Sciweavers

2546 search results - page 168 / 510
» Managing long-running queries
Sort
View
163
Voted
EDBT
2010
ACM
141views Database» more  EDBT 2010»
15 years 11 months ago
Adaptive join processing in pipelined plans
In adaptive query processing, the way in which a query is evaluated is changed in the light of feedback obtained from the environment during query evaluation. Such feedback may, f...
Kwanchai Eurviriyanukul, Norman W. Paton, Alvaro A...
DAWAK
2001
Springer
15 years 11 months ago
Shared Index Scans for Data Warehouses
Tree based indexing structures like -trees, ·-trees, Bitmap indexes and Ê-trees have become essential for getting good performance when accessing vast datasets. However, most dat...
Yannis Kotidis, Yannis Sismanis, Nick Roussopoulos
SIGIR
2000
ACM
15 years 11 months ago
Structured translation for cross-language information retrieval
The paper introduces a query translation model that re ects the structure of the cross-language information retrieval task. The model is based on a structured bilingual dictionary...
Ruth Sperer, Douglas W. Oard
CIKM
1999
Springer
15 years 11 months ago
Architecture of a Metasearch Engine That Supports User Information Needs
When a query is submitted to a metasearch engine, decisions are made with respect to the underlying search engines to be used, what modifications will be made to the query, and ho...
Eric J. Glover, Steve Lawrence, William P. Birming...
VLDB
1998
ACM
121views Database» more  VLDB 1998»
15 years 10 months ago
Hash Joins and Hash Teams in Microsoft SQL Server
The query execution engine in Microsoft SQL Server employs hash-based algorithms for inner and outer joins, semi-joins, set operations (such as intersection), grouping, and duplic...
Goetz Graefe, Ross Bunker, Shaun Cooper