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Çѱ¹¼öÀÚ¿øÇÐȸ / v.32, no.4, 1999³â, pp.437-445
MallowsÀÇ $C_L$ Åë°è·®À» ÀÌ¿ëÇÑ ¼ö¹®ÀÀ´ä ÃßÁ¤
( Hydrologic Response Estimation Using Mallows' $C_L$ Statistics )
¼º±â¿ø;½É¸íÇÊ; °Ç±¹´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;;
 
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ºñ¸ð¼ö´ÉÇüȸ±ÍºÐ¼®¹ýÀ» ÀÌ¿ëÇÏ¿© ¼ö¹®ÀÀ´äÀ» ÃßÁ¤ÇÏ´Â ¹æ¾È¿¡ ´ëÇÏ¿© ¿¬±¸ÇÏ¿´´Ù. ÀÀ´äÀ» ÃßÁ¤Çϱâ À§ÇÏ¿© Æò±ÕÁ¦°ö¿¹Ãø¿ÀÂ÷¿¡ ´ëÇÑ ÃßÁ¤·®ÀÎ CL Åë°è·®À» ÃÖ¼ÒÈ­ÇÏ´Â ¹æ¹ýÀ» Àû¿ëÇÏ¿´À¸¸ç °¡ÁßÇà·ÄÀº ÀüÅëÀûÀ¸·Î À̿뵵´Â ´ÜÀ§Çà·Ä°ú Ư¼öÇÑ ÇüÅÂÀÎ Çà·ÄÀÎ Laplacian Çà·ÄÀ» °¢°¢ ÀÌ¿ëÇÏ¿© ºñ±³ÇÏ¿´´Ù. ¶ÇÇÑ ÃßÁ¤ÀÀ´äÀÇ ¿ÀÂ÷ºÐ»êÀ» ÃßÁ¤ÇÏ´Â ¹æ¾È¿¡ ´ëÇÑ °ËÅäµµ ½ÇÇàÇÏ¿´´Ù. ÇÕ¼ºÀÚ·á¿Í ½ÇÁ¦ÀÚ·á¿¡ ´ëÇÑ ºÐ¼® °á°ú °¡ÁßÇà·Ä°ú Laplacian Çà·ÄÀ» ¿ÀÂ÷ºÐ»êÀº Æí±â ¼öÁ¤µÈ ÃßÁ¤Ä¡¸¦ ÀÌ¿ëÇÏ´Â °ÍÀÌ ÁÁÀº °á°ú¸¦ º¸¿© ÁÖ¾ú´Ù. º» ¿¬±¸¿¡¼­ Á¦½ÃµÈ ÀýÂ÷ ¹× ¹æ¹ýÀº ¼ö¹®ÀÀ´ä ºÐ¸®¿¡ À־ ¾ÈÁ¤ÀûÀ̰í È¿À²ÀûÀ¸·Î Àû¿ëµÉ ¼ö ÀÖÀ» °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù.
The present paper describes the problem of hydrologic response estimation using non-parametric ridge regression method. The method adapted in this work is based on the minimization of the $C_L$ statistics, which is an estimate of the mean square prediction error. For this method, effects of using both the identity matrix and the Laplacian matrix were considered. In addition, we evaluated methods for estimating the error variance of the impulse response. As a result of analyzing synthetic and real data, a good estimation was made when the Laplacian matrix for the weighting matrix and the bias corrected estimate for the error variance were used. The method and procedure presented in present paper will play a robust and effective role on separating hydrologic response.
 
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¼ö¹®ÀÀ´ä;ÃßÁ¤;CL Åë°è·®;´ÉÇüȸ±ÍºÐ¼®;hydrologic response estimation;$C_L$ Statistics;ridge regression;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.32, no.4, 1999³â, pp.437-445
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911920063201)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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