← Search

Isaac J. Sledge

4 accepted papers

2019

A Differential-geometric Approach for Globally Solving a Non-convex, Discontinuous Depth Estimation Problem for Plenoptic Camera Images

ICASSP 2019accepted

In this paper, we address the problem of estimating a scene's three-dimensional geometry from plenoptic camera images. Existing approaches for this problem have emphasized the development of sharpness and contrast measures for distinguishing between in-/out-of-focus image regions. The ways in which…

Cited by 0SourceScholar
2019

An Information-theoretic Approach for Automatically Determining the Number of State Groups When Aggregating Markov Chains

ICASSP 2019accepted

A fundamental problem when aggregating Markov chains is the specification of the number of state groups. Too few state groups may fail to sufficiently capture the pertinent dynamics of the original, high-order Markov chain. Too many state groups may lead to a non-parsimonious, reduced-order Markov c…

Cited by 0SourceScholar
2018

Partitioning Relational Matrices of Similarities or Dissimilarities Using the Value of Information

ICASSP 2018accepted

In this paper, we provide an approach to clustering relational matrices whose entries correspond to either similarities or dissimilarities between objects. Our approach is based on the value of information, a parameterized, information-theoretic criterion that measures the change in costs associated…

Cited by 0SourceScholar
2017

Balancing exploration and exploitation in reinforcement learning using a value of information criterion

ICASSP 2017accepted

In this paper, we consider an information-theoretic approach for addressing the exploration-exploitation dilemma in reinforcement learning. We employ the value of information, a criterion that provides the optimal trade-off between the expected returns and a policy's degrees of freedom. As the degre…

Cited by 0SourceScholar