Wikidata: a platform for your library’s linked open data

The research question this paper aims at answering is the following: In an ontology-driven annotation system, can the information extracted from external resources (namely, Wikidata) provide users with useful suggestions in the characterization of entities used for the annotation of documents from historical archives? The context of the research is the PRiSMHA project, in which the main goal is the development of a proof-of-concept prototype ontology-driven system for semantic metadata generation. The assumption behind this effort is that an effective access to historical archives needs a rich semantic knowledge, relying on a domain ontology, that describes the content of archival resources. In the paper, we present a new feature of the annotation system: when characterizing a new entity (e.g., a person), some properties describing it are automatically pre-filled in, and more complex semantic representations (e.g., events the entity is involved in) are suggested; both kinds of suggestions are based on information retrieved from Wikidata. In the paper, we describe the automatic algorithm devised to support the definition of the mappings between the Wikidata semantic model and the PRiSMHA ontology, as well as the process used to extract information from Wikidata and to generate suggestions based on the defined mappings. Finally, we discuss the results of a qualitative evaluation of the suggestions, which provides a positive answer to the initial research question and indicates possible improvements.

Wikidata Support in the Creation of Rich Semantic Metadata for Historical Archives

SUMMARY The project to create an authority list of the Italian states arises from the lack of such a list in Italy. The standardization of headings for the ancient states has taken into account all of the problems and difficulties arising from the nineteenth-century concept of ‘state,’ as we mean it today. That concept is quite difficult to apply to Italian states established before that time. This paper describes making this list.

Ancient Italian States: An Authority List Project

Authority lists or indices are key components of cataloging and metadata work as they provide critical anchoring points to disambiguate between various entities. This article describes the creation...

Katie Fletcher

Papers

Creating and Using a Glacier Authority Index to Document Climate Change