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79 results for “Sensor Networks”
REIP: a Reconfigurable Environmental Intelligence Platform and Software Framework for Fast Sensor Network Prototyping - use case dataset
<p>Sensor networks have dynamically expanded our ability to monitor and study the world. Their presence and need keep increasing, and new hardware configurations expand the range of physical stimuli that can be accurately recorded. Sensors are also no longer simply recording the data, they process it and transform into something useful before uploading to the cloud. However, building sensor networks is costly and very time consuming. It is difficult to build upon other people’s work and there are only a few open-source solutions for integrating different devices and sensing modalities. We introduce REIP, a Reconfigurable Environmental Intelligence Platform for fast sensor network prototyping. REIP’s first and most central tool, implemented in this work, is an open-source software framework, an SDK, with a flexible modular API for data collection and analysis using multiple sensing modalities. REIP is developed with the aim of being user-friendly, device-agnostic, and easily extensible, allowing for fast prototyping of heterogeneous sensor networks. Furthermore, our software framework is implemented in Python to reduce the entrance barrier for future contributions. We show the potential and versatility of REIP in real world applications, along with performance studies and benchmark REIP SDK against similar systems.</p> <p>This dataset was created for the case study in Section 5 of the paper.</p>
Available Wireless Sensor Network and Internet of Things testbed facilities: dataset
<p>In this data set, we present data collected for the purpose of carrying out a systematic review of the available Wireless Sensor Network and Internet of Things testbed facilities. The data was collected through multiple stages and in each stage the pre-defined criteria were applied. We provide a dataset describing the hardware and software aspects of Wireless Sensor Network and Internet of Things testbed facilities available in the market and scientific community. The data were gathered through an extensive systematic review process of scientific articles published between the years 2011 and 2021. The review aims to obtain good quality data for people who are actively researching the Internet of Things facilities or anyone who is interested in that field.</p>
Write-only File System for Privacy-aware Wireless Sensor Networks Evaluation Dataset
<p>Evaluation dataset for the paper <strong>"WoFS: A Write-only File System for Privacy-aware Wireless Sensor Networks"</strong> published at the <em>49th IEEE Conference on Local Computer Networks (2024)</em></p>
SINS database - Node 1 - Daily activities in a home environment recorded using a Acoustic Sensor Network
<p>The SINS database contains continuous recordings of a single person living in a vacation home over a period of one week. It was collected using a network of 13 microphone arrays distributed over the entire home. The microphone array consists of 4 linearly arranged microphones.Recordings were manually annotated on the level of daily activities performed in the environment.<br> <br> To obtain more information on the database please visit <a href="https://kuleuvenadvise.github.io/SINS_database/">this website</a> and read the published paper.<br> <strong>Please read to license file (available in this repository) before using the database.</strong><br> <br> When using this database you should <strong>cite the following paper</strong>:<br> Gert Dekkers, Steven Lauwereins, Bart Thoen, Mulu Weldegebreal Adhana, Henk Brouckxon, Toon van Waterschoot, Bart Vanrumste, Marian Verhelst, and Peter Karsmakers, The SINS database for detection of daily activities in a home environment using an acoustic sensor network, Proceedings of the Detection and Classification of -Acoustic Scenes and Events 2017 Workshop (DCASE2017), pp 32–36, November 2017.</p>
Reliable Many-to-Many Routing in Wireless Sensor Networks Using Ant Colony Optimisation
<p>Results files for testing of ACO protocol for many to many routing in wireless sensor networks. </p>
Ultrafine Particle Dataset Collected by the OpenSense Zurich Mobile Sensor Network
<p><strong>Ultrafine Particle Dataset Collected by the OpenSense Zurich Mobile Sensor Network</strong></p> <p>This dataset contains over 2 and a half years (04/2012-12/2014, >36 Mio samples) worth of ultra-fine particle (UFP) concentration measurements collected by a mobile senor network. The sensors are mounted on top of 10 streetcars in the city of Zurich, Switzerland.</p> <p><strong>Hardware:</strong></p> <ul> <li><strong>Ultrafine particle sensor</strong>: MiniDiSC (see also: Martin Fierz et al. Design, Calibration, and Field Performance of a Miniature Diffusion Size Classifier. Aerosol Science and Technology, Volume 45, 2011.)</li> <li><strong>GPS receiver</strong>: u-blox EVK-6p<br> </li> </ul> <p><strong>Sensor Data<br> ------------------</strong><br> <strong>ufp_data</strong><strong>*.csv column format:</strong></p> <ol> <li>Time of day: yyyy.mm.dd HH:MM</li> <li>Latitude WGS84</li> <li>Longitude WGS84</li> <li>HDOP: horizontal dilution of precision, uncertainty of the GPS position</li> <li>Tram ID</li> <li>Number of particles [#/ccm]</li> <li>Average particle diameter [nm]</li> <li>LDSA: lung deposited surface area [um2 /cm3]</li> </ol> <p><strong>Data quality:</strong><br> The data has been post-processed by performing a periodic null-offset calibration and filtering samples during malfunction.</p> <p><strong>High-Resolution Maps<br> --------------------------------</strong></p> <p>The data has been used to create high-resolution ultrafine particle concentration maps. Four maps, which show the seasonal average particle concentration over seasonal periods, can be found in ufp_seasonal_maps_201204_201304.csv.</p> <p><strong>ufp_map*.csv column format:</strong></p> <ol> <li>Latitude WGS84</li> <li>Longitude WGS84</li> <li>Estimated number of particles [#/ccm]</li> </ol> <p><strong>Map quality</strong></p> <p>Please have a look at the papers in References 1. and 2. (Hasenfratz et al. 2014 and 2015) for a detailed evaluation of the maps.</p> <p><strong>References<br> ----------------</strong><br> The dataset has been used and is described in more detail in the following publications:</p> <ol> <li>David Hasenfratz et al.<em> Pushing the Spatio-Temporal Resolution Limit of Urban Air Pollution Maps.</em> IEEE International Conference on Pervasive Computing and Communications (PerCom). Budapest, Hungary, March 2014. Best Paper Award. </li> <li>David Hasenfratz et al. <em>Deriving High-Resolution Urban Air Pollution Maps Using Mobile Sensor Nodes. </em>Pervasive and Mobile Computing. Elsevier, 2015. </li> <li>David Hasenfratz et al. <em>Demo Abstract: Health-Optimal Routing in Urban Areas.</em> ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN). Seattle, USA, April 2015.</li> <li>Michael Müller et al. <em>Statistical modelling of particle number concentration in Zurich at high spatio-temporal resolution utilizing data from a mobile sensor network. </em>Atmospheric Environment. Elsevier, 2016.</li> </ol> <p>For further information, visit: <a href="http://www.opensense.ethz.ch">http://www.opensense.ethz.ch</a></p>
Speed Prediction in Large and Dynamic Traffic Sensor Networks
<p>Aggregated traffic sensor data from Fortaleza (Brazil) in 2014.</p> <p>Please cite the following paper when using the dataset:</p> <p>R.P. Magalhaes, F. Lettich, J.A. Macedo, F.M. Nardini, R. Perego, C. Renso, R. Trani., <strong>Speed prediction in large and dynamic traffic sensor networks</strong>, Information Systems (2019) 101444, <a href="https://doi.org/10.1016/j.is.2019.101444">https://doi.org/10.1016/j.is.2019.101444</a></p> <p>You can also check details regarding the dataset in the paper.</p>
Updated Smoke Exposure Estimate for Indonesian Peatland Fires using a Network of Low-cost PM2.5 sensors and a regional air quality model - Model Simulation Data
<p>WRF-Chem simulated daily mean PM2.5 concentrations for:</p> <p>1) with fires </p> <p>2) without fires</p> <p>simulations. </p>
Updated Smoke Exposure Estimate for Indonesian Peatland Fires using a Network of Low-cost PM2.5 sensors and a regional air quality model - Purple Air data
<p>Daily mean PM2.5 concentrations collected by Purple Air sensors between 2023-08-16 and 2023-12-01. Concentrations have been RH adjusted using the Nilson et al (2022) adjustment. </p>
Supporting information for "Incoming Neutron Flux Corrections for Cosmic-ray Soil and Snow Sensors Using the Global Neutron Monitor Network"
<p>This dataset includes 2 files that represent supporting information for McJannet, D and Desilets, D (Submitted 2023)"Incoming Neutron Flux Corrections for Cosmic-ray Soil and Snow Sensors Using the Global Neutron Monitor Network" Water Resources Research.</p> <p>File 1 - Supporting Information 1 - Example calculation: Excel sheet showing demonstration calaculations using the neutron intensity correction described in the paper</p> <p>File 2 - Supporting information 2 - List of neutron moniotr stations used in the paper and acknowledgment of their contribtuion</p>
SONYC Urban Sound Tagging (SONYC-UST): a multilabel dataset from an urban acoustic sensor network
<p><strong>SONYC Urban Sound Tagging (SONYC-UST): a multilabel dataset from an urban acoustic sensor network</strong></p> <p>Version 2.3, September 2020</p> <p> </p> <p><strong>Created by</strong></p> <p>Mark Cartwright (1,2,3), Jason Cramer (1), Ana Elisa Mendez Mendez (1), Yu Wang (1), Ho-Hsiang Wu (1), Vincent Lostanlen (1,2,4), Magdalena Fuentes (1), Graham Dove (2), Charlie Mydlarz (1,2), Justin Salamon (5), Oded Nov (6), Juan Pablo Bello (1,2,3)</p> <ol> <li>Music and Audio Research Lab, New York University</li> <li>Center for Urban Science and Progress, New York University</li> <li>Department of Computer Science and Engineering, New York University</li> <li>Cornell Lab of Ornithology</li> <li>Adobe Research</li> <li>Department of Technology Management and Innovation, New York University</li> </ol> <p> </p> <p><strong>Publication</strong></p> <p>If using this data in an academic work, please reference the DOI and version, as well as cite the following paper, which presented the data collection procedure and the first version of the dataset:</p> <p>Cartwright, M., Cramer, J., Mendez, A.E.M., Wang, Y., Wu, H., Lostanlen, V., Fuentes, M., Dove, G., Mydlarz, C., Salamon, J., Nov, O., Bello, J.P. SONYC-UST-V2: An Urban Sound Tagging Dataset with Spatiotemporal Context. In <em>Proceedings of the Workshop on Detection and Classification of Acoustic Scenes and Events (DCASE)</em>, 2020.<br> <a href="https://arxiv.org/abs/2009.05188">[pdf]</a></p> <p> </p> <p><strong>Description</strong></p> <p>SONYC Urban Sound Tagging (SONYC-UST) is a dataset for the development and evaluation of machine listening systems for realistic urban noise monitoring. The audio was recorded from the <a href="https://wp.nyu.edu/sonyc">SONYC</a> acoustic sensor network. Volunteers on the <a href="https://zooniverse.org">Zooniverse</a> citizen science platform tagged the presence of 23 classes that were chosen in consultation with the New York City Department of Environmental Protection. These 23 fine-grained classes can be grouped into 8 coarse-grained classes. The recordings are split into three sets: training, validation, and test. The training and validation sets are disjoint with respect to the sensor from which each recording came, and the test set is displaced in time. For increased reliability, three volunteers annotated each recording. In addition, members of the SONYC team subsequently created a subset of verified, ground-truth tags using a two-stage annotation procedure in which two annotators independently tagged and then collectively resolved any disagreements. This subset of recordings with verified annotations intersects with all three recording splits. All of the recordings in the test set have these verified annotations. In v2 version of this dataset, we have also included coarse spatiotemporal context information to aid in tag prediction when time and location is known. For more details on the motivation and creation of this dataset see the <a href="http://dcase.community/challenge2020/task-urban-sound-tagging-with-spatiotemporal-context">DCASE 2020 Urban Sound Tagging with Spatiotemporal Context Task website</a>.</p> <p> </p> <p><strong>Audio data</strong></p> <p>The provided audio has been acquired using the SONYC acoustic sensor network for urban noise pollution monitoring. Over 60 different sensors have been deployed in New York City, and these sensors have collectively gathered the equivalent of over 50 years of audio data, of which we provide a small subset. The data was sampled by selecting the nearest neighbors on VGGish features of recordings known to have classes of interest. All recordings are 10 seconds and were recorded with identical microphones at identical gain settings. To maintain privacy, we quantized the spatial information to the level of a city block, and we quantized the temporal information to the level of an hour. We also limited the occurrence of recordings with positive human voice annotations to one per hour per sensor.</p> <p> </p> <p><strong>Label taxonomy</strong></p> <p>The label taxonomy is as follows:</p> <ol> <li>engine<br> 1: small-sounding-engine<br> 2: medium-sounding-engine<br> 3: large-sounding-engine<br> X: engine-of-uncertain-size</li> <li>machinery-impact<br> 1: rock-drill<br> 2: jackhammer<br> 3: hoe-ram<br> 4: pile-driver<br> X: other-unknown-impact-machinery</li> <li>non-machinery-impact<br> 1: non-machinery-impact</li> <li>powered-saw<br> 1: chainsaw<br> 2: small-medium-rotating-saw<br> 3: large-rotating-saw<br> X: other-unknown-powered-saw</li> <li>alert-signal<br> 1: car-horn<br> 2: car-alarm<br> 3: siren<br> 4: reverse-beeper<br> X: other-unknown-alert-signal</li> <li>music<br> 1: stationary-music<br> 2: mobile-music<br> 3: ice-cream-truck<br> X: music-from-uncertain-source</li> <li>human-voice<br> 1: person-or-small-group-talking<br> 2: person-or-small-group-shouting<br> 3: large-crowd<br> 4: amplified-speech<br> X: other-unknown-human-voice</li> <li>dog<br> 1: dog-barking-whining</li> </ol> <p>The classes preceded by an <code>X</code> code indicate when an annotator was able to identify the coarse class, but couldn’t identify the fine class because either they were uncertain which fine class it was or the fine class was not included in the taxonomy. <code>dcase-ust-taxonomy.yaml</code> contains this taxonomy in an easily machine-readable form.</p> <p> </p> <p><strong>Data splits</strong></p> <p>This release contains a training subset (13538 recordings from 35 sensors), and validation subset (4308 recordings from 9 sensors), and a test subset (669 recordings from 48 sensors). The training and validation subsets are disjoint with respect to the sensor from which each recording came. The sensors in the test set will not disjoint from the training and validation subsets, but the test recordings are displaced in time, occurring after any of the recordings in the training and validation subset. The subset of recordings with verified annotations (1380 recordings) intersects with all three recording splits. All of the recordings in the test set have these verified annotations.</p> <p> </p> <p><strong>Annotation data</strong></p> <p>The annotation data are contained in <code>annotations.csv</code>, and encompass the training, validation, and test subsets. Each row in the file represents one multi-label annotation of a recording—it could be the annotation of a single citizen science volunteer, a single SONYC team member, or the agreed-upon ground truth by the SONYC team (see the <em>annotator_id</em> column description for more information). Note that since the SONYC team members annotated each class group separately, there may be multiple annotation rows by a single SONYC team annotator for a particular audio recording.</p> <p> </p> <p> </p> <p><strong>Columns</strong></p> <p><em>split</em></p> <p>The data split. (<em>train</em>, <em>validate, test</em>)</p> <p><em>sensor_id</em></p> <p>The ID of the sensor the recording is from.</p> <p><em>audio_filename</em></p> <p>The filename of the audio recording</p> <p><em>annotator_id</em></p> <p>The anonymous ID of the annotator. If this value is positive, it is a citizen science volunteer from the Zooniverse platform. If it is negative, it is a SONYC team member. If it is <code>0</code>, then it is the ground truth agreed-upon by the SONYC team.</p> <p><em>year</em></p> <p>The year the recording is from.</p> <p><em>week</em></p> <p>The week of the year the recording is from.</p> <p><em>day</em></p> <p>The day of the week the recording is from, with Monday as the start (i.e. <code>0</code>=Monday).</p> <p><em>hour</em></p> <p>The hour of the day the recording is from</p> <p><em>borough</em><br> The NYC borough in which the sensor is located (<code>1</code>=Manhattan, <code>3</code>=Brooklyn, <code>4</code>=Queens). This corresponds to the first digit in the 10-digit NYC parcel number system known as Borough, Block, Lot (BBL).</p> <p><em>block</em></p> <p>The NYC block in which the sensor is located. This corresponds to digits 2—6 digit in the 10-digit NYC parcel number system known as Borough, Block, Lot (BBL).</p> <p><em>latitude</em></p> <p>The latitude coordinate of the <strong>block</strong> in which the sensor is located.</p> <p><em>longitude</em></p> <p>The longitude coordinate of the <strong>block</strong> in which the sensor is located.</p> <p><em><coarse_id>-<fine_id>_<fine_name>_presence</em></p> <p>Columns of this form indicate the presence of fine-level class. <code>1</code> if present, <code>0</code> if not present. If <code>-1</code>, then the class was not labeled in this annotation because the annotation was performed by a SONYC team member who only annotated one coarse group of classes at a time when annotating the verified subset.</p> <p><em><coarse_id>_<coarse_name>_presence</em></p> <p>Columns of this form indicate the presence of a coarse-level class. <code>1</code> if present, <code>0</code> if not present. If <code>-1</code>, then the class was not labeled in this annotation because the annotation was performed by a SONYC team member who only annotated one coarse group of classes at a time when annotating the verified subset. These columns are computed from the fine-level class presence columns and are presented here for convenience when training on only coarse-level classes.</p> <p><em><coarse_id>-<fine_id>_<fine_name>_proximity</em></p> <p>Columns of this form indicate the proximity of a fine-level class. After indicating the presence of a fine-level class, citizen science annotators were asked to indicate the proximity of the sound event to the sensor. Only the citizen science volunteers performed this task, and therefore this data is not included in the verified annotations. This column may take on one of the following four values: (<code>near</code>, <code>far</code>, <code>notsure</code>, <code>-1</code>). If <code>-1</code>, then the proximity was not annotated because either the annotation was not performed by a citizen science volunteer, or the citizen science volunteer did not indicate the presence of the class.</p> <p> </p> <p><strong>Conditions of use</strong></p> <p>Dataset created by Mark Cartwright, Jason Cramer, Ana Elisa Mendez Mendez, Yu Wang, Ho-Hsiang Wu, Vincent Lostanlen, Magdalena Fuentes, Graham Dove, Charlie Mydlarz, Justin Salamon, Oded Nov, and Juan Pablo Bello</p> <p>The SONYC-UST dataset is offered free of charge under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) license:<br> <a href="https://creativecommons.org/licenses/by/4.0/">https://creativecommons.org/licenses/by/4.0/</a></p> <p>The dataset and its contents are made available on an “as is” basis and without warranties of any kind, including without limitation satisfactory quality and conformity, merchantability, fitness for a particular purpose, accuracy or completeness, or absence of errors. Subject to any liability that may not be excluded or limited by law, New York University is not liable for, and expressly excludes all liability for, loss or damage however and whenever caused to anyone by any use of the SONYC-UST dataset or any part of it.</p> <p> </p> <p><strong>Feedback</strong></p> <p>Please help us improve SONYC-UST by sending your feedback to:</p> <ul> <li>Mark Cartwright: <a href="mailto:mcartwright@gmail.com">mcartwright@gmail.com</a></li> </ul> <p>In case of a problem, please include as many details as possible.</p> <p> </p> <p><strong>Acknowledgments</strong></p> <p>We would like to thank all the Zooniverse volunteers who continue to contribute to our project. This work is supported by <a href="https://www.nsf.gov/awardsearch/showAward?AWD_ID=1544753">National Science Foundation award 1544753</a>.</p> <p> </p> <p><strong>Change log</strong></p> <ul> <li>2.3 Added the ground truth annotations for the test set, and regrouped the audio files for upload to Zenodo.</li> <li>2.2 Added the audio for the test set (audio-eval.tar.gz).</li> <li>2.1 The DCASE 2020 development dataset. 14778 new recordings added along with coarse spatiotemporal context information.</li> <li>1.0 Data is the same as v0.4. Publication added to README.</li> <li>0.4 Fixed error in annotations. Previously, the coarse class "machinery-impact" was accidentally indicated as present whenever "non-machinery-impact" was present regardless of the presence of "machinery-impact". This error has been fixed.</li> <li>0.3 Test set annotations added</li> <li>0.2 Test set audio files added</li> </ul>
Neural Network Adaption for Depth Sensor Replication (Datasets)
<p>This repository contains the datasets used in the paper "Neural Network Adaption for Depth Sensor<br> Replication". They contain RGB-D data that was recorded using iPads where the Structure_Sensor set was recorded using an Occipital Structure Sensor while Apple_Lidar used the inbuilt iPad LiDAR sensor with enabled smoothing by ARKit. The Structure Sensor data is scaled so that the maximum value is 4 meters while the LiDAR data is scaled to 8 meters as it provides more accuracy at longer ranges.</p>
Network Theme: Sensor Technologies - Dr Sergiy Korposh (University of Nottingham)
<p>This video is the second talk from our Future Blood Testing Network Plus Launch that took place on the 23/11/2021.</p> <p>Network Theme: Sensor Technologies - Dr Sergiy Korposh (University of Nottingham)</p> <p>Bio: Dr Sergiy Korposh is an Associate Professor in Electronics, Nanoscale Bioelectronics and Biophotonics at University of Nottingham. His current research focuses on the development of fibre optic sensors and instrumentation for biomedical application from discovery at the interface with physics and chemistry through to application addressing major healthcare challenges. He has published over 100 (h-index 21) peer-reviewed journal and conference papers, book contributions, holds 11 patents (4 licensed to UK and Japanese companies) and given invited presentations at international meetings in the field of optical fibre chemical sensors. He has managed as a PI and Co-I a total funding portfolio of £3.5 million in the area of biomedical point of care sensors. He was a Director of the EPSRC funded Network Cyclops (EP/N026985/1, Closed Loop Control Systems for Optimising Treatment, http://www.healthcaretechnologies.ac.uk/cyclops/); with the aim to facilitate the formation of a community of academics, clinicians and industrialists, across multiple disciplines (photonic sensing, advanced materials, treatment, and mathematical modelling), including international collaborators to address grand challenges in automation of treatment in healthcare.</p> <p>Further details on this event can be found at: https://futurebloodtesting.org/event/23-11-21-future-blood-testing-network-launch/</p> <p>This video is an output from the Future Blood Testing Network which is funded by EPSRC under Grant Number EP/W000652/1</p> <p>YouTube Link: https://youtu.be/tv0JydXOdUI</p>
Instances of the problem of Designing a Multi-sink Clustered Wireless Sensor Network.
Open the record for dataset details and reuse information.
Data from: Performance of social network sensors during Hurricane Sandy
Information flow during catastrophic events is a critical aspect of disaster management. Modern communication platforms, in particular online social networks, provide an opportunity to study such flow and derive early-warning sensors, thus improving emergency preparedness and response. Performance of the social networks sensor method, based on topological and behavioral properties derived from the "friendship paradox", is studied here for over 50 million Twitter messages posted before, during, and after Hurricane Sandy. We find that differences in users' network centrality effectively translate into moderate awareness advantage (up to 26 hours); and that geo-location of users within or outside of the hurricane-affected area plays a significant role in determining the scale of such an advantage. Emotional response appears to be universal regardless of the position in the network topology, and displays characteristic, easily detectable patterns, opening a possibility to implement a simple "sentiment sensing" technique that can detect and locate disasters.
SONYC-Backgrounds: a collection of urban background recordings from an acoustic sensor network
<p><strong>Created by</strong></p> <p>Aurora Cramer <sup>(1, 2)</sup>, Mark Cartwright <sup>(3)</sup>, Fatemeh Pishdadian <sup>(4)</sup>, Juan Pablo Bello <sup>(1,2,5,6)</sup></p> <p> 1. Music and Audio Research Lab, New York University<br> 2. Department of Electrical and Computer Engineering, New York University<br> 3. Department of Informatics, New Jersey Institute of Technology<br> 4. Interactive Audio Lab, Northwestern University<br> 5. Center for Urban Science and Progress, New York University<br> 6. Department of Computer Science and Engineering, New York University</p> <p><br> <strong>Publication</strong></p> <p>If you use this data in your work, please cite the following paper, which introduced this dataset:</p> <p>[1] Cramer, A., Cartwright, M., Pishdadian, F., and Bello, J.P. Weakly Supervised Source-Specific Sound Level Estimation in Noisy Soundscapes. In Proceedings of the IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), 2021. [<a href="https://arxiv.org/pdf/2105.02911">pdf</a>]</p> <p><br> <strong>Description</strong></p> <p>SONYC-Backgrounds is an open dataset of recordings of urban background noise obtained from the <a href="https://wp.nyu.edu/sonyc/">SONYC</a> acoustic sensor network [2]. This dataset was developed with the goal of synthesizing soundscapes with a diverse set of realistic sounding background activity, for use in developing and evaluating machine listening systems in urban settings.</p> <p><br> <strong>Data acquisition</strong></p> <p>The provided audio has been acquired using the <a href="https://wp.nyu.edu/sonyc/">SONYC</a> acoustic sensor network for urban noise pollution monitoring [2]. Over 50 different sensors have been deployed in New York City. All recordings are 10 seconds and were recorded with identical microphones at identical gain settings.</p> <p><br> <strong>Recording selection</strong></p> <p>From the large collection of audio recordings acquired in 2017, we obtain a much smaller subset of likely background recordings. We first process the dataset using a sensor fault detector to filter out recordings with artifacts caused by hardware failures in the sensors. The sensor fault detector is a random forest, trained with a small collection of audio examples using active learning [3].</p> <p>We then determine if a recording is background or not using an urban sound classifier trained to detect the presence of sources of interest to urban noise pollution monitoring [4, 5]. We use the classifier to find recordings that *do not* contain the sound classes of interest. The classifier model is a multi-layer perception with two hidden layers, which takes as input an OpenL3 embedding [6] for a 1 s clip of audio and produces multi-label prediction probabilities for each class. This model is nearly identical to the one used for the <a href="http://dcase.community/challenge2019/task-urban-sound-tagging">DCASE 2019 Challenge Urban Sound Tagging Task</a> baseline model, aside from the addition of an extra hidden layer.</p> <p>Predictions for entire recordings are obtained by max-pooling the predictions for each class across time. A recording is considered background if the probabilities of the target classes fall below their respective detection thresholds, i.e. no target classes are detected. The classifier was trained on the SONYC-UST v1 dataset [4], and the detection thresholds for each class were tuned to correspond to 70% <em>negative</em> recall (true negative rate) on the test set to increase the likelihood that recordings are background.</p> <p>After this selection process, we obtain 441 background clips.</p> <p> </p> <p><strong>Metadata</strong></p> <p>To maintain privacy, the recordings in this release have been distributed in time and location, and recording times have been quantized to the hour. Sensor IDs are consistent with those SONYC-UST dataset [4]. The corresponding location of the sensors can be found in the SONYC-UST v2 dataset [5], though these locations have been mapped to the "block" level to maintain privacy. See the <a href="http://dcase.community/challenge2020/task-urban-sound-tagging-with-spatiotemporal-context">DCASE 2020 Challenge Urban Sound Tagging with Spatiotemporal Context Task page</a> for more information on the metadata.</p> <p><br> <strong>Data splits</strong></p> <p>The dataset is partitioned into a train/valid/test split of roughly 60/20/20, using a simple greedy method to assign sensors to subsets.</p> <p><br> <strong>Files</strong></p> <p>The dataset directory contains the directories `train`, `valid`, and `test` for each of the respective data subsets. Each directory contains recordings, with the file format: `<sensor-id>_<year>-<month>-<day>_<hour>_<instance-num>.wav`, where `<instance-num>` is used to distinguish recordings from the same sensor occurring during the same hour. Aside from `<year>`, each of these fields in the format are lead zero padded to two places (i.e. `printf` format `"%02d"`).</p> <p><br> <strong>Conditions of use</strong></p> <p>Dataset created by Aurora Cramer, Mark Cartwright, Fatemeh Pishdadian, and Juan Pablo Bello.</p> <p>The SONYC-Backgrounds dataset is offered free of charge under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) license: <a href="https://creativecommons.org/licenses/by/4.0/">https://creativecommons.org/licenses/by/4.0/</a></p> <p>The dataset and its contents are made available on an “as is” basis and without warranties of any kind, including without limitation satisfactory quality and conformity, merchantability, fitness for a particular purpose, accuracy or completeness, or absence of errors. Subject to any liability that may not be excluded or limited by law, New York University is not liable for, and expressly excludes all liability for, loss or damage however and whenever caused to anyone by any use of the SONYC-Backgrounds dataset or any part of it.</p> <p> </p> <p><strong>Contact</strong></p> <p>If you have any questions, comments, or concerns, please direct correspondence to Aurora Cramer (aurora (dot) linh (dot) cramer (at) gmail (dot) com).</p> <p><br> <strong>References and Links</strong></p> <p>[1] Cramer, A., Cartwright, M., Pishdadian, F., and Bello, J.P. Weakly Supervised Source-Specific Sound Level Estimation in Noisy Soundscapes. In Proceedings of the IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), 2021.</p> <p>[2] Bello, J. P., Silva, C., Nov, O., Dubois, R. L., Arora, A., Salamon, J., C. Mydlarz, and Doraiswamy, H. (2019). Sonyc: A system for monitoring, analyzing, and mitigating urban noise pollution. Communications of the ACM, 62(2), 68-77.</p> <p>[3] Wang, Y., Mendez, A.E.M., Cartwright, M., and Bello, J.P. Active Learning for Efficient Audio Annotation and Classification with a Large Amount of Unlabeled Data. In Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2019.</p> <p>[4] Cartwright, M., Mendez, A.E.M., Cramer, A., Lostanlen, V., Dove, G., Wu, H., Salamon, J., Nov, O., and Bello, J.P. SONYC Urban Sound Tagging (SONYC-UST): A Multilabel Dataset from an Urban Acoustic Sensor Network. In Proceedings of the Workshop on Detection and Classification of Acoustic Scenes and Events (DCASE) , 2019.</p> <p>[5] Cartwright, M., Cramer, A., Mendez, A.E.M., Wang, Y., Wu, H., Lostanlen, V., Fuentes, M., Dove, G., Mydlarz, C., Salamon, J., Nov, O., and Bello, J.P. SONYC-UST-V2: An Urban Sound Tagging Dataset with Spatiotemporal Context. In Proceedings of the Workshop on Detection and Classification of Acoustic Scenes and Events (DCASE), 2020.</p> <p>[6] Look, Listen and Learn More: Design Choices for Deep Audio Embeddings<br> Cramer, A., Wu, H.-H., Salamon J., and Bello. J.P. In Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2019.</p> <p><br> <strong>Acknowledgements</strong></p> <p>We would like to thank <a href="https://wp.nyu.edu/sonyc/people/">all those involved in the SONYC project</a>. This work is partially supported by National Science Foundation <a href="https://www.nsf.gov/awardsearch/showAward?AWD_ID=1633259">award 1633259</a> and <a href="https://www.nsf.gov/awardsearch/showAward?AWD_ID=1544753">award 1544753</a>.</p> <p> </p>
Data for Objective identification of pressure wave events from networks of 1-Hz, high-precision sensors
<p>Data from pressure sensors assembled by Matthew Miller which consist of either a Bosch BMP388 or Bosch BME280 Adafruit breakout board connected to a Raspberry Pi Zero W single-board computer used to log the data. Data are recorded at 1-second intervals. The data are stored in .csv files: one for each day for each sensor. Sensors were placed in networks in the Toronto, ON, Canada, New York, NY, USA, and Raleigh, NC, USA metro areas. Code for processing these data can be found at https://doi.org/10.5281/zenodo.8087843.</p>
New key management scheme lattice-based for wireless sensor networks
<p><span>The cluster structure can effectively reduce the cost of mutual authentication of sensor nodes, which is conducive to the expansion of the network, and can guarantee the security of authentication between sensor nodes even in the post-quantum era. The size of the lattice-based authentication proposed in this paper does not change much with the continuous improvement of the security level of the RSA algorithm. The size of the certificate is kept at a stable level, which is more suitable for encrypting large data at a high-security level.</span></p>
Validation of a Remote Wireless Sensor Network (WSN) Approach to the Individualized Detection of Cocaine Use in Humans
ClinicalTrials.gov study NCT02018263. IPD Sharing: Not stated. Countries: 1. Publications: 0.
A survey of sensor network use and data management among academic ecologists
Open the record for dataset details and reuse information.
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