Aggregate Query Processing In Peer To Peer Abstract

Aggregate Query Processing In Peer To Peer Abstract

Leopard A Locality Aware Peer to Peer System with No Hot Spot

Keywords peer to peer lookup service virtual coordinates locality awareness 1 Introduction A fundamental challenge in Peer To Peer P2P systems is how to locate objects of interest in the network namely the look up service A key break through to wards a scalable and distributed solution of the lookup problem is the distributed

SDAMQ Secure Data Aggregation for Multiple Queries in Wireless Sensor

We propose Secure Data Aggregation for Multiple Queries SDAMQ in Wireless Sensor Networks where multiple aggregate queries from the sink are authenticated and distributed to the sensor nodes The sensor nodes respond by aggregating data belonging to multiple coexisting queries into a single packet there by reducing the transmission cost

Peer to peer networks and client server networks OmniSecu

A peer to peer network has no dedicated servers In a peer to peer network a number of workstations or clients are connected together for sharing devices information or data All the workstations clients are considered equal Any one computer can act as client or server at any instance This network is ideal for small networks where there

CiteSeerX — et al Pennsylvania State University

CiteSeerX Document Details Isaac Councill Lee Giles Pradeep Teregowda Abstract Computing aggregates over distributed data sets constitutes an interesting class of distributed queries Recent advances in peer to peer discovery of data sources and query processing techniques have made such queries feasible and potentially more frequent

Bandwidth Efficient Continuous Query Processing over DHTs

Abstract In this paper we propose novel techniques to reduce bandwidth cost in a continuous keyword query processing system that is based on a distributed hash table We ar gue that query indexing and document announcement are of signiﬁcant importance towards this goal Our detailed simulations show that our proposed techniques combined

Abstract Approximating Aggregation Queries in Peer to Peer Networks

Once a peer is visited by the algorithm the peer can be instructed to simply execute the original query on its local data and send only the aggregate and its degree back to the sink from which the sink can reconstruct the overall answer

A Class based Piece Selection for Multi Dimensional Aggregated Data

ABSTRACT A peer to peer P2P is a distributed application architecture where each computer node in the net acts as a client/ server for the other nodes in the network It allows sharing right to different sources and partitions tasks or workloads among peers All the peers are equally privileged participants in the application

PIER Internet Scale P2P Query Processing with Distributed Hash Tables

Abstract PIER Internet Scale P2P Query Processing with Distributed Hash Tables by Ryan Jay Huebsch Doctor of Philosophy in Computer Science University of California Berkeley Professor Joseph M Hellerstein Chair Distributed database systems have long been a topic of interest in the database research community Existing

D4V a peer to peer architecture for data dissemination in smartphone

D4V relies on a Peer to Peer P2P overlay scheme denoted as Distributed Geographic Table DGT which unifies the concepts of physical and virtual neighborhoods in a scalable and robust infrastructure for application level services First we investigate the discovery procedure of the DGT overlay network through analytical and simulation

Multiresolution Cube Estimators for Sensor Network Aggregate Queries

It is shown that query plans over cube summaries can be computed in polynomial time and a PTIME algorithm is presented that selects the minimum number of data requests that can compute the answer to a spatial query In this work we present in network techniques to improve the efficiency of spatial aggregate queries Such queries are very common in a sensornet setting demanding more targeted

E cient Range and Join Query Processing in Massively Distributed Peer

Abstract Peer to peer P2P has become a modern distributed computing architecture that supports massively large of massively distributed large scale peer to peer P2P query processing Many research papers was originally created to support aggregate query but by deploying range based indexes it can be used to support range query

In Network Time Series Data Compression for Electric Internet of Things

Abstract The IoT is considered as one of the most important supporting technologies of the smart grid and the smart grid is considered as one of the most important application areas of the IoT However the electric IoT has vast amount and many kinds of sensors very high data acquisition frequency and a highly heterogeneous network which

A Sample and Clean framework for fast and accurate query processing on

abstract = In emerging Big Data scenarios obtaining timely highquality answers to aggregate queries is difficult due to the challenges of processing and cleaning large dirty data sets To increase the speed of query processing there has been a resurgence of interest in sampling based approximate query processing SAQP

Real Datasets for File sharing Peer to Peer Systems

Abstract The fundamental drawback of unstructured peer to peer P2P networks is the °ooding based query processing protocol that seriously limits their scalability As a result a signiﬂcant amount of research work has focused on designing e cient search protocols that reduce the overall communication cost

Developing Trust in Large Scale Peer to Peer Systems

processes waste much bandwidth and processing power since each peer queries all of its neighbors Our approach applies a process of referrals through which peers help one another ﬁnd witnesses [12 25] The process of referrals re quires that any referrals e g the names and addresses of other peers are sent back to the requesting peer

SenQ An Embedded Query System for Streaming Data in Heterogeneous

Queries are uniquely identiﬁed in the network by tu ples to allow multiple concurrent queries on sinks and sources—a requirement for the interactive peer to peer traﬃc ﬂows in IWSNs The 4KB of data memory on the MicaZ mote limits SenQ to 21 concurrent queries on each sensor

NSF Award Search Award # 0811998 III COR Small Towards Ubiquitous

abstract Location based continuous queries are the backbone for monitoring alerting and notification location based services The current technologies and software infrastructure behind existing location based continuous queries are not designed to handle their formidable rise in usage nor to maintain the location privacy of their users

CiteSeerX — Citation Query Charlotte Metacomputing on the Web

Abstract MapReduce is a programming model and an associated implementation for processing and generating large data sets Programs written in this functional style are automatically parallelized and executed on a large cluster of commodity machines Abstract MapReduce is a programming model and an associated implementation for processing

PDF Evaluation of top k queries in peer to peer networks using

In p2p networks top k query processing can provide a lot of advantages both in time and bandwidth consumption Several algorithms have been proposed for the evaluation of top k queries

Query Processing With Guarantees in Query centric Networks

Abstract Massive scale self administered networks like peer to peer and sensor networks have data distributed across thousands of participant hosts End users derive bene t by querying data in these networks in various ways e g keyword searches aggregate queries and select project joins

Content Centric Peer Data Sharing in Pervasive Edge Computing Environments

metadata The retrieval of them follows similar query response mechanisms to be presented in Section III and IV III PEER DATA DISCOVERY PDD Peer Data Sharing PDS consists of two components Peer Data Discovery PDD and Peer Data Retrieval PDR They share similar message formats processing procedures and routing mechanism

Recursive Computation of Regions and Connectivity in Networks

declarative queries — and in some cases to compute and incrementally maintain the results of these queries e g in the form of a routing table an activity log or a status display The queries that are of interest in this domain are frequently quite different from the OLAP or OLTP queries that exemplify centralized DBMS query processing

nTorrent Peer to Peer File Sharing in Named Data Networking

Centric Networking ICN BitTorrent Peer to Peer File Sharing I INTRODUCTION BitTorrent [1] is a popular peer to peer ﬁle sharing applica tion in today s Internet The shared ﬁles are split into named blocks each identiﬁed by its sequence number in the torrent Any peer can request a data block from any other peers of the

Accuracy of Aggregation in Peer to Peer DBMSs NTNU

The typical method for doing aggregation in peer to peer systems is using a reduction tree All nodes aggregate over their local data and merge the local partial aggregate with the partial aggregates of all their children In this way the result of the aggregation operation propagates up the tree resulting in the complete result at the root node

Koloniari Georgia University of Macedonia UoM

Management of Temporal Information in Social Networks Data Management in Peer to Peer Systems Distributed Processing of XML Documents

Safe Regions for Moving Reverse Neighbourhood Queries in a Peer to Peer

the query is retained within the SR Monte Carlo simulation was performed to calculate the area of the SR by weighing in shape irregularity Experimental results demonstrate the effectiveness and ef˝ciency of our approach INDEX TERMS Moving query query processing reverse nearest neighbourhood safe region I INTRODUCTION

An Introduction to Peer to Peer Networks University of Toronto

P2P Benefits n Efficient use of resources n Unused bandwidth storage processing power at the edge of the n etwork n Scalability n Consumers of resources also donate resources n Aggregate resources grow naturally with utilization n Reliability n Replicas n Geographic distribution n No single point of failure n Ease of administration n Nodes self organize n No need to deploy servers to satisfy

Maintaining Recursive Views of Regions and Connectivity in Networks

Abstract The data management community has recently begun to consider declarative network routing and distributed acquisition e g sensor networks that execute queries about contiguous regions declarative networks that maintain shortest paths and distributed and peer to peer stream systems that detect

A Keyword Set Search System for Peer to Peer Networks Omprakash D Gnawali

Abstract The Keyword Set Search System KSS is a Peer to Peer P2P keyword search sys tem that uses a distributed inverted index The main challenge in a distributed index and search system is finding the right scheme to partition the index across the nodes in the network The most obvious scheme would be to partition the index by keyword

Snapshot Density Queries on Location Sensors AAU

ABSTRACT Density queries are of practical importance in many mobility related applications In this paper we employ the location the query source through a wireless ad hoc peer to peer net work From the database point of view the data being col The study of aggregate query processing and mobile ob jects tracking in sensor networks