autonomous vehicle (Air Force photo)

Self-improvement for autonomous systems

What if autonomous vehicles could teach themselves to become safer and more advanced?

Autonomous technologies have benefited from better sensing and computing, but they’re still not trustworthy enough for use in some situations. The Defense Advanced Research Projects Agency wants to bring the capabilities of machine learning to unmanned systems with its Assured Autonomy program.

Increased assurance means increased trust. Trust in autonomous system is one of the main considerations for Department of Defense in adopting the technologies more fully, according to a 2016 Defense Science Board report.

“Establishing trustworthiness at design time and providing adequate capabilities so that inevitable variations in operational trustworthiness can be assessed and dealt with at run time is essential, not only for operators and commanders, but also for designers, testers, policymakers, lawmakers, and the American public,” the report reads.

Currently, the assurances that autonomous systems operate safely and perform as expected are set when they are deployed. But advancements in machine learning mean that these cyber-physical systems can learn and their assurance can improve over time, something DARPA calls “continual assurance.”

To launch its Assured Autonomy program, DARPA recently held a proposers day, looking for design and analysis technologies that will provide continual assurance in learning-enabled autonomous systems. The focus of the program is on military applications, but the proposers day announcement said the findings could be relevant to other learning-enabled autonomous cyber-physical systems.

Paul Brubaker, the CEO and president of Alliance for Transportation Innovation, said the formation of this DARPA program was good news.

“This activity will go a long way to assuaging public concern regarding the safety of autonomous systems and self-driving vehicles,” Brubaker said in an email. “Kudos to DARPA for launching this project -- it’s the long pole in the tent to increasing the comfort to self-driving and turning the possibilities into reality.”

About the Author

Matt Leonard is a former reporter for GCN.

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