VASA Interactive Computational Steering of Large Asynchronous Simulation Pipelines for Societal Infrastructure SUNGAHN KO JIEQIONG ZHAO JING XIA SHEHZAD AFZAL XIAOYU WANG GREG ABRAM NIKLAS ELMQVIST LEN KNE DAVID VAN RIPER KELLY GAITHER SHAUN KENNEDY WILLIAM TOLONE WILLIAM RIBARSKY DAVID S. EBERT
34
Embed
VASA: Visual Analytics for Simulation-based Action
Slides from our IEEE VAST 2014 talk at IEEE VIS on VASA, a visual analytics system for interactive computational steering of pipelines of asynchronous simulation models.
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
VASAInteractive Computational Steering of Large
Asynchronous Simulation Pipelines for Societal Infrastructure
SUNGAHN KO JIEQIONG ZHAO JING XIA SHEHZAD AFZAL XIAOYU WANGGREG ABRAM NIKLAS ELMQVIST LEN KNE DAVID VAN RIPER KELLY GAITHER
SHAUN KENNEDY WILLIAM TOLONE WILLIAM RIBARSKY DAVID S. EBERT
Society is under threat from many sources…
Power grid
Power plants
Motivating scenario slide:Picture of critical infrastructure
Highways
Supply chains
Simulation slide:Simulation is the answer
DISASTERstrikes…
When
HOW CAN WE PREPARE?
WHEN REAL-WORLD EXERCISES ARE COSTLY AND DANGEROUS
simulationI S T H E A N S W E R
IDEA: pipeline of asynchronous simulations
Weathersimulation
Powergrid model
Road networks
Criticalinfrastructure
System-of-systems:multiple heterogeneous systemscombined into a unified systemgreater than its individual parts
CHALLENGES
C1Monolithic simulation
C2Complex relations
C3Non-
standard data
C4Long exec. times
C5Certainty
+ fidelity
VASAVISUAL ANALYTICS FOR SIMULATION-BASED ACTION
Distributed component-based framework for computational steering of systems-of-systems simulations for societal
infrastructure based on a visual analytics approach
CASUAL EXPERTS:Deep expertise in domain
No expertise insimulation + data science
RESILIENCE + RESPONSE:Understand and trace events
Identify vulnerabilities“What if?” scenarios
COMPLEX SYSTEMS:Supply chain logistics
Public safetyCybersecurity
USERS TASKS DOMAIN
DESIGN GUIDELINES
• Avoids integration of a monolithic design with another • Provides a data exchange format (C1, C3)• Enables parallel execution of distributed models (C4)
G1Simulation services
• Provides approximated results for interactive response• Enables real-time response hiding long execution times
G2Simulation proxies
• Help to simplify configurations for non-experts• Provides a data exchange format (C1, C3)
G3Visual Relations
DESIGN GUIDELINES (2)
• Partial and interruptible computational steering
G4Computational steering
• Uncertainty visualization (C5)• Propagation of errors
G5Visual representations
• Main focus of VASA is mapsG6Spatiotemporal focus