Consistent Query Answering for Primary Keys in Datalog
Sign Up to like & getrecommendations! Published in 2020 at "Theory of Computing Systems"
DOI: 10.1007/s00224-020-09985-6
Abstract: We study the complexity of consistent query answering on databases that may violate primary key constraints. A repair of such a database is any consistent database that can be obtained by deleting a minimal set… read more here.
Keywords: query answering; consistent query; primary keys; query ... See more keywords
ADS-BI: Compressed Indexing of ADS-B Data
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Intelligent Transportation Systems"
DOI: 10.1109/tits.2017.2784371
Abstract: The introduction of ADS-B, a satellite-based aircraft tracking technology, and the increasing installation of ADS-B receiver stations around the globe eases the tracking of aircraft, compared with traditional solutions using secondary radar. Given the large… read more here.
Keywords: ads compressed; ads data; query answering; compressed indexing ... See more keywords
Efficient Datalog Rewriting for Query Answering in TGD Ontologies
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Knowledge and Data Engineering"
DOI: 10.1109/tkde.2021.3111011
Abstract: Tuple-generating dependencies (TGDs) are an expressive constraint language for ontology-mediated query answering and thus query answering is of high complexity. Existing systems based on first-order rewriting methods can lead to queries too large for DBMS… read more here.
Keywords: efficient datalog; datalog rewriting; rewriting query; query answering ... See more keywords
Deploying spatial-stream query answering in C-ITS scenarios
Sign Up to like & getrecommendations! Published in 2021 at "Semantic Web"
DOI: 10.3233/sw-200408
Abstract: Cooperative Intelligent Transport Systems (C-ITS) play an important role for providing the means to collect and exchange spatio-temporal data via V2X-based communication between vehicles and the infrastructure, which will become a central enabler for road… read more here.
Keywords: ontology; spatial stream; deploying spatial; answering scenarios ... See more keywords