December 2013
Intermediate to advanced
564 pages
19h 54m
English
Content preview from Big Data Computing
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23Toward Evolving Knowledge Ecosystems for Big Data Understanding
Refining Big Data Semantics Layer for Balancing Efficiency Effectiveness
As one may notice, the developments in the Big Data semantics layer are
mainly focused on posing and appropriately transforming the semantics of
queries all the way down to the available data, using networked ontologies.
At least two shortcomings of this, in fact, unidirectional
*
approach need to
be identied:
1. Scalability overhead implies insufcient efciency. Indeed, executing
queries at the data layer implies processing volumes at the scale of
stored data. Additional overhead is caused by the query tra ...
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