In this paper, we outline our efficient sample- based approach to answer fixed-precision approximate continuous aggregate queries in peer-to-peer databases. We describe our approach in the context of Digest, a two-tier system we have developed for correct and efficient query answering by sampling. With Digest, at the top tier we develop a query evaluation engine that uses the samples collected ...
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First, we add a query processing layer to perform innetwork data aggregation over peer caches. Second, we introduce the concept of Query-Trails: a cache listing recent data requestors.
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database query processing with recent peer-to-peer network-ing technologies, and we provide a detailed performance study demonstrating the need for and feasibility of our de-sign. Finally, we describe how our architecture and tradeoffs raise a number of new research questions, both architectural and algorithmic, that are ripe for further ...
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Abstract For Aggregate Query Processing In Peer To Peer. A Peer-to-Peer Collaboration Framework for Multi-sensor Data Fusion Panho Lee, Anura P. Jayasumana, Sanghun Lim, V. Chandrasekar leepanho, anura, shlim, chandraengr.colostate.edu Department of Electrical and Computer Engineering, Colorado State University, Fort Collins CO 80523 USA Abstract-A peer-to-peer collaboration …
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Abstract Peer-to-peer systems have emerged as a popular way to share huge volumes of data. The usability of these systems ... ditionally offer support for richer queries than just identifier lookups, such as keyword search with regular expressions. ... Average Aggregate Processing Cost
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CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Peer-to-peer (P2P) network is increasingly becoming popular because it offers oppor¬tunities for real-time communication, ad-hoc collaboration and information sharing in a large-scale distributed environment. Peer-to-peer computing is defined as the sharing of computer resources and information through direct ...
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Jan 06, 2021· However, with peer-to-peer data streaming and processing using the LabVIEW FPGA Module, you can create a frequency-domain trigger. In the application depicted in Figure 2, the PXIe-5663 vector signal analyzer uses peer-to-peer streaming to send data to the FlexRIO FPGA module, where it is windowed, converted to the frequency domain, and then ...
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aggregate query processing in peer to peer networks . Approximate Aggregations in Structured P2P Networks ,Abstract: In corporate networks, daily business data are generated in gigabytes or even terabyt It is costly to process aggregate queries in those systems In this paper, we propose PACA, a probably approximately correct aggregate query ...
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Abstract. A peer-to-peer (P2P) data management system consists essentially of a network of peer systems, each maintaining full autonomy over its own data resources. Data exchange between peers occurs when one of them, in the role of a local peer, needs data available in other nodes, denoted the acquaintances of the local peer.
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Mar 27, 2012· Managing multidimensional historical aggregate data in unstructured p2p networks project explains about implementing Peer to a peer-based framework which will support multidimensional historical data.. This project mainly concentrates on two factors firstly combining the amenities of peer to peer network and compressing of data.
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Mar 30, 2007· Abstract: Peer-to-peer file-sharing systems suffer from the over-specification of query results due to the fact that queries are conjunctive and the descriptions of shared files are sparse. Ultimately, longer queries, which should yield more accurate results, actually do the opposite. The judicious masking of query terms circumvents the shortcomings of conjunctive query processing ...
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Abstract. Sharing musical files via the Internet was the essential motivation of early P2P systems. Despite of the great success of the P2P file sharing systems, these systems support only "simple" queries. The focus in such systems is how to carry out an efficient query routing in order to find the nodes storing a desired file.
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In this paper, we propose an efficient sample-based approach to answer fixed-precision approximate continuous aggregate queries in peer-to-peer databases.
Get PriceAbstract Computing aggregates over distributed data sets constitutes an interesting class of distributed que-ries. Recent advances in peer-to-peer discovery of data sources and query processing techniques have made such queries feasible and potentially more frequent. The concurrent execution of multiple and
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Mar 11, 2021· Peer-to-Peer Networking and Applications disseminates state-of-the-art research and development results to facilitate effective deployment of P2P networking and applications. The journal brings together and fosters interaction among academic and industrial communities to promote further research that leads to new P2P applications and services.
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Abstract Keyword search is a critical component in most content ... 20% of all Google queries for “Britney Spears” misspell the artist’s name [1]. Efficiently routing a query to a set ... and place a superlinear aggregate load on the network. In contrast, structured peer-to-peer systems [39,41,47,36,29,24] provide an efficient ...
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Aggregate queries in peer-to-peer OLAP. ... ABSTRACT. A peer-to-peer (P2P) data management system consists essentially in a network of peer systems, each maintaining full autonomy over its own data resources. Data exchange between peers occurs when one of them, in the role of a local peer, needs data available in other nodes, denoted the ...
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PROCESSING AGGREGATE QUERIES OVER CONTINUOUS DATA STREAMS 250 Johannes Gehrke Processing Aggregate Queries over Continuous Data Streams Abstract of Presentation Transcript of Presentation BIOSKETCH: Johannes Gehrke is an assistant professor in the Department of Computer Science at Cornell University.
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Keywords : Random Walk, Query Processing Introduction Peer-to-Peer Databases: The peer-to-peer systems mature beyond file sharing applications and network model is quickly becoming the prefert getting deployed in increasingly sophisticated e- medium for file sharing and distributing data over the business and scientific environments ...
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With the increase of data generation in distributed fashions such as peer-to-peer systems and sensor networks, top-k query processing which returns only a small set of data that satisfies many users' preferences, becomes a substantial issue.When data are periodically updated in each epoch e.g., weather information, without any techniques, a naive solution is to aggregate all data and their ...
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Apr 14, 2004· Abstract. In this paper, cell abstract indices are presented to process content-based approximate queries in structured P2P data systems. It can be used to search as few peers as possible but get as many returns satisfying users’ queries as possible on …
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Abstract: With the increasing popularity of the peer-to-peer (P2P) computing paradigm, many general range query schemes for distributed hash table (DHT)-based P2P systems have been proposed. Although those schemes can provide range query capability without modifying the underlying DHTs, they have the query delay depending on both the scale of the system and the size of the query space or …
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With a distributed search algorithm, search queries hopscotch from node to node, just like the “hot potato” method used in IP routing; they do not pass through any centralized server. The Gnutella protocol has been implemented in dozens of peer-to-peer applications.
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The ability to approximately answer aggregation queries accurately and efficiently is of great benefit for decision support and data mining tools. A P2P network consists of numerous peer nodes that share data and resources with other peers on an equal basis. Unlike traditional client-server models, no central coordination exists in a P2P system; thus, there is no central point of failure.
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Oct 02, 2014· Over the last few years we have seen the rise of a new type of databases, known as NoSQL databases, that are challenging the dominance of relational databases. Relational databases have dominated the software industry for a long time providing mechanisms to store data persistently, concurrency control, transactions, mostly standard interfaces and mechanisms to integrate application …
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Abstract A super-peeris a node in a peer-to-peer network that operates both as a server to a set of clients, and as an equal in a network of super-peers. Super-peer networks strike a balance between the inherent efficiency of centralized search, and the autonomy, load balancing and robustness to attacks provided by distributed search.
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Jan 01, 2013· Procedia Computer Science 19 ( 2013 ) 356 – 363 1877-0509 2013 The Authors. Published by Elsevier B.V. Selection and peer-review under responsibility of Elhadi M. Shakshuki doi: 10.1016/j.procs.2013.06.049 The 4th International Conference on Ambient Systems, Networks and Technologies (ANT 2013) RobP2P: A Robust Architecture for Resource Sharing in Mobile Peer-to-Peer …
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Feb 14, 2018· When the peer with requested file is found (referred to as query hit), the query flooding stops and it sends back the file name and file size to the client, thus following the reverse path. If there are multiple query hits, the client selects from one of these peers. Gnutella was the first decentralized peer to peer network.
Get PriceFixed-Precision Approximate Continuous Aggregate Queries in Peer-to-Peer Databases Farnoush Banaei-Kashani Cyrus Shahabi Computer Science Department Computer Science Department University of Southern California University of Southern California Los Angeles, CA 90089 Los Angeles, CA 90089 Email: [email protected] Email: [email protected] Abstract—In this paper, we propose an efficient …
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Aggregate Queries in Peer-to-Peer OLAP Mauricio Minuto Espil Pontificia Universidad Catolica Argentina mmin[email protected] Alejandro A. Vaisman Universidad de Buenos Aires [email protected] ABSTRACT A peer-to-peer (P2P) data management system consists es-sentially of a network of peer systems, each maintaining full autonomy over its own data ...
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