Why Data Science?

September 22, 2015

Hello!I am Ryan Swanstrom

Data Scientist and Blogger

You can find me (just about everywhere) at:@ryanswanstrom

More About Ryan

◎ Blogger at Data Science 101◎ Employed by large bank◎ PhD from SDSU◎ Guest Blogger◎ Influential On Twitter (for data science)◎ Thought Leader by UC Berkeley

1.Data ProductsEnd Goal of Data Science

DataProduct

Any tool created with the help of data to

make a more informed decision

Examples

◎ Dashboards◎ Spreadsheets (sometimes)◎ Emails (sometimes)◎ People You May Know◎ Movies to Watch◎ Many Others

2.Data ScienceWhat is it?

“Data Science is statistics on a Mac

@BigDataBorat2013

“Data Scientist (n.) - Person who is

better at statistics than any software engineer and better at software engineering than any

statistician. @josh_wills

2012

“A Data Scientist is a statistician

who lives in San Francisco

Unknown

Drew Conway’s Venn Diagram

http://drewconway.com/zia/2013/3/26/the-data-science-venn-diagram

Yanir Seroussi

http://yanirseroussi.com/2014/10/23/what-is-data-science/

Really, what is data science? According to NIST

Data science is the empirical synthesis of actionable knowledge from raw data through the complete data lifecycle process.

According to NIST Big Data Framework

Simpler Definition of Data Science

The creation of data products

Data Science Takes a Team

Similar to Sports

Specialization is important

One person cannot do it all

3.BIGDATABig Data ≠ Data Science

Three V’s of Big Data

◎ Volume

◎ Velocity

◎ Variety

“Data Science doesn’t need big

data

Ryan SwanstromSept. 22, 2015

4.Data ScienceWorkflowHow to get there?

No Perfect Workflow

QuestionData

Preparation & Cleaning

Data Product

Analysis & Modeling

5.Data ScienceGoalsWhy do data science?

Get All Three

◎ Descriptive

◎ Predictive

◎ Prescriptive

Thanks!I am hoping for questions?

You can find me everywhere at:@ryanswanstrom

Credits

Special thanks to all the people who made and released these awesome resources for free:◎ Presentation template by SlidesCarnival◎ Photographs by Unsplash & Death to the Stock Photo

(license)