what is "big data" ?
Post on 25-Dec-2014
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Big Data
What is〝Big Data〞 ?
When you go grocery shopping.
• When did you buy ?
• How did you pay ?
• What did you buy ?
• Where did you go ?
• Who ?
collect about you
• a lot of data
• Includes useful information
• knows why did you do ?
The 〝Big Data〞is …
Surprised !!
Features of〝Big Data〞
Features
+
Volume
Variety
Velocity
• 100 TB(terabyte) ~ PB(petabyte)
– Terabyte (TB) 1TB = 1024 GB
– Petabyte (PB) 1PB = 1024 TB
Volume
X 1024
• that real times
Velocity
• many kinds of situation
• age, sex, role …
• season, vacation, memorial day …
Variety
How to collect ?
• record shopping list
• your member data
If you enter the supermarket…
• find your location by IP
• record when did you log in
• your route/clicks on the web site
If you log in the web site…
You will receive a lot of DM
For example
• Christmas
–the shopping season
–12/18 ~ 12/29
Example - marketing
– Captcha ?
Example - eBook
Q & A
THANK YOU !!
• E-mail – x8892965@yahoo.com.tw
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