Graph Manager

This module is used to interact with a set of merged RDF/OWL graphs.

class eltk.utils.GraphManager.GraphManager(graphs)

GraphManager takes a list of RDF and OWL files, merges them, and provides convenience methods for extracting data from the (combined) graph. Note: It contains GOLD specific funtion calls. Also, when the documentation refers to ‘object’ this should be interpreted by the user as the object node within the graph (subject predicate object) entity relations and not ‘object’ in the sense of OOP. Also, the term ‘subject’ should be considered the ‘subject’ node.

getAddress(subject)

Return a list of subjects that match rdf:type bibtex:hasAddress

Parameter:subject (str) – a URI Return type:list

getArticles()

Return a list of subjects that match rdf:type bibtex:Article

Return type:list

getAuthorList(subject)

Return a list of subjects that match rdf:type biblio:hasAuthorList

Parameter:subject (str) – a URI Return type:list

getAuthors(subject)

Return a list of authors that match the subject and biblio:hasAuthorList, e.g.:

• s: rdf:about=”http://www.linguistics-ontology.org/bibliography/gold-bibliography.rdf#Leman1980”
• p: biblio:hasAuthorList

Parameter:subject (str) – a URI Return type:list

getBibtexPublicationType()

Returns a list of rdflib.Literal.Literal objects

Return type:list

getBookTitle(subject)

Return a list of subjects that match rdf:type bibtex:hasBookTitle

Parameter:subject (str) – a URI Return type:list

getBooks()

Return a list of subjects that match rdf:type bibtex:Book

Return type:list

getChapter(subject)

Return a list of subjects that match rdf:type bibtex:hasChapter

Parameter:subject (str) – a URI Return type:list

getCitations(subject)

Return a list of objects where the subject parameter matches the biblio[“hasCitation”] predicate

Parameter:subject (str) – a URI Return type:list

getCitationsBibtexAddress(subject)

Return a list of objects where the subject parameter matches the biblio[“hasAddress”] predicate

Parameter:subject (str) – a URI Return type:list

getCitationsBibtexAuthors(subject)

Get object matches of a graph given a tuple (subject, biblio:hasAuthorList). The subject passed it needs to be a string and not a rdflib.URI object.

Parameter:subject (str) – subject passed it needs to be a string and not a rdflib.URI object Return type:list

getCitationsBibtexComment(subject)

Return a list of objects where the subject parameter matches the rdfs[“comment”] predicate

Parameter:subject (str) – a URI Return type:list

getCitationsBibtexEditors(subject)

Return a list of objects where the subject parameter matches the biblio[“hasEditorList”] predicate

Parameter:subject (str) – a URI Return type:list

getCitationsBibtexEntry(subject)

Return a list of objects where the subject parameter matches the biblio[“hasEntry”] predicate

Parameter:subject (str) – a URI Return type:list

getCitationsBibtexJournal(subject)

Return a list of objects where the subject parameter matches the biblio[“hasJournal”] predicate

Parameter:subject (str) – a URI Return type:list

getCitationsBibtexPublicationYear(subject)

Get object matches of a graph given a tuple (subject, biblio:hasBookTitle). The subject passed it needs to be a string and not a rdflib.URI object.

Parameter:subject (str) – subject passed it needs to be a string and not a rdflib.URI object Return type:list

getCitationsBibtexPublisher(subject)

Return a list of objects where the subject parameter matches the biblio[“hasPublisher”] predicate

Parameter:subject (str) – a URI Return type:list

getCitationsBibtexSeries(subject)

Return a list of objects where the subject parameter matches the biblio[“hasSeries”] predicate

Parameter:subject (str) – a URI Return type:list

getCitationsBibtexTitle(subject)

Get object matches of a graph given a tuple (subject, biblio:hasBookTitle). The subject passed it needs to be a string and not a rdflib.URI object.

Parameter:subject (str) – subject passed it needs to be a string and not a rdflib.URI object Return type:list

getCitationsBibtexVolume(subject)

Return a list of objects where the subject parameter matches the biblio[“hasVolume”] predicate

Parameter:subject (str) – a URI Return type:list

getCitationsPages(subject)

Return a list of objects where the subject parameter matches the biblio[“hasPageInformation”] predicate

Parameter:subject (str) – a URI Return type:list

getClasses()

Returns all subjects that match rdfs:type predicates and owl:Class objects. Returns a list of type rdflib.Literal.Literal.

Return type:list Returns:a list of rdflib.URIRef.URIRef objects

getDescription(subject)

Gets each class’ rdfs:comment. Takes a list of subjects. Returns a list of lists of rdflib.Literals, which are of type list, e.g. [rdflib.Literal(‘Verbalizer is the class of category changing units that change nouns into verbs.’, language=None, datatype=None)]. Print on an rdflib.Literal prints the URI.

Parameter:subject (str) – a URI Return type:list

getDescriptions(l)

Gets each class’ rdfs:comment. Takes a list of subjects. Returns a list of lists of rdflib.Literals, which are of type list, e.g. [rdflib.Literal(‘Verbalizer is the class of category changing units that change nouns into verbs.’, language=None, datatype=None)]

Parameter:l (list) – a list of subject nodes Return type:list

getEditorList(subject)

Return a list of subjects that match rdf:type biblio:hasEditorList

Parameter:subject (str) – a URI Return type:list

getInCollections()

Return a list of subjects that match rdf:type bibtex:InCollection

Return type:list

getInProceedings()

Return a list of subjects that match rdf:type bibtex:InProceedings

Return type:list

getJournal(subject)

Return a list of subjects that match rdf:type bibtex:hasJournal

Parameter:subject (str) – a URI Return type:list

getLabel(subject)

Return a list of objects where the subject parameter matches the rdfs[“label”] predicate

Parameter:subject (str) – a URI Return type:list

getLabels(l)

Return a list of objects where the subject parameter matches the rdfs[“label”] predicate

Parameter:l (list) – a list of subject (strs) as URIs Return type:list

getLength()

Return length of (merged) graph(s).

Return type:int Returns:length of the graph

getMiscs()

Return a list of subjects that match rdf:type bibtex:Misc

Return type:list

getPages(subject)

Return a list of subjects that match rdf:type bibtex:hasPages

Parameter:subject (str) – a URI Return type:list

getPhdTheses()

Return a list of subjects that match rdf:type bibtex:PhDThesis

Return type:list

getPredicateObjects(subject)

Return a list of predicate and object tuples for a given subject

Parameter:subject (str) – a URI Return type:list Returns:a list of predicate and object tuples that match the

getPublisher(subject)

Return a list of subjects that match rdf:type bibtex:hasPublisher

Parameter:subject (str) – a URI Return type:list

getSeq(subject)

Returns a sequence of objects that match the subject parameter and rdf:_1

Parameter:subject (str) – a URI Return type:list

getSeqs(bnode)

Return a list of predicates_object tuples that have a bnode

Parameter:bnode (str) – a URI Return type:list

getSubClasses(subject)

Returns a list of rdflib.URIRef objects that contains the subClassOf relations for the passed in subject.

Parameter:subject (str) – a URI Return type:list

getSubjectObjects(predicate)

Returns a list of (subject, object) tuples for the given predicate. The predicate may be passed as either a uri or as a tuple of (uri_prefix, concept).

Parameter:predicate (str) – a URI Return type:list

getTechReports()

Return a list of subjects that match rdf:type bibtex:TechReport

Return type:list

getTitle(subject)

Return a list of subjects that match rdf:type bibtex:Title

Parameter:subject (str) – a URI Return type:list

getVolume(subject)

Return a list of subjects that match rdf:type bibtex:hasVolume

Parameter:subject (str) – a URI Return type:list

getYear(subject)

Return a list of subjects that match rdf:type bibtex:hasYear

Parameter:subject (str) – a URI Return type:list

isDefinedBy()

Returns a list of of (rdflib.URIRef, rdflib.URIRef) tuples for (subject, object) defined by the predicate rdfs:isDefinedBy.

Return type:list

printGraph()

Print the graph