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DataVisualization Group in Bay Area
Meetup - April 2011
Mathieu Bastian, Data Scientist
Introduction
• Visualization of your LinkedIn Network
• A map of my career, leverage communities
• Big data, process 100M+ unique networks
Introduction
• Visualization of your LinkedIn Network
• A map of my career, leverage communities
• Big data, process 100M+ unique networks
• We need a Data Science Team
...
InteractiveVisualization
Demo
inmaps.linkedinlabs.com
Manifesto
• Visually attractive
• Relevant
• Interactive
Manifesto
• Visually attractive
• Relevant
• Interactive
...And compatible with IE7+ and iPad
1. Data processing
• Pre compute what’s possible on Hadoop
• Force Directed layout on millions graphs
• Data stored onVoldemort
• Stack in Ruby, Java, LinkedIn APIs
2.Visualization
• Large networks, 10 000+ bezier curves
• We tried SVG, Canvas and more...
• We took the Google Maps approach
• Use images and add interactivity layer
• Seadragon + RaphaelJS
Seadragon
• Tiles (256px)
• Zoom & Pan
• IE6+
RaphaelJS
• Interactive
• SVG &VML
• IE6+
Map Design
• Layout and distances
Map Design
• Curved edges and density
Map Design
• Text readability and positioning
• Font between 10 and 14px
• 4 px outline, 80% alpha
• 2px vertical shift
• Avoid overlap
Q&A
http://inmaps.linkedinlabs.com

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LinkedIn InMaps, Data Visualization Meetup 2011