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aggregate query processing sensor networks

aggregate query processing sensor networks

(PDF) Routing and processing multiple aggregate queries

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-

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Robust and Efficient Aggregate Query Processing in ...

2008-5-8 · Query processing on continuous aggregates. In this work, we assume sensor nodes have been organized into a spanning tree and each sensor will generate a sensing value in each round (a short time period). After the creation of a network topology, users can pose a continuous aggregate query, such as AVG, to the network.

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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 the requirements of

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Processing Approximate Aggregate Queries in Wireless ...

2007-7-3 · Processing Approximate Aggregate Queries in Wireless Sensor Networks Antonios Deligiannakisa Yannis Kotidisb Nick Roussopoulosa aUniversity of Maryland bAT&T 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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Optimizing in-network aggregate queries in wireless

This study proposes a method of in-network aggregate query processing to reduce the number of messages incurred in a wireless sensor network. When aggregate queries are issued to

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A note on efficient aggregate queries in sensor networks ...

2007-2-12 · This basic motivation underlies sensor network systems like TAG [9], Cougar [15], and others (see, e.g. [16]). Intuitively, the idea is to view sensors as sources of data, and the goal of the system is to support aggregate queries formed in an SQL-like language.

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Accuracy vs. Lifetime: Linear Sketches for Aggregate ...

2008-8-1 · 1.1 Query Processing in Sensor Networks Queries are considered a natural way for users to interact with the sensor net-work [37]. Further, sensor network applications rely heavily on query processing, particularly of aggregate queries. In this paper we are interested in evaluating aggre-

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Distributed Histograms for Processing Aggregate Data

Abstract: For monitoring moving objects via wireless sensor networks, we introduce two aggregate query types: distinct entries to an area and the number of objects in that area. We present a new technique, Distributed Euler Histograms (DEHs), to store and query aggregated moving object data. Aggregate queries occur in a variety of applications ranging from wildlife

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Accuracy Vs Lifetime: Linear Sketches for Appoximate ...

2008-3-20 · 1.1 Query Processing in Sensor Networks From databases perspective, in–network aggregation is a mode for evaluating aggregate queries over the sensor network. Sensor network applications rely heavily on aggregate queries. Queries are also considered a natural way for users to interact with the sensor network [23]. Therefore, several studies ...

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Query Processing for Sensor Networks - cs.cornell.edu

2002-12-7 · to ensure that the query processing layer is tightly in-tegrated with the networking layer. Second, the notion of the cost of a query plan has changed, as the critical resource in a sensor network is power, and query opti-mization and query processing have to be adapted to take this optimization criterion into account.

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(PDF) Routing and processing multiple aggregate queries

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-

Read More
Processing Approximate Aggregate Queries in Wireless ...

2007-7-3 · Processing Approximate Aggregate Queries in Wireless Sensor Networks Antonios Deligiannakisa Yannis Kotidisb Nick Roussopoulosa aUniversity of Maryland bAT&T 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.

Read More
Optimizing in-network aggregate queries in wireless

This study proposes a method of in-network aggregate query processing to reduce the number of messages incurred in a wireless sensor network. When aggregate queries are issued to the resource-const...

Read More
Accuracy vs. Lifetime: Linear Sketches for Aggregate ...

2008-8-1 · 1.1 Query Processing in Sensor Networks Queries are considered a natural way for users to interact with the sensor net-work [37]. Further, sensor network applications rely heavily on query processing, particularly of aggregate queries. In this paper we are interested in evaluating aggre-

Read More
An adaptive in-network aggregation operator for query ...

Adaptive query operators (algorithms) can adjust their behavior in response to specific events that take place during data processing. In this paper, we propose an adaptive in-network aggregation operator for query processing in sensor nodes of a WSN, called ADAGA (ADaptive AGgregation Algorithm for sensor networks).

Read More
A note on efficient aggregate queries in sensor networks ...

2007-2-12 · This basic motivation underlies sensor network systems like TAG [9], Cougar [15], and others (see, e.g. [16]). Intuitively, the idea is to view sensors as sources of data, and the goal of the system is to support aggregate queries formed in an SQL-like language.

Read More
[PDF] Query processing in sensor networks | Semantic

A smart sensor query-processing architecture using database technology can facilitate deployment of sensor networks and discuss about query processing in sensor networks. Smart sensors are small wireless computing devices that sense information such as light and humidity at extremely high resolutions. A smart sensor query-processing architecture using database

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Query Processing for Sensor Networks - cs.cornell.edu

2002-12-7 · to ensure that the query processing layer is tightly in-tegrated with the networking layer. Second, the notion of the cost of a query plan has changed, as the critical resource in a sensor network is power, and query opti-mization and query processing have to be adapted to take this optimization criterion into account.

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Data Aggregation in Wireless Sensor Network: A Survey

2013-11-12 · Wireless sensor networks (WSNs) consist of sensor nodes. These networks have huge application in habitat monitoring, disaster management, security and military, etc. Wireless sensor nodes are very small in size and have limited processing capability very low battery power. This restriction of low battery power makes the sensor network

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TinyDB: An Acquisitional Query Processing System for ...

2007-1-16 · Acquisitional Query Processing In Sensor Networks • 125 Section 6 discusses our adaptive, power-sensitive model for query execution and result collection. 2. SENSOR NETWORK OVERVIEW We begin with an overview of some recent sensor network deployments, and then discuss properties of sensor nodes and sensor networks in general, provid-

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Optimizing in-network aggregate queries in wireless

This study proposes a method of in-network aggregate query processing to reduce the number of messages incurred in a wireless sensor network. When aggregate queries are issued to the resource-const...

Read More
Accuracy vs. Lifetime: Linear Sketches for Aggregate ...

2008-8-1 · 1.1 Query Processing in Sensor Networks Queries are considered a natural way for users to interact with the sensor net-work [37]. Further, sensor network applications rely heavily on query processing, particularly of aggregate queries. In this paper we are interested in evaluating aggre-

Read More
An adaptive in-network aggregation operator for query ...

Adaptive query operators (algorithms) can adjust their behavior in response to specific events that take place during data processing. In this paper, we propose an adaptive in-network aggregation operator for query processing in sensor nodes of a WSN, called ADAGA (ADaptive AGgregation Algorithm for sensor networks).

Read More
Aggregate Threshold Queries in Sensor Networks | IEEE ...

An important class of queries over sensor networks are network-wide aggregation queries. In this work we study a class of aggregation queries which we refer to as aggregate threshold queries. The goal of an aggregate threshold query is to continuously monitor the network and give a notification every time an aggregated value crosses a predetermined threshold value.

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[PDF] Query processing in sensor networks | Semantic

A smart sensor query-processing architecture using database technology can facilitate deployment of sensor networks and discuss about query processing in sensor networks. Smart sensors are small wireless computing devices that sense information such as light and humidity at extremely high resolutions. A smart sensor query-processing architecture using database

Read More
Robust Management of Outliers in Sensor Network

2007-8-22 · Sensor Network Aggregate Queries ... In this paper, we take a step towards providing a resilient query processing platform over a network consisting of cheap, wireless devices that are prone to failures. We argue that one cannot simply ... plications of sensor networks, that is not based on individual read-

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Processing Aggregate Queries over Continuous Data

2004-5-18 · New Applications: network monitoring, sensor networks, telecom call records • Data arrives in the form of continuous stream ... sensor networks Alin Dobra – Processing Aggregate Queries over Continuous Data ... Stream Query-Processing Engine Stream for R1 Stream for R2 Stream for Rr Memory Query Workload to queries Q1,...,Qq Approximate ...

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Robust Management of Outliers in Sensor Network

2013-9-14 · aggregation process. These nodes are called witnesses and provide a form of positive feedback to the user that may help him better comprehend the set of measurements that shape the result to its ag-gregate query. Our contributions are as follows: • We present a new resilient execution paradigm for comput-ing aggregate queries in sensor networks.

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Query Processing for Sensor Networks

2003-3-8 · Query Processing for Sensor Networks Yong Yao and Johannes Gehrke (Presentation: Anne Denton March 8, 2003)

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TinyDB: An Acquisitional Query Processing System for ...

2007-10-25 · Acquisitional Query Processing In Sensor Networks • 125 Section 6 discusses our adaptive, power-sensitive model for query execution and result collection. 2. SENSOR NETWORK OVERVIEW We begin with an overview of some recent sensor network deployments, and then discuss properties of sensor nodes and sensor networks in general, provid-

Read More