220 likes | 487 Views
Adaptive Automation: Sharing and trading of control. Function Allocation. Who does what Types Comparison allocation MABA-MABA (what “men are better at and what “machines are better at”) Leftover allocation Economic allocation. Comparison allocation MABA-MABA. problem.
E N D
Function Allocation • Who does what • Types • Comparison allocation • MABA-MABA (what “men are better at and what “machines are better at”) • Leftover allocation • Economic allocation
problem • Do see a problem with this function allocation?
Who does What When decisions • Example of Aircraft Navigation
Sharing of control • Human and computer work together simultaneously to achieve a single function (Sheridan, 1992) • Types • Extension • Relief • Partitioning
Trading of Control • Either the human or computer is responsible for function, and an active agent changes alternately time to time (Sheridan, 1992). • Example of Aircraft
Functions that may be automated • Four classes of functions • Information acquisition • Information analysis • Decision selection • Action implementation • Design alternatives regarding to what extent each of the four functions
Acquisition Automation • Low level of automation • Examples?
Analysis Automation • Moderate level of automation • Examples?
Decision Automation • Situation Diagnostic decisions • Identify what is going on • Select the most appropriate hypothesis among a set of diagnostic hypotheses. • Action Selection decisions • Deciding the most appropriate action among the set of alternatives • Level of automation between 2, 3 or 4
Action Automation • Reasonable automation to adjust the configuration of system automatically so that the new configuration may fit well with the current situation • The level of automation would be 4
Adaptive Automation • A scheme that modifies function allocation dynamically and flexibly depending on a situation-adaptive function allocation • Determine whether the function have to be reallocated, how and when • So the automation that operates under an adaptive function allocation is called adaptive automation
Automation Invocation Strategies • Critical Event strategy • Change function allocation when specific events occur in the human-machine system • Three levels of logic • Emergency • Executive • Automated display • Level of automation depends on the logic
Automation Invocation Strategies • Measurement based Strategies • Detecting changes in Workload levels • Identifying what component of mental workload is under stressed or overstressed • Psychophysiological Measure
Automation Invocation Strategies • Modeling based strategy • Models to infer whether the workload is excessive or not • Three groups of models • Intent inferencing model • Optimal (mathematical) model • Resource model