Articles with "activity detection" as a keyword



Voice activity detection with quasi-quadrature filters and GMM decomposition for speech and noise

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Published in 2020 at "Applied Acoustics"

DOI: 10.1016/j.apacoust.2020.107344

Abstract: Abstract One of basic algorithms employed in technologies such as automatic speech recognition (ASR) systems is voice activity detection (VAD). Speech contains many pauses, whose interpretation might lead to recognition errors. Scientific literature provides numerous… read more here.

Keywords: voice activity; speech; detection; activity detection ... See more keywords

Evaluation of a biomimetic 3D substrate based on the Human Elastin-like Polypeptides (HELPs) model system for elastolytic activity detection.

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Published in 2017 at "Journal of biotechnology"

DOI: 10.1016/j.jbiotec.2017.06.006

Abstract: Elastin is a fibrous protein that confers elasticity to tissues such as skin, arteries and lung. It is extensively cross-linked, highly hydrophobic and insoluble. Nevertheless, elastin can be hydrolysed by bacterial proteases in infectious diseases,… read more here.

Keywords: evaluation; activity detection; elastolytic activity; activity ... See more keywords

Single-Nanoparticle ICP-MS for Sensitive Detection of Uracil-DNA Glycosylase Activity.

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Published in 2021 at "Analytical chemistry"

DOI: 10.1021/acs.analchem.1c01447

Abstract: Single-nanoparticle inductively coupled plasma mass spectrometry (SP-ICP-MS) has demonstrated unique advantages for the detection of biological samples. However, methods for enzyme activity detection based on SP-ICP-MS technology have been rarely explored. Here we report the… read more here.

Keywords: icp; detection; uracil dna; single nanoparticle ... See more keywords

Device Activity Detection and Non-Coherent Information Transmission for Massive Machine-Type Communications

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Published in 2020 at "IEEE Access"

DOI: 10.1109/access.2020.2976824

Abstract: In the grant-free massive machine-type communication (mMTC) scenario, a key challenge is the joint device activity detection and data decoding. The sporadic nature of mMTC makes compressed sensing a promising solution to the activity detection… read more here.

Keywords: non coherent; activity detection; device; transmission ... See more keywords

Voice Activity Detection Optimized by Adaptive Attention Span Transformer

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Published in 2023 at "IEEE Access"

DOI: 10.1109/access.2023.3262518

Abstract: Voice Activity Detection (VAD) is a widely used technique for separating vocal regions from audio signals, with applications in voice language coding, noise reduction, and other domains. While various strategies have been proposed to improve… read more here.

Keywords: voice activity; activity detection; vad; voice ... See more keywords

Human Sensing by Using Radio Frequency Signals: A Survey on Occupancy and Activity Detection

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Published in 2023 at "IEEE Access"

DOI: 10.1109/access.2023.3269843

Abstract: Applications for human sensing, also known as (human) occupancy detection, include energy management systems for intelligent buildings, intruder detection, e-health systems, the identification of everyday activity, and the monitoring of vital signs. These applications require… read more here.

Keywords: occupancy; activity detection; human sensing; detection ... See more keywords

sEMG-Based Gesture Classifier Through DTW and Enhanced Muscle Activity Detection

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Published in 2024 at "IEEE Access"

DOI: 10.1109/access.2024.3448410

Abstract: Prosthetic hands are of paramount importance in the rehabilitation of upper limbs amputees. Gesture recognition using surface electromyography (sEMG) data has emerged as a great option for controlling prosthetic devices, since these data are acquired… read more here.

Keywords: activity detection; muscle; muscle activity; semg ... See more keywords

LightSTATE: A Generalized Framework for Real-Time Human Activity Detection Using Edge-Based Video Processing and Vision Language Models

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Published in 2025 at "IEEE Access"

DOI: 10.1109/access.2025.3574659

Abstract: Human activity detection plays a vital role in applications such as healthcare monitoring, smart environments, and security surveillance. However, traditional methods often rely on computationally intensive models, which are unsuitable for edge devices due to… read more here.

Keywords: activity detection; language; real time; time ... See more keywords

Joint Device Activity Detection and Channel Estimation for mMTC

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Published in 2024 at "IEEE Internet of Things Journal"

DOI: 10.1109/jiot.2024.3399562

Abstract: Massive machine-type communication (mMTC) is characterized by the sporadic device activities and angular-sparse channels, creating an opportunity for the efficient joint device activity detection (AD) and channel estimation (CE). However, it is computationally intractable to… read more here.

Keywords: joint device; device activity; device; activity detection ... See more keywords
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Covariance-Based Gridless Joint Device Activity Detection and Frequency Offset Estimation for Asynchronous Massive Access With Massive MIMO

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Published in 2025 at "IEEE Internet of Things Journal"

DOI: 10.1109/jiot.2025.3527033

Abstract: Device activity detection has been regarded as a critical task in grant-free random access for massive machine-type communications (mMTC), where only a small portion of the massive potential single-antenna devices are connected to the base… read more here.

Keywords: device activity; activity detection; frequency;

Orthogonal Matching Non-Negative Least Squares for Activity Detection in Unsourced Random Access

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Published in 2024 at "IEEE Communications Letters"

DOI: 10.1109/lcomm.2024.3374757

Abstract: Unsourced random access (URA) is challenged to support massive connectivity with reduced latency for the future communications networks. Activity detection (AD) has a close correlation with URA under limited number of channel uses. Recently, non-Bayesian… read more here.

Keywords: non negative; least squares; negative least; activity detection ... See more keywords