Look versus Leap: Computing Value of Information with High-Dimensional Streaming Evidence

Stephanie Rosenthal, Dan Bohus, Ece Kamar, and Eric Horvitz

Abstract

A key decision facing autonomous systems with ac-

cess to streams of sensory data is whether to act

based on current evidence or to wait for additional

information that might enhance the utility of tak-

ing an action. Computing the value of informa-

tion is particularly difficult with streaming high-

dimensional sensory evidence. We describe a belief

projection approach to reasoning about information

value in these settings, using models for inferring

future beliefs over states given streaming evidence.

These belief projection models can be learned from

data or constructed via direct assessment of param-

eters and they fit naturally in modular, hierarchical

state inference architectures. We describe princi-

ples of using belief projection and present results

drawn from an implementation of the methodology

within a conversational system.

Details

Publication typeProceedings
PublisherInternational Joint Conference on Artificial Intelligence
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