1236 search results - page 215 / 248 » Prefix-Like Complexities and Computability in the Limit |
ICDT
1999
ACM
15 years 2 months ago
1999
ACM
Abstract. In this paper we present a new approach for studying aggregations in the context of database query languages. Starting from a broad de nition of aggregate function, we ad...
VLDB
1999
ACM
15 years 2 months ago
1999
ACM
On-Line Analytical Processing (OLAP) based on a dimensional view of data is being used increasingly for the purpose of analyzing very large amounts of data. To improve query perfo...
SOFSEM
1998
Springer
15 years 1 months ago
1998
Springer
Abstract. Formal methods based on the mathematical theory of partially ordered sets (i.e., posets) have been used in the database field for the modelling of spatial data since many...
DEBS
2007
ACM
15 years 1 months ago
2007
ACM
Over the last decade a wide range of publish/subscribe (pub/ sub) systems have come out of the research community. However, there is little consensus on a common pub/sub API, whic...
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EUROPAR
2004
Springer
15 years 1 months ago
2004
Springer
Hierarchical agglomerative clustering (HAC) is a common clustering method that outputs a dendrogram showing all N levels of agglomerations where N is the number of objects in the d...