Consistent query answering is the problem of characterizing and computing the semantically correct answers to queries from a database that may not satisfy certain integrity constr...
Leopoldo E. Bertossi, Loreto Bravo, Enrico Francon...
We consider the problem of a user querying semistructured data such as RDF without knowing its structure. In these circumstances, it is helpful if the querying system can perform a...
Carlos A. Hurtado, Alexandra Poulovassilis, Peter ...
The ability to approximately answer aggregation queries accurately and efficiently is of great benefit for decision support and data mining tools. In contrast to previous sampling...
A growing number of databases especially those published on the Web are becoming available to external users. Users of these databases are provided simple form-based query interfa...
— An approximate string query is to find from a collection of strings those that are similar to a given query string. Answering such queries is important in many applications su...