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Empowering Semantic Zooming with Hadoop and HBase
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Empowering Semantic Zooming with Hadoop and HBase

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  • 1. Empowering Semantic Zooming with Hadoop and HBase Kitenga reinventing informationMark DavisFounder/CTO
  • 2. The  History  of  Big  Data  Interfaces  
  • 3. $ hadoop fs -cat stuff
  • 4. ¡  Geometrical  Zooming  zooms  the  geometry   of  the  view  ¡  Semantic  Zooming  zooms  the  meaning  of   the  view:   §  Online  maps:  only  show  roads  and  rivers  as  the   viewpoint  gets  closer   §  Show  the  right  level  of  detail  for  the  zoom  point   §  Apply  lenses  to  the  data  
  • 5. ¡  Spatial  metaphors  may  require  additional   cognitive  load…  
  • 6. ¡  Hyperbolic  Trees  and  lensing  (Furnas  86,   XeroX  PARC):  Focus  +  Context  ¡  Pad  and  Pad++:  Zoomable  User  Interfaces   (1991)  ¡  Cat-­‐a-­‐Cone,  Themeriver  ¡  Zoomable  maps  
  • 7. Magnitudes   Geospatial   View  HDFS  HBase  
  • 8. HBase   ZettaVox   JSONVisualization  Layer   Services   (HTML5,  WebGL)   (64  function   API)   caching Hadoop  
  • 9. ¡  Level  1:  HDFS  file  sizes  ¡  Level  2:  HDFS  file  content  magnitudes  ¡  Level  3:  HDFS  file  content  structure  ¡  Level  4:  HDFS  file  content  fine  structure  ¡  Level  5:  HDFS  file  content  latent  structure  
  • 10. ¡  Dynamic  calculation  of  requirements  for   ZettaZoom  levels  ¡  Caching  of  intermediary  results  with   timestamps  ¡  Recalculation  for  out-­‐of-­‐date  data  
  • 11. ¡  Big  Data  analysis  requires  new  tools  for   visualization  and  data  access  ¡  Semantic  Zooming  supports  multi-­‐level   interrogation  of  Big  Data  resources  ¡  Lenses  support  dynamic  wiring  of   visualizations  to  data  values  
  • 12. Questions?  
  • 13. Thank You! Page 19

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