# Slide 1 What HunchLab Is…. NOT a way to understand Igor Look at crime density changes Get notified about them Get more information IS a new way to:

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Slide 1 What HunchLab Is…. NOT a way to understand Igor Look at crime density changes Get notified about them Get more information IS a new way to:

Slide 2 Police Captain as Data Server

Slide 3 A Pin Map

Slide 4 A Visualization Solution Becomes a Problem 1.5 million incidents per year Around 40 crime classifications Approximately 6900 sworn officers

Slide 5 A Classic Problem – The “Data Tornado” By Golly Toto, it’s a twister!

Slide 6 Where Do They Clump? From http://data.baltimoresun.com/crime/anne_arundel/accident-person-injured/?mode=heat (not HunchLab)http://data.baltimoresun.com/crime/anne_arundel/accident-person-injured/?mode=heat

Slide 7 ? What We Really Want to Know – How are the Densities CHANGING? Crimes 8/16/2008 – 8/22/2008 Crimes 8/23/2008 – 8/30/2008

Slide 8 How Do We Figure out Density Change? Take an area or *many* areas to evaluate Use statistics to compare historical norms to current densities But… how? Call crimes balls in a bag.

Slide 9 That’s Right, Balls In a Bag That’s Right, Balls in a Bag A bag has 20 black balls and 80 white balls. Choose 5 at random. What is the chance of getting 3 black balls? Vary number of balls chosen and you get a Hypergeometric Distribution

Slide 10 Crimes -> Balls -> Probabilities Crimes  Balls  Probabilities

Slide 11 Lather, Rinse, Repeat

Slide 12 Enter HunchLab

Slide 13 Using HunchLab - Notification Hmmmm…

Slide 14 Using HunchLab – Results Viewing

Slide 15 Using HunchLab – Graphing Sixteen you say? By Jove!

Slide 16 Using HunchLab – Drill Down 7001 Bridgeport Wy W? Of Course!

Slide 17 Using HunchLab – Hunch Creation Our villain is probably active here too! Let’s check…

Slide 18 Using HunchLab – Mass Hunch Creation

Slide 19 Using HunchLab – Search You’ve been working hard Watson…

Slide 20 Future… Thanks to Andy Warhol

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