Transcript HunchLab: A New Tool For Crime Analysis

What HunchLab Is….
IS a new way to:
• Look at crime density changes
• Get notified about them
• Get more information
NOT a way to understand Igor
Slide 1
Police Captain as Data Server
Slide 2
A Pin Map
Slide 3
A Visualization Solution Becomes a Problem
• 1.5 million incidents per year
• Around 40 crime classifications
• Approximately 6900 sworn officers
Slide 4
A Classic Problem –
The “Data Tornado”
By Golly Toto, it’s a twister!
Slide 5
Where Do They Clump?
From http://data.baltimoresun.com/crime/anne_arundel/accident-person-injured/?mode=heat (not HunchLab)
Slide 6
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 7
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 8
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 9
Crimes -> Balls -> Probabilities
Crimes  Balls  Probabilities
Slide 10
Lather, Rinse, Repeat
Lather, Rinse, Repeat
Slide 11
Enter
HunchLab
Slide 12
Using HunchLab - Notification
Hmmmm…
Slide 13
Using HunchLab – Results Viewing
Slide 14
Using HunchLab – Graphing
Sixteen you say?
By Jove!
Slide 15
Using HunchLab – Drill Down
7001 Bridgeport Wy W?
Of Course!
Slide 16
Using HunchLab – Hunch Creation
Our villain is probably active here too!
Let’s check…
Slide 17
Using HunchLab – Mass Hunch Creation
Slide 18
Using HunchLab – Search
You’ve been working hard Watson…
Slide 19
Future…
Thanks to
Andy Warhol
Slide 20