Publications [#328813] of Hau-Tieng Wu

Papers Published

1. Malik, J; Reed, N; Wang, C-L; Wu, H-T, Single-lead f-wave extraction using diffusion geometry., Physiological measurement, vol. 38 no. 7 (June, 2017), pp. 1310-1334 [doi]
   (last updated on 2024/04/18)

   Abstract:
   

   Objective

   A novel single-lead f-wave extraction algorithm based on the modern diffusion geometry data analysis framework is proposed.

   Approach

   The algorithm is essentially an averaged beat subtraction algorithm, where the ventricular activity template is estimated by combining a newly designed metric, the 'diffusion distance', and the non-local Euclidean median based on the non-linear manifold setup. We coined the algorithm [Formula: see text].

   Main results

   Two simulation schemes are considered, and the new algorithm [Formula: see text] outperforms traditional algorithms, including the average beat subtraction, principal component analysis, and adaptive singular value cancellation, in different evaluation metrics with statistical significance.

   Significance

   The clinical potential is shown in the real Holter signal, and we introduce a new score to evaluate the performance of the algorithm.