arXiv Machine Learning

MINT: Tensor Decomposition on Stacked Recurrence Matrices for Time Series Data Mining

arXiv:2608. 04157v1 Announce Type: new Abstract: Recurrence plots are a time series data mining primitive applied to a variety of domains (e.

arXiv Machine Learning
Aug 18

QSMP: finding representative time series subsequences through Quick Shift+Matrix Profile

arXiv:2608. 15492v1 Announce Type: new Abstract: Finding representative waveforms in long time series has scientific and practical value in many domains, as it enables summarization and visualization of large time series datasets, and downstream tasks like classification and forecasting.

By Carlos H. Mendoza-Cardenas, Rogers F. Silva, Austin J. Brockmeier
arXiv AI
Sep 3

SMart: A Multi-source Multi-phase Time Series Representation Transfer Framework

SMart is a new time series representation learning framework that combines a multi-phase recurrence plot recovery task with a source dataset selector. The recovery task uses three alternative modes to guide the encoder in capturing time series dynamics, while the selector chooses multiple suitable source datasets to augment the target dataset during pre‑training. Experiments demonstrate that SMart surpasses state‑of‑the‑art models, reducing mean absolute error by up to 19.5% in regression and increasing classification accuracy by up to 1.34%.

By Fang He, Wang-chien Lee