274 search results - page 2 / 55 » Computational complexity of queries based on itemsets |
EDBT
2008
ACM
14 years 5 months ago
2008
ACM
For complex data mining queries, query optimization issues arise, similar to those for the traditional database queries. However, few works have applied the cost-based query optim...
ADC
2006
Springer
13 years 11 months ago
2006
Springer
Frequent itemsets mining is well explored for various data types, and its computational complexity is well understood. Based on our previous work by Nguyen and Orlowska (2005), th...
CORR
2008
Springer
13 years 5 months ago
2008
Springer
Analytical queries defined on data warehouses are complex and use several join operations that are very costly, especially when run on very large data volumes. To improve response...
SIGMOD
2006
ACM
14 years 5 months ago
2006
ACM
Recently, there has been extensive research that generated a wealth of new XML full-text query languages, ranging from simple Boolean search to combining sophisticated proximity a...
DEXA
2004
Springer
13 years 10 months ago
2004
Springer
Topological predicates between spatial objects have always been a main area of research on spatial data handling, reasoning, and query languages. The focus of research has definit...