Abstract. In the context of XML data management systems, the estimation of query cardinality is becoming more and more important: the information provided by a query result estimat...
In this paper we analyze queries and sessions intended to satisfy children’s information needs using a large-scale query log. The aim of this analysis is twofold: i) To identify...
Sergio Duarte Torres, Djoerd Hiemstra, Pavel Serdy...
Generating alternative queries, also known as query suggestion, has long been proved useful to help a user explore and express his information need. In many scenarios, such sugges...
There is a growing need to associate a variety of metadata with the underlying data, but a simple, elegant approach to uniformly model and query both the data and the metadata has...
W e discuss the modification of queries against an integrated view in a federation of object-oriented databases. W epresent a generalisation of existing algorithms for simple glob...