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aggregate query processing in sensor networks

  • aggregate query processing sensor networks

    Sensor network applications rely heavily on aggregate queri Queries are also considered a natural way for users to interact with the sensor network [23] Therefore, several studies have been carried toward (aggregate) query processing in sensor networks [20,21,23] The common approach to query processing in sensor networks has two phas


  • aggregate query processing in sensor networks

    Approximate Aggregation Techniques for Sensor Databases. tention paid to efficient query processing for aggregate queries [15, 20, 23]. In the TAG system [15], users connect to the sen- sor network using a workstation or...


  • Processing approximate aggregate queries in wireless ...

    In-network data aggregation has been recently proposed as an effective 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 …


  • Processing approximate aggregate queries in wireless ...

    Request PDF on ResearchGate | Processing approximate aggregate queries in wireless sensor networks | Abstract In-network data aggregation has been recently proposed as …


  • Robust and Efficient Aggregate Query Processing in ...

    Wireless sensor networks have been widely used in many applications, such as soil temperature monitoring for plant growth and abnormal event detection of industrial parameters. Among these applications, aggregate queries, such as SUM, COUNT, AVERAGE, MIN and MAX are often used to collect statistical data.


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

    gate queries over sensor networks in an energy–efficient manner. From the databases perspective, in–network aggregation provides a mechanism for evaluating aggregate queries over sensor networks. The common approach to (aggre-gate) query processing in sensor networks has two phases: the dissemination phase and the aggregation phase. For ...


  • Poster Abstract: Energy›Efcient Data Organization and ...

    Recent sensor networks research has produced a class of data stor-age and query processing techniques called Data-Centric Storage that leverages locality-preserving distributedindexes like DIM,DIFS, and GHT to efciently answer multi-dimensional range and range-aggregate queries. These distributed indexes offer a rich design


  • TinyCasper: A Privacy-Preserving Aggregate Location ...

    monitor moving objects in wireless sensor networks while preserving their location privacy. TinyCasper consists of two main modules, in-network location anonymization and aggregate query processing over anonymizedlocations. Inthe rst module, trusted wireless sensor nodes collaborate with each other to anonymize users' exact locations by a cloaked


  • aggregate query processing sensor networks

    Aggregate Query Processing In Sensor Networks. Aggregate query processing in the presence of duplicates. 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 ...


  • CAPS: Energy-Efficient Processing of Continuous …

    CAPS: Energy-Efficient Processing of Continuous Aggregate Queries in Sensor Networks Wen Hu University of New South Wales National ICT Australia Limited [email protected] Archan Misra IBMTJWatson Research Center, Next-Gen Web Infrastructure Dept. [email protected] Rajeev Shorey IBM India Research Laboratory [email protected] Abstract


  • 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 …


  • Processing approximate aggregate queries in wireless ...

    Dec 01, 2006· Read "Processing approximate aggregate queries in wireless sensor networks, Information Systems" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.


  • Robust and Efficient Aggregate Query Processing in ...

    Robust and Efficient Aggregate Query Processing in Wireless Sensor Networks Article in Mobile Networks and Applications 13(1-2):212-227 · April 2008 with 37 Reads How we measure 'reads'


  • aggregate query processing sensor networks

    aggregate quarry processing sensor networks - agemobe. aggregate query processing in wireless sensor network aggregate query processing in wireless sensor network Histogram and Other, Quarry Aggregate Plant,Robust Computation of Aggregates in Wireless Sensor Networks For cooperative processing in a sensor network, the information of interest ...


  • On the Use of Histograms for Processing Exact Aggregate ...

    On the Use of Histograms for Processing Exact Aggregate Queries in Wireless Sensor Networks Khaled Ammar Mario A. Nascimento Department of Computing Science, University of Alberta, Canada {kammar, mn}@cs.ualberta.ca ABSTRACT Wireless Sensor Networks (WSNs) are typically used to col-lect values of some phenomena in a monitored area. In many


  • Aggregate Location Monitoring for Wireless Sensor Networks ...

    location-based query processing in wireless sensor networks. However, since all previous works in this area rely on users' exact locations and/or identities, none of these works consider query processing over aggregate location data. Spatio-temporal histograms. Research efforts for spatio-temporal histograms aim to provide selectivity ...


  • aggregate query processing in wireless sensor network

    aggregate query processing in wireless sensor network. Sensor Networks, Wireless Sensor Network... Sensor Networks. AggreGate can be easily used to monitor multiple sensors and operate complex control logic. Let's say you operate a huge organic greenhouse. Chat Online.


  • Processing approximate aggregate queries in wireless ...

    Processing approximate aggregate queries in wireless sensor networks ... This is a recursive procedure which ultimately results in the evaluation of the aggregate query at the Root node. After waiting for messages from its children nodes, the current node computes the new value of the partial aggregate based on the most current partial ...


  • (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.


  • Poster Abstract: Routing and Processing Multiple Aggregate ...

    We present a novel approach to processing continuous aggregate queries in sensor networks, which lifts the as-sumption of tree-based routing. Given a query workload and a special-purpose gateway node where results are ex-pected, the query optimizer exploits query correlations in order to generate an energy-efcient distributed evaluation plan.


  • The Design and Evaluation of a Query Processing ...

    The Design and Evaluation of a Query Processing Architecture for Sensor Networks by Ross Madden Doctor of Philosophy in Computer Science University of California, Berkeley Professor Michael J. Franklin, Chair With the advent of small, battery-powered, wireless computing and sensing technology, it is


  • Routing and Processing Multiple Aggregate Queries in ...

    This paper presents a query-driven approach to routing and processing continuous aggregate queries in sensor networks. 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 energyefficient distributed evaluation plan.


  • Assembling Regions for Efficacious Aggregate Query ...

    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


  • Query Processing for Sensor Networks

    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 …


  • Processing Approximate Aggregate Queries in Wireless ...

    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 …


  • Processing approximate aggregate queries in wireless ...

    [14,15] and in-network query processing [2,5,7,16]. A survey of the applications and the challenges that sensor networks introduce is presented in [4]. For monitoring queries that aggregate the observed values from a group of sensor nodes, [5] suggested the construction of a greedy aggrega-tion tree that seeks to maximize the number of


  • Accuracy Vs Lifetime: Linear Sketches for Appoximate ...

    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 have been carried toward (aggregate) query processing in sensor networks [20,21,23]. The common approach to query processing in sensor networks has two phases.


  • Aggregate query processing in the presence of duplicates ...

    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 in-network aggregation problem.


  • aggregate quarry processing sensor networks

    aggregate query processing sensor networks. aggregate query processing sensor networks - machiibe aggregate query processing sensor networks Mining is the extraction of valuable minerals or other geological materials from the earth, from an orebody, lode, vein, (coal) seam or reef, which forms the Contact Supplier; Aggregate Queries in Wireless ...


  • Supporting Spatial Aggregation in Sensor Network …

    network processing of the aggregation queries on the data generated in the sensor network. We use the ad-hoc query routing algorithm of TAG to disseminate our query into the network. Our spatial aggregate operators are compatible with the aggregate processing of TAG and easily portable to TinyDB. Zhao et al. in [9] introduce an architecture for ...