December 2013
Intermediate to advanced
564 pages
19h 54m
English
Content preview from Big Data Computing
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220 Big Data Computing
accommodate new data sources. In both cases, some way is needed to ensure
that vocabulary and axioms are added to the ontology in a coherent way.
Regarding the ontology/data-source mappings, many of these will, like
the ontology, be generated automatically from either database schemata and
other available metadata or formal installation models. However, these ini-
tial mappings are unlikely to be sufcient in all cases, and they will certainly
need to evolve along with the ontology. Moreover, new data sources may be
added, and this again requires extension and adjustment of the mappings.
The management of large, evo
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