Aggregate query processing in the presence of …

Aggregate query processing in the presence of …

Wireless sensor networks (WSNs) have received increasing attention in the past decade. In existing studies for query processing of WSNs, each sensor node measures ...

EAGLE—A Scalable Query Processing Engine for Linked Sensor …

EAGLE—A Scalable Query Processing Engine for Linked Sensor …

sensors Article EAGLE—A Scalable Query Processing Engine for Linked Sensor Data † Hoan Nguyen Mau Quoc 1,*, Martin Serrano 1, Han Mau Nguyen 2, John G. Breslin 3 and Danh Le-Phuoc 4 1 Insight Centre for Data Analytics, National University of Ireland Galway, H91 TK33 Galway, Ireland;

Medians and Beyond: New Aggregation Techniques for Sensor …

Medians and Beyond: New Aggregation Techniques for Sensor …

H.2.4 [Systems]: Distributed databases, Query processing General Terms Algorithms, Performance Keywords Sensor Networks, Aggregation, Approximation Algorithms, Dis-tributed Algorithms ∗The authors were supported by NSF grant IIS-0121562 and Army

Assembling Regions for Efficacious Aggregate Query Processing in …

Assembling Regions for Efficacious Aggregate Query Processing in …

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

Poster Abstract: Routing and Processing Multiple Aggregate Queries in Sensor …

Poster Abstract: Routing and Processing Multiple Aggregate Queries in Sensor …

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

aggregate query processing in wireless sensor network

aggregate query processing in wireless sensor network

Aggregate query processing in the presence of duplicates Mar 10, 2015 A wireless sensor network (WSN) consists of spatially distributed autonomous devices with various sensors, and a powered base station which serves as an access point for users to pose ad hoc queries Wireless sensor networks have a broad range of applications, such as environment and habitat monitoring that collects ...

(PDF) Routing and processing multiple aggregate …

(PDF) Routing and processing multiple aggregate …

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 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-efficient distributed ...

Assembling regions for efficacious aggregate query …

Assembling regions for efficacious aggregate query …

Assembling regions for efficacious aggregate query processing in wireless sensor networks - CORE Reader

aggregate query processing sensor networks

aggregate query processing sensor networks

aggregate query processing in sensor networks Aggregate Query Processing Sensor Networks. Robust Aggregation In Sensor Networks. Robust aggregation in sensor networks george kollios, john byers, jeffrey considine, marios hadjieleftheriou, and feifei li.Faulty ...

Poster Abstract: Routing and Processing Multiple Aggregate Queries in Sensor …

Poster Abstract: Routing and Processing Multiple Aggregate Queries in Sensor …

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

aggregate query processing sensor networks

aggregate query processing sensor networks

aggregate query processing in sensor networks Aggregate Query Processing Sensor Networks. Robust Aggregation In Sensor Networks. Robust aggregation in sensor networks george kollios, john byers, jeffrey considine, marios hadjieleftheriou, and feifei li.Faulty ...

Robust and Efficient Aggregate Query Processing in …

Robust and Efficient Aggregate Query Processing in …

In this paper, we propose COSE, a query-centric framework of collaborative heterogeneous sensor networks, where sensor networks collaborate with each other for effective and efficient processing ...

Robust Approximate Aggregation in Sensor Data Management …

Robust Approximate Aggregation in Sensor Data Management …

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

Effective processing of continuous group-by aggregate …

Effective processing of continuous group-by aggregate …

 · Approximate query processing in sensor networks is very useful due to the property of sensor networks. Therefore, many papers deal with approximate aggregate processing (Considine et al., 2004, Nath et al., 2004, Shrivastava et al., 2004, Deligiannakis et al,,

Query Processing for Sensor Networks

Query Processing for Sensor Networks

Query Processing for Sensor Networks Yong Yao and Johannes Gehrke (Presentation: Anne Denton March 8, 2003)

Assembling regions for efficacious aggregate query …

Assembling regions for efficacious aggregate query …

Assembling regions for efficacious aggregate query processing in wireless sensor networks - CORE Reader

A Privacy-Preserving Location Monitoring System for Wireless Sensor …

A Privacy-Preserving Location Monitoring System for Wireless Sensor …

Index TermsŠLocation privacy, wireless sensor networks, location monitoring system, aggregate query processing, spatial histogram F 1 INTRODUCTION The advance in wireless sensor technologies has resulted in many new applications for military and/or

Query Privacy Preserving for Data Aggregation in Wireless …

Query Privacy Preserving for Data Aggregation in Wireless …

Wireless Sensor Networks (WSNs) are increasingly involved in many applications. However, communication overhead and energy efficiency of sensor nodes are the major concerns in WSNs. In addition, the broadcast communication mode of WSNs makes the network vulnerable to privacy disclosure when the sensor nodes are subject to malicious behaviours. Based on the …

Aggregate Location Monitoring for Wireless Sensor Networks: …

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.

Effective processing of continuous group-by aggregate …

Effective processing of continuous group-by aggregate …

 · Approximate query processing in sensor networks is very useful due to the property of sensor networks. Therefore, many papers deal with approximate aggregate processing (Considine et al., 2004, Nath et al., 2004, Shrivastava et al., 2004, Deligiannakis et al,,

TinyCasper: A Privacy-Preserving Aggregate Location Monitoring …

TinyCasper: A Privacy-Preserving Aggregate Location Monitoring …

aggregate query processing over anonymized locations the first module, trusted wireless sensor nodes collaborate with each other to anonymize users'' exact locations by a cloaked spatial region that satisfies a prespecified privacy require-ment. On the other

Processing Approximate Aggregate Queries in Wireless Sensor …

Processing Approximate Aggregate Queries in Wireless Sensor …

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 number of aggregated messages and minimize the amount of the transmitted data.

TinyDB: An Acquisitional Query Processing System for Sensor …

TinyDB: An Acquisitional Query Processing System for Sensor …

Acquisitional Query Processing In Sensor Networks • 125 Section 6 discusses our adaptive, power-sensitive model for query execution and result collection. 2. SENSOR NETWORK OVERVIEW We begin with an overview of some recent sensor network

Aggregate query processing in the presence of duplicates …

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.

Interplay of processing and routing in aggregate query optimization for sensor networks

Interplay of processing and routing in aggregate query optimization for sensor networks

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

TinyDB: An Acquisitional Query Processing System for Sensor …

TinyDB: An Acquisitional Query Processing System for Sensor …

Acquisitional Query Processing In Sensor Networks · 3 are submitted at a powered PC (the basestation), parsed, optimized and sent into the sensor network, where they are disseminated and processed, with results flowing back up the routing tree that was formed

Medians and Beyond: New Aggregation Techniques for Sensor Networks …

Medians and Beyond: New Aggregation Techniques for Sensor Networks …

H.2.4 [Systems]: Distributed databases, Query processing General Terms Algorithms, Performance Keywords Sensor Networks, Aggregation, Approximation Algorithms, Dis-tributed Algorithms ∗The authors were supported by NSF grant IIS-0121562 and Army

TinyDB: An Acquisitional Query Processing System for Sensor …

TinyDB: An Acquisitional Query Processing System for Sensor …

Acquisitional Query Processing In Sensor Networks · 3 are submitted at a powered PC (the basestation), parsed, optimized and sent into the sensor network, where they are disseminated and processed, with results flowing back up the routing tree that was formed

aggregate query processing in sensor networks

aggregate query processing in sensor networks

Aggregate Query Processing Sensor Networks. Robust Aggregation In Sensor Networks. Robust aggregation in sensor networks george kollios, john byers, jeffrey considine, marios hadjieleftheriou, and feifei li.Faulty sensor networks.Guaranteeing exact solutions in the face of losses is generally impractical, so we focus -network aggregate query

Aggregate query processing in the presence of …

Aggregate query processing in the presence of …

Wireless sensor networks (WSNs) have received increasing attention in the past decade. In existing studies for query processing of WSNs, each sensor node measures ...

Poster Abstract: Energy›Efcient Data Organization and Query Processing in Sensor …

Poster Abstract: Energy›Efcient Data Organization and Query Processing in Sensor …

Poster Abstract: Energy›Efcient Data Organization and Query Processing in Sensor Networks Ramakrishna Gummadi Xin Li Ramesh Govindan Cyrus Shahabi Wei Hong [email protected] [email protected] [email protected] [email protected] [email protected]

Wavelet-Based Least Common Ancestor Algorithm for …

Wavelet-Based Least Common Ancestor Algorithm for …

Wireless sensor network (WSN) is developed as a network of sensors, which engage in sensing and transmitting the data to the sink node. The constraints, such as energy, memory, and bandwidth insist the researchers to develop an efficient method for data transmission in WSN. Accordingly, this paper introduces a data aggregation mechanism based on query processing, Wavelet-based Least …

Interplay of Processing and Routing in Aggregate Query …

Interplay of Processing and Routing in Aggregate Query …

 · 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.

Robust and Efficient Aggregate Query Processing in …

Robust and Efficient Aggregate Query Processing in …

In this paper, we propose COSE, a query-centric framework of collaborative heterogeneous sensor networks, where sensor networks collaborate with each other for effective and efficient processing ...

Aggregate Threshold Queries in Sensor Networks

Aggregate Threshold Queries in Sensor Networks

Aggregate threshold queries are of particular importance in a wireless sensor environment, since they allow network-wide events to be detected, with a minimum expenditure of energy. Such network-wide events might include, for example, the variance in sensor readings exceeding a certain threshold.

Processing Approximate Aggregate Queries in Wireless Sensor …

Processing Approximate Aggregate Queries in Wireless Sensor …

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]

TinyDB: An Acquisitional Query Processing System for Sensor …

TinyDB: An Acquisitional Query Processing System for Sensor …

Acquisitional Query Processing In Sensor Networks • 125 Section 6 discusses our adaptive, power-sensitive model for query execution and result collection. 2. SENSOR NETWORK OVERVIEW We begin with an overview of some recent sensor network

Effective processing of continuous group-by aggregate …

Effective processing of continuous group-by aggregate …

 · Approximate query processing in sensor networks is very useful due to the property of sensor networks. Therefore, many papers deal with approximate aggregate processing (Considine et al., 2004, Nath et al., 2004, Shrivastava et al., 2004, Deligiannakis et al,,

Medians and Beyond: New Aggregation Techniques for Sensor Networks …

Medians and Beyond: New Aggregation Techniques for Sensor Networks …

H.2.4 [Systems]: Distributed databases, Query processing General Terms Algorithms, Performance Keywords Sensor Networks, Aggregation, Approximation Algorithms, Dis-tributed Algorithms ∗The authors were supported by NSF grant IIS-0121562 and Army

Aggregate Query Processing In Sensor Networks

Aggregate Query Processing In Sensor Networks

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 ...