6905 search results - page 1241 / 1381 » Querying Multidimensional Databases |
SIGMOD
1997
ACM
14 years 1 months ago
1997
ACM
This paper presents general algorithms for concurrency control in tree-based access methods as well as a recovery protocol and a mechanism for ensuring repeatable read. The algori...
ISMIS
1997
Springer
14 years 1 months ago
1997
Springer
e about image features can be expressed as a hierarchical structure called a Type Abstraction Hierarchy (TAH). TAHs can be generated automatically by clustering algorithms based on...
SSD
1997
Springer
14 years 1 months ago
1997
Springer
Abstract: In many geographical applications there is a need to model spatial phenomena not simply by sharp objects but rather through indeterminate or vague concepts. To support su...
VLDB
1997
ACM
14 years 1 months ago
1997
ACM
Data warehouses and recording systems typically have a large continuous stream of incoming data, that must be stored in a manner suitable for future access. Access to stored recor...
BIRTHDAY
1992
Springer
14 years 1 months ago
1992
Springer
A context-free grammar is a single-tree grammar (STG) if every nonterminal symbol has at most one production rule whose right hand side contains nonterminal symbols. Various prope...