Great lecture

with DIdi's 21 million cars driving data in real-time, we can optimize the traffic with improvement in traffic lights system

companies with more users gather more data, offer better products, and so on

companies need to improve IT data processing capabilities

what is cloud computing: model of network access to computing resources with minimal mgt effort.

• models: private cloud, community cloud, public cloud, hybrid cloud
• service models: Software as a Service, Platform as a Service, Infrastructure as a Service

ting yi dianer cuo le

听一点儿错了老师。

the lecture is good. Maybe the U.S used this virus in china. I recently saw a news trump blams china for outbreak. But Maybe the U.S will be responsible for this pandemic. 

Too much stucking, am using too much time to learn because the video are stucking 

i think media also play a vital role in idealogical sorce development

The first traditional management I Ching

Chinese traditional culture

could not understand big data variety in humans? 14:14???

This already explined by professor early, it is really a very effectuive method 

Synthetic polymers

Natural polymers

very nice method to regenerate  mask

Mthods for making ploymers are:

Additional Polymerization

condensation polymerization

... Our responsibility is to preserve natural things

ionic bond

covalent bond (NaCl)

Polar(water)

Vanderwall force

same class belong to same clusters

1) Minkowski Distance

Manthan Distance

Eucledian Distance

Cosine measure

well explained

E is correct

D is correct

IKCEST Conferences platform from website

cloth pattern

A: is/was/has

V1: Volume

V2: Varies

V3: Velocity

V4: Veracity

thomas watson: wrong prediction

Moore's law : correct prediction

Gordon Bell law : correct prediction

Unpredictable Workloads cause the resource provisioning problems.