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an aggregate query processing system for wireless network

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  • The Impact of Data Aggregation on the Performance of ...

    network reducing the bandwidth usage and eliminating the unnecessary energy consumption in both transmissions and receptions. This is the peer reviewed version of the following article: Akkaya, K., Demirbas, M. and Aygun, R. S. (2008), The impact of data aggregation on the performance of wireless sensor networks. Wirel. Commun. Mob.

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

    Accuracy Vs Lifetime: Linear Sketches for Appoximate Aggregate Range Queries in Sensor Networks1,2 Konstantinos Kalpakis, Vasundhara Puttagunta and Parag Namjoshi Abstract Query processing in sensor networks is critical for several sensor based monitoring applications and poses several challenging research problems. The in–network aggregation ...

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  • 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 sensor network using a workstation or base station directly connected to a sensor designated as the sink. Aggregate queries over the sensor data are formulated using a simple SQLlike language, then distributed across ...

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  • 2010 IEEE International Conference on Computational ...

    IV. QUERY PROCESSING Models . COUGAR approach [10] proposes a query layer to support aggregate queries. With the interface provided, the clients can issue queries without knowing how the results are generated, processed and returned by the sensor network to them. The query layer processes declarative queries and

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  • Processing approximate aggregate queries in wireless ...

    Processing approximate aggregate queries in wireless sensor networks ... , and innetwork query processing , , , . A survey of the ... and Cougar systems. In , a framework for compensating for packet loss and node failures during query evaluation is proposed.

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

    The intersection partial ag find efficient routes that minimize the communication cost gregate is thus merged immediately with the other two query of executing multiple aggregate queries, by studying the in subaggregates and, eventually, only two partial results are terplay between the processing and routing aspects of query sent to the gateway.

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  • CiteSeerX — Data Aggregation and Query Processing in WSN

    data aggregation query processing system constraint attractive research topic nowa day wireless sensor network various aggregation query sensor node comprehensive approach max aggregate function application design objective wide range remote environment monitoring wireless interface aggregation operation important application aggregate function

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  • Machine Learning in Wireless Sensor Networks: Algorithms ...

    routing, localization, clustering, data aggregation, query processing and medium access control. Here, an issue is functional if it is essential to the basic operation of the wireless sensor network. • Section IV investigates machine learning solutions in WSNs for fulfilling nonfunctional requirements,

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  • TinyDB: An Acquisitional Query Processing System for ...

    strive to process that data as energyefficiently as possible. Typical strategies include minimizing expensive communication by applying aggregation and filtering operations inside the sensor network – strategies that are similar to pushdown techniques from distributed query processing that emphasize moving queries to data.

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

    Query Processing in Sensor Networks From the database perspective, in{network 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 the aggregation phase. For example consider a

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  • Robust Aggregation in Sensor Networks

    Innetwork Aggregate Query Processing: A simple approach to evaluate an aggregation query is to reliably route all sensed values to the base station and compute the aggregate there. Although this approach is simple, the number of messages and the power consumption can be large. A better approach is to leverage the computational

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  • an aggregate query processing system for wireless network

    an aggregate query processing system for wireless network. EnergyEfficient Aggregate Query Evaluation in Wireless Sensor ... aggregate query evaluation problem in wireless sensor networks with an ... systems. These new sensors are differentiated from the traditional wireless devices in that ... complexity of data processing and the size of ...

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  • Data aggregation in wireless sensor network , 11751 d5811

    Dec 25, 2012· Innetwork aggregation is the Global process of gathering and routing information through a multihop network, processing data at intermediate nodes with the objective of reducing resource consumption (in particular energy), thereby increasing network lifetime. There are two approaches for innetwork aggregation: with size reduction and without ...

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  • CiteSeerX — TinyCasper: A PrivacyPreserving Aggregate ...

    This demo presents a privacypreserving aggregate location monitoring system, namely, TinyCasper, in which we can monitor moving objects in wireless sensor networks while preserving their location privacy. TinyCasper consists of two main modules, innetwork location anonymization and aggregate query processing over anonymized locations.

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  • Lowlatency Estimates for WindowAggregate Queries over ...

    sults for a windowaggregate query over a data stream cannot be obtained with guarantees about the results’ accuracy. In this thesis, I propose a technique, which I term prodding, to obtain early result estimates for windowaggregate queries over data streams. The early estimates are obtained in addition to the regular query results.

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  • Supporting Spatial Aggregation in Sensor Network …

    Supporting Spatial Aggregation in Sensor Network ... as a part of TinyDB 1 which is a query processing system for a network of Berkeley motes. The service employs a SQL interface to the sensor data streams. It presents innetwork processing of the aggregation queries on the data generated in the sensor network. We use the adhoc query

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  • TinyCasper: A PrivacyPreserving Aggregate Location ...

    This demo presents a privacypreserving aggregate location monitoring system, namely, TinyCasper,inwhichwecan monitor moving objects in wireless sensor networks while preserving their location privacy. TinyCasper consists of two main modules, innetwork location anonymization and aggregate query processing over anonymized

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  • Aggregate Location Monitoring for Wireless Sensor Networks ...

    aggregate query processor that has the ability to answer aggregate query Q that asks about the number of objects in a certain area ∈ Wireless sensor network. In our system, we consider stationary wireless sensor nodes. Each sensor node has only the capacity to report aggregate locations to a server that contains the aggregate ...

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  • TinyCasper: A PrivacyPreserving Aggregate Location ...

    This demo presents a privacypreserving aggregate location monitoring system, namely, TinyCasper, in which we can monitor moving objects in wireless sensor networks while preserving their location privacy. TinyCasper consists of two main modules, innetwork location anonymization and aggregate query processing over anonymizedlocations. Inthe

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  • Aggregate Threshold Queries in Sensor Networks

    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. Aggregate threshold queries are of particular importance in a wireless sensor ...

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  • Supporting Spatial Aggregation in Sensor Network Databases

    Supporting Spatial Aggregation in Sensor Network ... as a part of TinyDB 1 which is a query processing system for a network of Berkeley motes. The service employs a SQL interface to the sensor data streams. It presents innetwork processing of the aggregation queries on the data generated in the sensor network. We use the adhoc query

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  • data aggregation in wireless sensor networks free download ...

    In Wireless Sensor Networks(WSNs), combneedle(CN) model has been used for information discovery. CN model uses the pushpull strategy, when the sensor detects specific events, it will periodically push (broadcast) the information throughout the network, when user want to get the information, then a pullbased information query will be exploited.

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  • In Network Aggregation with Grouped Queries in multihop ...

    The language should include stream data processing specific operators. (2) Design and develop an algorithm that supports the innetwork processing of a standing query of the given type. The algorithm should use innetwork aggregation to reduce the number of messages used. At this level the student can get ideas from [3].

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  • Query Processing for Sensor Networks Cornell University

    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

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  • Data Aggregation and Query Processing in WSN IJSER

    Data Aggregation and Query Processing in WSN Ayoni Mukherjee , Sanjit Setua Abstract A wireless sensor network (WSN) has a wide range of important applications such as remote environment monitoring , target tracking etc. This has been enabled by the availability of sensors that are smaller, cheaper and intelligent.

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  • Tinycasper: A privacypreserving aggregate location ...

    This demo presents a privacypreserving aggregate location monitoring system, namely, TinyCasper, in which we can monitor moving objects in wireless sensor networks while preserving their location privacy. TinyCasper consists of two main modules, innetwork location anonymization and aggregate query processing over anonymized locations.

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  • Processing approximate aggregate queries in wireless ...

    Information Systems 31 (2006) 770–792 Processing approximate aggregate queries in wireless sensor networks Antonios Deligiannakisa, Yannis Kotidisb,, Nick Roussopoulosa aUniversity of Maryland, USA bDepartment of Information Systems and Analysis, ATT LabsResearch, Box 971, Florham Park, NI 079320971, USA Received 5 February 2004; received in revised form 1 February 2005; accepted …

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  • Wireless sensor network Wikipedia

    Operating systems for wireless sensor network nodes are typically less complex than generalpurpose operating systems. They more strongly resemble embedded systems, for two reasons. First, wireless sensor networks are typically deployed with a particular application in …

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  • A Dynamic Data Aggregation Scheme for Wireless Sensor ...

    Chatterjea, S Havinga, PJM 2003, A Dynamic Data Aggregation Scheme for Wireless Sensor Networks. in Proceedings of the 14th ProRISC workshop on Circuits, Systems and Signal Processing. pp. , 14th ProRISC Workshop on Circuits, Systems and Signal Processing 2003, Veldhoven, Netherlands, 25/11/03.

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  • Cluster Based Data Aggregation for Wireless Sensor Network

    Cluster Based Data Aggregation for Wireless Sensor Network SARANYA. V1, KALAIVANI. A2 Communication systems Bharathiyar Institute of Engineering for women (kalaichawla) Abstract Data aggregation in wireless sensor networks eliminates redundancy to improve bandwidth utilization and energy efficiency of sensor nodes. One

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  • PrivacyPreserving and Dynamic Spatial Range Aggregation ...

    The existing privacypreserving aggregation query processing methods in sensor networks rely on preestablished network topology and require all nodes in the ... Wireless sensor network Query processing ... Natwichai J., Tong Y. (eds) Database Systems for Advanced Applications. DASFAA 2019. Lecture Notes in Computer Science, vol 11448. ...

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  • Robust Approximate Aggregation in Sensor Data …

    Robust Approximate Aggregation in Sensor Data Management Systems · 5 parents. This process runs continuously and after h steps, where h is the height of the aggregation tree, the aggregate result arrives at the root. In order to conserve energy, sensor nodes sleep as much as possible, whenever the processor and radio are idle.

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  • Exact InNetwork Aggregation with Integrity and …

    1 Exact InNetwork Aggregation with Integrity and Confidentiality Stavros Papadopoulos, Aggelos Kiayias, Dimitris Papadias Abstract— Innetwork aggregationreduces the energy cost of processing aggregate queries (such as SUM, MAX, etc.) in wireless

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