Research

Read more at https://techxplore.com/news/2023-03-echo-state-graph-neural-networks-1.html In this video: The echo state layer for graph embedding. The hidden state of a node in the graph is updated with the projection of the node itself and the previous hidden state of the neighboring nodes, both are processed with the fix and random echo state layer implemented with random memristive array. Video Credit: Wang et al. Subscribe: https://www.youtube.com/c/Science-X-Network Join Science X channel to support our mission: https://www.youtube.com/c/Science-X-Network/join Thank you for helping our YouTube channel reach new heights! Hitting subscribe aids us in our mission to bring you the latest and greatest research news in science, medicine and technology.

Control of Switching Modes and Conductance Quantization in Oxygen Engineered HfOx based Memristive Devices: Oxygen stoichiometry engineering is intrinsically achieved in hafniumoxide-based memristive devices via reactive molecular beam epitaxy in a Pt/HfOx/TiN device configuration. This allows for uncovering the nature of complex coexistence of multiple switching modes (unipolar, bipolar, complementary, threshold) and occurrence of quantum conductance states. The findings are relevant to the control of switching dynamics in all oxide-based switching devices. This is reported by Sankaramangalam Ulhas Sharath, Stefan Vogel, Leopoldo Molina-Luna, Erwin Hildebrandt, Christian Wenger, Jose Kurian, Michael Duerrschnabel, Tore Niermann, Gang Niu, Pauline Calka, Michael Lehmann, Hans-Joachim Kleebe, Thomas Schroeder, and Lambert Alff in the article https://doi.org/10.1002/adfm.201700432. To know more, please go to the Advanced Functional Materials homepage.

This tutorial has been part of the Conference on Neuromorphic Materials, Devices, Circuits and Systems (NeuMatDeCas) that took place from the 23rd to the 25th.

Alex Nugent's presentation at SPIE Disruptive Technologies 2018 conference, Orlando FL.

In 1971, Leon O. Chua published a seminal paper on the missing basic circuit element. Leon O. Chua and Sung-Mo Kang published a paper, in 1976, that described a large class of devices and systems they called memristive devices and systems. Just recently, Stan Williams and his research team at HP Labs unveiled a two-terminal titanium dioxide nanoscale device in Nature magazine that exhibited memristor characteristics. This symposium will explore the potential of memristors and memristive systems as they advance state of the art nano-electronic circuits. Program (Part 2) Memristors as Synapses in a Neural Computing Architecture Greg Snider, Senior Architect, Information and Quantum Systems Laboratory, Hewlett-Packard Laboratories Prospects and Challenges of Redox-based Memristive RRAM Concpets Rainer Waser, RWTH Aachen University at Research Center Juelich, Germany The event is co-sponsored by UC Merced and UC Berkeley in cooperation with the Semiconductor Industry Association (SIA). The Symposium is funded by the National Science Foundation.

Recently, computation in memory becomes very hot due to the urgent needs of high computing efficiency in artificial intelligence applications. In contrast to von-neumann architecture, computation in memory technology avoids the data movement between CPU/GPU and memory which could greatly reduce the power consumption.Memristor is one ideal device which could not only store information with multi-bits, but also conduct computing using ohm’s law. To make the best use of the memristor in neuromorphic systems, a memristor-friendly architecture and the software-hardware collaborative design methods are essential, and the key problem is how to utilize the memristor’s analog behavior.We have designed a generic memristor crossbar based architecture for convolutional neural networks and perceptrons, which take full consideration of the analog characteristics of memristors. Furthermore, we have proposed an online learning algorithm for memristor based neuromorphic systems which overcomes the varation of memristor cells and endue the system the ability of reinforcement learning based on memristor’s analog behavior. Full abstract and speaker details can be found here: https://nus.edu/3cSFD3e Register for free for all our upcoming webinars at https://nus.edu/3bcN9pS.

HKU EEE x IEEE HK ED/SSC Distinguished Speaker Series Speaker: Prof. Yuchao Yang, Director of Center for Brain Inspired Chips, Peking University Date: 27 August 2021 For more seminars, see https://r10.ieee.org/hk-edssc/

Memristive devices have been a hot topic in nanoelectronics for the last two decades in both academia and industry. Originally proposed as digital (binary) nonv

Materials, an international, peer-reviewed Open Access journal.

Nature Electronics - This Review examines switching mechanisms in memristive devices based on van der Waals materials, and explores the advantages such devices offer and the challenges that must be...

The confluence of Big Data, IoT and Real-Time Analytics calls for rethinking of the hardware computing paradigm, either by the bottom up or top down approach. Memristive neuromorphic systems inspired by brain functions and implemented through new materials properties, bionic memristive devices (e.g., artificial synapses and neurons) and neural network circuits, are emerging with the promise of transforming the semiconductor information processing technology.Since the experimental discovery of memristors twelve years ago, memristive neuromorphic hardware has continued to make big strides. On the level of the material, a huge number of materials of various categories have shown memristive properties and this number continues to increase rapidly. In such a growing filed, there is a crucial need to establish materials selection rules and evaluate the suitability of the corresponding devices for neuromorphic systems. Device yield testing, performance distribution analysis and circuit reliability simulations have to be performed and standardized to turn these materials research endeavors into real impact. On the device level, researchers have showcased devices with diverse physical mechanisms, primary neuromorphic functions, and intriguing performances. Highly reproducible devices with desired characteristics, and versatile devices integrating multiple neural dynamics and computational capabilities remain to be demonstrated to further boost the system performance and functionali...

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Advanced Materials, one of the world's most prestigious journals, is the home of choice for best-in-class materials science for more than 30 years.

The Biology of Marvel’s Symbiotes

Charge density wave (CDW) is a quantum mechanical phenomenon, which induces distortion in the crystal structures of some low-dimensional (1D or 2D) metals, when the temperature is reduced. Such distorted crystal structure is known as CDW phase and its resistivity is much higher than the original symmetric phase. Since the switching between symmetric and CDW phase can also be made by the application of external electric field, these materials are technologically important and have attracted immense attention in the nanoelectronics community.

Novel technique could lead to tiny, self-powered devices for environmental, industrial, or medical monitoring.

Scientific Reports - Avalanche criticality in LaAlO $$_3$$ 3 and the effect of aspect ratio

Congratulations to Lyes Khacef for receiving the first thesis prize from the STIC doctoral school in Université Côte d'Azur! We are happy to have you now at…

PDF | Video sentiment analysis can effectively establish the relationship between the emotion state and the multimodal information, while still suffer... | Find, read and cite all the research you need on ResearchGate

The next instalment of our disruptive thinkers series is out now. Please check it out.

Scientific Reports - Enhancing membrane-based soft materials with magnetic reconfiguration events

IBM scientists have created randomly spiking neurons using phase-change materials to store and process data. This demonstration marks a significant step