aggregate quarry processing sensor networks

Aggregate query processing in the presence of duplicates ...

Aggregate query processing in the presence of duplicates in wireless sensor networks. Author links open overlay panel Jun-Ki Min a Raymond T. Ng b Kyuseok Jun-Ki Min a Raymond T. Ng b Kyuseok

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Robust and Efficient Aggregate Query Processing in ...

2008-5-8  Wireless sensor networks have been widely used in many environmental monitoring applications [].In most of these applications, aggregate queries, such as SUM, COUNT, AVERAGE (AVG), MIN and MAX, are often used as statistics collected from sensors [12, 13, 22].However, it is known that data collected from sensors are often noisy for various reasons, such as sensing device noise, inaccuracies in ...

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Aggregate query processing in the presence of duplicates ...

2015-3-10  In WSNs with such sensors, an object may be detected by several sensor nodes and processing of aggregate queries (such as COUNT, SUM and AVERAGE) becomes problematic since an identical object can be considered redundantly.

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Interplay of processing and routing in aggregate query ...

2015-10-5  Interplay of processing and routing in aggregate query optimization for sensor networks Niki Trigoni Alexandre Guitton Antonios Skordylis Computing Laboratory, University of Oxford, Oxford OX1 3QD, UK Abstract. This paper presents a novel approach to processing continuous aggre-gate queries in sensor networks, which lifts the assumption of tree ...

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Assembling Regions for Efficacious Aggregate Query ...

2019-4-10  Assembling Regions for Efficacious Aggregate Query Processing in Wireless Sensor Networks by Apostolos Fertis Diploma, Electrical and Computer Engineering (2003) National Technical University of Athens Submitted to the Department of Electrical Engineering and Computer Science in partial fulfillment of

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Routing and processing multiple aggregate queries in ...

We present a novel approach to processing continuous aggregate queries in sensor networks, which lifts the assumption of tree-based routing. Given a query workload and a special-purpose gateway node where results are expected, the query optimizer exploits query correlations in order to

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Processing Approximate Aggregate Queries in Wireless ...

Processing Approximate Aggregate Queries in Wireless Sensor Networks Antonios Deligiannakisa Yannis Kotidisb Nick Roussopoulosa aUniversity of Maryland bATT Labs-Research Abstract In-network data aggregation has been recently proposed as an effective means to reduce the number of messages exchanged in wireless sensor networks.

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Interplay of Processing and Routing in Aggregate Query ...

2008-1-5  This paper presents a novel approach to processing continuous aggregate queries in sensor networks, which lifts the assumption of tree-based routing. Given a query workload and a special-purpose gateway node where results are expected, the query optimizer exploits query correlations in order to generate an energy-efficient distributed ...

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Poster Abstract: Routing and Processing Multiple

2015-10-5  and processing in evaluating aggregate queries in sensor net-works. STG exploits the fact that the intersectingqueryareas naturally divide the network into smaller segments, and par-tially aggregates all values within the same segment before forwarding the partial aggregate to the gateway. In addition,

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[PDF] Routing and processing multiple aggregate queries in ...

We present a novel approach to processing continuous aggregate queries in sensor networks, which lifts the assumption of tree-based routing. Given a query workload and a special-purpose gateway node where results are expected, the query optimizer exploits query correlations in order to

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Aggregate query processing in the presence of duplicates ...

Wireless sensor networks (WSNs) have received increasing attention in the past decade. In existing studies for query processing of WSNs, each sensor node measures environmental parameters such as ...

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(PDF) Routing and processing multiple aggregate queries in ...

Poster Abstract: Routing and Processing Multiple Aggregate Queries in Sensor Networks Niki Trigoni Alexandre Guitton Antonios Skordylis Birkbeck College, University of London, London WC1E 7HX, United Kingdom {niki,alexandre,adonis}@dcs.bbk.ac.uk Abstract We present a novel approach to processing continuous aggregate queries in sensor networks, which lifts the as- sumption of tree-based routing.

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(PDF) Interplay of Processing and Routing in Aggregate ...

processing aggregate queries like avg, count, su m, min and max in sensor networks. The concept of semantic routing tree s (SRTs) [9] is used to forward queries on ly to children that satisfy the ...

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Interplay of Processing and Routing in Aggregate Query ...

2008-1-5  This paper presents a novel approach to processing continuous aggregate queries in sensor networks, which lifts the assumption of tree-based routing. Given a query workload and a special-purpose gateway node where results are expected, the query optimizer exploits query correlations in order to generate an energy-efficient distributed ...

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Interplay of processing and routing in aggregate query ...

Interplay of processing and routing in aggregate query optimization for sensor networks. Share on. Authors: Niki Trigoni. Computing Laboratory, University of Oxford, Oxford,

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Effective processing of continuous group-by aggregate ...

Abstract: Aggregate queries are one of the most important queries in sensor networks. Especially, group-by aggregate queries can be used in various sensor network applications such as tracking, mon...

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Poster Abstract: Routing and Processing Multiple

2015-10-5  and processing in evaluating aggregate queries in sensor net-works. STG exploits the fact that the intersectingqueryareas naturally divide the network into smaller segments, and par-tially aggregates all values within the same segment before forwarding the partial aggregate to the gateway. In addition,

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[PDF] Routing and processing multiple aggregate queries in ...

We present a novel approach to processing continuous aggregate queries in sensor networks, which lifts the assumption of tree-based routing. Given a query workload and a special-purpose gateway node where results are expected, the query optimizer exploits query correlations in order to

More

CAPS: energy-efficient processing of continuous aggregate ...

2006-3-17  In this paper, we design and evaluate an energy efficient data retrieval architecture for continuous aggregate queries in wireless sensor networks. We show how the modification of precision in one sensor affects the sample-reporting frequency of other sensors, and how the precisions of a group of sensors may be collectively modified to achieve the target quality of information (QoI) with ...

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Secure Data Aggregation in Wireless Sensor Networks IEEE ...

2012-3-2  In a large sensor network, in-network data aggregation significantly reduces the amount of communication and energy consumption. Recently, the research community has proposed a robust aggregation framework called synopsis diffusion which combines multipath routing schemes with duplicate-insensitive algorithms to accurately compute aggregates (e.g., predicate Count, Sum) in spite of message ...

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(PDF) Routing and processing multiple aggregate queries in ...

Poster Abstract: Routing and Processing Multiple Aggregate Queries in Sensor Networks Niki Trigoni Alexandre Guitton Antonios Skordylis Birkbeck College, University of London, London WC1E 7HX, United Kingdom {niki,alexandre,adonis}@dcs.bbk.ac.uk Abstract We present a novel approach to processing continuous aggregate queries in sensor networks, which lifts the as- sumption of tree-based routing.

More

Effective processing of continuous group-by aggregate ...

Abstract: Aggregate queries are one of the most important queries in sensor networks. Especially, group-by aggregate queries can be used in various sensor network applications such as tracking, mon...

More

Poster Abstract: Routing and Processing Multiple

2015-10-5  and processing in evaluating aggregate queries in sensor net-works. STG exploits the fact that the intersectingqueryareas naturally divide the network into smaller segments, and par-tially aggregates all values within the same segment before forwarding the partial aggregate to the gateway. In addition,

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CiteSeerX — Processing Approximate Aggregate Queries in ...

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): In-network data aggregation has been recently proposed as an e#ective means to reduce the number of messages exchanged in wireless sensor networks. Nodes of the network form an aggregation tree, in which parent nodes aggregate the values received from their children and propagate the result to their own parents.

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CAPS: energy-efficient processing of continuous aggregate ...

2006-3-17  In this paper, we design and evaluate an energy efficient data retrieval architecture for continuous aggregate queries in wireless sensor networks. We show how the modification of precision in one sensor affects the sample-reporting frequency of other sensors, and how the precisions of a group of sensors may be collectively modified to achieve the target quality of information (QoI) with ...

More

CAPS: Energy-Efficient Processing of Continuous Aggregate ...

In this paper, we design and evaluate an energy efficient data retrieval architecture for continuous aggregate queries in wireless sensor networks. We show how the modification of precision in one sensor affects the sample-reporting frequency of other sensors, and how the precisions of a group of sensors may be collectively modified to achieve the target Quality of Information (QoI) with ...

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Data aggregation techniques in sensor networks: A survey

2020-10-13  Wireless sensor networks consist of sensor nodes with sensing and communication capabilities. We focus on data aggregation problems in energy constrained sensor networks. The main goal of data aggregation algorithms is to gather and aggregate data in an energy efficient manner so that network

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Secure Data Aggregation in Wireless Sensor Networks IEEE ...

2012-3-2  In a large sensor network, in-network data aggregation significantly reduces the amount of communication and energy consumption. Recently, the research community has proposed a robust aggregation framework called synopsis diffusion which combines multipath routing schemes with duplicate-insensitive algorithms to accurately compute aggregates (e.g., predicate Count, Sum) in spite of message ...

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The Future of Quarry Management is Now Agg-Net

2021-8-2  The problem is a lack of connectivity between solutions – a challenge that quarry managers and aggregate producers will increasingly face. Much like a project manager relies on an overarching solution to bring together progress data from a job site, quarry and aggregate producers should begin to think about quarry workflow-relevant reporting ...

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Impact of Data Aggregation in Wireless Sensor Networks

2004-9-20  Sensor networks are quintessentially event-based sys-tems. A sensor network consists of one or more “sinks” which subscribe to specific data streams by expressing interests or queries. The sensors in the network act as “sources” which detect environmental events and push rel-evant data to the appropriate subscriber sinks. For ex-

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