±³À°¸í | °øÅë Deep Learning 2Â÷ |
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±³À°±â°£ | 2019-06-24 ~ 2019-06-26 |
±³À°½Ã°£ | 09:30~17:30(1ÀÏ 7½Ã°£, ÃÑ3ÀÏ 21½Ã°£) |
±³À°Àå | ¿µ¿ì±Û·Î¹ú·¯´× Áöµµº¸±â |
°»ç | ÇÑ´ëÈñ °»ç |
Á¤¿ø | 20¸í |
±³À°ºñ | 900,000¿ø [VAT º°µµ] |
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1ÀÏÂ÷ |
¼öÇÐÀû Á¢±Ù ¹æ¹ý (ȸ±ÍºÐ¼®, regression analysis)
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l Åë°èÀû¹æ¹ýÀ¸·Î Ç®±â - linear regression : ¼ö½Ä ¼³¸í ¹× python ½Ç½À ¹× ¼³¸í l ¼±Çü´ë¼ö(Çà·Ä)ÀÌ¿ëÇÏ¿© Ç®±â - linear algebra l Normal Equation vs Gradient Descent l ¼öÇÐÅë°èÀû¹æ¹ý vs ¸Ó½Å·¯´×¹æ¹ý l ·¦) ¿ù±Þ¿©¿Í Ä«µå»ç¿ë·®ÀÇ °ü°è¸¦ 1Â÷ÇÔ¼ö(1Ç× È¸±ÍºÐ¼®)·Î ¸ðµ¨¸µÇϱâ l ·¦) ¿ù±Þ¿©¿Í Ä«µå»ç¿ë·®ÀÇ °ü°è¸¦ ´ÙÇ×ÇÔ¼ö(´ÙÇ× È¸±ÍºÐ¼®)·Î ¸ðµ¨¸µÇϱâ |
°æ»çÇϰ¹ý(Gradient Descent), µö·¯´×ÀÇ ÇнÀ¿ø¸®
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l Gradient DescentÀÇ µ¿ÀÛ¿ø¸® l ·¦) ¿ù±Þ¿©¿Í Ä«µå»ç¿ë·®ÀÇ °ü°è¸¦ °æ»çÇϰ¹ýÀ¸·Î Ç®±â - python code ½Ç½À ¹× ¼³¸í l Universal Approximator l ÃÖÀûÈ, Global Optima, Local Optima, l OptimizerÀÇ Á¾·ù: Momentum, RMSProp, Adam, ... l Convex, Non-Convex | |
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l µö·¯´×ÀÇ ±¸Á¶ l µö·¯´×ÀÇ ÇнÀ¿ø¸® l loss ÇÔ¼ö: MSE l optimizer l ·¦) Non-linear regression (»ï°¢ÇÔ¼ö)¸¦ µö·¯´×À¸·Î ¸ðµ¨¸µ Çϱâ | |
2ÀÏÂ÷ |
µö·¯´× ÇÁ·Î±×·¡¹Ö: numpy, tensorflow, keras
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l ÆÄÀÌ½ã ÆÐŰÁö numpy l tensorflow ÇÁ·Î±×·¡¹Ö l keras ÇÁ·Î±×·¡¹Ö |
µö·¯´× Ȱ¿ë1: Classification (ºÐ·ù) ¹®Á¦
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l ·¦) ¼Ò¸®(sound) ºÐ·ù ¹®Á¦: Dog, Car, Child ¼Ò¸®(*.wav ÆÄÀÏ) ±¸ºÐÇϱâtensorflow·Î ±¸ÇöÇϱâ l keras·Î ±¸ÇöÇϱâ l ¸ðµ¨ÀÇ ÀúÀå, ·Îµù l softmax, argmax l cross-entropy loss l feature extraction | |
µö·¯´×ÀÇ ½Ç¹« & ÇÏÀÌÆÛÆÄ¶ó¹ÌÅÍ Æ©´× (hyper-parameter)
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l ÇнÀµ¥ÀÌÅÍ, Validation, Test µ¥ÀÌÅÍ ºÐÇÒ l °úÀûÇÕ (over-fitting) l Cross Validation l ÇÏÀÌÆÛÆÄ¶ó¹ÌÅÍÀÇ Á¾·ù l ÇÏÀÌÆÛÆÄ¶ó¹ÌÅÍ Æ©´×ÀÇ Àû¿ë l Dropout l Batch normalization l ·¦) ÇÏÀÌÆÛÆÄ¶ó¹ÌÅÍ Æ©´× µö·¯´× Àû¿ë | |
3ÀÏÂ÷ |
µö·¯´× µ¥ÀÌÅÍ Ã³¸® µµ±¸
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l pandas ¸¦ ÀÌ¿ëÇÑ µ¥ÀÌÅÍ Ã³¸® l ³¯Â¥ µ¥ÀÌÅÍ Ã³¸® l matplotlib - ±âº» ½Ã°¢È µµ±¸ l sns - ½Ã°¢È µµ±¸ ¼Ò°³ |
µö·¯´× Ȱ¿ë2: Anomaly Detection µ¥ÀÌÅͺм®
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l Anomaly DetectionÀ» À§ÇÑ µö·¯´× ±¸¼º ¹æ¹ý l keras·Î ±¸ÇöÇϱâ l kerasÀÇ callback ÀÌ¿ë ¹æ¹ý l confusion matrix °³³ä, ROC curve ·¦) Card Fraud Detection ¹®Á¦¸¦ µö·¯´×À» Ç®±â: kaggle.com ¹®Á¦
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´Ù¾çÇÑ µö·¯´× ÇÁ·¹ÀÓ¿öÅ© ¼Ò°³ |
l tensorflow, keras l pytorch l Azure ±â¹Ý µö·¯´× ¼Ò°³ l AWS ±â¹Ý µö·¯´× ¼Ò°³ l mxnet ¼Ò°³ |
ÇпøÀÇ ¼³¸³¤ý¿î¿µ ¹× °ú¿Ü±³½À¿¡ °üÇÑ ¹ý·ü ½ÃÇà·É¿¡ µû¶ó ´ÙÀ½°ú °°ÀÌ ¼ö°·á¸¦ ȯºÒÇØµå¸³´Ï´Ù.