In the study, published in Nature Communications, the Southampton research team experimentally demonstrated an ANN that
used memristor synapses supporting sophisticated learning rules in order to carry out reversible learning of noisy input data.
Liesbeth Venema discusses the hope that neural networks
using memristor technology may be the answer to artificial intelligence (5 August,...
Not exact matches
But unlike his previous
memristor, which
used individual, small flakes of MoS2, Hersam's memtransistor makes
use of a continuous film of polycrystalline MoS2 that comprises a large number of smaller flakes.
The memtransistor builds upon work published in 2015, in which Hersam, Sangwan, and their collaborators
used single - layer molybdenum disulfide (MoS2) to create a three - terminal, gate - tunable
memristor for fast, reliable digital memory storage.
By transforming it into a three - terminal device, Hersam paved the way for
memristors to be
used in more complex electronic circuits and systems, such as neuromorphic computing.
For one, «HP's
memristor is made
using a titanium oxide, which is not common to put on semiconductors and appears to be difficult to manage today,» says Jim Handy, an analyst with the semiconductor market research firm Objective Analysis in Los Gatos, Calif..
It
uses tiny devices called
memristors that store information by «remembering» the last voltage applied to them.
New research, led by the University of Southampton, has demonstrated that a nanoscale device, called a
memristor, could be
used to power artificial systems that can mimic the human brain.
In this study, Lu's team
used a special
memristor that memorizes events only in the near history.
Using only 88
memristors as nodes to identify handwritten versions of numerals, compared to a conventional network that would require thousands of nodes for the task, the reservoir achieved 91 percent accuracy.
The resistance of a
memristor at any moment depends on the last voltage it experienced, so its behaviour can be
used to recall past voltages.
Lu, who led the project, and colleagues at U-M and the Electronic Research Centre Jülich in Germany
used transmission electron microscopes to watch and record what happens to the atoms in the metal layer of their
memristor when they exposed it to an electric field.