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Supporting spatial aggregation in sensor network databases
2004
Proceedings of the 12th annual ACM international workshop on Geographic information systems - GIS '04
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In this paper, we introduce "spatial aggregations" that take into consideration the distribution of the values generated by the sensor nodes. ...
To demonstrate the performance of in-network implementation of our algorithm, we have developed prototypes of two different approaches to distributed spatial aggregate processing. ...
In this paper, we introduced the spatial aggregation for sensor network databases. ...
doi:10.1145/1032222.1032248
dblp:conf/gis/SharifzadehS04
fatcat:j3exti4yknf5va4zv7kobd4p4q
Cluster By
2007
Proceedings of the 15th annual ACM international symposium on Advances in geographic information systems - GIS '07
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In this paper, we aim at introducing Cluster By into spatial databases to allow a broad range of interesting queries to be posted on spatial clusters. ...
These datasets necessitate the wide application of spatial databases. ...
Our work is further related to sensor database systems due to the inherent georeferenced nature of data collected by sensor networks. ...
doi:10.1145/1341012.1341077
dblp:conf/gis/ZhangH07
fatcat:ewcwixbwpveuhcy7y7qf7jqpby
Visualizing large sensor network data sets in space and time with vizzly
2012
37th Annual IEEE Conference on Local Computer Networks -- Workshops
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A user is completely free in selecting sensor data based on time and location, suitable levels of temporal and spatial detail are automatically chosen by the Vizzly server. ...
This paper presents Vizzly, a middleware for the interactive browsing of large sensor network data sets. ...
The work presented was supported by NCCR-MICS, a center supported by the Swiss National Science Foundation, under grant number 5005-67322. ...
doi:10.1109/lcnw.2012.6424084
dblp:conf/lcn/KellerBST12
fatcat:7ddelfhdgjb75ezey4jwyetevy
SAQA: Spatial and Attribute Based Query Aggregation in Wireless Sensor Networks
[chapter]
2006
Lecture Notes in Computer Science
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In most wireless sensor networks, applications submit their requests as queries and wireless sensor network transmits the requested data to the applications. ...
In this paper, we design an effective query aggregation algorithm SAQA to reduce the number of duplicate/overlapping queries and save overall energy consumption in the wireless sensor networks. ...
Acknowledgement This work was supported by IITA Professorship for Visiting Faculty Positions in Korea from Ministry of Information and Communications. ...
doi:10.1007/11802167_4
fatcat:3fqrwkp2dng7tjkdrmbkpchosa
Window Query Processing in Highly Dynamic GeoSensor Networks
[chapter]
2004
GeoSensor Networks
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However, these existing works have not yet explored the spatial property and the dynamic characteristics of sensor networks. ...
A database-style query interface is natural for development of applications and systems on sensor networks. There are projects pursuing this research direction [14, 15, 25] . ...
We are particularly interested in window query because it is one of the most fundamental and important queries supported in spatial databases. ...
doi:10.1201/9780203356869.ch3
fatcat:7hyxooxcanewnh44fzyujh2pcq
Wireless Sensor Networks Fault Identification Using Data Association
2012
Journal of Computer Science
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In this study, it is proposed to investigate the association of data received in the sink from various nodes across the network. ...
The existence of a large communication overhead affects sensor network performance negatively. ...
Spatial association rules describe the implication of one or a set of features by another set of features in spatial databases. ...
doi:10.3844/jcssp.2012.1501.1505
fatcat:phfn63jvpra7hbxxhrtiiu6x7u
Geohashed Spatial Index Method for a Location-Aware WBAN Data Monitoring System Based on NoSQL
2016
Journal of Information Processing Systems
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In order to efficiently analyze WBAN data, including location information and support medical analysis services, we propose a geohash-based spatial index method for a location-aware WBAN data monitoring ...
This type of spatial index method is a support cloud-based location-aware WBAN data monitoring system. ...
In order to support location-aware services, we have proposed a new spatial index algorithm for a document-based NoSQL database. ...
doi:10.3745/jips.04.0025
fatcat:2gsuh5dutvfapieql4vmdbq3im
Data Management in the Worldwide Sensor Web
2007
IEEE pervasive computing
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Sensor data contain numerous sources of noise and uncertainty, some of which are assessable only after spatial or temporal aggregation. ...
Can we design sensor networks with data quality in mind? ...
Her research interests are broadly in the fields of databases and systems. ...
doi:10.1109/mprv.2007.27
fatcat:4csakiyjyvc33hl6slpbyvgciy
Processing Multiple Aggregation Queries in Geo-Sensor Networks
[chapter]
2006
Lecture Notes in Computer Science
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To process aggregation queries issued through different sensors as access points in sensor networks, existing algorithms handle queries independently and perform in-network aggregation only at the query ...
In this paper, we address this issue by examining strategies to maintain Materialized In-Network Views (MINVs) that pre-compute and store commonly used aggregation results in the sensor network. ...
Acknowledgements In this research, Wang-Chien Lee and Ken C.K. Lee were supported in part by US National Science Foundation grant IIS-0328881. ...
doi:10.1007/11733836_4
fatcat:jhvlr3rbxrebblisux5jcf7zeu
Event Broker Grids with Filtering, Aggregation, and Correlation for Wireless Sensor Data
[chapter]
2005
Lecture Notes in Computer Science
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To manage high volume and faulty sensor data, it requires more sophisticated event filtering, aggregation and correlation over time and space in heterogeneous network environments. ...
A significant increase in real world event monitoring capability with wireless sensor networks brought a new challenge to ubiquitous computing. ...
However, a mainstream of deployments of sensor networks is to collect all the data from the sensor networks and to store them in database. Data analysis is preceded from the data in the database. ...
doi:10.1007/11575863_50
fatcat:tqvrmsgs7bbkpo5jaww3micoci
A Multi-Stage Method for Connecting Participatory Sensing and Noise Simulations
2015
Sensors
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partitions at a more microscopic level of road networks; (2) multi-temporal scale noise estimations at the spatial level of virtual partitions; and (3) dynamic aggregation of virtual partitions by comparing ...
Next, we explain how participatory noise OPEN ACCESS Sensors 2015, 15 2266 data can contribute to a simulation-based noise map by providing (1) spatial matching of the participatory noise data to the virtual ...
Acknowledgments The work described in this study was supported by the National Natural Science Foundation of China . ...
doi:10.3390/s150202265
pmid:25621604
pmcid:PMC4367305
fatcat:3mvtssi6hbgtxgjf3dx7gdklju
Utilizing Voronoi Cells of Location Data Streams for Accurate Computation of Aggregate Functions in Sensor Networks
2007
Geoinformatica
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We also propose AVC-SW, a novel algorithm to approximate this Voronoi cell over a sliding window that supports dynamism in the sensor network. ...
Sensor networks are unattended deeply distributed systems whose database schema can be conceptualized using the relational model. ...
Acknowledgments This research is based upon work supported in part by the National Science Foundation under award numbers IIS-0324955(ITR), EEC-9529152 (IMSC ERC) and IIS-0238560 (CAREER), in part by a ...
doi:10.1007/s10707-007-0024-1
fatcat:unjmk7rklbeebe6ktrbzix6bo4
Utilizing Voronoi Cells of Location Data Streams for Accurate Computation of Aggregate Functions in Sensor Networks
2006
Geoinformatica
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We also propose AVC-SW, a novel algorithm to approximate this Voronoi cell over a sliding window that supports dynamism in the sensor network. ...
Sensor networks are unattended deeply distributed systems whose database schema can be conceptualized using the relational model. ...
Acknowledgments This research is based upon work supported in part by the National Science Foundation under award numbers IIS-0324955(ITR), EEC-9529152 (IMSC ERC) and IIS-0238560 (CAREER), in part by a ...
doi:10.1007/s10707-005-4884-y
fatcat:l2yihv7bpfgllkiutc4x2tn3pm
A Distributed Spatial Index for Time-Efficient Aggregation Query Processing in Sensor Networks
[chapter]
2005
Lecture Notes in Computer Science
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In this paper, distributed spatial index structure in sensor networks for time-efficient aggregation query processing is proposed. ...
Many applications using sensing data require the fast retrieval of aggregated information in sensor networks. ...
In this paper, distributed spatial index structure in sensor networks is proposed for time-efficient aggregation query processing. ...
doi:10.1007/11428831_50
fatcat:ucwakr5gffdejayytw2fig6pcm
Query Processing in Sensor Networks
[chapter]
2012
Distributed Sensor Networks, Second Edition
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We examine the main architectural components of such a query layer, concentrating on in-network aggregation, interaction of in-network aggregation with the wireless routing protocol, and distributed query ...
In this paper, we evaluate the design of a query layer for sensor networks. ...
We thank the DARPA Sen-sIT community for helpful discussions about the role of query processing in sensor networks. ...
doi:10.1201/b12988-20
fatcat:k44vrdclg5hk3fvgatdipgehim
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