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Assessment of multi-scale SMOS and SMAP soil moisture products across the Iberian Peninsula
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-02-01)
Article
Open AccessIn the last decade, technological advances led to the launch of two satellite missions dedicated to measure the Earth’s surface soil moisture (SSM): the ESA’s Soil Moisture and Ocean Salinity (SMOS) launched in 2009, and ... -
Machine learning-based in-band OSNR estimation from optical spectra
(2019-12-15)
Article
Open AccessMeasuring the optical signal to noise ratio (OSNR) at certain network points is essential for failure handling, for single connection but also global network optimization. Estimating OSNR is inherently difficult in dense ... -
Time-domain speech enhancement using generative adversarial networks
(2019-11-01)
Article
Restricted access - publisher's policySpeech enhancement improves recorded voice utterances to eliminate noise that might be impeding their intelligibility or compromising their quality. Typical speech enhancement systems are based on regression approaches ... -
A review of RFI mitigation techniques in microwave radiometry
(Multidisciplinary Digital Publishing Institute (MDPI), 2019-12-17)
Article
Open AccessRadio frequency interference (RFI) is a well-known problem in microwave radiometry (MWR). Any undesired signal overlapping the MWR protected frequency bands introduces a bias in the measurements, which can corrupt the ... -
Exploring efficient neural architectures for linguistic-acoustic mapping in text-to-speech
(Multidisciplinary Digital Publishing Institute, 2019-08-17)
Article
Open AccessConversion from text to speech relies on the accurate mapping from linguistic to acoustic symbol sequences, for which current practice employs recurrent statistical models such as recurrent neural networks. Despite the ... -
Energy sharing and trading in multi-operator heterogeneous network deployments
(Institute of Electrical and Electronics Engineers (IEEE), 2019-05-01)
Article
Open AccessWith a view to the expected increased data traffic volume and energy consumption of the fifth generation networks, the use of renewable energy (RE) sources and infrastructure sharing have been embraced as energy and ... -
Analysis of pre- and post-mine closure surface deformations in western xuzhou coalfield from 2006 to 2018
(Institute of Electrical and Electronics Engineers (IEEE), 2019-01-01)
Article
Open AccessEconomic development and population expansion in mining cities have led to a growing scarcity of land for construction and thus the closed mines land reuse is extremely urgent. Exploration of the law of surface deformation ... -
Restricted Boltzmann machine vectors for speaker clustering and tracking tasks in TV broadcast shows
(Multidisciplinary Digital Publishing Institute, 2019-07-09)
Article
Open AccessRestricted Boltzmann Machines (RBMs) have shown success in both the front-end and backend of speaker verification systems. In this paper, we propose applying RBMs to the front-end for the tasks of speaker clustering and ... -
Two-dimensional mineral dust radiative effect calculations from CALIPSO observations over Europe
(European Geosciences Union (EGU), 2019-10-24)
Article
Open AccessA demonstration study to examine the feasibility of retrieving dust radiative effects based on combined satellite data from MODIS (Moderate Resolution Imaging Spectroradiometer), CERES (Clouds and the Earth's Radiant Energy ... -
Prediction of amyloid pathology in cognitively unimpaired individuals using voxel-wise analysis of longitudinal structural brain MRI
(2019-08-17)
Article
Open AccessBackground Magnetic resonance imaging (MRI) has unveiled specific alterations at different stages of Alzheimer’s disease (AD) pathophysiologic continuum constituting what has been established as “AD signature”. To what ... -
Shared latent structures between imaging features and biomarkers in early stages of Alzheimer's disease: a predictive study
(2019-08-01)
Article
Open AccessMagnetic resonance imaging (MRI) provides high resolution brain morphological information and is used as a biomarker in neurodegenerative diseases. Population studies of brain morphology often seek to identify pathological ... -
A GRASP meta-heuristic for evaluating the latency and lifetime impact of critical nodes in large wireless sensor networks
(Multidisciplinary Digital Publishing Institute, 2019-11-01)
Article
Open AccessWireless Sensor Networks (WSN) have lately been gaining momentum thanks to the hardware improvements and standardization software efforts. Moreover, the appearance of Internet of Things (IoT) and its reliance on sensors ...
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