aggregate query processing sensor networks

TAG A Tiny Aggregation Service for ad

Feb 18, 2015 0183 32 Updates are delivered every 30 seconds This allows end-users to pose declarative queries over sensor networks The primary semantic difference between TAG queries and SQL queries is that the output of a TAG query is a stream of values, rather than a single aggregate value or batched result...

Know More

IJA An Efficient Algorithm for Query Processing in Sensor ,

Jan 28, 2011 0183 32 Sensor nodes are generally highly constrained, in particular regarding their energy and memory resourc While simple queries such as SELECT and AGGREGATE queries in wireless sensor networks have been addressed in the literature, the processing of join queries in sensor networks remain to be investigated...

Know More

Wireless Network with Privacy Protection and Location ,

Index Terms Location privacy, wireless sensor networks, -location monitoring system, aggregate query processing I INTRODUCTION he advance in wireless sensor technologies has resulted in many new applications for military and/or civilian purpos Many cases of these applications rely on the information of...

Know More

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...

Know More

aggregate query processing in peer to peer networks with ,

Aggregate Quarry Processing Sensor Networks This page is about aggregate query processing sensor networks Limestone Quarry Plant aggregate query processing in peer to peer networks with synopsis Click to chat An Introduction to Peer to Peer Streaming...

Know More

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 ,...

Know More

Robust Aggregation in Sensor Networks

on sensor networks has been advocated 24, 29 , with particular attention paid to efficient query processing for aggregation queries 24, 29, 31 In the TAG system 24 , 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 ....

Know More

Aggregate query processing in the presence of duplicates ,

Mar 10, 2015 0183 32 Sliding Window Aggregate Queries A sensor network can be considered as a source of stream data Then, the stream data can be broken into possibly overlapping ,...

Know More

Interplay of Processing and Routing in Aggregate Query ,

The TinyDB 8,9 and Cougar 14,15 projects investigate tree-based routing and scheduling techniques for processing aggregate queries like avg, count, sum, min and max in sensor networks The concept of semantic routing trees SRTs 9 is used to forward queries only to children that satisfy the query predicate...

Know More

Reading List on Wireless Sensor Networks

TinyDB In-Network Query Processing in TinyOS Version 04, September 2003 9 Madden, Robert Szewczyk, Michael J Franklin, and David Culler Supporting Aggregate Queries Over Ad-Hoc Wireless Sensor Networks...

Know More

Supporting Aggregate Queries over Ad

Supporting Aggregate Queries over Ad-Hoc Wireless Sensor Networks 2002 by Madden, Robert Szewczyk, Michael J Franklin, David Culler Venue , The eld of wireless sensor networks particularly focuses on applications involving autonomous use of compute, sensing, and wireless communication devices for both scienti c and commercial ....

Know More

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 base station directly connected to a sensor designated as the sink Aggregate queries over the sensor data are formulated using a sim-ple SQL-like language, then distributed across ....

Know More

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 dcsbbkacuk Abstract We present a novel approach to processing continuous aggregate queries in sensor networks, which lifts the ,...

Know More

Medians and Beyond New Aggregation Techniques for ,

nell University 24 Cougar have developed energy efficient query processing architectures over sensor networks Their approach is based on a couple of observations first, for a user, the individual sensor values do not hold much value For example, in a sensor network spanning thousands of nodes, the user would like to know...

Know More

PDF Aggregate Queries in Wireless Sensor Networks

Wen-Chih Peng 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 ,...

Know More

Query Processing for Sensor Networks

we introduce our model of a sensor network, sensor data, and the class of queries that we consider in this paper We then demonstrate our algorithms to process simple aggregate queries with in-network aggregation Section 3 , and investigate the interaction between the routing layer and the query layer Section 4 We...

Know More

Efficient Aggregation Processing in the Presence of ,

Aggregate Query Processing in WSNs The structure of a WSN considered in this paper is the same as that used in 7 Let us consider a set of stationary sensor nodes The sensor ,...

Know More

aggregate query processing in peer to peer networks with ,

Proof Sketches Veriable In Network AggregationProof Sketches Veriable In Network Aggregation sensor networks, peer to query processing in the face of adversari cess all data and reply to all queri in a peer to peer network with nodes contributed by Scalable Data Processing for Community Sensing Applications 5Scalable Data Processing for ....

Know More

PDF Aggregate Queries in Wireless Sensor Networks

Wen-Chih Peng 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 ....

Know More

Processing Approximate Aggregate Queries in Wireless ,

routing 4, 26 and in-network query processing 14, 15, 16, 28 A survey of the applications and the challenges that sensor networks introduce is presented in 10 For monitoring queries that aggregate the observed values from a group of sensor nodes, 14 suggested the construction of a greedy aggregation tree that seeks to maximize the ....

Know More

Adaptive aggregation tree transformation for energy ,

Home Browse by Title Periodicals International Journal of Sensor Networks Vol 6, No 1 Adaptive aggregation tree transformation for energy-efficient query processing in ,...

Know More

Secure and efficient in

Apr 16, 2011 0183 32 In-network aggregation is a popular methodology adopted in wireless sensor networks, which reduces the energy expenditure in processing aggregate queries such as SUM, MAX, etc over the sensor readings Recently, research has focused on secure in-network aggregation, motivated i by the fact that the sensors are usually deployed in open ,...

Know More

Secure and Efficient In

Aggregate queries eg, SUM, MAX, etc constitute a wide and important query class in sensor networks In the naive case, the querier collects all the raw data from the sensors and performs the aggregation locally Although this may be a vi-able solution in small networks, it leads to an excessive energy expenditure in large-scale networks...

Know More

Processing approximate aggregate queries in wireless ,

Dec 01, 2006 0183 32 Aggregate queries Approximation 1 Introduction Densely distributed sensor networks are used in a variety of monitoring applications ranging from measurements of ,...

Know More

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...

Know More

Sensor Scheduling for Aggregate Monitoring in Wireless ,

Wireless sensor network is characterized by their capa-bility of generating, processing, and communicating data They are being explored in many scientific domains, eg, ecology and oceanography Most of these applications in-volve primarily data collection with in-network processing in which continuous aggregate queries are posed and pro-cessed...

Know More

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 aggre-gate queries in sensor networks, which lifts the assumption of tree ....

Know More

Another Outlier Bites the Dust Computing Meaningful ,

management system for sensor network data processing has been demonstrated by recent research 16 , 24 In particular, the focus has been on aggregate query processing 3 , 6 , 7 , 17 To enable efficient and effective in-network processing of aggregate queries, many techniques for computing energy-...

Know More

TinyCasper A Privacy

niques designed for wireless sensor networks On the other side, the aggregate query processing module is embedded in-side the server to support aggregate query processing ,...

Know More

TinyCasper A Privacy

niques designed for wireless sensor networks On the other side, the aggregate query processing module is embedded in-side the server to support aggregate query processing over anonymized locations TinyCasper system administrators can change the privacy requirement, ie, k-anonymity re-quirement, at anytime Finally, system users can issue snap-...

Know More