(Translated by https://www.hiragana.jp/)
# DBLP RDF SCHEMA - Recent Changes ## June 14, 2024 * Added owl:Class to all rdfs:Class In order to provide compatibility with OWL2 as well as backward compatibility with earlier standards, classes are now redundantly defined as both owl:Class and rdfs:Class. * Added dblp:omid property This new property has been added in order to link a dblp:Publication to their OpenCitations Meta Identifier (OMID). This ID is crucial in making use of open citation and reference data from OpenCitations.net. * Added dblp:VersionRelation class and related properties A new mechanism for "versions of publications" has been added to dblp. The new dblp:VersionRelation entity represents a link between a general, abstract publication concept with its instanced concrete versions. Each version relation is linked to exactly one abstract (concept) dblp:Publication and one specific (instance) dblp:Publication, and may list further metadata of the link, like a (mandatory) version label, a (mandatory) ascending sorting ordinal among all concrete versions, and an (optional) URI identifying the linked specific (instance) version. The dblp:hasVersion and dblp:isVersion properties link a version concept instance dblp:Publication to their dblp:VersionRelation entities. * Added dblp:isVersionOf property This is a redundant convenience property that directly links between dblp:Publication entities, without any of the additional metadata provided in the dblp:VersionRelation entities. You may use this property in queries if you only care for whether or not a given version relation exists between two publications. * Added dblp:Stream classes and related properties In this significant addition we introduce new dblp entities representing a "publication stream" (aka a "publication venue"). That is, a regular, common source where dblp:Publication entities are published. dblp:Stream entities come in four different concrete classes: dblp:Conference for conference and workshop series, dblp:Journal for periodic journals, dblp:Series for a periodic series of published book volumes, and dblp:Repository for sources of data publications. These entities provide metadata properties for stream titles (dblp:streamTitle, dblp:primaryStreamTitle, dblp:formerStreamTitle), identifiers (dblp:issn, dblp:iso4), and link to the stream's index webpage on the dblp website (dblp:indexPage). * Added dblp:publishedInStream property This property links a dblp:Publication to the dblp:Stream entity it has been published in. A dblp:Publication may be linked to multiple streams. E.g., a conference paper may be linked both to the dblp:Conference that accepted the paper in as well as the book series its conference proceedings has been published in. * Added dblp:relatedStream and sub-properties To model known relationships between stream, we added dblp:superStream and dblp:subStream to state vertical "part-of" relationships, dblp:predecessorStream and dblp:successorStream for temporal relationships, and dblp:relatedStream for a general, unspecified relation. * Removed old deprecated properties completely from schema We took the liberty to remove all old owl:DeprecatedProperty entries, which have been out of use since at least two years, from the schema file. ## October 17, 2023 * Changed content and type of dblp:monthOfPublication to xsd:gMonth The optional data field dblp:monthOfPublication did carry a descriptive xsd:string literal. This has now been translated to a xsd:gMonth. Please note that there is a number of descriptive strings in dblp that do not match properly to a month; those values are now ommitted. ## June 06, 2022 * Deprecated dblp:orderedCreators property The use of rdf:List was cumbersome when using this property in queries, and we needed a way to add additional metadata to the publication-creator link. Hence, we are dropping dblp:orderedCreators in favor of the dblp:hasSignature property and the new dblp:Signature entities. * Added dblp:Signature, dblp:AuthorSignature, dblp:EditorSignature classes and dblp:hasSignature property Those new entities represent the attribution link from a publication to a single creator. E.g., if a paper has four authors listed, then the dblp:Publication is linked to four dblp:Signature entities. Each signature is linked to exactly one dblp:Publication and one dblp:Creator, and may list further metadata of the link, like the (mandatory) ordinal of the signature (i.e., n for the n-th author listed on the paper) or an (optional) ORCID listed for that particular linked creator. * Extended the domain of dblp:webpage, dblp:archivedWebpage, and dblp:wikipedia to dblp:Entity We made this change to cover all external website links for all different entities in a more general manner. * Renamed dblp:electronicEdition to dblp:documentPage and dblp:primaryElectronicEdition to dblp:primaryDocumentPage, and deprecated dblp:archivedElectronicEdition We moved the dblp:Publication resource links under the general umbrella of dblp:webpage. At the same time, we renamed the external links for publications for clarity, and we removed dblp:archivedElectronicEdition since this is already covered by dblp:archivedWebpage. * Renamed dblp:fullCreatorName to dblp:creatorName, and dblp:primaryFullCreatorName to dblp:primaryCreatorName Those properties were cumbersome to use in queries, so we shortened them. * Deprecated dblp:otherFullCreatorName, dblp:otherAffiliation, dblp:otherHomepage, dblp:otherElectronicEdition properties The use of the dblp:other* properties were impractical when using in queries. Hence, we are dropping dblp:otherFullCreatorName, dblp:otherAffiliation, dblp:otherHomepage, and dblp:otherElectronicEdition in favor of the parent properties dblp:creatorName, dblp:affiliation, dblp:homepage, and dblp:documentPage.