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Cultural Heritage Informatics Initiative

Hosted and administered by the Department of Anthropology in partnership with MATRIX: The Center for Digital Humanities and Social Sciences at Michigan State University, The Cultural Heritage Informatics Initiative is a platform for interdisciplinary scholarly collaboration in the domain of digital cultural heritage. In addition, the initiative strives to equip students with the methodological skills necessary to creatively apply information, communication, and computing technology to cultural heritage materials, questions, and challenges. 

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from the Cultural Heritage Informatics blog:

Querying the Collection of the British Museum for Propositional Objects

February 18, 2017 | nelso663 As I mentioned last month, one of the ideas of the semantic web is to render data from specialized, disparate sources comparable, and this is achieved by developing specifications like CIDOC-CRM. One implementation of CIDOC-CRM is the Erlangen CRM. Heritage institutions like the British Museum use implementations like this to organize their collection. It is implemented in the Web Ontology Language (OWL) and can be browsed in an ontology explorer like Protégé or by just reading the XML. The CIDOC-CRM includes a class called Conceptual Object. Conceptual Object is a subclass of Man-Made Thing and a superclass of both Propositional Object and Symbolic Object. I'm particularly interested in exploring the Propositional Object class, which includes
"immaterial items, including but not limited to stories, plots, procedural prescriptions, algorithms, laws of physics or images that are, or represent in some sense, sets of propositions about real or imaginary things and that are documented as single units or serve as topic of discourse" (CIDOC-CRM, n.d.).
According to the documentation, a set of exemplary instances of this class are the common plot points of Kurosawa's The Seven Samurai and Sturges' The Magnificent Seven. A query to a SPARQL endpoint in order to materialize that collection's Propositional Objects might read as follows:
# declare a prefix
# this allows us to refer to objects in the schema directly rather than by their full URI
# e.g., in the query below, crm:E89_Propositional_Object rather than the full URI http://erlangen-crm.org/current/E89_Propositional_Object
PREFIX crm: <http://erlangen-crm.org/current/>

# specify:
# a) the variable that the server should return (?instance)
# b) that the server should return unique instances only (with the DISTINCT modifier)
SELECT DISTINCT ?instance
# specify the pattern for the server to try to match
WHERE { 
 ?instance a crm:E89_Propositional_Object 
}
# state how the response should be ordered…
ORDER BY ?instance
# and the quantity of instances to limit the response to
LIMIT 100
Applying this query to the British Museum's SPARQL endpoint returns 100 instances of Propositional Object, including Afghan Studies, Annual Reports, and Annual Review of the Royal Inscriptions of Mesopotamia Project. Find the British Museum's SPARQL endpoint and some helpful examples here.

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