Results 51 to 60 of about 257,346 (272)
Geometry of diagonal-effect models for contingency tables
In this work we study several types of diagonal-effect models for two-way contingency tables in the framework of Algebraic Statistics. We use both toric models and mixture models to encode the different behavior of the diagonal cells.
Bocci, Cristiano +2 more
core +2 more sources
Objective Systemic lupus erythematosus (SLE) is a heterogenous inflammatory condition with widely varying global prevalence estimates. The frequency of SLE in the general population of Australia has been reported to be notably lower than contemporary estimates in countries such as the United States or United Kingdom, at 19 to 39 per 100,000 as opposed ...
Lucinda Roper +7 more
wiley +1 more source
A generalized asymmetry model for square contingency tables with ordered categories [PDF]
For square contingency tables with ordered categories, the present paper proposes an asymmetry model with m-additional parameters, which indicates (1) the generalized marginal homogeneity and (2) the structure of quasi-symmetry for cumulative ...
Kiyotaka Iki +2 more
doaj +1 more source
Objective The objective of this article is to identify perceptions of SLE patients regarding artificial intelligence (AI)‐based online symptom assessment tools, and the potential of these tools to address diagnostic barriers. Methods Adults from our SLE research cohort were invited to participate in 60‐90 minute virtual focus groups concerning their ...
Olivia A. Stein +7 more
wiley +1 more source
The Strucplot Framework: Visualizing Multi-way Contingency Tables with vcd
This paper describes the "strucplot" framework for the visualization of multi-way contingency tables. Strucplot displays include hierarchical conditional plots such as mosaic, association, and sieve plots, and can be combined into more complex ...
David Meyer, Achim Zeileis, Kurt Hornik
doaj +1 more source
Atomically engineered layered 2D Ti3CNTz carbonitride MXene exhibits ultrahigh heat and pressure sensitivity, enabling dual‐mode sensors with 300%–400% performance enhancement and durability for real‐time health‐monitoring interface devices. Precise nitrogen incorporation (e.g., Ti3C1.8N0.2Tz) boosts conductivity, enhancing temperature response, while ...
Debananda Mohapatra +12 more
wiley +1 more source
For square contingency tables with ordered categories, there would be some situations that one would like to analyze them by using collapsed 3×3 tables combining some adjacent categories in the original table.
Kouji Yamamoto +2 more
doaj +1 more source
An asymptotic formula for the number of non-negative integer matrices with prescribed row and column sums [PDF]
We count mxn non-negative integer matrices (contingency tables) with prescribed row and column sums (margins). For a wide class of smooth margins we establish a computationally efficient asymptotic formula approximating the number of matrices within a ...
Barvinok, Alexander, Hartigan, J. A.
core +2 more sources
This review examines how in vitro electrical and mechanical stimulation modulates wound healing in fibroblasts and keratinocytes. Analyzing over 560 experimental data points, we relate stimulation parameters to proliferation and migration outcomes, evaluate platform designs, and highlight the need for multi‐parameter optimization to advance targeted ...
Matthew K. Burgess +3 more
wiley +1 more source
Alternative Approaches to the Analysis of Multidimensional Contingency Tables [PDF]
The practical analyses of interactions between categorical variables in various areas (such as public opinion research or marketing research) are often only applications of chi-square tests in two-way contingency tables. However, in many situations it is
Iva Pecáková
doaj

