Interpreting Complex Regression Models

Visualizing Marginal Effects from Interactions in Generalized Linear Models

Interactions are often included in generalized linear models (GLM). Interpreting these interactions in the transformed scale of the linear equation is like interpreting an interaction in an OLS regression. However, this is rarely the scale in which results are discussed, and interpreting interactions in the non-transformed scale is not straightforward. Focusing on a continuous by categorical in...

Non-Linear Text Regression with a Deep Convolutional Neural Network

Text regression has traditionally been tackled using linear models. Here we present a non-linear method based on a deep convolutional neural network. We show that despite having millions of parameters, this model can be trained on only a thousand documents, resulting in a 40% relative improvement over sparse linear models, the previous state of the art. Further, this method is flexible allowing...

Interpreting Covariate Effects in Regression Models: Searching for Synergism and Antagonism

Depicting estimates using the intercept in meta-regression models: The moving constant technique.

In any scientific discipline, the ability to portray research patterns graphically often aids greatly in interpreting a phenomenon. In part to depict phenomena, the statistics and capabilities of meta-analytic models have grown increasingly sophisticated. Accordingly, this article details how to move the constant in weighted meta-analysis regression models (viz. "meta-regression") to illuminate...

The efficiency of Artificial Neural Network, Neuro-Fuzzy and Multivariate Regression models for runoff and erosion simulation using rainfall simulator

1- INTRODUCTION According to the complexity of environmental factors related to erosion and runoff, correct simulation of these variables find importance under rain intensity domain of watershed areas.  Although modeling of erosion and runoff by Artificial Neural Network and Neuro-Fuzzy based on rainfall-runoff and discharge-sediment models were widely applied by researchers, scrutinizing Arti...