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December 18, 2023
SRI’S AIRCRAFTVERSE DATABASE COULD UNLOCK MORE CREATIVE DRONE DESIGNS
--------------------------------------------------------------------------------
THE DATASET OF 28,000 UNMANNED AERIAL VEHICLE DESIGNS COULD HELP RESEARCHERS USE
AI TO GENERATE NEW, FUNCTIONAL DRONE DESIGNS TAILORED TO SPECIFIC TASKS.
--------------------------------------------------------------------------------
There are many ways to make something fly, but most existing aircraft designs
are only slight variations on a few proven models and developing new designs can
take years. Researchers at SRI believe that AI could help produce new, creative
designs more quickly, and allow the designs to be tailored to specific tasks.
To that end, an SRI-led team has created AircraftVerse, a publicly available
dataset containing roughly 28,000 AI-generated unmanned aerial vehicle (UAV)
designs. Using this dataset, machine learning researchers are testing and
starting to develop algorithms to generate new drone designs.
“Incremental design change has its limits,” said Susmit Jha, the technical
director leading SRI’s Neuro-Symbolic Computing and Intelligence research group.
“We want to do more free design where we could come up with a design that best
suits a specific task and do it quickly.”
The AircraftVerse dataset could also be a boon to aircraft engineers, the
researchers said. There are not very many high-quality datasets that allow
designers to understand the physics of innovative drone designs, and there might
be patterns in this data that could help engineers improve designs.
DESIGNING NEW KINDS OF DRONES THAT CAN WORK IN THE REAL WORLD
AI algorithms have already been proven effective at learning from and generating
text and images, but UAVs must function in the real world. The designs in
AircraftVerse are more than just AI-generated sketches of possible drones—they
also need to operate in the real world and be consistent with the laws of
physics. The AircraftVerse designs created by SRI’s neuro-symbolic AI use
real-world components including batteries, propellers, motors, and electronics,
and have performance metrics such has maximum flight distance and hover time
calculated using high-fidelity scientific models.
“If you’re trying to generate an image of a UAV, it doesn’t really matter if an
AI model makes an error on one pixel because it doesn’t need to fly,” said Adam
Cobb, a senior computer scientist at SRI. “The AircraftVerse designs would need
to be developed further before they could fly, but they’re basically early
prototypes. We’re trying to remove some of the effort at the beginning of the
design process and allow for more creative digital solutions prior to real-world
testing to cut back on time and cost.”
USING AI TO TAKE THE DATASET TO BECOME MORE FUNCTIONAL
To generate the dataset, the researchers started with a small number of
functioning drone designs and created a neuro-symbolic AI to iterate off those
designs with very few restrictions. Most of the resulting designs in early
stages would never make it off the ground, but the researchers were able to
evaluate their functionality and slowly create a larger pool with more
successful designs. Based on those, they developed an algorithm that
automatically learns rules—requiring that wings be at least somewhat horizontal,
for example—without relying on restrictive human ideas of what is possible. This
allowed them to generate designs that were more likely to fly while still being
able to make creative choices.
The AircraftVerse dataset includes the designs the researchers generated over
two and a half years. Some aircraft have as many as six wings and others have up
to 12 propellers. Some will travel for 20 kilometers and some can’t fly at all.
But even those nonfunctional designs, which may be unbalanced or contain
impractical geometry, provide valuable data points to help shape new UAVs.
“Some designs might fail badly, but they could help us accidentally stumble onto
a design that is really good and we’ve never seen before,” Cobb said. Machine
learning methods require both good and bad designs to learn, and AircraftVerse
provides such a dataset.
MOVING BEYOND DRONES TO OTHER MACHINES AND VEHICLES
Now that they’ve figured out how to represent these complex designs in a way
that can be used to train an algorithm, the SRI researchers are trying to extend
their technique to other areas. They are working to generate a similar array of
novel designs for ground-based vehicles.
“This could have applications in underwater spaces or in designing new kinds of
arms for picking fruit,” Jha said. “Human designers in general have really
siloed ourselves into certain types of designs across many industries from
aircraft to automobiles, and AI can help us consider creative new options that
may end up serving us even better.”
--------------------------------------------------------------------------------
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He’s teamed up with SRI to make that happen.
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SRI ANNOUNCES ITS NEW FUTURE CONCEPTS DIVISION — AND A RENEWED FOCUS FOR THE
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becomes the new chair. Steven H. Walker, Lockheed Martin CTO and former DARPA
director, joins.
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