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ROBO SPACE
Autonomous machines edge towards greater independence
by Staff Writers
Washington DC (SPX) Jun 12, 2017


illustration only

Cars that can drive autonomously have recently made Autonomous machines edge towards greater independences. In the near future, machines that can learn autonomously will become increasingly present in our lives. The secret to efficient learning for these machines is to define an iterative process to map out the evolution of how key aspects of these systems change over time.

In a study published in EPJ B, Agustin Bilen and Pablo Kaluza from Universidad Nacional de Cuyo, Mendoza, Argentina show that these smart systems can evolve autonomously to perform a specific and well-defined task over time.

Applications range from nanotechnology to biological systems, such as biological signal transduction networks, genetic regulatory networks with adaptive responses, or genetic networks in which the expression level of certain genes in a network oscillates from one state to another.

These autonomous systems do not need an external tutor. Nor do they report to a central unit designed to modify what the system must learn depending on their performance. To increase their autonomy, the authors have built in delayed dynamics and a feedback loop with the system's performance.

The delayed dynamics provide information on the history of the system, thus presenting the past relationships between its structure and performance. In turn, the feedback loop offers information on the system's actual performance in terms of how close it is to the desired task.

The researchers first successfully applied their approach to a neural network responsible for classifying several patterns, which yielded 66% robustness. These insights can be applied e.g. in analogue electronics, where a piece of hardware can learn a task autonomously without a central processing unit or external control.

The team also tested their solution on a system of phase oscillators, which are interesting because the populations of such oscillators display some remarkable synchronisation traits. In such cases, autonomous learning helps to avoid the inherent fluctuations of error normally found in such systems.

Reference: Agustin M. Bilen and Pablo Kaluza (2017), Autonomous learning by simple dynamical systems with a discrete-time formulation, Eur. Phys. J. B 90:94, DOI 10.1140/epjb/e2017-70714-7

ROBO SPACE
Apple wants to rock the market with HomePod, faces challenges
San Francisco (AFP) June 7, 2017
Apple's new HomePod speaker may be music to the ears of its loyal fans, but how much it can crank up volume in the smart speaker market remains to be heard. Apple unveiled its long-awaited HomePod at its annual developers conference taking place this week in the heart of Silicon Valley, enticing lovers of its products with a high-end offering in a market dominated by lower-priced devices fro ... read more

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