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In-Network Execution of Monitoring Queries in Sensor Networks, works on query processing in sensor networks have focused on aggregate queries such as COUNT, SUM and MAX, and have developed in-network aggregation techniques that sig-nificantly reduce the amount of data transmission Some approximate query processing techniques [7, 10, 6, 5] were also proposed to, [24/7 Live Chat ] aggregate ...
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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. Due to the low quality sensing devices or random environmental disturbances, sensor …
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Processing Approximate Aggregate Queries In Wireless. Processing Approximate Aggregate Queries In Wireless,Largescale wireless sensor networks Several protocols have been proposed 7 15 24 Clusters are constructed to gather data locally before the data is forwarded to a server for final processing The clusters can form a hierarchical structure In this paper we consider aggregate …
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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 sen- sor network using a workstation or...
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Aggregate query processing in the presence of duplicates in wireless sensor networks. Article in Information Sciences 297 · November 2014 with 43 Reads How we measure 'reads' A 'read' is counted ...
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aggregate query processing in sensor networks. Planta Móvil de Trituradora de Mandíbula. Planta Móvil de Trituradora de Impacto. Planta Móvil de Trituradora de Cono. Planta Móvil de Trituradora de VSI. Material : construcción de carretera e industrias de agregados. Tamaño de salida : los agregados de 5-20mm . Equipo : alimentador vibratorio +trituradora de mandíbulas +planta móvil de ...
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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 Masters of Science in Computer Science and Engineering at …
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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 ...
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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. Nodes of the network form an …
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aggregate quarry processing sensor networks. Counting Targets: Building and Managing Aggregates in ... - Parc. defines a sensor aggregate as those nodes in a network that satisfy a grouping ... collaborative signal processing task in sensor networks counting distinct... Directed diffusion: A scalable and robust communication paradigm ... Large scale, dynamically changing, and robust sensor ...
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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 sen- sor network using a workstation or...
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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 evaluation plan. The proposed optimization algorithms ...
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