641 search results - page 77 / 129 » Temporal Queries in OLAP |
157
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ER
2004
Springer
15 years 9 months ago
2004
Springer
Abstract. Past research work on modeling and managing temporal information has, so far, failed to elicit support in commercial database systems. The increasing popularity of XML oï...
132
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SEMWEB
2010
Springer
15 years 1 months ago
2010
Springer
The ability to answer temporal-oriented questions based on clinical narratives is essential to clinical research. The temporal dimension in medical data analysis enables clinical r...
138
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ICDE
1993
IEEE
15 years 8 months ago
1993
IEEE
To add time su port to the relational model, both first normal form (fNF and non-INF appmches have maining within 1NF when time support is added may introduce data redundancy. The...
183
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VLDB
2008
ACM
16 years 4 months ago
2008
ACM
Histograms are used to summarize the contents of relations into a number of buckets for the estimation of query result sizes. Several techniques (e.g., MaxDiff and V-Optimal) have ...
136
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SIGMOD
1998
ACM
15 years 8 months ago
1998
ACM
Query optimization is an integral part of relational database management systems. One important task in query optimization is selectivity estimation, that is, given a query P, we ...