467 search results - page 12 / 94 » Processing top k queries from samples |
SIGMOD
2010
ACM
13 years 7 months ago
2010
ACM
Given a graph database D and a query graph g, an exact subgraph matching query asks for the set S of graphs in D that contain g as a subgraph. This type of queries find important...
CORR
2011
Springer
13 years 4 months ago
2011
Springer
In this paper, we study a simple correlation-based strategy for estimating the unknown delay and amplitude of a signal based on a small number of noisy, randomly chosen frequency-...
ICDE
2009
IEEE
14 years 11 months ago
2009
IEEE
Information extraction from text databases is a useful paradigm to populate relational tables and unlock the considerable value hidden in plain-text documents. However, information...
SIGMOD
2010
ACM
14 years 2 months ago
2010
ACM
In this paper, we propose an online aggregation system called COSMOS (Continuous Sampling for Multiple queries in an Online aggregation System), to process multiple aggregate quer...
VLDB
1999
ACM
14 years 1 months ago
1999
ACM
In many applications, users specify target values for certain attributes, without requiring exact matches to these values in return. Instead, the result to such queries is typical...