Big Data

Hypodermic syringe theory

Assuming there is a direct effect between content that people are feed and the actions that they do, basically stating that the media can influence how people think and behave.

Two step flow theory

Ideas flow from mass media to opinion leaders, and from them to a wider population.

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The term was coined in 2001 by Doug Laney

Big three Vs

Volume, velocity, and variety

Where does it come from?

-Machines - IoT sensors, environment sensors, aircrafts, smart cities, etc.

-People - Social media, Tweets, Photos, Media in general.

-Organisations - Transactions, Banking, Shopping

Rise in Big Data.

-Cloud computing is normalised

-New tools and platforms that's help civilians synthesise data

-Monetisation/ commercial gain

-Increasing concerns such as IP address and privacy

-Rise in smart cities and decrease in carbon foot print 

Structured data set - Spreadsheet, labelled, columns and very structured

Unstructured data - An email, photo, text file, audio, websites, which are very tricky to process

Seven Vs

1. Volume

-Volume defines how much data we have

2. Velocity

-Velocity represents the speed at which data is processed and becomes accessible.

3. Variety

-Variety describes one of the biggest challenges of big data. The insights may come without structure. The total asset may include many data types, from XML to video to SMS. Organizing the data in a meaningful way is no simple task when the data itself changes rapidly.

4. Variability

-If the meaning constantly changes, it can significantly impact your data homogenization.

5. Veracity

-Veracity ensures the data is accurate.

6. Visualisation

-Using charts and graphs to visualize large amounts of complex data is much more effective in conveying meaning than spreadsheets and reports chock-full of numbers and formulas.

7. Value

-The value of your data collected

The data protection act

(GDPR)

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Variety of data on Instagram

-The type of content. eg: Video, Photo

-Searches, Transactional

-Messaging, Communications, and shared content 

-Accounts, people hashtags, and pages you are connected to