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Laplace mechanism on vector record?

Does the definition of neighboring database in differential privacy capture the multi-dimensional record? Let's say we have a database domain $mathbb{N}^{ntimes d}$ where $n$ is the number of...

1

Cross Validated Asked on 2 years ago

About Murphy's notation: why is $p(y|x, theta)$ a conditional expectation when there is no probabilistic interpretation on $x$ or $theta$?

In section 1.4.5 of Kevin Murphy ML textbook, he introduces linear regression where for a given data $x$, the target $y$ is assumed to be obtained through ...

1

Cross Validated Asked on 2 years ago

Can I fit a complex model in two stages (maximum likelihood)?

BackgroundI have a rather complex non-linear mixed model. It's intended to model exponentially decaying responses to transient events in animal behaviour experiments. In addition, I've used latent variables...

0

Cross Validated Asked on 2 years ago

Should I run a machine learning model many times?

I am comparing different classification models and for a given model (let's say logistic regression), everytime I run it, it obviously produces a slightly different value for the Accuracy and...

2

Cross Validated Asked by ka28mi on 2 years ago

Which correlation method to us?

I am debating whether to use Pearson's correlation or Kendall's tau on a set of data. While linear relationships among subsets of the data are reasonable, I am deeply skeptical...

1

Cross Validated Asked on 2 years ago

How to interpret coefficients from regularized cox regression?

I have computed regularized coxph model with LASSO penalty, some of the covariates are thus omited. But I got some non-zero betas. Is it possible to interpret these values, in...

1

Cross Validated Asked on 2 years ago

Prediction Intervals (Conformal Predictions) for Regression Problems

So I've been looking into the idea of looking into conformal predictions, or to obtain prediction intervals instead of just single point predictions. Basically my take is that I would...

0

Cross Validated Asked by bioinformatics_student on 2 years ago

Why not use % change in regression instead of log diff?

Given that log difference = percent change why not make the series stationary by just using percent change as the regresor. a. It's not an approximation and we can interpret...

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Cross Validated Asked by tjaqu787 on 2 years ago

Estimating expected values for correlated data using random effects models

Statement of the problem: in a study, continuous and dichotomous variables were measured for both eyes for 60 individuals. The researchers needs estimates of expected values (means and proportions) for...

4

Cross Validated Asked by Nicolas Molano on 2 years ago

Should multiple testing correct with bonferroni ever reduce a p value's size?

I just did a series of 40 t-tests and then proceeded to use bonferroni correction for multiple testing and my P values reduced in size. Why does this happen? I...

1

Cross Validated Asked on 2 years ago

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