9 citations · 15 across the 10 of their papers we have counts for
9 papers · 1 filter
Preference Queries over Taxonomic Domains
Paolo Ciaccia, Davide Martinenghi, Riccardo Torlone
When composing multiple preferences characterizing the most suitable results for a user, several issues may arise. Indeed, preferences can be partially contradictory, suffer from a…
Keyword Search in the Deep Web
Andrea Calì, Davide Martinenghi, Riccardo Torlone
The Deep Web is constituted by data that are accessible through Web pages, but not readily indexable by search engines as they are returned in dynamic pages. In this paper we propo…
Optimization Strategies for Parallel Computation of Skylines
Paolo Ciaccia, Davide Martinenghi
Skyline queries are one of the most widely adopted tools for Multi-Criteria Analysis, with applications covering diverse domains, including, e.g., Database Systems, Data Mining, an…
Don't go gaga with GIGO
Hendrik Decker, Davide Martinenghi
We revisit integrity checking in relational and deductive databases with an approach that tolerates erroneous, inconsistent data. In particular, we relax the fundamental prerequisi…
PG-Triggers: Triggers for Property Graphs
Stefano Ceri, Anna Bernasconi, Alessia Gagliardi +3
Graph databases are emerging as the leading data management technology for storing large knowledge graphs; significant efforts are ongoing to produce new standards (such as the Gra…
Determining Relevant Relations for Datalog Queries under Access Limitations is Undecidable
Davide Martinenghi
Access limitations are restrictions in the way in which the tuples of a relation can be accessed. Under access limitations, query answering becomes more complex than in the traditi…
On the dependency on the size of the data when chasing under conceptual dependencies
Davide Martinenghi
Conceptual dependencies (CDs) are particular kinds of key dependencies (KDs) and inclusion dependencies (IDs) that precisely characterize relational schemata modeled according to t…
On the difference between checking integrity constraints before or after updates
Davide Martinenghi
Integrity checking is a crucial issue, as databases change their instance all the time and therefore need to be checked continuously and rapidly. Decades of research have produced…
Querying Incomplete Data over Extended ER Schemata
Andrea Cali, Davide Martinenghi
Since Chen's Entity-Relationship (ER) model, conceptual modeling has been playing a fundamental role in relational data design. In this paper we consider an extended ER (EER) model…