81 citations · 225 across the 21 of their papers we have counts for
5 papers · 1 filter
A Workflow Model for Holistic Data Management and Semantic Interoperability in Quantitative Archival Research
Pavlos Fafalios, Yannis Marketakis, Anastasia Axaridou +2
Archival research is a complicated task that involves several diverse activities for the extraction of evidence and knowledge from a set of archival documents. The involved activit…
The SeaLiT Ontology -- An Extension of CIDOC-CRM for the Modeling and Integration of Maritime History Information
Pavlos Fafalios, Athina Kritsotaki, Martin Doerr
We describe the construction and use of the SeaLiT Ontology, an extension of the ISO standard CIDOC-CRM for the modelling and integration of maritime history information. The ontol…
Estimating the Cost of Executing Link Traversal based SPARQL Queries
Antonis Sklavos, Pavlos Fafalios, Yannis Tzitzikas
An increasing number of organisations in almost all fields have started adopting semantic web technologies for publishing their data as open, linked and interoperable (RDF) dataset…
How Many and What Types of SPARQL Queries can be Answered through Zero-Knowledge Link Traversal?
Pavlos Fafalios, Yannis Tzitzikas
The current de-facto way to query the Web of Data is through the SPARQL protocol, where a client sends queries to a server through a SPARQL endpoint. Contrary to an HTTP server, pr…
Heuristics-based Query Reordering for Federated Queries in SPARQL 1.1 and SPARQL-LD
Thanos Yannakis, Pavlos Fafalios, Yannis Tzitzikas
The federated query extension of SPARQL 1.1 allows executing queries distributed over different SPARQL endpoints. SPARQL-LD is a recent extension of SPARQL 1.1 which enables to dir…