We present a formal framework for capturing the provenance of data appearing in XQuery views of XML. Building on previous work on relations and their (positive) query languages, w...
This paper describes the architecture of a Bulgarian–Bulgarian question answering system — BulQA. The system relies on a partially parsed corpus for answer extraction. The que...
d Abstract) Dario Colazzo1 , Giorgio Ghelli2 , Paolo Manghi2 , and Carlo Sartiani2 1 LRI - Universit?e Paris Sud 2 Dipartimento di Informatica - Universit`a di Pisa If a subexpress...
Dario Colazzo, Giorgio Ghelli, Paolo Manghi, Carlo...
A Data Warehouse DW is a database that collects and stores data from multiple remote and heterogeneous information sources. When a query is posed, it is evaluated locally, without...
Decision support applications involve complex queries on very large databases. Since response times should be small, query optimization is critical. Users typically view the data ...
Venky Harinarayan, Anand Rajaraman, Jeffrey D. Ull...