expected query execution time
Adaptive Query Execution for Cloud Based Data Management
... is query process- ing on data stored in the underlying cloud ...for query processing on a cluster are those offered by parallel ...allows query processing solutions that are fault tolerant, but ...
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An XML-algebra for Efficient Set-at-a-time Execution
... XML query optimization is growing due to the rising number of XML-intensive data mining ...XML query focused mostly on rule-based optimization and used node-at-a-time execution ...Heavy ...
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Balancing Vectorized Query Execution with Bandwidth-Optimized Storage
... With growing dataset sizes, the percentage of a relation that can be stored inside the buffer pool decreases. To simulate this, we tested the performance of different policies under varying buffer size capacities, ...
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Reducing Run time Execution in Query Optimization
... compile time and are executed multiple times at run ...and execution, various parameter’s value may be very different during execution from those during the optimization ...during query ...
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An Algorithm for Solving Natural Language Query Execution Problems on Relational Databases
... and query execution related ...Structured Query Language (SQL). SQL (Structured Query Language) is the formal querying language for relational ...
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Estimation of Query Execution Time in Milli Seconds, Micro Seconds and Nano Seconds for Oracle, MsSQL and MsAccess Relational Databases
... Visual Query Tool. This user friendly window based calculating query execution time for various databases can be used on LAN using Client -Server ...the query execution ...
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Kappa-Join: Efficient Execution of Existential Quantification in XML Query Languages
... We demonstrate how to efficiently evaluate XML queries featuring existentially quanti- fied correlation predicates. To this end, we have introduced the novel Kappa-Join opera- tor that naturally fits into algebraic ...
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Distributed query execution system for Transactional Database using Lookup Table
... Abstract- As data volumes are incrementing rigorously, it is essential to store such large amount of data distributed across many machines. In OLTP databases, the most common strategy for scaling database workload is to ...
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Effective Cost Models for Predicting Web Query Execution Cost
... classical query optimizers use sophisticated cost models to compute the cost of executing a particular ...This query cost is composed of individual cost of the operators that are part of the final ...
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Cost-Optimal Execution of Boolean Query Trees with Shared Streams
... increasing d j c(S(j))/q j , fares in the shared case. In other terms, is Algorithm 1 really needed in practice? Figure 4 shows results for a set of randomly generated AND- trees. We define the sharing ratio, ρ, of a ...
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Optimizing XML information retrieval query execution at the physical level
... a query, these ele- ments receive an assessment based on two dimensions: exhaustivity and ...evaluation time, these two assessments are converted into a single relevance value on a scale of 0 to 1 using ...
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Backing off, NLP and Indexing Methods for String Matching in Query Execution
... B. Natural Language Processing (NLP) Technique It is a field of computer science, artificial intelligence and linguistics concerned with the interactions between computers and human (natural) languages. It facilitates ...
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Analytical Query Execution Optimized for all Layers of Modern Hardware
... analytical query execution engine built bottom-up from pre-compiled data-parallel sub-operators, implemented entirely in SIMD, and utiliz- ing the high-bandwidth memory to facilitate cache-conscious ...
226
Execution-time control for interrupt handling
... The AVR32 is a brand new architecture developed by Atmel Norway in cooperation with the Norwegian University of Science and Technology (NTNU). The GNU Ada Compiler (GNAT) and a bare-board Ravenscar run-time ...
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Practical yet Provably Secure: Complex Database Query Execution over Encrypted Data
... The techniques for query processing on encrypted data have been advanced by Popa et al. [123]. Compared to the construction by Hacigümüs et al., they found a solution without false positive results based on ...
151
Execution-Time Clocks and Ravenscar Kernels
... an execution-time timer and a supervisor task to detect possible overruns in a real-time ...the execution of the faulty task and can thus do some corrective action without waiting to the ...
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Query focused Sentence Compression in Linear Time
... Existing techniques are poorly suited to con- strained compression. While methods based on integer linear programming (ILP) can trivially ac- commodate such length and lexical restrictions (Clarke and Lapata, 2008; ...
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Construction of a Database Prototype for Query Execution with Enhanced Privacy and Regulatory Compliance
... the query. (2) The host server forwards the encrypted query to the Request Handler inside the ...the query and forwards it to the Query Parser. The query is parsed generating a set of ...
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Query Execution in Column-Oriented Database Systems. Daniel J. Abadi
... The experiments on compression performance presented in this chapter yield several surprising results. For example, for some queries, heavy weight compression schemes (schemes that optimize for compression ratio and ...
148
Expected Life Time at Birth in Kerala
... to the aging population and causing the rising of dependency ratio, increasing government spending on health care and pension, increasing the tax pay by current tax payers, shortage of working population and reducing ...
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