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Çѱ¹¼öÀÚ¿øÇÐȸ / v.36, no.6, 2003³â, pp.1025-1033
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¼öÀ§-À¯·®°î¼±À» À§ÇÑ ºñ¸Å°³ º¯¼öÀû Kernel ȸ±Í¸ðÇü
( Nonparametic Kernel Regression model for Rating curve ) |
| ¹®¿µÀÏ;Á¶¼ºÁø;Àü½Ã¿µ; ¼¿ï½Ã¸³´ëÇб³ µµ½Ã°úÇдëÇÐ Åä¸ñ°øÇаú;¼¿ï½Ã¸³´ëÇб³ Åä¸ñ°øÇаú;¿ø±¤´ëÇб³ °ø°ú´ëÇÐ Åä¸ñȯ°æµµ½Ã°øÇкÎ;
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| ¼ö°ø±¸Á¶¹°ÀÇ ¼³°è¸¦ ºñ·ÔÇÏ¿©, ¼öÀÚ¿ø ºÐ¾ßÀÇ ±â¼úÀû ¼³°èÀÇ ±âÃÊ´Â ¼ö¹®ÀÚ·áÀÇ Ã³¸®¿Í ºÐ¼®¿¡ Áß½ÉÀ» µÎ°í ÀÖ´Ù°í ÇÒ ¼ö ÀÖ´Ù. ¼ö¹® ÀÚ·áÀÇ ºÐ¼®¹æ¹ý Áß °¡Àå º¸ÆíÀûÀ̸鼵µ Áß¿äÇÑ ¹æ¹ýÀº ÀÚ·áµéÀÇ °ü°è¸¦ µµ½ÄÀûÀ¸·Î ±Ô¸íÇϴ ȸ±ÍºÐ¼®ÀÌ´Ù. ¼öÀ§-À¯·® °ü°è°î¼±°ú °°Àº ¼ö¹® ÀÚ·á¿¡ ´ëÇÑ ±âÁ¸ÀÇ ¸Å°³º¯¼öÀû ȸ±Í¸ðÇüÀÌ °®´Â ´ÜÁ¡Àº ÀÚ·áÀÇ Æ¯¼º¿¡ µû¶ó, º¹¼öÀÇ È¸±Í½ÄÀÌ »êÁ¤µÇ°Å³ª µ¿ÀÏÀÚ·á¿¡ ´ëÇØ¼µµ ¼·Î ´Ù¸¥ ȸ±Í½ÄÀÌ »êÁ¤µÊÀ¸·Î½á ½Å·ÚÇÒ ¼ö Àִ ȸ±Í°î¼±À» ¸¸µé±â°¡ ¾î·Æ´Ù´Â °ÍÀÌ´Ù. ÀÌ¿¡ ºñÇØ ÁÖ¾îÁø ÀÚ·á¿¡ ÀÇÇØ µµÃâµÇ´Â kernel ȸ±Í¸ðÇüÀº ÀÚ·áÀÇ Æ¯¼º°ú °æÇ⼺À» ÀûÀýÈ÷ Ç¥ÇöÇØ ÁÙ ¼ö ÀÖ´Â ¹æ¹ýÀÌ´Ù. º» ³í¹®¿¡¼´Â ºñ¸Å°³º¯¼öÀû ¹æ¹ýÀÎ kernel ȸ±Í¸ðÇüÀ» ºÐ¼®Çϰí, kernel ȸ±Í¸ðÇüÀÇ Áß¿ä ÀÎÀÚÀÎ bandwidthÀÇ ¼±Åà ¹æ¹ý¿¡ µû¸¥ kernel ȸ±Í¸ðÇüÀÇ Æ¯¼º¿¡ ´ëÇØ ºñ±³ ºÐ¼®ÇÏ¿´´Ù. |
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| In common with workers in hydrologic fields, scientists and engineers relate one variable to two or more other variables for purposes of predication, optimization, and control. Statistics methods have improved to establish such relationships. Regression, as it is called, is indeed the most commonly used statistics technique in hydrologic fields; relationship between the monitored variable stage and the corresponding discharges(rating curve). Regression methods expressed in the form of mathematical equations which has parameters, so called parametric methods. some times, the establishment of parameters is complicated and uncertain. Many non-parametric regression methods which have not parameters, have been proposed and studied. The most popular of these are kernel regression method. Kernel regression offer a way of estimation the regression function without the specification of a parametric model. This paper conducted comparisons of some bandwidth selection methods which are using the least squares and cross-validation. |
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| Ű¿öµå |
| ºñ¸Å°³º¯¼öÀû;ȸ±Í¸ðÇü;¼ö¹®ÇÐÀû ÀÀ¿ë;¼öÀ§-À¯·®°î¼±;nonparametric;regression;hydrologic application;rating curve; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.36, no.6, 2003³â, pp.1025-1033
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311922122574)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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