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Differentiable and Stable Long-Range Tracking of Multiple Posterior Modes
April 16, 2024, 4:41 a.m. | Ali Younis, Erik Sudderth
cs.LG updates on arXiv.org arxiv.org
Abstract: Particle filters flexibly represent multiple posterior modes nonparametrically, via a collection of weighted samples, but have classically been applied to tracking problems with known dynamics and observation likelihoods. Such generative models may be inaccurate or unavailable for high-dimensional observations like images. We instead leverage training data to discriminatively learn particle-based representations of uncertainty in latent object states, conditioned on arbitrary observations via deep neural network encoders. While prior discriminative particle filters have used heuristic relaxations …
abstract arxiv collection cs.ai cs.lg cs.ro data differentiable dynamics filters generative generative models images multiple observation particle posterior samples tracking training training data type via
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