sciences.
-
11. The predictive power of zero intelligence in financial markets
Standard models in economics stress the role of intelligent agents who maximize utility. However, there may be situations where constraints imposed by market institutions dominate strategic agent behavior. We use data from the London Stock Exchange to test a simple model in which minimally intelligent agents place orders to trade at random. The model treats
National Academy of Sciences.
-
12. Insurance status and access to health services among poor persons.
OBJECTIVE: We examine the relationship between health insurance status and access to care among low-income persons 65 years of age and under, taking into account their social demographic characteristics and health care needs. DATA SOURCES AND STUDY SETTING. Study groups consist of the subsamples of persons with incomes between 100 and 150 percent of the fede