PODS
1997
ACM
13 years 12 months ago
1997
ACM
We consider the problem of answering datalog queries using materialized views. The ability to answer queries using views is crucial in the context of information integration. Prev...
PODS
1997
ACM
13 years 12 months ago
1997
ACM
In this paper, we present a new cost model for nearest neighbor search in high-dimensional data space. We first analyze different nearest neighbor algorithms, present a generaliza...
PODS
1997
ACM
13 years 12 months ago
1997
ACM
We rework parts of the classical relational theory when the underlying domain is a structure with some interpreted operations that can be used in queries. We identify parts of the...
SSDBM
1997
IEEE
13 years 12 months ago
1997
IEEE
Summarizability of OLAP and Statistical Databases is an a extremely important property because violating this condition can lead to erroneous conclusions and decisions. In this pa...
SSDBM
1997
IEEE
13 years 12 months ago
1997
IEEE
WEBDB
1998
Springer
13 years 12 months ago
1998
Springer
Semistructured graph-based databases have been proposed as well-suited stores for World-Wide Web data. Yet so far, languages for querying such data are too complex for casual Web ...
WEBDB
1998
Springer
13 years 12 months ago
1998
Springer
In its infancy, the World-Wide Web consisted of a web of largely static hypertext documents. As time progresses it is evolving into a domain which supports almost arbitrary network...
WEBDB
1998
Springer
13 years 12 months ago
1998
Springer
The World Wide Web is a vast resource for information. At the same time it is extremely distributed. A particular type of data such as restaurant lists maybe scattered across thous...
VLDB
1998
ACM
13 years 12 months ago
1998
ACM
The elapsed time for external mergesort is normally dominated by I/O time. This paper is focused on reducing I/O time during the merge phase. Three new buffering and readahead str...
VLDB
1998
ACM
13 years 12 months ago
1998
ACM
With today's demands for continuous availability of mission-critical databases, on-line reorganization is a necessity. In this paper we present a new on-Iine reorganization a...