Results 21 to 30 of about 10,276 (261)

Sparse Transcription [PDF]

open access: yesComputational Linguistics, 2021
AbstractThe transcription bottleneck is often cited as a major obstacle for efforts to document the world’s endangered languages and supply them with language technologies. One solution is to extend methods from automatic speech recognition and machine translation, and recruit linguists to provide narrow phonetic transcriptions and sentence-aligned ...
openaire   +2 more sources

Task-Related Synaptic Changes Localized to Small Neuronal Population in Recurrent Neural Network Cortical Models

open access: yesFrontiers in Computational Neuroscience, 2018
Humans have flexible control over cognitive functions depending on the context. Several studies suggest that the prefrontal cortex (PFC) controls this cognitive flexibility, but the detailed underlying mechanisms remain unclear.
Satoshi Kuroki   +2 more
doaj   +1 more source

Reverberation Suppression Method for Active Sonar Systems Using Non-Negative Matrix Factorization With Pre-Trained Frequency Basis Matrix

open access: yesIEEE Access, 2021
In active sonar systems, detection always suffers from reverberation interference from multiple scatterers in oceanic environments; therefore, numerous studies have been conducted on reverberation suppression.
Geunhwan Kim, Seokjin Lee
doaj   +1 more source

Learning the Hierarchical Parts of Objects by Deep Non-Smooth Nonnegative Matrix Factorization

open access: yesIEEE Access, 2018
Nonsmooth nonnegative matrix factorization (nsNMF) is capable of producing more localized, less overlapped feature representations than other variants of NMF while keeping satisfactory fit to data. However, nsNMF as well as other existing NMF methods are
Jinshi Yu   +3 more
doaj   +1 more source

Sparse MP4

open access: yes2020 IEEE Southwest Symposium on Image Analysis and Interpretation (SSIAI), 2020
MP4 is currently the gold standard for video compression. Here we demonstrate that MP4 can be augmented by using a spatiotemporal sparse code optimized for the reconstruction of video portraits to up-sample data streams in which 75% of the pixels have been removed.
Daniel A. Wang   +5 more
openaire   +2 more sources

A unifying theory of synaptic long-term plasticity based on a sparse distribution of synaptic strength

open access: yesFrontiers in Synaptic Neuroscience, 2014
Long-term synaptic plasticity is fundamental to learning and network function. It has been studied under various induction protocols and depends on firing rates, membrane voltage, and precise timing of action potentials.These protocols show different ...
Daniel eKrieg, Jochen eTriesch
doaj   +1 more source

An Adaptive Homeostatic Algorithm for the Unsupervised Learning of Visual Features

open access: yesVision, 2019
The formation of structure in the visual system, that is, of the connections between cells within neural populations, is by and large an unsupervised learning process.
Laurent U. Perrinet
doaj   +1 more source

Factors of Sparse Polynomials are Sparse.

open access: yesElectron. Colloquium Comput. Complex., 2014
This paper was removed due to an error in the proof (Claim 4.12 as stated is not true)
Zeev Dvir, Rafael Oliveira 0002
  +6 more sources

Sparse-to-Sparse Training of Diffusion Models [PDF]

open access: yesCoRR
Diffusion models (DMs) are a powerful type of generative models that have achieved state-of-the-art results in various image synthesis tasks and have shown potential in other domains, such as natural language processing and temporal data modeling.
OLIVEIRA, Inês   +2 more
openaire   +3 more sources

Stabilized Sparse Online Learning for Sparse Data

open access: yesJ. Mach. Learn. Res., 2016
45 pages, 4 ...
Yuting Ma, Tian Zheng
openaire   +4 more sources

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