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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö > Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö ¼ÒÇÁÆ®¿þ¾î ¹× µ¥ÀÌÅÍ °øÇÐ

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Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) ½Ã°è¿­ µ¥ÀÌÅÍ¿Í ·£´ý Æ÷·¹½ºÆ®¸¦ È°¿ëÇÑ ½Ã°£´ç Ãʹ̼¼¸ÕÁö ³óµµ ¿¹Ãø
¿µ¹®Á¦¸ñ(English Title) Hourly Prediction of Particulate Matter (PM2.5) Concentration Using Time Series Data and Random Forest
ÀúÀÚ(Author) À̵æ¿ì   À̼ö¿ø   Deukwoo Lee   Soowon Lee  
¿ø¹®¼ö·Ïó(Citation) VOL 09 NO. 04 PP. 0129 ~ 0136 (2020. 04)
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(Korean Abstract)
Ãֱ٠ȯ°æ ¹®Á¦¿¡¼­ Áß¿äÇÑ È­µÎ·Î ¶°¿À¸¥ Ãʹ̼¼¸ÕÁö(PM2.5)´Â ¹Ì¼¼¸ÕÁö(PM10)º¸´Ùµµ ÀÛÀº ºÎÀ¯¹°ÁúÀÌ´Ù. PM2.5´Â ¾È±¸³ª È£Èí±â ÁúȯÀ» ÀÏÀ¸Å°¸ç ³úÇ÷°ü¿¡±îÁö ħÅõÇÒ ¼ö À־ ½Ã°£º°·Î ¼öÄ¡¸¦ ¿¹ÃøÇÏ¿© ´ëºñÇÏ´Â °ÍÀÌ Áß¿äÇÏ´Ù. ±×·¯³ª PM2.5ÀÇ »ý¼º°ú À̵¿¿¡ °üÇÑ ¸íÈ®ÇÑ ¼³¸íÀÌ ¾ÆÁ÷±îÁö´Â Á¦½ÃµÇÁö ¾Ê°í À־ ¿¹Ãø¿¡ ¾î·Á¿òÀÌ µû¸¥´Ù. µû¶ó¼­ PM2.5 ¿¹Ãø»Ó¸¸ ¾Æ´Ï¶ó ¿¹Ãø °á°ú¿¡ ´ëÇÑ ¼³¸í·ÂÀ» °®´Â ¿¹Ãø ¹æ¹ýÀÌ Á¦½ÃµÉ ÇÊ¿ä°¡ ÀÖ´Ù. º» ¿¬±¸¿¡¼­´Â ¼­¿ï½ÃÀÇ ½Ã°£´ç PM2.5¸¦ ¿¹ÃøÇÏ°íÀÚ Çϸç, À̸¦ À§ÇØ °¢±â ´Ù¸¥ Áö»ó°üÃø µ¥ÀÌÅ͸¦ ½Ã°è¿­·Î Àüó¸®ÇÏ°í ºÎÆ®½ºÆ®·¦ ¼ö¸¦ Á¶Á¤ÇÑ ·£´ý Æ÷·¹½ºÆ®(Random Forest)¸¦ µ¥ÀÌÅÍ ÇнÀ ¹× ¿¹Ãø¿¡ »ç¿ëÇÏ´Â ¹æ¹ýÀ» Á¦¾ÈÇÑ´Ù. ÀÌ ¹æ¹ýÀº ¿¹Ãø ¸ðµ¨ÀÌ ÀÔ·Â µ¥ÀÌÅÍÀÇ ½Ã°¢º° Á¤º¸¸¦ ±ÕÇü ÀÖ°Ô ÇнÀÇÏ°Ô ÇÏ¸ç ¿¹Ãø °á°ú¿¡ ´ëÇÑ ¼³¸íÀÌ °¡´ÉÇÏ´Ù´Â ÀåÁ¡À» °®´Â´Ù. ¿¹Ãø Á¤È®µµ Æò°¡¸¦ À§ÇØ ±âÁ¸ ¸ðµ¨°úÀÇ ºñ±³½ÇÇèÀ» ¼öÇàÇÑ °á°ú Á¦¾È ¹æ¹ýÀº ¸ðµç ·¹ÀÌºí¿¡¼­ °¡Àå ¶Ù¾î³­ ¿¹Ãø ¼º´ÉÀ» º¸¿´À¸¸ç, PM2.5ÀÇ »ý¼º°ú °ü·ÃµÈ º¯¼ö¿Í Áß±¹ÀÇ ¿µÇâ°ú °ü·ÃµÈ º¯¼ö°¡ ¿¹Ãø °á°ú¿¡ Áß¿äÇÑ ¿µÇâÀ» ¹ÌÄ¡´Â °ÍÀ» º¸¿©ÁÖ¾ú´Ù.
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(English Abstract)
PM2.5 which is a very tiny air particulate matter even smaller than PM10 has been issued in the environmental problem. Since PM2.5 can cause eye diseases or respiratory problems and infiltrate even deep blood vessels in the brain, it is important to predict PM2.5. However, it is difficult to predict PM2.5 because there is no clear explanation yet regarding the creation and the movement of PM2.5. Thus, prediction methods which not only predict PM2.5 accurately but also have the interpretability of the result are needed. To predict hourly PM2.5 of Seoul city, we propose a method using random forest with the adjusted bootstrap number from the time series ground data preprocessed on different sources. With this method, the prediction model can be trained uniformly on hourly information and the result has the interpretability. To evaluate the prediction performance, we conducted comparative experiments. As a result, the performance of the proposed method was superior against other models in all labels. Also, the proposed method showed the importance of the variables regarding the creation of PM2.5 and the effect of China.
Å°¿öµå(Keyword) Ãʹ̼¼¸ÕÁö   PM2.5   ½Ã°è¿­ µ¥ÀÌÅÍ   ±â°èÇнÀ   ·£´ý Æ÷·¹½ºÆ®   Particulate Matter   PM2.5   Time Series Data   Machine Learning   Random Forest  
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