Explorable Visual Analytics (EVA) Interactive Exploration ......Tuesday, June 23rd 2015 Explorable...
Transcript of Explorable Visual Analytics (EVA) Interactive Exploration ......Tuesday, June 23rd 2015 Explorable...
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Explorable Visual Analytics (EVA) Interactive Exploration of LEHD
Saman Amraii - Amir Yahyavi Carnegie Mellon University
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Motivation
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Motivation 1854 Cholera outbreak in Soho, London 616 Dead
No Germ Theory Miasmatic Theory (bad air)
John Snow Spread through water supply Study of water didn’t help
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Motivation Drew a map Broad Street Pump
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Motivation
John Snow memorial and public house on Broadwick Street, Soho
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Solved by removing a handle Political controversy Officials rejected the theory Accepted 12 years later in another outbreak
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Scientific Method
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SUPPORT HYPOTHESIS AND MODEL
REFUTE HYPOTHESIS AND MODEL
START
OBSERVATIONS
MODELS
HYPOTHESIS
NULL HYPOTHESIS
EXPERIMENT
INTERPRETATION
DON’T END HERE
DON’T END HERE
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Scientific Method
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Hypothesis Data Collection
Analysis: Interaction, Visualization +Contextual Knowledge
New Hypothesis
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Scientific Method
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Hypothesis Data Collection
Analysis: Interaction, Visualization +Contextual Knowledge
New Hypothesis
Big Data Data Production >>>>>> Data Consumption
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Sensemaking Loop
This loop should happen fast, otherwise we hesitate to explore or lose our train of thought
Visualization Interaction
Contextual Knowledge
New Hypothesis Repeat
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The Explorables Collaborative
http://explorables.cmucreatelab.org/
An effort to understand the challenges in visualizing, exploring, and analyzing large and complex data.
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Explorable Visual Analytics (EVA) http://eva.cmucreatelab.org
Goal: Improving Hypothesis Generation
Easy Exploration
Sharing Discoveries
Quick Intuitions Testing
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Explorable Visual Analytics (EVA)
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EVA Demo↗
Data? large, complex, high spatial and temporal resolution Opportunities for real and meaningful discoveries
Census Longitudinal Employer-Household Dynamics (LEHD) http://lehd.ces.census.gov/
Contiguous US Hundreds of millions of data points Tens of dimensions 10 years (2002-2011)
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Technical Information
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SERVER CLIENT
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Technical Information Big Technical Challenges: Massive size of Data: Big Data Processing on Server + Client Side Analysis
Open Source https://github.com/CMU-CREATE-Lab/EVA-for-Census
Compatibility: Any Modern Desktop Browser (Any OS, 1~2 GB of RAM)
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Key Aspects Improving Hypothesis Generation, How? Scalable: Interactive visualization of large, high-dimensional
datasets High Resolution: Don’t aggregate if you can Less data loss Intuitive: Intuitive navigation in high dimensional space Responsive: Removing the delay between forming a hypothesis
and seeing the visualization Aiding our limited working memory Accessible: Using the web with no additional installation Shareable: Easy to share explorable discoveries and tell a story
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Why?
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DISCOVERY
Human-Centered Data Mining
Curiosity-Driven Discovery
Collaborative Exploration
DISSEMINATION
Guided Tours
Participatory Learning
Accessibility
Data-Driven Decision Making
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Thank You [email protected] [email protected]
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