Probabilistic Verification of Neural Networks via Efficient Probabilistic Hull Generation

· Source: Artificial Intelligence · Field: Technology & Digital — Artificial Intelligence & Machine Learning, Robotics & Autonomous Systems · Depth: Expert, quick

Summary

A novel framework for probabilistic verification of neural networks has been developed to determine the probability of satisfying safe output constraints given a probabilistic input distribution. This framework addresses scenarios where neural network inputs are subject to disturbances modeled by probabilistic variables. It computes a guaranteed range for the safe probability by efficiently identifying safe and unsafe probabilistic hulls. The approach integrates three key innovations: a regression tree-based state space subdivision strategy, a boundary-aware sampling method to pinpoint safety boundaries in the input space, and an iterative refinement process with probabilistic prioritization. Evaluations on benchmarks like ACAS Xu and a rocket lander controller demonstrate its superior accuracy and efficiency compared to existing methods.

Key takeaway

For AI Scientists and Research Scientists developing safety-critical neural network applications, this probabilistic verification framework offers a robust method to quantify safety under uncertain inputs. You should consider integrating this approach to obtain guaranteed ranges for safe probabilities, particularly for systems like autonomous controllers where input disturbances are common, thereby enhancing system reliability and certification.

Key insights

The framework verifies neural networks by computing a guaranteed safe probability range for probabilistic inputs.

Principles

Method

The method uses regression trees for state space subdivision, boundary-aware sampling for safety boundary identification, and iterative refinement with probabilistic prioritization to compute safe probability ranges.

In practice

Topics

Best for: AI Scientist, Research Scientist

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Editorial summary, takeaway, and curation by AIssential. Original article published by Artificial Intelligence.