LinkedIn Meetup - InMaps

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This is a presentation on the technology behind InMaps presented by Mathieu Bastian at a meetup organized at LinkedIn, Mountain View.

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LinkedIn Meetup - InMaps

  1. Data Visualization Group in Bay AreaMeetup - April 2011Mathieu Bastian, Data Scientist
  2. Introduction• Visualization of your LinkedIn Network• A map of my career, leverage communities• Big data, process 100M+ unique networks
  3. 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 ...
  4. Interactive Visualization Demoinmaps.linkedinlabs.com
  5. Manifesto• Visually attractive• Relevant• Interactive
  6. Manifesto• Visually attractive• Relevant• Interactive ... And compatible with IE7+ and iPad
  7. 1. Data processing• Pre compute what’s possible on Hadoop• Force Directed layout on millions graphs• Data stored on Voldemort• Stack in Ruby, Java, LinkedIn APIs
  8. 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
  9. Seadragon• Tiles (256px)• Zoom & Pan• IE6+
  10. RaphaelJS• Interactive• SVG & VML• IE6+
  11. Map Design• Layout and distances
  12. Map Design• Curved edges and density
  13. Map Design• Text readability and positioning • Font between 10 and 14px • 4 px outline, 80% alpha • 2px vertical shift • Avoid overlap
  14. Q&Ahttp://inmaps.linkedinlabs.com

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