Results 11 to 20 of about 3,972,632 (293)
Maintenance awareness in wireless sensor networks [PDF]
In wireless sensor networks where deployment is expected to surpass the lifetime of batteries, a major part of the operation costs is expected to be consumed by maintenance costs.
Sreenan, Cormac J. +2 more
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Malicious anchor node is a serious issue in underwater sensor networks. This problem gets compounded under sparse deployment scenario. To overcome this issue, the authors present a Compressed Sensing for Malicious node Compensation theorem (abbreviated ...
Prateek +4 more
doaj +1 more source
Outlier detection algorithm based on k-nearest neighbors-local outlier factor
The main task of outlier detection is to detect data objects which have a different mechanism from the conventional data set. The existing outlier detection methods are mainly divided into two directions: local outliers and global outliers. Aiming at the
He Xu, Lin Zhang, Peng Li, Feng Zhu
doaj +1 more source
Localization in underwater wireless sensor network (UWSN) faces an imminent threat when the triangulating anchor node starts to malfunction. Traditional geometric approaches are insufficient to cope with the survivability of UWSN topology.
Prateek +4 more
doaj +1 more source
Predictable and controllable wireless sensor networks [PDF]
Research activity in the area of wireless sensor networks has grown dramatically in the past few years, driven by advances in miniaturized hardware, and motivated by a vast array of potential applications. Only a small number of sensor networks have been
Sreenan, Cormac J., Roedig, Utz
core +4 more sources
An Entity Relation Extraction Method Based on Dynamic Context and Multi-Feature Fusion
Dynamic context selector, a kind of mask idea, will divide the matrix into some regions, selecting the information of region as the input of model dynamically.
Xiaolin Ma +3 more
doaj +1 more source
Reliability of Wireless Sensor Networks [PDF]
Wireless Sensor Networks (WSNs) consist of hundreds or thousands of sensor nodes with limited processing, storage, and battery capabilities. There are several strategies to reduce the power consumption of WSN nodes (by increasing the network lifetime) and increase the reliability of the network (by improving the WSN Quality of Service).
Antônio Dâmaso +2 more
openaire +3 more sources
A Keyword Detection and Context Filtering Method for Document Level Relation Extraction
Relation extraction (RE) is the core link of downstream tasks, such as information retrieval, question answering systems, and knowledge graphs. Most of the current mainstream RE technologies focus on the sentence-level corpus, which has great limitations
Hailan Kuang +3 more
doaj +1 more source
Heart Rate Measurement Based on 3D Central Difference Convolution with Attention Mechanism
Remote photoplethysmography (rPPG) is a video-based non-contact heart rate measurement technology. It is a fact that most existing rPPG methods fail to deal with the spatiotemporal features of the video, which is significant for the extraction of the ...
Xinhua Liu +3 more
doaj +1 more source
Efficient Spatiotemporal Attention Network for Remote Heart Rate Variability Analysis
Studies have shown that ordinary color cameras can detect the subtle color changes of the skin caused by the heartbeat cycle. Therefore, cameras can be used to remotely monitor the pulse in a non-contact manner.
Hailan Kuang +3 more
doaj +1 more source

