Aggregate Query Processing In Peer To Peer Abstract

[Show full abstract] peer-to-peer databases. In this paper we present novel sampling-based techniques for approximate answering of ad-hoc aggregation queries in such …

Abstract Peer-to-peer databases are becoming prevalent on the Internet for distribution and sharing of documents, applications, and other digital media. The problem of answering large scale, ad-hoc analysis queries – e.g., aggregation queries – on these databases poses unique challenges. Exact solutions can be time consuming and

Aggregate Queries in Peer-to-Peer OLAP Mauricio Minuto Espil Pontificia Universidad Catolica Argentina [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 ...

Volatility-aware query processing in peer-to-peer systems . 2010. Skip Abstract Section. Abstract. Peer-to-Peer (P2P) paradigm has been recognized as a disruptive technology that can aggregate enormous storage and processing resources for information sharing and distributed computing. This paradigm has received significant attention in both ...

ABSTRACT This paper characterizes the query behavior of peers in a peer-to-peer (P2P) file sharing system. In contrast to previous work, which provides various aggregate workload statistics, we characterize peer behavior in a form that can be used for constructing representative synthetic workloads for evaluating new P2P system designs. In

Abstract: 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.

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 acquaintances of the local peer.

Two-Tier Architecture of Digest answer continuous aggregate queries. In addition to the query evaluation engine, Digest benefits from a sampling operator at the bottom tier that (in collaboration ...

Efficient Approximate Query Processing in Peer-to-Peer Networks. Vana Kalogeraki. 2007, IEEE Transactions on Knowledge and Data Engineering. See full PDF download Download PDF. Related papers. Approximating Aggregation Queries in Peer-to-Peer Networks.

CONTINUOUS QUERY PROCESSING FOR MOBILE USERS, 1. ABSTRACT To overcome the lot ... 3. Aggregate Rules 4. Report Peer Lister:- ... approximate query processing here.

This paper presents an extensive evaluation of database query processing model in peer-to-peer networks using top-k query processing technique and implemented by Java,and MySql. View Show abstract

The pace of research on peer-to-peer (P2P) networking in the last five years warrants a critical survey. P2P has the makings of a disruptive technology—it can aggregate enormous storage and processing resources while minimizing entry and scaling costs. Failures are common amongst massive numbers of distributed peers, though the impact of individual …

Abstract. 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. ... Database query processing and ...

Abstract —Peer-to-peer (P2P) databases are becoming prevalent on the Internet for distribution and sharing of documents, applications, and other digital media.

In this paper, we use an I/O-efficient technique based up on a multi resolution wavelet decomposition that yields excellent approximations for range aggregate queries with …

Peer-to-peer (P2P) network is increasingly becoming popular because it offers oppor¬tunities for realtime communication, ad-hoc collaboration and information sharing in a large-scale distributed environment. Peer-to-peer computing is defined as the

sbm abstract for aggregate query processing in peer to peerDesigning a Super Peer Network 2002 12 4 · Designing a Super Peer Network Beverly Yang Hector Garcia Molina f byang,hector g @cs.stanford.edu Computer Science Department,Stanford University Abstract A super peeris a node in a ...

ABSTRACT Peer-to-peer (P2P) databases are becoming prevalent on the Internet for distribution and sharing of documents, applications, and other digital media. The problem of answering …

Alternatively, it can set the expiration time in each chunks it computes. Bellow, we will discuss two query processing policies, an eager and a lazy one, which differ on the amount of effort they put on constructing the execution plan. 4.2.1 …

Range semantics is a form of certain answers semantics for aggregate queries and it guarantees that, in every possible world, the value of the aggregate query will be in a given interval. Ref. [3] adopts range semantics and studies the complexity of algorithms for answering aggregate queries in peer data exchange settings.

Skyline query has been gaining much interest in database research communities in recent years. Most existing studies focus mainly on centralized systems, and resolving the problem in a distributed environment such as a peer-to-peer (P2P) network is still an emerging topic. The desiderata of efficient skyline querying in P2P environment include: 1) progressive returning of …

Abstract. Peer to peer databases are becoming prevalent on the Internet for distribution and sharing of documents, applications, and other digital media. ... Approximate query processing; aggregate query processing; computer networks; distributed database query processing; ... Range of Query Processing in Peer to Peer Networks. In: Zhang, T ...

In this paper, we propose PACA, a probably approximately correct aggregate query processing scheme, for answering aggregate queries in structured Peer-to-Peer (P2P) …

Abstract. Peer-to-peer (P2P) databases are becoming prevalent on the Internet for distribution and sharing of documents, applications, and other digital media. ... M.M. Espil and A.A. Vaisman, "Aggregate Queries in Peer-to-Peer OLAP," Proc. Seventh ACM Int'l Workshop Data Warehousing and On-Line Analytical Processing (DOLAP '04), 2004 ...

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. The concurrent execution of

In this paper, we describe an approximate query processing technique that dynamically constructs an appropriately biased sample for each query by combining samples …

Efficient approximate query processing in peer-to-peer networks. harry mec. 2007, IEEE Transactions on Knowledge and Data Engineering. See full PDF download Download PDF. Related papers. Approximating Aggregation Queries in Peer-to-Peer Networks.

It forms a peer-to-peer ... to in-network query Processing in ... Go to Product Center. Skyline-based Peer-to-Peer top-k Query Processing, Skyline-based Peer-to-Peer top-k Query Processing ... Abstract—Due to applications and systems such as ... Processing step. Then, super-Peers aggregate theK-skyband. Go to Product Center

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