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Update propagation

Commercial systems automatically perform update propagation for the simple changes they support. Simple actions, such as column addition, deletion, or type... [Pg.158]

Since the release of version 9i, Oracle also provides a schema evolution feature called redefinition (Oracle Database lOg Release 2 2005). Redefinition is performed on single tables and allows the DBA to specify and execute multiple schema or semantic modifications on a table. Changes such as column addition or deletion, changing partitioning options, or bulk data transformation can be accomplished while the table is still available to applications until the final steps of the update propagation. [Pg.159]

The virtual transducer can be placed in a specific location on the test object surface, it can be moved along a path (e.g. a robot scanning path generated off-line or a path resulting from a real inspection sequence) or it can be moved along the surface, dynamically updating the ultrasonic sound propagation in the material. [Pg.871]

Each of these operators is unitary U —t) = U t). Updating a time step with the propagator Uf( At)U At)Uf At) yields the velocity-Verlet algorithm. Concatenating the force operator for successive steps yields the leapfrog algorithm ... [Pg.6]

In a standard back-propagation scheme, updating the weights is done iteratively. The weights for each connection are initially randomized when the neural network undergoes training. Then the error between the target output and the network predicted output are back-propa-... [Pg.7]

Probabilistic rules can be introduced into the CA in several ways. In "the speed of light," a rule that contains a random element leads to the propagation of a wavefront. When updating each cell, we could make a random choice between several different rules to introduce stochastic behavior, but we could also determine the future state of the cell by reference not to the... [Pg.184]

The application object makes necessary changes to its state to reflect the progress of the interaction dialog then it generates a command to the business object then it propagates updates to the widgets. [Pg.523]

The variables are updated and the step is repeated until convergence is achieved. Errors can be propagated either linearly in a matrix form by computing the derivatives of the unknowns with respect to the observations or by Monte-Carlo (brute force) techniques (e.g., Albarede 1995). [Pg.152]

Nonmodel-based controllers, such as the least mean square (LMS) and artificial neural network back-propagation adaptive controllers, employ iterative approaches to update control parameters in real time [14-17]. However, those methods may encounter difficulties of numerical divergence and local optimiza-... [Pg.354]

Appendixes Tables of solubility products, acid dissociation constants (updated to 2001 values), redox potentials, and formation constants appear at the back of the book. You will also find discussions of logarithms and exponents, equations of a straight line, propagation of error, balancing redox equations, normality, and analytical standards. [Pg.794]

Interaction may be explicit, in which case it is either direct interaction (e.g., a procedure call) or indirect (such as an event broadcast). Interaction may also be implicit, for example, if a resource is being shared between different functions. (The simpler these interactions are, the more likely it is that an analysis technique will be able to find them, and hence the more accurate the results of the analysis will be.) Change propagation is a central aspect of software development as developers modify software entities such as functions or variables to introduce new features or fix bugs, they must ensure that other entities in the software system are updated to be consistent... [Pg.107]


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See also in sourсe #XX -- [ Pg.153 , Pg.156 , Pg.159 , Pg.170 , Pg.180 , Pg.183 , Pg.187 ]




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