Despite these favorable results, a careful examination of the generated features in relation to the corresponding grammars reveals that it is relatively easy to generate the "right features" (as known by the researchers) from the grammars.
These are paralleled by their corresponding grammars, arranged similarly in the Chomsky hierarchy, consisting of regular grammars, context-free grammars, context-sensitive grammars and of the unrestricted transformational grammars for machines with random access memory [ 44].
Each of these functions is illustrated explicitly by a corresponding LA-grammar.
The technique of weighing evidence from a variety of comparative genomics approaches against expectations corresponding to different biological grammars, rather than considering homology alone, can provide an opportunity to learn more about novel, uncharacterized systems in silico and to provide more concrete and detailed hypotheses of processes and functions.
In case of forward search, a rule corresponding to a right regular grammar is constructed (cf. Section 3.2).
This means that any structural feature is modeled by one or more specific grammar rules with corresponding probabilities observed from real-life data.
The chemico-physical and geometrical characteristics of the three types of segments as deduced by the available structures in the PDB suggest how to build a grammar (or the corresponding automaton) for the prediction of the topology.
The factor structure also indicated that constructs are measured by the corresponding tasks within the EPE: the two grammar passages measure grammar proficiency; the reading passages measure reading proficiency, and so on.
In CFGs, inside properties can be boolean values which state whether the sub-sentence can be derived from some non-terminal symbol of the grammar, or numeric values corresponding to the weight of (all or best) such derivations [ 17, 20- 22].
