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Summary of Validation, Robustness, and Accuracy Of Perturbation-based Sensitivity Analysis Methods For Time-series Deep Learning Models, by Zhengguang Wang


Validation, Robustness, and Accuracy of Perturbation-Based Sensitivity Analysis Methods for Time-Series Deep Learning Models

by Zhengguang Wang

First submitted to arxiv on: 29 Jan 2024

Categories

  • Main: Machine Learning (cs.LG)
  • Secondary: Artificial Intelligence (cs.AI)

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GrooveSquid.com Paper Summaries

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Summary difficulty Written by Summary
High Paper authors High Difficulty Summary
Read the original abstract here
Medium GrooveSquid.com (original content) Medium Difficulty Summary
This paper evaluates various interpretability methods for time-series deep learning, focusing on perturbation-based sensitivity analysis. The authors investigate how different post-hoc interpretation methods, such as back-propagation and approximation, perform when applied to modern Transformer models. Specifically, they answer three research questions: whether different sensitivity analysis methods yield similar outputs and importance rankings; whether different deep learning models impact the results of sensitivity analysis; and how well the results align with ground truth.
Low GrooveSquid.com (original content) Low Difficulty Summary
This paper looks at ways to understand why AI models make certain decisions when working with time-series data. The researchers compare different techniques that try to figure out how inputs affect outputs, including one called perturbation-based sensitivity analysis. They use this method on special AI models called Transformers and ask three key questions: Do the various methods give similar answers? Do different AI models change the results? And do these results match what we know is true?

Keywords

* Artificial intelligence  * Deep learning  * Time series  * Transformer