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aggregate query processing

Aggregate-Query Processing in Data Warehousing Environments

For GPs that use only SQL aggregate components like max or sum, the equivalent SQL query is obtained by copying the entire subscript of the GP as the select clause of the SQL query and by copying the groupby components as the arguments of the groupby clause of the SQL query.

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Aggregate query processing in the presence of duplicates ...

2015-03-10  3. Aggregate query processing. In this section, we consider aggregate queries with the SQL-syntax presented in Section 1. 3.1. The LCA algorithm: one-phase aggregation. A naive brute-force (BF) algorithm can be designed as follows. All sensor nodes take their readings periodically and keep these readings into their local tables. Each sensor ...

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Aggregate query processing in the presence of duplicates ...

Aggregate query processing in the presence of duplicates in wireless sensor networks. Author links open overlay panel Jun-Ki Min a Jun-Ki Min a

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Aggregate data faster with approximate query processing ...

2019-05-22  Introduction to approximate query processing Data aggregation is a principal asset for data analysts when exploring any type of data, as well as an essential task for Business Intelligence (BI) tools when generating charts and dashboards for business users.

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Optimizing Aggregate Query Processing in Cloud Data Warehouses

aggregate query processing algorithms focus on optimizing various query operations but give less importance to communication cost overhead (Two-phase algorithm). However, in cloud architectures, the communi-cation cost overhead is an important factor in query processing. Thus, we consider communication overhead to improve the distributed query pro- cessing in such cloud data

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Aggregate Query Processing on Incomplete Data SpringerLink

2018-07-19  An interval estimation, composed of the upper and lower bound of aggregate query results among all possible interpretation of missing values, are presented to the end-users. The ground-truth aggregate result is guaranteed to be among the interval.

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Processing Complex Aggregate Queries over Data Streams

Processing Complex Aggregate Queries over Data Streams Alin Dobra Cornell University [email protected] Minos Garofalakis Bell Labs, Lucent [email protected] Johannes Gehrke Cornell University [email protected] Rajeev Rastogi Bell Labs, Lucent [email protected] ABSTRACT Recent years have witnessed an increasing interest in designing algorithms for querying

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Aggregate data faster with approximate query processing ...

2019-05-22  Aggregate data faster with approximate query processing. Posted at 10:22h in Oracle by Pere V. Share. The purpose of this blog article is to show the reader how to use approximate queries and, more importantly, how to evaluate and decide when to use them. The article includes an introduction to the approximate query processing

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Optimizing Aggregate Query Processing in Cloud Data Warehouses

aggregate query processing algorithms focus on optimizing various query operations but give less importance to communication cost overhead (Two-phase algorithm). However, in cloud architectures, the communi-cation cost overhead is an important factor in query processing. Thus, we consider communication overhead to improve the distributed query pro- cessing in such cloud data

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Ad-hoc aggregate query processing algorithms based on bit ...

Secondly, different aggregate operations for query processing are presented based on different encoding schemes. Thirdly, cost analysis for different aggregate operations is presented. Finally, the effectiveness and efficiency of the proposed algorithms is showed by the analytical and experimental results. References [1] Cannataro, M., Talia, D. and Srimani, P.K., Parallel data-intensive ...

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Aggregate query processing in the presence of duplicates ...

For such environments, an efficient aggregate query processing technique in WSNs was proposed in [7]. By using the identifier of each object, duplicates can be easily and accurately identified ...

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Processing Complex Aggregate Queries over Data Streams

Processing Complex Aggregate Queries over Data Streams Alin Dobra Cornell University [email protected] Minos Garofalakis Bell Labs, Lucent [email protected] Johannes Gehrke Cornell University [email protected] Rajeev Rastogi Bell Labs, Lucent [email protected] ABSTRACT Recent years have witnessed an increasing interest in designing algorithms for querying

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Aggregate Query Processing

Aggregate query processing in the presence of. Since the processing of a tumbling window query is the same as multiple invocations of a single window aggregate query, we assume 0 w without loss of generality in the rest of paper. to make our presentation simpler, we also assume that q w is invoked at timestamp 1 in this. Further Details. Citeseerx aggregate query processing of. Citeseerx ...

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Figure 6 from Aggregate-Query Processing in Data ...

Corpus ID: 5884328. Aggregate-Query Processing in Data Warehousing Environments @inproceedings{Gupta1995AggregateQueryPI, title={Aggregate-Query Processing in Data Warehousing Environments}, author={Ashish Gupta and Venky Harinarayan and D. Quass}, booktitle={VLDB}, year={1995} }

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an aggregate query processing system for wireless network

an aggregate query processing system for wireless network. aggregate query processing in sensor networks An Aggregate Query Processing System For Wireless Network Aggregate Query Processing In Wireless Sensor Networ aggregate query processing in wireless sensor network aggregate real time state information afterDictionary s List of Every Word of the Year

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Aggregate Query Processing In Peer To Peer Abstract

We have Aggregate Query Processing In Peer To Peer Abstract,A peertopeer based largescale data processing platform aggregate query processing in peer to peer networkspeer employs unstructured network and information retrieval technique to match columns of online aggregation 19 techniques to provide efficient query processing the normal peer and then processed by the query processor the

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Aggregate Query Processing In Peer To Peer Abstract

The system is designed for the aggregate queries processing over the different peer nodes within a network. The following diagram depicts the architecture of the system built Figure 1 Approximate Query Processing System. Peer Review Database Management System A Peer To. A Peer-to-Peer Database Management System Albena Roshelova PhD Thesis Proposal For the 18 cycle of the Program in

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Ad-hoc aggregate query processing algorithms based on bit ...

Secondly, different aggregate operations for query processing are presented based on different encoding schemes. Thirdly, cost analysis for different aggregate operations is presented. Finally, the effectiveness and efficiency of the proposed algorithms is showed by the analytical and experimental results. References [1] Cannataro, M., Talia, D. and Srimani, P.K., Parallel data-intensive ...

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Processing Complex Aggregate Queries over Data Streams

Processing Complex Aggregate Queries over Data Streams Alin Dobra Cornell University [email protected] Minos Garofalakis Bell Labs, Lucent [email protected] Johannes Gehrke Cornell University [email protected] Rajeev Rastogi Bell Labs, Lucent [email protected] ABSTRACT Recent years have witnessed an increasing interest in designing algorithms for querying

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Wolap: Wavelet-based range aggregate query processing

M. JAHANGIRI AND C. SHAHABI 1 WOLAP: Wavelet-Based Range Aggregate Query Processing Mehrdad Jahangiri and Cyrus Shahabi Abstract— The Discrete Wavelet Transform has emerged as Instead, we employed wavelet transform to compact incoming an elegant tool for data analysis queries. It was not until the queries rather than the underlying data. This resulted in time we proposed a new

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Aggregate Query Processing

Aggregate query processing in the presence of. Since the processing of a tumbling window query is the same as multiple invocations of a single window aggregate query, we assume 0 w without loss of generality in the rest of paper. to make our presentation simpler, we also assume that q w is invoked at timestamp 1 in this. Further Details. Citeseerx aggregate query processing of. Citeseerx ...

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Figure 5 from Aggregate-Query Processing in Data ...

Corpus ID: 5884328. Aggregate-Query Processing in Data Warehousing Environments @inproceedings{Gupta1995AggregateQueryPI, title={Aggregate-Query Processing in Data Warehousing Environments}, author={Ashish Gupta and Venky Harinarayan and D. Quass}, booktitle={VLDB}, year={1995} }

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Aggregate Query Processing In Peer To Peer Abstract

We have Aggregate Query Processing In Peer To Peer Abstract,A peertopeer based largescale data processing platform aggregate query processing in peer to peer networkspeer employs unstructured network and information retrieval technique to match columns of online aggregation 19 techniques to provide efficient query processing the normal peer and then processed by the query processor the

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Abstract For Aggregate Query Processing In Peer To Peer

Consider an aggregate query that has to be computed over data hosted in a network of n hosts. A simple ap-proach is to ship data from the n hosts and store it in a central database where query processing can take place the warehousing approach 5. The database can take steps e.g., concurrency control to ensure valid semantics for the.

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Probabilistic Top-k and Ranking-Aggregate Queries

processing techniques for probabilistic top-k queries. Section 6 describes spe-cial cases resulting from relaxing our framework assumptions. Section 7 de-scribes the formulation and processing of ranking-aggregate queries. Section 8 discusses other related query types. Section 9

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abstract for aggregate query processing in peer to p

abstract for aggregate query processing in peer to p. 2018-03-22T18:03:37+00:00 Mobile Crushers; Stationary Crushers; Grinding Mill; Washing Screening; Ore Beneficiation; Primary mobile crushing plant. Independent operating combined mobile crushing station. Mobile secondary crushing plant. Fine crushing and screening mobile station . Fine crushing washing mobile station. Three combinations ...

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Aggregate Query Processing In Peer To Peer Abstract

The system is designed for the aggregate queries processing over the different peer nodes within a network. The following diagram depicts the architecture of the system built Figure 1 Approximate Query Processing System. Peer Review Database Management System A Peer To. A Peer-to-Peer Database Management System Albena Roshelova PhD Thesis Proposal For the 18 cycle of the Program in

More

Processing Complex Aggregate Queries over Data Streams

Processing Complex Aggregate Queries over Data Streams Alin Dobra Cornell University [email protected] Minos Garofalakis Bell Labs, Lucent [email protected] Johannes Gehrke Cornell University [email protected] Rajeev Rastogi Bell Labs, Lucent [email protected] ABSTRACT Recent years have witnessed an increasing interest in designing algorithms for querying

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Aggregate-Query Processing in Data Warehousing ...

Aggregate-Query Processing in Data Warehousing Environments. Share on. Authors: Ashish Gupta. View Profile, ...

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Clustering spatial networks for aggregate query processing ...

made by the aggregate network operations during query processing. For this purpose, different techniques based on the clustering graph model are proposed in the literature. In this work, we show that the state-of-the-art clustering graph model is not able to correctly capture the disk access costs of aggregate network operations. Moreover, we propose a novel clustering hypergraph model that ...

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definition of aggregate query processing

Aggregate-Query Processing in Data Warehousing ... no aggregate function definition uses the distinct keyword (e.g., SUM(DISTINCT sale-auk)), and the. Processing Complex Aggregate Queries over Data Streams. Processing Complex Aggregate Queries over Data Streams Alin Dobra Cornell University [email protected] Minos Garofalakis Bell Labs, Lucent Aggregate query definition by Babylon’s free ...

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Abstract For Aggregate Query Processing In Peer To Peer

Consider an aggregate query that has to be computed over data hosted in a network of n hosts. A simple ap-proach is to ship data from the n hosts and store it in a central database where query processing can take place the warehousing approach 5. The database can take steps e.g., concurrency control to ensure valid semantics for the.

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Randomized Algorithms for Data Reconciliation in Wide Area ...

Area Aggregate Query Processing ... answering of aggregate queries over data that have been dis-tributed across multiple sites. Using our methods, it is pos-sible to efficiently generate aggregate query results that ac-count for duplicate and inconsistent values scattered across a federated system. 1. INTRODUCTION The problem of large-scale data integration [21, 6, 25, 16, 28], is of ...

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Probabilistic Threshold Range Aggregate Query Processing ...

Probabilistic Threshold Range Aggregate Query Processing over Uncertain ... Skyline Queries [PJLY07] Range query. DBG @ UNSW. 13. Uncertain objects, exact query ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow - id: 1594eb-ZDc1Z

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abstract for aggregate query processing in peer to p

abstract for aggregate query processing in peer to p. 2018-03-22T18:03:37+00:00 Mobile Crushers; Stationary Crushers; Grinding Mill; Washing Screening; Ore Beneficiation; Primary mobile crushing plant. Independent operating combined mobile crushing station. Mobile secondary crushing plant. Fine crushing and screening mobile station . Fine crushing washing mobile station. Three combinations ...

More

Aggregate Query Processing In Peer To Peer Abstract

The system is designed for the aggregate queries processing over the different peer nodes within a network. The following diagram depicts the architecture of the system built Figure 1 Approximate Query Processing System. Peer Review Database Management System A Peer To. A Peer-to-Peer Database Management System Albena Roshelova PhD Thesis Proposal For the 18 cycle of the Program in

More

Query behavior - IBM

The Rollup Processing property for data sources determines how aggregate rollups above the detail level in the report are computed. The default is set to local if local query processing is enabled, and is otherwise set to database. Improving performance by setting the query processing type The query processing property for data sources determines whether SQL processing is performed by the ...

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