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Rule-Based Error Detection and Correction to Operationalize Movement Trajectory Classification

A neuro-symbolic rule-based framework improves the accuracy of movement trajectory classification models, achieving significant enhancements in both zero-shot and few-shot scenarios without retraining.

Year
2023
Venue
arXiv 2023
Authors
4
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arxiv.org/abs/2308.14250v4ARXIV-DEFAULT
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Abstract

Classification of movement trajectories has many applications in transportation and is a key component for large-scale movement trajectory generation and anomaly detection which has key safety applications in the aftermath of a disaster or other external shock. However, the current state-of-the-art (SOTA) are based on supervised deep learning - which leads to challenges when the distribution of trajectories changes due to such a shock. We provide a neuro-symbolic rule-based framework to conduct error correction and detection of these models to integrate into our movement trajectory platform. We provide a suite of experiments on several recent SOTA models where we show highly accurate error detection, the ability to improve accuracy with a changing test distribution, and accuracy improvement for the base use case in addition to a suite of theoretical properties that informed algorithm development. Specifically, we show an F1 scores for predicting errors of up to 0.984, significant performance increase for out-of distribution accuracy (8.51% improvement over SOTA for zero-shot accuracy), and accuracy improvement over the SOTA model.

Authors

4