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Peer-to-Peer Query Processing over Multidimensional Data

Part of the SpringerBriefs in Computer Science Book Series

DOI: 10.1007/978-1-4614-2110-8

ISBN: 978-1-4614-2109-2

Publisher: Springer New York - Springer Journals

Mar 29, 2012

Available

Introduction

Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil; Kotidis, Yannis

Pages: 1 –3

[During the last decades, the vast number of independent data sources and the high rate of data generation make central assembly of data at one location infeasible. As a consequence, data management and storage become increasingly distributed. Although the client-server architecture as...
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Peer-to-Peer Systems

Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil; Kotidis, Yannis

Pages: 5 –11

[In this chapter, a basic overview is given of P2P systems, architectures, and search strategies in P2P systems. More specific concepts that are outlined include the differences of structured and unstructured P2P systems, categories of P2P systems based on the centralization degree, basic search...
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System Overview

Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil; Kotidis, Yannis

Pages: 13 –22

[Query processing in P2P networks poses inherent challenges and demands non-traditional techniques due to the distribution of content and the lack of global knowledge. Query routing over the P2P network is the key mechanism for efficient query processing. In the case of multidimensional data,...
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Query Operators

Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil; Kotidis, Yannis

Pages: 23 –30

[Emerging applications over distributed, loosely coupled datasets require advanced query processing primitives that go beyond exact match queries. Such applications often need to handle multidimensional data, whether these dimensions are related to specific attributes of the data objects or are...
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Similarity Search in Metric Spaces

Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil; Kotidis, Yannis

Pages: 31 –42

[Similarity search in metric spaces has attracted much attention recently due to numerous applications, including multimedia retrieval and scientific data management. Several centralized indexing methods have been proposed to support efficient similarity search in metric spaces. In this chapter,...
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Subspace Skyline Queries

Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil; Kotidis, Yannis

Pages: 43 –61

[Skyline queries help users make intelligent decisions over complex data, when different and often conflicting criteria are considered. Such queries return a set of data points that are not dominated by any other point on all dimensions. Skyline queries have been studied in centralized systems...
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Top-k queries

Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil; Kotidis, Yannis

Pages: 63 –72

[Recently there has been an increased interest in database management systems to incorporate and support more flexible query operators, such as top-k, that produce results of specified cardinality, thus avoiding huge and overwhelming result sets. Top-k queries retrieve the objects that best match...
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Summary

Vlachou, Akrivi; Doulkeridis, Christos; Nørvåg, Kjetil; Kotidis, Yannis

Pages: 73 –75

[Query processing over multidimensional data in distributed systems is an important and emerging challenge. In this chapter, the most important findings in the book are summarized and future directions are outlined within the area of distributed query processing over multidimensional data.]

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