id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
fcis-12471	Li, Hanrong; Hong, Xizhi; Hu, Baoyan	Analysis of Arrhythmia Features based on LightGBM and Kmeans Feature Extraction	2023	5	.pdf	application/pdf	3052	166	55	Further Subdivision of Hazard Category 4 by Elbow Method Based on the above analysis and further observation of the cluster center, it can be concluded that risk category 1 can be further divided into two categories, namely low-frequency ventricular tachycardia (VTLR), ventricular premature beats (B), high ventricular ectopic beats (HGEA), and ventricular escape rhythm (VER) Based on the above summary, this article draws images to observe the numerical variance of each area with a danger level of 4, and the results are as follows Figure 7. S-T band: The shape and position of the S-T band may vary in low-frequency ventricular tachycardia (VTLR), ventricular premature beats (B), high ventricular ectopic beats (HGEA), and ventricular escape rhythm (VER).	cache/fcis-12471.pdf	txt/fcis-12471.txt