#invariance — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #invariance, aggregated by home.social.
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I really enjoy reading the expanding literature on #invariance of #ValueSets. Two interesting papers and a taxonomy regarding #obsolescence
1- https://link.springer.com/article/10.1007/s11136-024-03770-5
2- https://www.sciencedirect.com/science/article/pii/S1098301525062072
3- https://link.springer.com/article/10.1007/s40273-025-01476-1
"As time and methods advance, the bedrock of applied valuation research naturally becomes increasingly unreliable, and, as a field, we need to consider how to approach this challenge."
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I really enjoy reading the expanding literature on #invariance of #ValueSets. Two interesting papers and a taxonomy regarding #obsolescence
1- https://link.springer.com/article/10.1007/s11136-024-03770-5
2- https://www.sciencedirect.com/science/article/pii/S1098301525062072
3- https://link.springer.com/article/10.1007/s40273-025-01476-1
"As time and methods advance, the bedrock of applied valuation research naturally becomes increasingly unreliable, and, as a field, we need to consider how to approach this challenge."
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'Stationary Kernels and Gaussian Processes on Lie Groups and their Homogeneous Spaces II: non-compact symmetric spaces', by Iskander Azangulov, Andrei Smolensky, Alexander Terenin, Viacheslav Borovitskiy.
http://jmlr.org/papers/v25/23-0115.html
#gaussian #invariance #cov -
'Stationary Kernels and Gaussian Processes on Lie Groups and their Homogeneous Spaces II: non-compact symmetric spaces', by Iskander Azangulov, Andrei Smolensky, Alexander Terenin, Viacheslav Borovitskiy.
http://jmlr.org/papers/v25/23-0115.html
#gaussian #invariance #cov -
'Stationary Kernels and Gaussian Processes on Lie Groups and their Homogeneous Spaces I: the compact case', by Iskander Azangulov, Andrei Smolensky, Alexander Terenin, Viacheslav Borovitskiy.
http://jmlr.org/papers/v25/22-1434.html
#gaussian #invariance #spatiotemporal -
'Stationary Kernels and Gaussian Processes on Lie Groups and their Homogeneous Spaces I: the compact case', by Iskander Azangulov, Andrei Smolensky, Alexander Terenin, Viacheslav Borovitskiy.
http://jmlr.org/papers/v25/22-1434.html
#gaussian #invariance #spatiotemporal -
#Spinors can be viewed as "square roots" of #sections of #vector #bundles.
https://en.m.wikipedia.org/wiki/Spinor
#Spinors are mathematical entities somewhat like #tensors, that allow a more general treatment of the notion of #invariance under #rotation and #Lorentz boosts.
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'Effect-Invariant Mechanisms for Policy Generalization', by Sorawit Saengkyongam, Niklas Pfister, Predrag Klasnja, Susan Murphy, Jonas Peters.
http://jmlr.org/papers/v25/23-0802.html
#causal #generalization #invariance -
'Effect-Invariant Mechanisms for Policy Generalization', by Sorawit Saengkyongam, Niklas Pfister, Predrag Klasnja, Susan Murphy, Jonas Peters.
http://jmlr.org/papers/v25/23-0802.html
#causal #generalization #invariance -
Interpolation Can Provably Preclude Invariance https://arxiv.org/abs/2211.15724
#Overfitting to the point of #interpolation can hinder invariance-inducing objectives: One cannot assume a #DeepLearninig model with an invariance penalty will indeed achieve any form of #invariance… suggests that “benign overfitting,” in which models generalize well despite interpolating, might not favorably extend to settings in which #robustness or #fairness are desirable. -
Interpolation Can Provably Preclude Invariance https://arxiv.org/abs/2211.15724
#Overfitting to the point of #interpolation can hinder invariance-inducing objectives: One cannot assume a #DeepLearninig model with an invariance penalty will indeed achieve any form of #invariance… suggests that “benign overfitting,” in which models generalize well despite interpolating, might not favorably extend to settings in which #robustness or #fairness are desirable. -
Interpolation Can Provably Preclude Invariance https://arxiv.org/abs/2211.15724
#Overfitting to the point of #interpolation can hinder invariance-inducing objectives: One cannot assume a #DeepLearninig model with an invariance penalty will indeed achieve any form of #invariance… suggests that “benign overfitting,” in which models generalize well despite interpolating, might not favorably extend to settings in which #robustness or #fairness are desirable. -
Interpolation Can Provably Preclude Invariance https://arxiv.org/abs/2211.15724
#Overfitting to the point of #interpolation can hinder invariance-inducing objectives: One cannot assume a #DeepLearninig model with an invariance penalty will indeed achieve any form of #invariance… suggests that “benign overfitting,” in which models generalize well despite interpolating, might not favorably extend to settings in which #robustness or #fairness are desirable. -
Interpolation Can Provably Preclude Invariance https://arxiv.org/abs/2211.15724
#Overfitting to the point of #interpolation can hinder invariance-inducing objectives: One cannot assume a #DeepLearninig model with an invariance penalty will indeed achieve any form of #invariance… suggests that “benign overfitting,” in which models generalize well despite interpolating, might not favorably extend to settings in which #robustness or #fairness are desirable. -
"By definition, only amodal properties (information not specific to a particular sensory system; e.g., tempo, rhythm, duration, intensity) can be redundantly specified across the senses."
In other words, cross-modal redundancy is a type of invariance or symmetry with respect to transformation of sensory modality.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4316375/
🧵 More excerpts below 👇
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"By definition, only amodal properties (information not specific to a particular sensory system; e.g., tempo, rhythm, duration, intensity) can be redundantly specified across the senses."
In other words, cross-modal redundancy is a type of invariance or symmetry with respect to transformation of sensory modality.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4316375/
🧵 More excerpts below 👇
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All linguistic communication requires symbols, no?
I like to think of metaphors as latent analogies. More on this here:
https://yohanjohn.com/axispraxis/metaphor-the-alchemy-of-thought/
Both metaphor and analogy are in turn types of #symmetry or #invariance.
https://3quarksdaily.com/3quarksdaily/2014/07/science-is-symmetry.html
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I'm a senior researcher at Microsoft Research Health futures in Amsterdam/Cambridge.
My research interests include invariance/equivariance, causality and representation learning, especially the interplay of these 3 things. All applied to medical imaging.
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#stats #sem #review #invariance
Interesting review by a solid and robust team on invariance testing in Sturctural Equation Modeling.
https://www.sciencedirect.com/science/article/pii/S0049089X22001168?dgcid=coauthor
