Abstract Modelling to Explore Data Collection Options

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Abstract Modelling to Explore Data Collection
Options

• Pauline A. Wilcox
• Albert G. Burger

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Presentation Overview

• Position Points
• Importance of Data Collection
• Application of Abstract Model
• Summary of Paper
• Future Work

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Position PointsImportance of Data Collection

• What do we get from running simulations?
• Data Collection is also Non-trivial
• The HLA in particular has brought complexities
  through data filtering and partial updates

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Position Points Application of Abstract Model

• Advanced Distributed Simulation Abstract Model
• Focuses on exploring Communication Patterns
• ADSAM is a layered model
• Three core components
• 1. Participant
• 2. Communication Space
• 3. Communication Mechanism

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Overview of ADSAM
Participant (federates)

• Federate Profile
• Publications - message types and rates of
  publication
• Subscriptions - message types subscribed to

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Overview of ADSAM
Communication Space
Participant (federates)

• Filtering Capabilities
• communicationSpace (similar to DM in HLA)
• communicationStream (similar to DDM in HLA)

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Overview of ADSAM
Communication Space
Participant (federates)

• Filtering mechanism
• communicationRegions (similar to DDM in HLA)

Communication Mechanism
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Summary of Paper

• Example ADS configuration
• Abstraction for ADSAM
• Overview of Data Collection Experiments
• Conclusions from Experiments

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Example ADS Configuration
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Abstraction for ADSAM
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Data Collection Experiment (1)
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Data Collection Experiment (2)
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Conclusions from Experiments

• 1. Concerning Data Collection
• The data collection activity does affect the
  communication pattern
• As would the nature of the collector (i.e. what
  is it collecting)
• 2. ADSAM can be used to examine options

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Future Work

• 1. Benefits of examining data collection
  strategies in a wider context
• Across applications not just simulation
• 2. ADSAM as a vehicle for experimentation
• Test benefits and limitations of ADSAM
• Issue of mapping into ADSAM
• 3. Examination of communication patterns and
  analysis requirements
• Could lead to Data Collection Strategy Patterns

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A Category Matrix
Communication Pattern
C4
C1
C2
C3
DCSP 3
DCSP 4
DCSP 2
A1
DCSP 1
DCSP 2/4
A2
Analysis
DCSP 1/3
DCSP 3
A3
DCSP 2
A4
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Looking for Comments/Contacts

• Would like to hear from people
• Who agree that data collection is important
• Who disagree why?
• Have experiences they would like to share
  regarding their data collection experiences
• Have examined communication patterns
• Who may be interested in some of the future work
  mentioned

Questions ?