Abstract—Peer-to-peer (P2P) databases are becoming prevalent on the Internet for distribution and sharing of documents, applications, and other digital media. The …
Peer-to-peer (P2P) architectures are commonly used for file-sharing applications. The reasons for P2P's popularity in file sharing -- fault tolerance, scalability, and ease of deployment -- also ...
As to this research issue, the work in [8] introduces range semantics as the semantics of aggregate queries in the context of inconsistent databases. 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.
We propose the use of a peer-to-peer (P2P) architecture for addressing the problem of processing OLAP data in a distributed environment, in a way that all companies involved can maintain full ...
Request PDF | Selectivity-based XML query processing in structured peer-to-peer networks | DHT-based structured P2P systems have been proposed to index and retrieve many types of contents ...
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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 large-scale ad hoc analysis queries, for example, aggregation queries, on these databases poses unique challenges. Exact solutions can be time consuming and difficult …
We investigate the problem of processing historical queries on a sensor network. Since data is considered to have been already collected at the sensor nodes, the main issue is exploring the spatial component of the query in order to minimize its cost represented by the energy consumption. We assume queries can be issued at any …
Request PDF | CubeCache: Efficient and Scalable Processing of OLAP Aggregation Queries in a Peer-to-Peer Network | Peer to Peer (P2P) data sharing systems are emerging as a promising ...
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 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. No global schema ...
Abstract Peer-to-peer (P2P) networking continuously gains popularity among,computing science researchers. ... The concurrent execution of multiple and often identical distributed aggregate queries ...
Download Citation | Range of Query Processing in Peer to Peer Networks | Peer to peer databases are becoming prevalent on the Internet for distribution and sharing of documents, applications, and ...
Aggregate Queries in PeertoPeer OLAP CORE A peertopeer (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 ...
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 ...
The problem of answering large scale, ad-hoc analysis queries ― e.g., aggregation queries ― on these databases poses unique challenges. Exact solutions …
Download Citation | Processing of Query in Peer to Peer Networks | DHT based peer to peer network system is a general range of query scheme. These schemes can support the range of query without ...
Request PDF | Processing Queries in a Large Peer-to-Peer System | While current search engines seem to easily handle the size of the data available on the Internet, they cannot provide fresh results.
Inter-business collaborative contexts prefigure a distributed scenario where companies organize and coordinate themselves to develop common and shared opportunities, but traditional business intelligence systems do not provide support to this end. To
We present a model for multidimensional data distributed in a P2P network, and a query rewriting technique, that allows a local peer to propagate OLAP queries …
network, nodes spend processing resources (i.e., cycles) to forward the query, process it, etc, and bandwidth to send and receive messages. The main cost of queries are there-fore bandwidth and processing. Since the cost of a query is not incurred at any single node in the network, it makes sense to discuss costs in aggregate (i.e., overall the ...
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When the peer is processing a query that was formulated on some other peer p, the data handler just collects local query results from the OLAP adapter and returns them to p. 4. OLAP adapter. This component adapts queries received from the query handler to the querying interface exposed by the local multidimensional engine. 5. …
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.
A model for multidimensional data distributed in a P2P network, and a query rewriting technique, that allows a local peer to propagate OLAP queries among its acquaintances, obtaining a meaningful and correct answer. A peer-to-peer (P2P) data management system consists essentially in a network of peer systems, each maintaining full …
Abstract. The ability to approximately answer aggregation queries accurately and efficiently is of great benefit for decision support and data mining tools. A …
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 present novel sampling-based techniques for approximate answering of ad hoc aggregation queries in such databases.
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. 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. 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
