7 citations · 13 across the 7 of their papers we have counts for
7 papers
INODE: Building an End-to-End Data Exploration System in Practice [Extended Vision]
Sihem Amer-Yahia, Georgia Koutrika, Frederic Bastian +25
A full-fledged data exploration system must combine different access modalities with a powerful concept of guiding the user in the exploration process, by being reactive and antici…
Mapping Patterns for Virtual Knowledge Graphs
Diego Calvanese, Avigdor Gal, Davide Lanti +3
Virtual Knowledge Graphs (VKG) constitute one of the most promising paradigms for integrating and accessing legacy data sources. A critical bottleneck in the integration process in…
Counting Query Answers over a DL-Lite Knowledge Base (extended version)
Diego Calvanese, Julien Corman, Davide Lanti +1
Counting answers to a query is an operation supported by virtually all database management systems. In this paper we focus on counting answers over a Knowledge Base (KB), which may…
Enriching Ontology-based Data Access with Provenance (Extended Version)
Diego Calvanese, Davide Lanti, Ana Ozaki +2
Ontology-based data access (OBDA) is a popular paradigm for querying heterogeneous data sources by connecting them through mappings to an ontology. In OBDA, it is often difficult t…
Cost-Driven Ontology-Based Data Access (Extended Version)
Davide Lanti, Guohui Xiao, Diego Calvanese
In ontology-based data access (OBDA), users are provided with a conceptual view of a (relational) data source that abstracts away details about data storage. This conceptual view i…
Data Scaling in OBDA Benchmarks: The VIG Approach
Davide Lanti, Guohui Xiao, Diego Calvanese
In this paper we describe VIG, a data scaler for benchmarks in the context of ontology-based data access (OBDA). Data scaling is a relatively recent approach, proposed in the datab…
OBDA Constraints for Effective Query Answering (Extended Version)
Dag Hovland, Davide Lanti, Martin Rezk +1
In Ontology Based Data Access (OBDA) users pose SPARQL queries over an ontology that lies on top of relational datasources. These queries are translated on-the-fly into SQL queries…