Query Optimization
Novel Distributed Query Optimization Model and Hybrid Query Optimization Algorithm
... distributed query optimization process was implemented around 1990s, a time at which communication over a network was prohibitively expensive and computer equipment was not cheap enough to be thrown at ...
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SPARQL QUERY OPTIMIZATION CATEGORIES: A BRIEF SURVEY
... sparql query optimization. [10] focuses on static query reordering in order to get an execution plan which is optimal according to the selectivity of triple ...
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Exploring Query Optimization Techniques in Relational Databases
... called query is used to interact with these database ...SQL query against a production database eventually becomes an issue sooner or ...Therefore, query optimization becomes necessary to ...
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A Comprehensive Review on Query Optimization for Distributed Databases
... Golshanara et al. (2014) [25] Distributed database systems offer completely new data storage and processing technology for today’s decentralized organizations. Because of large search space of corresponding plans ...
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Query Optimization and Execution for Multi-Dimensional OLAP
... string-based query languages in ...OLAP query algebra that ultimately allows developers to create expressive OLAP queries in native client languages such as ...Oriented query API, as well as a ...
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A SURVEY ON QUERY OPTIMIZATION IN CLOUD COMPUTING
... [10] Query Processing consists of two parts, query optimization and query ...A query optimizer first generates the optimized query ...tree. Query optimization ...
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A Review Paper on Query Optimization for Crowdsourcing Systems
... crowdsourced query optimization to support predicate ordering and in query evaluation, when performing a GROUP BY operation with a COUNT or AVG ...
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Mind Your Dependencies for Semantic Query Optimization
... semantic query optimization provides com- pelling gains in environments where very large relations are vertically partitioned ...a query manager interface), therefore, redundant joins or residual ...
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HEURISTIC APPROACH FOR MULTI QUERY OPTIMIZATION
... systematic query optimization, the system estimates the cost of every plan and then chooses the best ...systematic query optimization include access cost to secondary storage, storage cost, ...
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An Enhanced Approach to Query Optimization in Homogeneous Distributed Databases
... fuzzy query processes needs to be addressed. This is because fuzzy query processing supports sorting using multiple criteria at ...the query results. In this study, an enhanced approach to ...
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Query Optimization for Declarative Crowdsourcing System
... Passed query is executed based on the alternative execution query plans in crowd ...cost-based query optimization approach for declarative crowd sourcing systems is ...in query ...
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Compile-Time Query Optimization for Big Data Analytics
... SQL-like query language for large-scale data analysis that is deeply embedded in Scala and a query optimization framework that generates efficient byte code at ...the query and host ...
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Implementing Semantic Query Optimization in Relational Databases
... [10] Saini Mayank, Sharma Dharmendar and P. K. Gupta, “Enhancing Information Retrieval Efficiency Using Semantic-based-Combined-Similarity-Measure”; International Conference on Image Information Processing (ICIIP 2011), ...
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A Novel Approach of Query Optimization for Distributed Database Systems
... the optimization problem has to be restated as optimizing over the cost information exported by the ...known query optimization algorithms to take into account the high cost of optimization, ...
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Parallel System Used By Query Optimization for Crowdsourcing
... of Query optimization system is used complex ...complex query, which finds black cars with high-quality images and “positive” ...the query plan similarly to traditional databases: apply some ...
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Massive Data Query Optimization on Large Clusters
... fast query response time, especially to those ad hoc queries, is becoming very important in the large clusters ...the query optimization. We designed an efficient massive data query and ...
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Analysis of Classical Web-Centric Query Optimization Techniques
... same query capabilities. So, the working of query processor becomes more difficult and it needs to make sure that the generated query execution plan is feasible with respect to these ...and ...
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Pragmatic Approach to Query Optimization
... the query processor applies rules to the internal data structures of the query to transform these structures into equivalent, but more efficient ...the query and the relations it ...the query ...
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II. TRADITIONAL QUERY OPTIMIZATION TECHNIQUE
... uery optimization is vital to the performance of a database management system ...a query optimizer in a DBMS is to seek an efficient query execution plan for a given user query ...of ...
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Analysis of Query Optimization Techniques in Databases
... Query optimization refers to the process of executing a query ...given query such that it takes minimum number of operations and the memory ...the query evaluation process. Query ...
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