Zobrazeno 1 - 10
of 626
pro vyhledávání: '"Hejda P"'
Autor:
Marchesin, Federico, Hejda, Matěj, Carmona, Tzamn Melendez, Di Carlo, Stefano, Savino, Alessandro, Pavanello, Fabio, Van Vaerenbergh, Thomas, Bienstman, Peter
Matrix-vector multiplications (MVMs) are essential for a wide range of applications, particularly in modern machine learning and quantum computing. In photonics, there is growing interest in developing architectures capable of performing linear opera
Externí odkaz:
http://arxiv.org/abs/2411.02243
Autor:
Hejda, Matěj, Marchesin, Federico, Papadimitriou, George, Gizopoulos, Dimitris, Charbonnier, Benoit, Orobtchouk, Régis, Bienstman, Peter, Van Vaerenbergh, Thomas, Pavanello, Fabio
In this work, we discuss our vision for neuromorphic accelerators based on integrated photonics within the framework of the Horizon Europe NEUROPULS project. Augmented integrated photonic architectures that leverage phase-change and III-V materials f
Externí odkaz:
http://arxiv.org/abs/2407.06240
Autor:
Zhang, Weikang, Hejda, Matěj, Al-Taai, Qusay Raghib Ali, Owen-Newns, Dafydd, Romeira, Bruno, Figueiredo, José M. L., Robertson, Joshua, Wasige, Edward, Hurtado, Antonio
We report a multi-modal spiking neuron that allows optical and electronic input and control, and wavelength-multiplexing operation, for use in novel high-speed neuromorphic sensing and computing functionalities. The photonic-electronic neuron is buil
Externí odkaz:
http://arxiv.org/abs/2403.03775
Publikováno v:
NeoBiota, Vol 96, Iss , Pp 279-297 (2024)
We studied the short-term dynamics of the occurrence of alien plant species in a South African savanna. Within the MOSAIK (Monitoring Savanna Biodiversity in the Kruger National Park) project, plant species were recorded in a representative set of 60
Externí odkaz:
https://doaj.org/article/933536b19b81472ea26c36081e432012
Publikováno v:
Journal of Space Weather and Space Climate, Vol 9, p A11 (2019)
Some recent studies point out that currents related to the auroral oval, electrojets and field aligned currents (FACs), are serious candidates for the mechanism of the intense mid-latitude magnetic storms. It is interesting to re-analyse historical d
Externí odkaz:
https://doaj.org/article/49bf298c570c41929dde40a9309d1d19
Autor:
Hejda, Matěj, Doris, Eli A., Bilodeau, Simon, Robertson, Joshua, Owen-Newns, Dafydd, Shastri, Bhavin J., Prucnal, Paul R., Hurtado, Antonio
Publikováno v:
Neuromorph. Comput. Eng. 4 (2024) 024011
Spiking neurons and neural networks constitute a fundamental building block for brain-inspired computing, which is posed to benefit significantly from photonic hardware implementations. In this work, we experimentally investigate an interconnected sy
Externí odkaz:
http://arxiv.org/abs/2305.00788
Autor:
Al-Taai, Qusay Raghib Ali, Hejda, Matěj, Zhang, Weikang, Romeira, Bruno, Figueiredo, José M. L., Wasige, Edward, Hurtado, Antonio
This work reports a nanostructure resonant tunnelling diode-photodetector (RTD-PD) device and demonstrates its operation as a controllable, optically-triggered excitable spike generator. The top contact layer of the device is designed with a nanopill
Externí odkaz:
http://arxiv.org/abs/2304.11713
Photonic technologies offer great prospects for novel ultrafast, energy-efficient and hardware-friendly neuromorphic (brain-like) computing platforms. Moreover, neuromorphic photonic approaches based upon ubiquitous, technology-mature and low-cost Ve
Externí odkaz:
http://arxiv.org/abs/2211.12239
Publikováno v:
SoftwareX, Vol 27, Iss , Pp 101778- (2024)
Machine learning and AI remain hot topics in research. However, most machine-learning models are trained and applied to big data. Major electronics parts manufacturers are actively working on simplifying the deployment of machine learning models to t
Externí odkaz:
https://doaj.org/article/f71b661b99ec4c59ac9d65c15d955a34
Autor:
Hejda, Matěj, Malysheva, Ekaterina, Owen-Newns, Dafydd, Al-Taai, Qusay Raghib Ali, Zhang, Weikang, Ortega-Piwonka, Ignacio, Javaloyes, Julien, Wasige, Edward, Dolores-Calzadilla, Victor, Figueiredo, José M. L., Romeira, Bruno, Hurtado, Antonio
Excitable optoelectronic devices represent one of the key building blocks for implementation of artificial spiking neurons in neuromorphic (brain-inspired) photonic systems. This work introduces and experimentally investigates an opto-electro-optical
Externí odkaz:
http://arxiv.org/abs/2206.11044