Successive Model-Agnostic Meta-Learning for Few-Shot Fault Time Series
  Prognosis
Hai Su Jiajun Hu Songsen Yu
Meta learning is a promising technique for solving few-shot fault prediction
problems, which have attracted the attention of many researchers in recent
years. Existing meta-learning methods for time series prediction, which
predominantly rely on random and similarity matching-based task partitioning,
face three major limitations: (1) feature exploitation inefficiency; (2)
suboptimal task data allocation; and (3) limited robustness with small samples.
To overcome these limitations, we introduce a novel 'pseudo meta-task'
partitioning scheme that treats a continuous time period of a time series as a
meta-task, composed of multiple successive short time periods. Employing
continuous time series as pseudo meta-tasks allows our method to extract more
comprehensive features and relationships from the data, resulting in more
accurate predictions. Moreover, we introduce a differential algorithm to
enhance the robustness of our method across different datasets. Through
extensive experiments on several fault and time series prediction datasets, we
demonstrate that our approach substantially enhances prediction performance and
generalization capability under both few-shot and general conditions.