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0°ÇÀÇ Èı⺸±âData Mining Techniques(µ¥ÀÌÅÍ ¸¶ÀÌ´× ±â¹ý)¿¡ ´ëÇÑ µ¥ÀÌÅÍ ºÐ¼® Âü°íÀÚ·áÀÔ´Ï´Ù.
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data mining techniques ¥°.µ¥ÀÌÅ͸¶ÀÌ´× 3
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data mining is the exploration and analysis, by automatic or semiautomatic means,
of large quantities of data in order to discover meaningful patterns and rules.
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5 ÆÇ º° (classification)
3.µ¥ÀÌÅÍ ¸¶ÀÌ´×ÀÇ À¯¿ë¼º
±â ¼ú (description) ±º Áý (clustering) À¯»ç±×·ì (affinity group) ¿¹ Ãø (prediction) Ãß Á¤ (estimation)
decision tree, memory-based reasoning, link analysis
market basket analysis cluster analysis association rules decision tree, memory-based reasoning, link analysis, neural network neural network task technique 6 bottom-up approach the data suggests new hypotheses to test top-down approach hypotheses dictate the data to be analyzed generate good ideas determine what data would allow these hypotheses to be tested
3.locate the data
4.prepare the data for analysis
5.build computer models based
on the data
6.evaluate computer models to
confirm or reject hypotheses Áö½Ä ¹ß°ß (knowledge discovery) °¡¼³ °ËÁ¤ (hypothesis testing)
4.µ¥ÀÌÅÍ ¸¶ÀÌ´× ¹æ¹ý·Ð
directed method
-to explain relationships
1.identify sources of
reclassified data
2.prepare data for analysis
3.build and train a computer
model
4.evaluate the computer
model undirected method to recognize relationships identify sources of data prepare data for analysis build and train a computer model
5.evaluate the computer model (ÀÌÇÏ »ý·«)
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