Title
Discovering Unexpected Local Nonlinear Interactions in Scientific Black-box Models
Abstract
Scientific computational models are crucial for analyzing and understanding complex real-life systems that are otherwise difficult for experimentation. However, the complex behavior and the vast input-output space of these models often make them opaque, slowing the discovery of novel phenomena. In this work, we present HINT (Hessian INTerestingness) -- a new algorithm that can automatically and systematically explore black-box models and highlight local nonlinear interactions in the input-output space of the model. This tool aims to facilitate the discovery of interesting model behaviors that are unknown to the researchers. Using this simple yet powerful tool, we were able to correctly rank all pairwise interactions in known benchmark models and do so faster and with greater accuracy than state-of-the-art methods. We further applied HINT to existing computational neuroscience models, and were able to reproduce important scientific discoveries that were published years after the creation of those models. Finally, we ran HINT on two real-world models (in neuroscience and earth science) and found new behaviors of the model that were of value to domain experts.
Year
DOI
Keywords
2019
10.1145/3292500.3330886
computational models, interestingness, neuroscience, nonlinear interactions, simulation
Field
DocType
ISSN
Black box (phreaking),Nonlinear system,Computer science,Artificial intelligence,Machine learning
Conference
978-1-4503-6201-6
ISBN
Citations 
PageRank 
978-1-4503-6201-6
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Michael Doron100.34
Idan Segev215327.18
Dafna Shahaf334222.72