aggregate query processing in peer to peer networks code

Complex Queries in DHT-based Peer-to-Peer Networks

Complex Queries in DHT-based Peer-to-Peer Networks ... Impoverished query languages: P2P networks .... We have noted that relational query processing is .... by code that links to the DHT library on this ma- ... aggregation, and sorting.

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and Schema-Based Peer-to-Peer Systems - Sigmod

tructure, a schema-based P2P network based on RDF and ... been put into refining topologies and query routing func- tionalities of these .... takes over specific responsibilities for peer aggregation, query routing ... routing and indexing code used in super-peers (though in principle .... Distributed Query Processing. Currently...

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Query processing in P2P systems - HAL-Inria

Jan 31, 2007 ... Keywords: P2P systems, query processing, schema mapping, query routing, .... In unstructured P2P networks, the overlay network is created in a .... GAV approach, considerable effort may be necessary to update the mediator code. ...... Many of the popular aggregation functions, e.g. Min, Max, Average, are.

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IEEE 2011 FREE PROJECTS WITH SOURCE CODE - Scribd

2011 05 Efficient Computing of Range Aggregates against Uncertain Location Based ... 2011 31 Network Coding Based Privacy Preservation against Traffic ... 2011 34 A Spatiotemporal Approach for Secure Range Queries in Tiered Sensor Netw orks. 2011 35 Live Streaming with Receiver-based Peer-division Multiplexin.

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A Query Processing Architecture for Sensor Networks

based on the query language, the in-network processing mech- anisms, and the query .... aggregation operator to aggregate data from other sensors. TinyDB maps the ... works on peer-to-peer databases [16], [17] are quite similar to the IrisNet works. .... sensor nodes support limited storage, the code size must be small.

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Top-k Aggregation Queries in Large-Scale Distributed Systems

Jul 11, 2007 ... building-block towards efficient top-k query processing in distributed sys- .... Internet-scale monitoring, to aggregation queries in sensor networks, and to ... Further, KLEE affords the query-initiating peer the flexibility to trade-off ...... correction coding were added and woven into the overlay network itself. For.

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OOI Beng Chin's Publications - National University of Singapore

Code will be released soon. W. Wang, M. .... S. Wu, S. Jiang, B. C. Ooi, K. L. Tan: Distributed Online Aggregation. Int'l Conference on ... S. Wang, B.C.Ooi, A. Tung, L. Xu: Efficient Skyline Query Processing on Peer-to-Peer Networks. 23rd IEEE...

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Efficient Approximate Top-k Query Algorithm Using Cube Index

Exact top-k query processing has attracted much attention recently ... databases [20][21], P2P and sensor networks [18][19], etc. ... this problem, where distributed aggregation queries are processed based on ..... by the pseudo-code in Fig. 2.

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Super-Peer-Based Routing and Clustering Strategies for RDF ...

Super-peer based networks can provide better scalability than broadcast based ... network called Edutella [12] (see for the source code), which ... Processing power is needed to construct the routing indices while network ... routing indices based on various aggregation strategies of content indices).

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Real Datasets for File-sharing Peer-to-Peer Systems - Stanford ...

The fundamental drawback of unstructured peer-to-peer (P2P) networks is the flooding-based query processing protocol that seriously limits their .... objects being more popular), and the aggregate popularity distribution does not follow a Zipf curve. ... networks. Limewire is implemented in Java and the source code is.

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A Database Query Processing Model in Peer-To-Peer Network ...

KEYWORDS: Peer-To-Peer Network, Database Query, Query Processing, Object-Oriented ... with answering large-scale ad hoc analysis queries, aggregation queries, on these databases ... A database query is a piece of code (a query) or.

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OOI Beng Chin's Publications - National University of Singapore

Code will be released soon. W. Wang, M. .... S. Wu, S. Jiang, B. C. Ooi, K. L. Tan: Distributed Online Aggregation. Int'l Conference on ... S. Wang, B.C.Ooi, A. Tung, L. Xu: Efficient Skyline Query Processing on Peer-to-Peer Networks. 23rd IEEE...

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Peer-to-peer - Wikipedia, the free encyclopedia

Peer-to-peer (P2P) computing or networking is a distributed application architecture that ... Peers make a portion of their resources, such as processing power, disk .... a peer wants to find a desired piece of data in the network, the search query ... the decentralized aggregation of nodes provided by unstructured networks.

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IPTPS-04_Ryan_Huebsc.. - Parallel and Distributed Operating ...

including in-network aggregation. Finally, we discuss ... 1 Introduction. PIER (which stands for “Peer-to-Peer Information Ex- ... lational query processing is sufficiently expressive for .... has approximately 11,000 lines of PIER code and 4500.

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Improving Query Processing Performance in Large Distributed ...

query processing to improve query processing performance by allowing more data to be accessed ... A Robust Aggregation in Peer-to-Peer Database Systems. 55 ... B RIPPNET: Efficient Range Indexing in Peer-to-Peer Networks. 75 ..... coding, as done by GChord [114], so that consecutive values differ in only one bit.

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Processing and Optimization of Complex Queries in Schema-Based ...

peers and where both standard query operators and user-defined code can ... or processing power, exploiting the different capabilities in a P2P network ... takes over specific responsibilities for peer aggregation, query routing, and mediation.

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An Efficient Scheme for Query Processing on Peer-to-Peer Networks

The peer-to-peer networking paradigm has emerged as an exciting and popular approach ... An Introduction to Query Processing on Distributed Networks; The Routing Paradigm .... This aggregate bitmask is then passed up to its host. .... the uplinked data may be larger because of the loss of coding/compression efficiency.

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efficient approximate query processing in peer to peer networks

Apr 22, 2013 ... Data Alcott System () ieee projects,ns2 projects,ieee projects 2013,ieee project on networking,ieee project titles...

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First Workshop on Real, Large Distributed Systems — Technical Paper

Nov 23, 2004 ... For this reason, performing aggregation in the network (rather than at the client) ... PIER [7] is a distributed relational query processor built as a P2P ... its core query processing code -- the same ``production'' code -- to run on a...

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Processing and Optimization of Complex Queries in ... - CiteSeerX

peers and where both standard query operators and user-defined code can ... or processing power, exploiting the different capabilities in a P2P network ... takes over specific responsibilities for peer aggregation, query routing, and mediation.

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Survey of Research towards Robust Peer-to-Peer Networks - UMD ...

The pace of research on peer-to-peer (P2P) networking in the last five years warrants a ... P2P has the makings of a disruptive technology - it can aggregate enormous storage and processing resources while minimizing entry and scaling costs. ... We canvass the early work to optimize various types of queries over P2P.

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Full publication list

Users query the server for the most similar data objects to a query example. ... privacy while enabling efficient and accurate processing of similarity queries. .... The data transformation based on Gray code sorting performs best in terms of both .... Cycle Minimization Protocol for Peer-to-Peer Networks IEEE Transactions on...

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Benchmarking In-Network Sensor Query Processing - Department of ...

In-network sensor query processing systems are used for power-efficient .... (selection, projection, and aggregation) code. Once a .... instrumented TinyOS code to measure the power ..... Second, the authors considered a peer-to-peer network.

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Sideways Information Passing for Push-Style Query Processing

Peer-to-peer and network query en- gines [15], [22] ... complex queries with aggregation, many-way joins, and nested subqueries. ... code sideways information passing within the query plan. .... the amount of state in the aggregation operators.

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Top-K Aggregation Queries in Large-Scale Distributed Systems∗

Abstract: Distributed top-k query processing has become an essential ... ring, to aggregation queries in sensor networks, and to peer-to-peer Web searching. Inter- ..... Bloom, B. H.: Space/time trade-offs in hash coding with allowable errors.

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Approximating Aggregation Queries in Peer-to-Peer Networks

Approximating Aggregation Queries in Peer-to-Peer Networks. Benjamin .... processing (AQP) techniques for aggregation queries in ..... The pseudo code of the.

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Norvald H. Ryeng Improving Query Processing Performance in ...

2.5 Distributed Data Storage and Query Processing Systems . . . . . . . 22 ... A Robust Aggregation in Peer-to-Peer Database Systems. 55 ... CONTENTS. B RIPPNET: Efficient Range Indexing in Peer-to-Peer Networks. 75 ..... coding, as done by GChord [114], so that consecutive values differ in only one bit. This bit change is...

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Efficient Query Evaluation on Large Textual Collections in a Peer-to ...

of top- query processing in P2P systems, i.e., the prob- lem of retrieving the .... Bloom Filters have been widely used in network appli- cations [4]. ... either arithmetic or Golomb coding. Top- Pruning Algorithm: ..... Optimal aggregation algorithms.

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Distributed RDF Query Processing and Reasoning in Peer-to-Peer ...

Distributed RDF Query Processing and Reasoning in Peer-to-Peer Networks. Zoi Kaoudi ... Subsequently, we propose a query processing algorithm adapted to use a query graph model to ...... tributed, P2P systems enable the aggregation and integration of these data sources ..... name, postal code and city. Then, we can...

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DHT-Based Adapative Query Processing via FedeRated Eddies

ized Eddy operator for use in a P2P query process- ing system. ... may send the tuple to another node in the network). Through the ... Adaptive query processing for centralized systems has been ..... are debugging the FREddy code and determining the overhead of the .... ber of DHT puts executed, the total aggregate net-.

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Distributed Queries and Query Optimization in Schema-Based P2P ...

with a distributed schema which directs query processing tasks from one ... edge can be used to distribute abstract query plans through the P2P network and ... called super-peers, takes over specific responsibilities for peer aggregation, query ..... networks, where both standard query operators and user-defined code can be...

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Survey of research towards robust peer-to-peer networks

P2P has the makings of a disruptive technology--it can aggregate enormous storage and ..... for complex query processing over structured peer-to-peer data networks, ..... codes and big downloads, in: Second Int'l Workshop on Peer-to-Peer...

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Aggregation Query Processing in P2P Networks - SERSC

International Journal of Database Theory and Application. Vol. 5, No. 3, September, 2012. 55. Aggregation Query Processing in P2P Networks. Ratnmala...

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Benjamin Arai | LinkedIn

My research topics include peer-to-peer networks, distributed databases, aggregation ... Modeled attribution of query growth from engagement and user increases/decreases ..... Efficient Ad-hoc Approximate Query Processing in Peer-to-Peer Databases ... Data storage and aggregation techniques in sensor networks...

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Query Processing In Peer To Peer Network Project Source Code ...

Apr 8, 2012 ... Query Processing In Peer To Peer Network Project Source Code ... average, minimum and maximum count and aggregate in query processing.

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Approximate Aggregation Techniques for Sensor Databases

proximate in-network aggregation using small sketches. ... tention paid to efficient query processing for aggregate queries [15, 20, 23]. ..... The pseudo-code for this approach is shown in Al- gorithm 2 ..... of a given file in a peer-to-peer network.

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PIER: Internet Scale P2P Query Processing with Distributed Hash ...

PIER: Internet Scale P2P Query Processing with Distributed Hash Tables by. Ryan Jay ... As a result, they have modest targets for network scalability ... specific focus on aggregation and join operations), and finally examine an optimization problem with multiple ..... In PIER, this logic resides largely within the DHT code.

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