"It is not uncommon for an analyst to conduct a supervised analysis of data to detect which predictors are significantly associated with the outcome. These significant predictors are then used in a visualization (such as a heat map or cluster analysis) on the same data. Not surprisingly, the visualization reliably demonstrates clear patterns between the outcomes and predictors and appears to provide evidence of their importance. However, since the same data are shown, the visualization is essentially cherry picking the results that are only true for these data and which are unlikely to generalize to new data."
Wrote Max Kuhn @topepo and Kjell Johnson, 2019, in "Feature Engineering and Selection: A Practical Approach for Predictive Models" https://bookdown.org/max/FES/
#correlations #NoFreeLunch #electricity #agriculture #livestock #renewables #dataViz #emissions #GHG #methane #GreenhouseForcing #dataScience #featureEngineering #correlation
Des #corrélations #quantiques #sans #intrication: une découverte surprenante
Geometry from Quantum Temporal Correlations
https://arxiv.org/abs/2502.13293
#HackerNews #Geometry #Quantum #Temporal #Correlations #Research #Arxiv #Science
In this work, we show how Euclidean 3-space uniquely emerges from the structure of quantum temporal correlations associated with sequential measurements of Pauli observables on a single qubit. Quite remarkably, the quantum temporal correlations which give rise to geometry are independent of the initial state of the qubit, which we show enables an observer to extract geometric data from sequential measurements without the observer having any knowledge of initial conditions. Such results suggest the plausibility that space itself may emerge from quantum temporal correlations, and we formulate a toy model of such a hypothetical phenomenon.
✍️Quantum #memory and quantum #correlations of Majorana #qubits used for magnetometry #by H. Rangani Jahromi and S. Haseli
Google Search Rankings Correlate HIGHLY with Websites that publish content, use domain names in their URLs, use internal links to connect pages together, and that appear in results on other search engines.
#seo #searchengineoptimization #analysis #correlations #webmarketing #digitalmarketing #algorithms #machinelearning #ai #science #math #yourtaghere
Correlation studies do NOT reveal how Google's algorithms work. Correlation studies do not identify cause-and-effect, they do not point to or imply cause-and-effect, and they do not explain why anything is happening in Google's search results.
#seo #searchengineoptimization #google #searchengines #analytics #correlations #statistics #webmarketing #digitalmarketing
"A major function [of deductive #logic is in] assessing exactly what is involved in asserting some set of propositions. […] By omitting some premiss without which the deduction of some conclusion is not valid, it misrepresents the premiss from which this conclusion is obtained, and hence responsibility for the conclusion. To agree to accept partial responsibility as good enough here is like agreeing to say that somebody was responsible for the dinner when he peeled potatoes and the cook did the rest. The first statement cannot be accepted as an elliptical, but allowable, way of making the second statement. And similarly suppression [of some premiss] enables us to obtain as causally responsible a partially sufficient rather than a fully sufficient causal condition."
Valerie Plumwood in Australasian Journal of Logic, 2023: https://ojs.victoria.ac.nz/ajl/issue/view/894 v @rrrichardzach
#Plumwood #causality #correlations #economics #reason #ProofTheory #PhilSci #truth #science #ethics #ecofeminism #freedom