Results 111 to 120 of about 4,927,965 (236)

Smooth Risk Functions for Self-Controlled Case Series Models [PDF]

, 2014
The self-controlled case series (SCCS) method is commonly used to investigate associations between vaccine exposures and adverse events (side effects). It is an alternative to cohort and case control study designs. It requires information only on cases, individuals who have experienced the adverse event at least once, and automatically controls all ...
openaire   +1 more source

Bayesian functional linear regression with sparse step functions

, 2016
The functional linear regression model is a common tool to determine the relationship between a scalar outcome and a functional predictor seen as a function of time. This paper focuses on the Bayesian estimation of the support of the coefficient function.
Abraham, Christophe, Baragatti, Meïli, Grollemund, Paul-Marie, Pudlo, Pierre   +3 more
core   +1 more source

Estimating Asymmetric Advertising Response: An Application to U.S. Nonalcoholic Beverage Demand [PDF]

We propose a regime-switching model that allows demand to respond asymmetrically to upward and downward advertising changes. With the introduction of a smooth transition function, the model features smooth rather than abrupt parameter changes between ...
Kaiser, Harry M., Zheng, Yuqing
core   +1 more source

Smooth Information Criterion for Regularized Estimation of Item Response Models

Algorithms
Item response theory (IRT) models are frequently used to analyze multivariate categorical data from questionnaires or cognitive test data. In order to reduce the model complexity in item response models, regularized estimation is now widely applied ...
Alexander Robitzsch
doaj   +1 more source

Perpetual Barrier Options in Jump-Diffusion Models [PDF]

We present a closed form solution to the perpetual American double barrier call option problem in a model driven by a Brownian motion and a compound Poisson process with exponential jumps.
Pavel V. Gapeev
core  

The Rise in Danish Unemployment: Reallocation or Mismatch? [PDF]

Two key relations in theoretical work on labor market flows are analyzed; the hiring function and the uv-curve. The relations are identified in a cointegrated VAR-model framework.
Henrik Hansen, Karsten Albæk
core  

Research of the Isogeometric Analysis of Gear Frictionless Contact

Jixie chuandong, 2015
The isogeometric analysis method（IGA）is expanded to frictionless contact problem.The contact constraint is introduced into the system potential energy function by using the penalty function method.The modeling and contact analysis of the involute gear ...
Xu Huan, Yang Guolai, Zheng Jianguo, Ge Jianli   +3 more
doaj  

Finite set model predictive control of permanent magnet synchronous motor current based on super twisting sliding mode observer.

PLoS ONE
This paper proposes a current model predictive control strategy for the permanent magnet synchronous motor (PMSM) based on a novel sliding mode observer to reduce the cost of PMSM and ensure good tracking performance.
Huanhuan Ren, Chengzhi Su, Ranxiang Long
doaj   +1 more source

The Impact of Two Data-Generating Processes for Competing Risk Data on the Discrimination and Calibration of Two Types of Competing Risk Regression Models. [PDF]

Stat Med
Austin PC, Putter H.
europepmc   +1 more source

Improved Centile Estimation by Transformation And/Or Adaptive Smoothing of the Explanatory Variable. [PDF]

Stat Med
Rigby RA, Stasinopoulos DM, Cole TJ.
europepmc   +1 more source