[PDF] Top 20 An IP model for the view selection problem

... complementary view selection ...of view v relative to S after selecting some set S of views including the top ...the view v* that can maximize the positive benefit in the current step is ... See full document

... an IP model for the view selection problem; the IP model was introduced in “A Formal Model for the Problem of View Selection for Aggregate ... See full document

... stochastic view selection problem in database management ...(SP) model for this problem and study the structure and properties of its extensive form, which is an integer pro- gramming ... See full document

... the problem, and compare favorably with several other approaches in the literature, including ...the problem in a multi-stage probabilistic environment. The SP and IP models presented in this ... See full document

... the IP model also depends on the number of lattice nodes that are actually included in the model, ...top view has the largest number of attributes and is always the top node in the ...largest ... See full document

... ing view-selection algorithms that are competitive, that is, provide optimality guarantees on their outputs without necessarily exploring the entire search space of ...formal model of warehouse ... See full document

... raw-data view relation, and it is desirable to explore solutions which do not force that relation to be materialized; these situations include the data-integration settings where certain views are materialized in ... See full document

... LP problem to obtain the associated lower bound; the lower bounds are also shown on the ...raw-data view, then each query would be computed directly from that view; the optimal query cost decreases ... See full document

... researchers view as undesirable. The multicollinear problem may arise when some or all of the explanatory variables in a regression are highly correlated with one ...this problem is, of course, ... See full document

... translation model on a corpus of ut- terance pairs extracted from Twitter human-human conversation and used it as a response generator for single-turn ...sequence problem and proposed an encoder-decoder ... See full document

... View selection optimization requires the defining of three components: an optimization function, a graphical model for algorithm traversal, and capable ... See full document

... in view of the existing support vector machine model, the accuracy of the parameter selection problem, proposed a parameter optimization method based on particle swarm optimization, for ... See full document

... For adding B, the system employs a function that divides users into groups according to their input values and that motivates users to discuss their evaluation of a specific document. For example, a book that was ... See full document

... This paper proposes a new framework for the formation of an optimal stock portfolio. The paper will argue that how an optimal stock portfolio is designed through the proposed approach compared with previous methods. In ... See full document

... It is similar to algebra, except it uses relation as value instead of number. It is procedural query language most commonly used for outer join. A set of operations are used to express a query. Each operation takes one ... See full document

... The process of the library development has to be aligned with the NPI process. The Quality audit checklist re- quires validation resource allocation at the very early development phase (Planning). During Planning period, ... See full document

... In this chapter we deal with testing for multiple structural breaks in a vector error correction model as a problem of model selection and approximate the Bayes factors by Schwarz's Baye[r] ... See full document

... institutional problem of health care provider selection, and their views have usually been collected through research projects, public-opinion solicitation of the government, and media ...institutional ... See full document

... algorithm selection problem can be cast as a learning problem: the aim is to learn a model that captures the relationship between the properties of the datasets, or meta-data, and the ... See full document

... modelling a demand node corresponding to a single tap. They proposed a relationship similar to Figure 1 on the basis that the flow at a node of the mathematical model would represent the abstraction at many demand ... See full document