AGENTIC-SYSTEMSMay 1, 20261 min read10 views

Binary Spiking Neural Networks as Causal Models

Researchers propose a causal analysis of Binary Spiking Neural Networks (BSNNs) using logic-based methods to provide precise abductive explanations for network outputs, outperforming traditional methods like SHAP.

Computer Science > Artificial Intelligence

Title:Binary Spiking Neural Networks as Causal Models

View PDFAbstract:We provide a causal analysis of Binary Spiking Neural Networks (BSNNs) to explain their behavior. We formally define a BSNN and represent its spiking activity as a binary causal model. Thanks to this causal representation, we are able to explain the output of the network by leveraging logic-based methods. In particular, we show that we can successfully use a SAT as well as a SMT solver to compute abductive explanations from this binary causal model. To illustrate our approach, we trained the BSNN on the standard MNIST dataset and applied our SAT-based and SMT-based methods to finding abductive explanations of the network's classifications based on pixel-level features. We also compared the found explanations against SHAP, a popular method used in the area of explainable AI. We show that, unlike SHAP, our approach guarantees that a found explanation does not contain completely irrelevant features.

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Source: arXiv cs.AI Recent

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