Based on the alternating low- and elevated-energy nature of MSE data, properties of each ion (mass-to-charge ratio, retention time, intensity, etc).
Therefore, we include two OWL data properties, ' hasIntValueTarget' and ' hasFloatValueTarget', which are parallel to ' hasIntValue' and ' hasFloatValue' data properties.
Whereas numeric content can represented by OWL data properties (however, only rudimentary supported by reasoners), probabilistic associations or default expressions extend the scope of what can be sensibly expressed in a DL ontology, as DL is not an appropriate means to process this kind of knowledge (Schulz et al., 2009).
Data properties appeared in the original database sources were not fully covered, instead, only the important ones related to our purpose (chemogenomics and systems chemical biology).
Data properties have slightly changed over the three 454 generations (Roche Applied Science, 2008).
Its data properties DB and ID present the name of external source and the related identifier respectively; comments is used to put additional information such as why, who, how and how if needed.
QUDT also includes several major unit-systems such as the CSG system of Units, SI and others[ 17], but relates all other unit systems back to SI using two data properties - " conversion offset", " conversion multiplier" - that could enable automated conversion between any non-SI-based unit and its SI-based equivalent.
SADI Services consume and produce RDF data, where the input and output data properties are described by OWL classes.
The core ontologies consist of 142 classes, 42 object properties, 21 data properties and 556 asserted axioms.
Changes in other outcome measures between the two groups will be compared using simple tests of association such as chi-squared test and Student's t-test (depending on data properties).
To overcome this limitation, two other technologies have been proposed: the RDF Schema (RDFS), a specification language for data properties based on RDF; and the Web Ontology Language (OWL), a language to formally define semantics, which also enables reasoning based on Description Logics [ 17 19].
