Abstract. This paper presents SERIMI, an automatic approach for solving the interlinking problem over RDF data. SERIMI matches instances between a source and a target datasets, without prior knowledge of the data, domain or schema of these datasets. Experiments conducted with benchmark collections demonstrate that our approach considerably outperforms state-of-the-art automatic approaches for s...

SPARQLing presents a graphical SPARQL query builder, which allows users of domain ontologies and RDF datasets formulate queries through visual inspection of classes and properties in the ontology or RDF schema. Our approach takes into account the users’ preferences in viewing the elements of the interface.

RDF is the first W3C standard for enriching information resources of the Web with detailed meta data. The semantics of RDF data is defined using a RDF schema. The most expressive language for querying RDF is RQL, which enables querying of semantics. In order to support RQL, a RDF storage system has to map the RDF graph model onto its storage structure. Several storage systems for RDF data have ...

We present Shape Expressions (ShEx), an expressive schema language for RDF designed to provide a high-level, user friendly syntax with intuitive semantics. ShEx allows to describe the vocabulary and the structure of an RDF graph, and to constrain the allowed values for the properties of a node. It includes an algebraic grouping operator, a choice operator, cardinalitiy constraints for the numbe...

This paper describes a multilingual metadata schema registry which has been developed at the University of Library and Information Science in Tsukuba, Japan. The registry currently has reference translations of Dublin Core Metadata Element Set written in 22 languages, DC Qualifiers and the DCMI Type Vocabulary written in English and Japanese, along with descriptive elements of the Nippon Catalo...

In this paper we describe the usage of the VRA metadata schema in converting, searching through, presenting and navigating cultural heritage collections in RDF. We use the MultimediaN demonstrator as illustration. Our research question is how to represent heterogeneous metadata collections in RDF for usage in generic semantic search, navigation and presentation features, while preserving the or...

Purpose – The purpose of this research is to develop a prototype of agent-based intelligent workflow system for product design collaboration in a distributed network environment. Design/methodology/approach – This research separates the collaborative workflow enactment mechanisms from the collaborative workflow building tools for flexible workflow management. Applying the XML/RDF (resource desc...

Thesauri can be useful resources for indexing and retrieval on the Semantic Web, but often they are not published in RDF/OWL. To convert thesauri to RDF for use in Semantic Web applications and to ensure the quality and utility of the conversion a structured method is required. Moreover, if different thesauri are to be interoperable without complicated mappings, a standard schema for thesauri i...

In order to access RDF data in Software development, one needs to deal with challenges concerning the integration of one or several RDF data sources into a host programming language. LITEQ allows for exploring an RDF data source and mapping the data schema and the data itself from this RDF data source into the programming environment for easy reuse by the developer. Core to LITEQ is a novel kin...

Business Intelligence (BI) tools provide fundamental support in analyzing large volumes of information. Data Warehouses (DW) and Online Analytical Processing (OLAP) tools are used to store and analyze data. Nowadays more and more information is available on the Web in the form of Resource Description Framework (RDF) and BI tools have huge potential of achieving better results by integrating rea...