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aggregate query processing in sensor networks in philippines

Robust and Efficient Aggregate Query Processing in Wireless Sensor Networks Article in Mobile Networks and Applications 1312212227 · April 2008 with 38 Reads How we measure reads

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  • Robust and Efficient Aggregate Query Processing in

    Robust and Efficient Aggregate Query Processing in Wireless Sensor Networks Article in Mobile Networks and Applications 1312212227 · April 2008 with 38 Reads How we measure reads

  • Aggregate query processing in the presence of duplicates

    Mar 10 2015 · In addition when the sensing areas of sensor nodes are disjoint the coordinator of each sensor becomes itself and we perform traditional aggregate query processing Thus the problem we are considering is a generalization of the traditional innetwork aggregation problem

  • An adaptive innetwork 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 innetwork aggregation operator for query processing in sensor nodes of a WSN called ADAGA ADaptive AGgregation Algorithm for sensor networks

  • Aggregate Location Monitoring for Wireless Sensor

    three proposed techniques and the aggregate query processor Section 5 depicts the experiment results Finally Section 6 concludes this paper 2 Related Works In this section we highlight the related works in two areas query processing in wireless sensor networks and spatiotemporal histograms Query processing in sensor networks

  • CiteSeerX  Routing and Processing Multiple Aggregate

    This paper presents a querydriven approach to routing and processing continuous aggregate queries in sensor networks Given a query workload and a specialpurpose gateway node where results are expected the query optimizer exploits query correlations in order to generate an energyefficient distributed evaluation plan

  • Assembling Regions for Efficacious Aggregate Query

    submitted to the network The query asks for an aggregate over the measurements The propagation of all measured values to a central computation point is resource consuming Tiny AGgregation TAG provides an algorithm to compute aggregates by merging and forwarding partial results The merging is done in the internal nodes of the routing tree that is formed

  • Efficient Iceberg Query Processing in Sensor Networks

    The iceberg query finds data whose aggregate values exceed a prespecified threshold To process an iceberg query in sensor networks all sensor data have to be aggregated and then sensor data whose aggregate values are smaller than the threshold are eliminated Whether a certain sensor

  • PDF Assembling regions for efficacious aggregate query

    Assembling regions for efficacious aggregate query processing in wireless sensor networks November 2006 by the query which is submitted to the network The query asks for an aggregate

  • Query Processing for Sensor Networks

    tion of innetwork aggregation with the wireless routing protocol and distributed query processing Initial simulation experiments with the ns2 network simulator show the tradeoffs of our system 1 Introduction Recent developments in hardware have enabled the widespread deployment of sensor networks consisting

  • Robust and Efficient Aggregate Query Processing in

    Robust and Efficient Aggregate Query Processing in Wireless Sensor Networks Article in Mobile Networks and Applications 1312212227 · April 2008 with 38 Reads How we measure reads

  • Skyline Query Processing in Sensor Network Based on Data

    2 Related Work Innetwork aggregation query processing methods used in sensor networks such as TAG only send the aggregated results inside the sensor network so as to reduce the number of enables one to increase sensor network lifetime by reducing energy consumption

  • Efficient Iceberg Query Processing in Sensor Networks

    In a sensor network environment sensor nodes have very limited battery resources Therefore minimizing the energy consumption is the most important issue in sensor networks One main strategy for reducing the energy consumption is to do some query processing tasks in the network as suggested by Sharaf et al 9 andYao and Gehrke 10 The

  • PDF Assembling regions for efficacious aggregate query

    Assembling regions for efficacious aggregate query processing in wireless sensor networks November 2006 by the query which is submitted to the network The query asks for an aggregate

  • Assembling Regions for Efficacious Aggregate Query

    11 Query answering in sensor networks Sensor networks answer queries by finding the nodes which collect the relevant information and by combining their observations This requires that data has to be propagated to the node which will produce the answer A sensor network is a pervasive computing environment which has to manage its resources

  • Query Processing for Sensor Networks

    tion of innetwork aggregation with the wireless routing protocol and distributed query processing Initial simulation experiments with the ns2 network simulator show the tradeoffs of our system 1 Introduction Recent developments in hardware have enabled the widespread deployment of sensor networks consisting

  • Multiquery Optimization for Sensor Networks  SpringerLink

    Jun 30 2005 · In this paper we consider multiquery optimization for aggregate queries on sensor networks We develop a set of distributed algorithms for processing multiple queries that incur minimum communication while observing the computational limitations of the sensor nodes

  • Poster Abstract Routing and Processing Multiple

    We present a novel approach to processing continuous aggregate queries in sensor networks which lifts the assumption of treebased routing Given a query workload and a specialpurpose gateway node where results are expected the query optimizer exploits query correlations in order to generate an energyefcient distributed evaluation plan

  • Interplay of processing and routing in aggregate query

    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 aggregate queries in sensor networks which lifts the assumption of tree

  • Efficient Aggregation Processing in the Presence of

    Such detection of duplicates by several sensor nodes makes the innetwork query evaluation very problematic To alleviate the drawback of observing multiple sensing values for an identical object deduplication of the duplicately observed objects by several sensor nodes is critical for aggregate query processing

  • TinyDB An Acquisitional Query Processing System for

    Acquisitional Query Processing In Sensor Networks • 125 Section 6 discusses our adaptive powersensitive 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

  • Accuracy Vs Lifetime Linear Sketches for Approximate

    aggregate queriesover sensor networksin anenergye cient manner 11 Query Processing in Sensor Networks From the database perspective innetwork aggregation is a mode for evaluating aggregate queries over the sensor network The common approach to aggregate query processing in sensor networks has two phases the dissemination phase and

  • CAPS EnergyEfficient 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 samplereporting 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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