نتایج جستجو برای: udf user defined function
تعداد نتایج: 1744991 فیلتر نتایج به سال:
We investigated the transferability of 20 Fragaria vesca microsatellite primer pairs to 13 Fragaria vesca accessions, six Fragaria species and ten commercially important species in Rosaceae. Genetic diversity studies were carried among 16 diploid Fragaria accessions using these polymorphic microsatellites. The average number of alleles amplified for a polymorphic locus was 4.7 with maximum bein...
1 Based on observations made with the NASA/ESA Hubble Space Telescope, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. These observations are associated with programs #9803. 2 Observations have been carried out using the Very Large Telescope at the ESO Paranal Observatory under Program ID(s): LP168.A-0485. ABSTRACT A very la...
Naive Bayes classifiers are an old and wellknown type of classifiers that can be seen as a special type of probabilistic networks. They use a probabilistic approach to assign a class to a case or an object and can easily be induced from a dataset of sample cases. In this paper I review this technique in order to demonstrate its simplicity and its power to produce comprehensible results. Since t...
An oil spill accident will cause serious harm to marine ecology and the environment. Rapid response effective prevention methods are required minimize damage of accidents. The critical problems that emergency rescue teams face when spilled reaches sea surface, extent oil, how far they from drilling platform. However, there is no reliable model predict diffusion distance oil. Accurately predicti...
Mathematical Model and Computer Simulation for Oil Spill in Ice Waters Around Island Based on FLUENT
The simulation of oil spill in ice waters was built by computational liquid dynamic software FLUENT. The coupling of pressure and velocity under unsteady-state conditions was solved by pressure implicit with splitting of operator algorithm. The boundary conditions of nonlinear free surface were solved by volume of fluid. And the numerical wave water flume was established by the user defined fun...
In this work, we introduce a scheme for modelling actor systems within sequential term rewriting. In our proposal, a TRS consists of the union of three components: the functional part (which is specific of a system), a set of rules for reducing concurrent actions, and a set of rules for defining a particular scheduling policy. A key ingredient of our approach is that concurrent systems are mode...
Data analytics has recently grown to include increasingly sophisticated techniques, such as machine learning and advanced statistics. Users frequently express these complex analytics tasks as workflows of user-defined functions (UDFs) that specify each algorithmic step. However, given typical hardware configurations and dataset sizes, the core challenge of complex analytics is no longer sheer d...
We propose a procedure for self-testing of an FPGA programmed to implement a user-defined function. The procedure is intended to improve the detectability of FPGA delay faults. This improvement is obtained by modifying the functions of LUTs in the section under test, so that each LUT implements a XOR function. We show that, despite many potential problems, the proposed modification can signific...
A compile-time analysis technique is developed to derive the probability with which a user-defined function or a supercombinator requires each one of its arguments. This provides a basis for identifying useful speculative parallelism in a program. The performance of speculative evaluation is compared with that of lazy evaluation, and the necessary conditions under which speculative evaluation p...
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