Search Results for author: Alexander T. Ihler

Found 9 papers, 1 papers with code

Deep Learning Enhanced Dynamic Mode Decomposition

1 code implementation10 Aug 2021 Daniel J. Alford-Lago, Christopher W. Curtis, Alexander T. Ihler, Opal Issan

Koopman operator theory shows how nonlinear dynamical systems can be represented as an infinite-dimensional, linear operator acting on a Hilbert space of observables of the system.

Lifted Weighted Mini-Bucket

no code implementations NeurIPS 2018 Nicholas Gallo, Alexander T. Ihler

Many graphical models, such as Markov Logic Networks (MLNs) with evidence, possess highly symmetric substructures but no exact symmetries.

Dynamic Importance Sampling for Anytime Bounds of the Partition Function

no code implementations NeurIPS 2017 Qi Lou, Rina Dechter, Alexander T. Ihler

Our algorithm combines and generalizes recent work on anytime search and probabilistic bounds of the partition function.

Probabilistic Variational Bounds for Graphical Models

no code implementations NeurIPS 2015 Qiang Liu, John W. Fisher III, Alexander T. Ihler

We propose a simple Monte Carlo based inference method that augments convex variational bounds by adding importance sampling (IS).

Variational Planning for Graph-based MDPs

no code implementations NeurIPS 2013 Qiang Cheng, Qiang Liu, Feng Chen, Alexander T. Ihler

The KL divergence is optimized using the belief propagation algorithm, with complexity exponential in only the cluster size of the graph.

Decision Making

Scoring Workers in Crowdsourcing: How Many Control Questions are Enough?

no code implementations NeurIPS 2013 Qiang Liu, Alexander T. Ihler, Mark Steyvers

We study the problem of estimating continuous quantities, such as prices, probabilities, and point spreads, using a crowdsourcing approach.

Particle-based Variational Inference for Continuous Systems

no code implementations NeurIPS 2009 Andrew Frank, Padhraic Smyth, Alexander T. Ihler

Since the development of loopy belief propagation, there has been considerable work on advancing the state of the art for approximate inference over distributions defined on discrete random variables.

Variational Inference

A Low Density Lattice Decoder via Non-Parametric Belief Propagation

no code implementations21 Jan 2009 Danny Bickson, Alexander T. Ihler, Danny Dolev

We show that the LDLC decoder is an instance of non-parametric belief propagation and further connect it to the Gaussian belief propagation algorithm.

Information Theory Information Theory

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