قائمة الطعام
[Show full abstract] denoted the acquaintances of the local peer and also an adaptive dual-phase approach based on random walks of the P2P graph for efficiently serving range aggregate queries on ...
29 Accesses. Download reference work entry PDF. Synonyms. Aggregate queries in P2P systems; Top-k queries in P2P systems. Definition. Peer-to-peer (P2P) …
Range of Query Processing in Peer to Peer Networks Book Title Instrumentation, Measurement, Circuits and Systems ... aggregate query processing; computer networks; ... click here to get more infomation about aggregate query processing sensor networks. ... aggregate query processing in peer to peer networks with ...
An aggregate nearest neighbor (ANN) query returns a point of interest (POI) that minimizes an aggregate function for multiple query points. In this paper, we propose an efficient approach to tackle ANN queries in road networks. Our approach consists of two phases: searching phase and pruning phase. In particular, we first continuously compute …
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 ...
In this manner, the peer is behaving exactly like a single CQS. In the second strategy, which we refer to as BUDDY-HELP, the peer asks its buddy peers for "help" in processing the query. The buddy peers then process the query on behalf of the peer, and provide the peer with the results of the continuous query. 2.2 Pervasive Continuous Queries
TECHNOLOGY Aggregate Query Processing using Random walk approach in Dynamic Environment . By Vinod S. Gangwani and Prof P. L. Ramteke. Abstract. Peer-to-peer (P2P) network is increasingly becoming popular because it offers oppor¬tunities for real-time communication, ad-hoc collaboration and information sharing …
Robust and efficient aggregate query processing 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 net consists of numerous peer nodes that share data and resources with other peers on an equal basis
In this paper, we propose PACA, a probably approximately correct aggregate query processing scheme, for answering aggregate queries in structured …
This page is about abstract for aggregate query processing in peer to peer, click here to get more infomation about abstract for aggregate query processing in peer to peer. ... abstract for aggregate query processing in peer to peer, aggregation query processing in p2p networks cubecache: efficient and scalable processing of olap. CiteSeerX ...
[Show full abstract] paper identifies the scalability bottlenecks that can arise in large peer-to-peer networks from the execution of large numbers of aggregate computations and proposes a ...
In parallel processing of such queries, it must be decided which attribute to be used as a partitioning attribute, particularly join attribute or group-by attribute. Based on the partitioning attribute, we discuss three parallel aggregate-join query processing methods, namely: Join Partition Method (JPM), Aggregate Partition Method (APM), and ...
Given two spatial datasets P (e.g., facilities) and Q (queries), an aggregate nearest neighbor (ANN) query retrieves the point(s) of P with the smallest aggregate distance(s) to points in Q ...
SQL Aggregate Functions. An aggregate function is a function that performs a calculation on a set of values, and returns a single value. Aggregate functions are often used with the GROUP BY clause of the SELECT statement. The GROUP BY clause splits the result-set into groups of values and the aggregate function can be used to return a single value for …
However, existing ANN query processing approaches cannot handle the situation of uncertain graphs, because topological structures of an uncertain graph may vary in different possible worlds. Motivated by this, we propose the aggregate nearest neighbor query in uncertain graphs (UG-ANN) in this paper. First of all, we give the formal …
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, such as aggregation queries, these databases poses unique...
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 …
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 …
Analytical and simulation results show that Armada is an effective general range query scheme on constant-degree DHTs, and can return the query results within 2 logiV hops in a P2P system with N peers, regardless of the queried range or the size of query space. Original language. English. Article number. 4527242.
Aggregate Query Processing In Peer To Peer Networks abstract for aggregate query processing in peer CiteSeerX — TECHNOLOGY Aggregate Query Processing CiteSeerX Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Peertopeer (P2P) network is increasingly becoming popular because it offers oppor¬tunities for …
In its three phases, DPXPlain (a) answers a group-by aggregate query with DP, (b) allows users to compare aggregate values of two groups and with high probability assesses whether this comparison holds or is flipped by the DP noise, and (c) eventually provides an explanation table containing the approximately 'top-k' explanation predicates ...
abstract Aggregate monitoring over data streams is attracting more and more attention in research community due to its broad potential applications. Existing methods suffer two problems, 1) The aggregate functions which could be monitored are restricted to be first-order statistic or monotonic with respect to the window size.
Aggregate Query Processing In Peer To Peer Networks With Synopsis. SenQ: An Embedded Query System for Streaming . ... ABSTRACT Top-k query processing is a widespread field of research. Its application can be used in many fields like wireless sensor networks, mobile ad-hoc networks, peer-to-peer networks and many more. The basic …
The theorems that we develop next provide the foundations on which the decisions in the first phase are made. Recall that P ¼ fp1 ; p2 ; . . . ; pM g is the set of peers. For a tuple u, let yðuÞ ¼ 1 if u satisfies the selection condition, and yðuÞ ¼ 0 otherwise. P Let the aggregate for a peer p be yðpÞ ¼ u2p yðuÞ.
correlations between multiple queries, so that answering the batch as a whole can lead to higher overall accuracy than answering each query individually. For example, if one aggregate query Q1 (e.g., the total population of New York State and New Jersey) can be ex-pressed as the sum of two other queries (the population of New
Abstract. Sample-based approximate query processing (AQP) suffers from many pitfalls such as the inability to answer very selective queries and unreliable confidence intervals when sample sizes ...
Aggregate Query Processing using Random walk approach in Dynamic Environment, Abstract 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 …
Approximate Query Processing; aggregate Query Processing; computer networks; Go to Product Center. CiteSeerX — Citation Query Aggregate Queries in Peer-to ..., Abstract—Peer-to -Peer (P2P ... database query processing, ... random walks of the P2P graph for efficiently serving range aggregate queries on data cubes in a Peer ... Go to …
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.
abstract = "A tremendous amount of data is concealed behind form-based interfaces that communicate any user query to their data store to deliver query answer. These interfaces limit the number of retrieved search results to the top-k matching tuples that are sorted using a proprietary ranking function; the database owner may also impose ...
حقوق النشر ©2000- 2024 شركة شنغهاي زينيث
