777 search results - page 40 / 156 » Optimization of Relational Preference Queries |
SIGMOD
2007
ACM
14 years 9 months ago
2007
ACM
Incomplete information arises naturally in numerous data management applications. Recently, several researchers have studied query processing in the context of incomplete informat...
GIS
2005
ACM
14 years 10 months ago
2005
ACM
Group nearest neighbor (GNN) queries are a relatively new type of operations in spatial database applications. Different from a traditional kNN query which specifies a single quer...
GECCO
2007
Springer
14 years 3 months ago
2007
Springer
This paper explores connections between Ficici’s notion of solution concept and order theory. Ficici postulates that algorithms should ascend an order called weak preference; th...
ICDE
2005
IEEE
14 years 10 months ago
2005
IEEE
The SQL queries produced in XML-to-SQL query translation are often unnecessarily complex, even for simple input XML queries. In this paper we argue that relational systems can do ...
ADBIS
2010
Springer
13 years 10 months ago
2010
Springer
Abstract. To meet the new, more sophisticated needs of decision makers, a new generation of BI systems is emerging. In this paper we focus on two enabling technologies for this new...