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使用深度学习方法从MRI数据中自动识别阿尔茨海默病的面向主题论文研究
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2.2 面向主题
图2-6 数据仓库数据用主要主题领域(这里用顾客)来组织
第2章 数据仓库环境 23
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顾客主题
基本顾客数据 基本顾客数据 顾客活动
1 9 8 5~1 9 8 7 1 9 8 8~1 9 9 0 1 9 8 6~1 9 8 9
顾客活动细节 顾客活动细节
1 9 8 7~1 9 8 9 1 9 9 0~1 9 9 1
customer ID
from date
to date
name
address
phone
dob
sex
⋯
customer ID
from data
to date
name
address
credit rating
employer
dob
sex
⋯
customer ID
month
number of transactions
average tx amount
tx high
tx low
txs cancelled
⋯
customer ID
activity date
amount
location
for item
invoice no
clerk ID
order no
⋯
customer ID
activity date
amount
location
order no
line item no
sales amount
invoice no
deliver to
⋯