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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö > Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö B

Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö B

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ÇѱÛÁ¦¸ñ(Korean Title) ºÎÁ¤¸Æ Áõ»óÀ» ÀÚµ¿À¸·Î ÆǺ°ÇÏ´Â Random Forest ºÐ·ù±âÀÇ Á¤È®µµ Çâ»óÀ» À§ÇÑ ¼öÁ¤ ¾Ë°í¸®Áò¿¡ ´ëÇÑ ¿¬±¸
¿µ¹®Á¦¸ñ(English Title) Research on the modified algorithm for improving accuracy of Random Forest classifier which identifies automatically arrhythmia
ÀúÀÚ(Author) ÀÌÇöÁÖ   ½Åµ¿±Ô   ¹ÚÈñ¿ø   ±è¼öÇÑ   ½Åµ¿ÀÏ   HyunJu Lee   DongKyoo Shin   HeeWon Park   SooHan Kim   DongIl Shin  
¿ø¹®¼ö·Ïó(Citation) VOL 18-B NO. 06 PP. 0341 ~ 0348 (2011. 12)
Çѱ۳»¿ë
(Korean Abstract)
»ýü½ÅÈ£ÀÇ ÇÑ ºÐ¾ßÀÎ ½ÉÀüµµ´Â ºÐ·ù¾Ë°í¸®ÁòÀ» »ç¿ëÇÑ ½ÇÇèÀÌ ÀϹÝÀûÀÌ´Ù. ½ÉÀüµµ¸¦ ½ÇÇèÇÑ ³í¹®¿¡¼­ »ç¿ëµÈ ºÐ·ù¾Ë°í¸®ÁòÀº ´ëºÎºÐ SVM(Support Vector Machine), MLP(Multilayer Perceptron) À̾úÀ¸³ª, º» ½ÇÇèÀº Random Forest ºÐ·ù±â¸¦ ½ÃµµÇÏ¿´´Ù. ½ÇÇè¹æ¹ýÀº Random Forest ¾Ë°í¸®ÁòÀ» ½ÇÇèµ¥ÀÌÅÍÀÇ ½ÅÈ£ÀÇ Æ¯Â¡¿¡ ±â¹ÝÇÏ¿© ºÐ¼®Çϵµ·Ï ¼öÁ¤ÇÏ¿´°í, ºÐ·ù±âÀÇ ¼öÁ¤µÈ ¾Ë°í¸®Áò ¼º´ÉÀ» ±Ô¸íÇϱâ À§ÇÏ¿© SVM°ú MLP ºÐ·ù±â¿Í Á¤È®µµ¸¦ ºñ±³ ºÐ¼®ÇÏ¿´´Ù. ½ÇÇè¿¡¼­´Â ½ÉÀüµµ ½ÅÈ£ÀÇ R-R intervalÀ» ÃßÃâÇÏ¿© ½ÃÇàÇÏ¿´À¸¸ç ¶ÇÇÑ µ¿ÀÏÇÑ µ¥ÀÌÅ͸¦ »ç¿ëÇÑ Å¸ ³í¹®ÀÇ °á°ú¿Í º» ½ÇÇèÀÇ °á°ú¸¦ ºñ±³ ºÐ¼®ÇÏ¿´´Ù.¡¡°á°ú´Â ¼öÁ¤µÈ Random Forest ºÐ·ù±â°¡ SVM, MLP ºÐ·ù±â, ±×¸®°í Ÿ ½ÇÇèÀÇ °á°úº¸´Ù Á¤È®µµ ºÎºÐ¿¡¼­´Â ¿ì¼öÇÑ °á°ú¸¦ µµÃâÇÏ¿´´Ù. º» ½ÇÇèÀÇ Àüó¸® °úÁ¤¿¡¼­´Â ´ë¿ªÅë°úÇÊÅ͸¦ »ç¿ëÇÏ¿© R-R intervalÀ» ÃßÃâÇÏ¿´´Ù. ±×·¯³ª ½ÉÀüµµ ½ÇÇè¿¡¼­´Â ´ë¿ªÅë°ú ÇÊÅÍ »Ó ¾Æ´Ï¶ó, ¿þÀÌºí¸´ º¯È¯, ¸Þµð¾È ÇÊÅÍ, À¯ÇÑ ÀÓÆÞ½º ÇÊÅÍ µîÀ¸·Î ½ÇÇèÇÏ´Â °æ¿ì°¡ ¸¹´Ù.¡¡µû¶ó¼­ ÇâÈÄ¿¡´Â Àü󸮰úÁ¤¿¡¼­ ±âÀú¼± ÀâÀ½(baseline wandering)À» È¿À²ÀûÀ¸·Î Á¦°ÅÇÏ´Â ÇÊÅÍÀÇ ¼±ÅÃÀÌ ÇÊ¿äÇϸç, R-R intervalÀ» Á¤È®ÇÏ°Ô ÃßÃâÇÒ ¼ö ÀÖ´Â ¹æ¹ý¿¡ ´ëÇÑ ¿¬±¸°¡ ÇÊ¿äÇÏ´Ù°í »ç·ÁµÈ´Ù.
¿µ¹®³»¿ë
(English Abstract)
ECG(Electrocardiogram), a field of Bio-signal, is generally experimented with classification algorithms most of which are SVM(Support Vector Machine), MLP(Multilayer Perceptron). But this study modified the Random Forest Algorithm along the basis of signal characteristics and comparatively analyzed the accuracies of modified algorithm with those of SVM and MLP to prove the ability of modified algorithm. The R-R interval extracted from ECG is used in this study and the results of established researches which experimented co-equal data are also comparatively analyzed. As a result, modified RF Classifier showed better consequences than SVM classifier, MLP classifier and other researches' results in accuracy category. The Band-pass filter is used to extract R-R interval in pre-processing stage. However, the Wavelet transform, median filter, and finite impulse response filter in addition to Band-pass filter are often used in experiment of ECG. After this study, selection of the filters efficiently deleting the baseline wandering in pre-processing stage and study of the methods correctly extracting the R-R interval are needed.
Å°¿öµå(Keyword) ½ÉÀüµµ   Random Forest   SVM   MLP   R-R Interval   ºÐ·ù±â   Á¤È®µµ   ECG   Classifier   Accuracy  
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