منابع مشابه
Computing Skylines on Distributed Data
In this paper we study skyline queries in the distributed computational model, where we have s remote sites and a central coordinator (the query node); each site holds a piece of data, and the coordinator wants to compute the skyline of the union of the s datasets. The computation is in terms of rounds, and the goal is to minimize both the total communication cost and the round cost. Viewing da...
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Fragmented Objects (FOs) extend the object concept to a distributed environment. The abstract view of a FO is a single, shared object, of which the distribution is hidden to clients. In the concrete view the FO designer controls (if wished) the distribution of data and function and of the communication between fragments. FO programming is supported by the FOG language, an extension of C++, and ...
متن کاملOn High Dimensional Skylines
In many decision-making applications, the skyline query is frequently used to find a set of dominating data points (called skyline points) in a multidimensional dataset. In a high-dimensional space skyline points no longer offer any interesting insights as there are too many of them. In this paper, we introduce a novel metric, called skyline frequency that compares and ranks the interestingness...
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Skyline evaluation techniques (also known as Pareto preference queries) follow a common paradigm that eliminates data elements by finding other elements in the data set that dominate them. To date already a variety of sophisticated skyline evaluation techniques are known, hence skylines are considered a well researched area. Nevertheless, in this paper we come up with interesting new aspects. O...
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ژورنال
عنوان ژورنال: Distributed and Parallel Databases
سال: 2018
ISSN: 0926-8782,1573-7578
DOI: 10.1007/s10619-018-7223-7