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Çѱ¹¼öÀÚ¿øÇÐȸ / v.39, no.6, 2006³â, pp.495-502
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±ØÄ¡°ª ÃßÁ¤¿¡ ÀûÇÕÇÑ ºñ¸Å°³º¯¼öÀû ÇÙÇÔ¼ö °³¹ß
( A Development of Noparamtric Kernel Function Suitable for Extreme Value ) |
| Â÷¿µÀÏ;±è¼ø¹ü;¹®¿µÀÏ; Çѱ¹Á¾ÇÕ±â¼ú°³¹ß°ø»ç;¼ÀÏ´ëÇÐ Åä¸ñ°ú;¼¿ï½Ã¸³´ëÇб³ Åä¸ñ°øÇаú;
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| ºñ¸Å°³º¯¼öÀû ºóµµÇؼ®À» À§ÇØ Á¦½ÃµÇ´Â ÇٹеµÇÔ¼ö ¹æ¹ý¿¡¼ ³»»ð¹ýÀº ¿Ü»ð¹ýº¸´Ù ´õ ½Å·ÚÀûÀ̱⠶§¹®¿¡ ³»»ð¹ý°ú °ü·ÃµÈ ±¤¿ªÆøÀÇ ¼±ÅÃÀÌ ¿Ü»ð ¹®Á¦¿Í ¿¬°üµÇ´Â ÇÙÇÔ¼öÀÇ ¼±Åú¸´Ù Áß¿äÇÏ´Ù. ±×·¯³ª, ÀçÇö±â°£ÀÌ Àڷᱸ°£º¸´Ù Ä¿Áö°Å³ª ¶Ç´Â $200{sim}500$³â ºóµµ ¹ß»ý°ú °°Àº È®·ü °ª¿¡ ´ëÇÑ ÃßÁ¤À» ÇÏ´Â °æ¿ì´Â ÀÚ·áÀÇ ¿Ü»ðÀÌ Áß¿äÇÑ ¹®Á¦ÀÌ¸ç µû¶ó¼ ÀÌ¿¡ µû¸¥ ÇÙÇÔ¼öÀÇ ¼±Åõµ Áß¿ä½ÃµÈ´Ù. ÇÙÇÔ¼ö¿¡ µû¶ó¼´Â ¿Ü»ð¿¡ ´ëÇØ »ó´ëÀûÀ¸·Î À۰ųª Å« °ªÀÌ Á¦½Ã µÉ ¼ö ÀÖÀ¸¹Ç·Î ±ØÄ¡°ª ÃßÁ¤¿¡´Â ¾î·Á¿î Á¡ÀÌ ÀÖ´Ù. µû¶ó¼ º» ³í¹®¿¡¼´Â ÀϹÝÀûÀ¸·Î ³»»ð ¹× ¿Ü»ð¿¡µµ ÀûÇÕÇÑ ÇÙÇÔ¼ö·Î Modified Cauchy ÇÙÇÔ¼ö¸¦ Á¦½ÃÇÏ¿´´Ù. |
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| The importance of the bandwidth selection has been more emphasized than the kernel function selection for nonparametric frequency analysis since the interpolation is more reliable than the extrapolation method. However, when the extrapolation method is being applied(i.e. recurrence interval more than the length of data or extreme probabilities such as $200{sim}500$ years), the selection of the kernel function is as important as the selection of the bandwidth. So far, the existing kernel functions have difficulties for extreme value estimations because the values extrapolated by kernel functions are either too small or too big. This paper suggests a Modified Cauchy kernel function that is suitable for both interpolation and extrapolation as an improvement. |
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| Ű¿öµå |
| ºñ¸Å°³º¯¼öÀû ºóµµÇؼ®;¿Ü»ð;Modified Cauchy ÇÙÇÔ¼ö;nonparametric frequency analysis;extrapolation;Modified Cauchy kernel function; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.39, no.6, 2006³â, pp.495-502
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200629734263461)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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