What is Data Science

Data Science: Jordan Boyd-GraberUniversity of MarylandJANUARY 12, 2018

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Mathematical Foundations

Data

X

Answers

Y

Hidden Structure

Z

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Will NetFlix user 24601 like Transformers?

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Will NetFlix user 24601 like Transformers?

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How do you know?

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100,000+  Titles  

~10  Million  Ac

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Training  Data  

Tes,ng  Data  

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Group many images and determine the number of groups

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Which genes are associated with a disease? How can expression values be

used to predict survival?

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Is it likely that this stock was traded based on illegal insider information?

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Who will vote and for whom?

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Is this spam?

Subject: CHARITY.Date: February 4, 2008 10:22:25 AM ESTTo: undisclosed-recipients:;Reply-To: s.polla@yahoo.fr

Dear Beloved,

My name is Mrs. Susan Polla, from ITALY. If you are a christian andinterested in charity please reply me at : (s.polla@yahoo.fr) for insight.Respectfully,Mrs Susan Polla.

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Where are the faces?

STAT 151B

AdministrativeInfo

Introduction

Example: face detection

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Data contain patternsthat can help us solve problems.

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