no code implementations • 22 Dec 2021 • Timothy L. Molloy, Girish N. Nair
We investigate partially observed Markov decision processes (POMDPs) with cost functions regularized by entropy terms describing state, observation, and control uncertainty.
no code implementations • 19 Aug 2021 • Timothy L. Molloy, Girish N. Nair
We study the problem of controlling a partially observed Markov decision process (POMDP) to either aid or hinder the estimation of its state trajectory.
no code implementations • 3 Jun 2021 • Salman Ahmadi, Girish N. Nair, Erik Weyer
Then, conditions are derived under which Granger causality between jointly Gaussian processes can be reliably inferred from the second order moments of quantized measurements.
no code implementations • 4 Apr 2021 • Timothy L. Molloy, Girish N. Nair
By establishing a novel form of the smoother entropy in terms of the POMDP belief (or information) state, we show that our active smoothing problem can be reformulated as a (fully observed) Markov decision process with a value function that is concave in the belief state.
no code implementations • 23 Mar 2021 • Timothy L. Molloy, Girish N. Nair
In this paper we investigate the problem of controlling a partially observed stochastic dynamical system such that its state is difficult to infer using a (fixed-interval) Bayesian smoother.
no code implementations • 19 Oct 2020 • Timothy L. Molloy, Tobias Fischer, Michael Milford, Girish N. Nair
A key challenge in visual place recognition (VPR) is recognizing places despite drastic visual appearance changes due to factors such as time of day, season, weather or lighting conditions.
no code implementations • 24 Mar 2020 • Amir Saberi, Farhad Farokhi, Girish N. Nair
We investigate state estimation of linear systems over channels having a finite state not known by the transmitter or receiver.
no code implementations • 9 Feb 2020 • Ghassen Zafzouf, Girish N. Nair, Farhad Farokhi
This paper addresses the problem of distributed state estimation via multiple access channels (MACs).