data를 적절한 형태로 변환한후 data에 일반적인 mining 기술을 적용 시킨다.
1.2 web usage mining의 구성
1.전처리단계(preprocessing)
2.패턴 탐색단계( pattern discovery)
3.패턴 분석단계(pattern analysis)
데이터를 수집하고, 수집된 web data를 적절한 형태로 변환한후 data에 일반적인 mining 기술을 적용 시
data is hard to arrange in integrated structure.
ex) video, music, text message of social media, medical record etc.
Velocity
The time required to distribution and application after data generation shorten from several hours~ weeks to minutes, seconds.
ex) The news of Bin Laden's death retwitted 5000 per a minute
Now the world is in "Big Data" environment which is explosively increa
data revenue grew 32,600% and the total subscriptions grew 563%. Although, Especially, China and India were late to the party, they caught up with the western world during the second half of the decade and eventually surpassed all nations becoming number one and two nations by subscriptions respectively. In 2006, China Mobile became the most valuable operator. Mobile devices went significant tran
world economy
could fall into a double-dip recession or recovery.
1. What is?
‘Double-dip Recession’
A double-dip recession means that when the economy emerges from the recession with a short period of growth but quickly falls back into recession. It is called ‘W-shaped recession’ as its approximate shape economic data make in graphs during recessions are similar to alphabet
worldcup park
Before1978 used for field-farming before landfill
1978.3.18 allow to a plan that waste disposal site
1993.3.19 closedown the waste disposal site
1996.12.31 start the construction of stabilize the disposal site
2000.11.11 start the World cup park construction
2002.5.1 open the worldcup park
3) Establishing the World Cup Stadium
Establishment of World Cup Stadium refle