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EXPLAN: Explaining Black-box Classifiers using Adaptive Neighborhood Generation

Rasouli, Peyman; Yu, Ingrid Chieh
Journal article; AcceptedVersion; Peer reviewed
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EXPLAN.pdf (650.9Kb)
Year
2020
Permanent link
http://urn.nb.no/URN:NBN:no-83598

CRIStin
1836792

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  • Institutt for informatikk [3604]
  • CRIStin høstingsarkiv [15923]
Original version
Proceedings of ... International Joint Conference on Neural Networks. 2020, DOI: https://doi.org/10.1109/IJCNN48605.2020.9206710
Abstract
Defining a representative locality is an urgent challenge in perturbation-based explanation methods, which influences the fidelity and soundness of explanations. We address this issue by proposing a robust and intuitive approach for EXPLaining black-box classifiers using Adaptive Neighborhood generation (EXPLAN). EXPLAN is a module-based algorithm consisted of dense data generation, representative data selection, data balancing, and rule-based interpretable model. It takes into account the adjacency information derived from the black-box decision function and the structure of the data for creating a representative neighborhood for the instance being explained. As a local model-agnostic explanation method, EXPLAN generates explanations in the form of logical rules that are highly interpretable and well-suited for qualitative analysis of the model’s behavior. We discuss fidelity-interpretability trade-offs and demonstrate the performance of the proposed algorithm by a comprehensive comparison with state-of-the-art explanation methods LIME, LORE, and Anchor. The conducted experiments on real-world data sets show our method achieves solid empirical results in terms of fidelity, precision, and stability of explanations.
 
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