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 Statistical Learning


tandx

Neural Information Processing Systems

BytheMarkovian assumption forlatent state vectors, the Hessian matrix is tri-block diagonal. To facilitate convergence, we initialize the Newton update with a smoothing estimate bylocalGaussian approximation. Theforwardfiltering foradynamic Poisson modelhas been previously described (Eden etal., 2004), and we use anadditional backward pass tosmooth (Rauchetal.,1965). Without constraints, the sampling ofh(j), g(j) and σ2(j) is the same as shown previously. The update of A(j), b(j) and Q(j) is the standard multivariate Bayesian linear regression.


7b39f4512a2e3899edcc59c7501f3cd4-Paper-Conference.pdf

Neural Information Processing Systems

The LDS model is built on the state-space model and assumes latent factors evolvewith linear dynamics. Ontheother hand, GPFAmodels thelatent vectors by non-parametric Gaussian processes.









AdversarialGraphAugmentationtoImprove GraphContrastiveLearning

Neural Information Processing Systems

Graph contrastivelearning (GCL), by training GNNs to maximize the correspondence between the representations of the same graph in its different augmented forms, may yield robust and transferable GNNs even without using labels.