249 search results - page 43 / 50 » Online Aggregation |
PODS
2005
ACM
14 years 7 months ago
2005
ACM
Suppose we have a large table T of items i, each with a weight wi, e.g., people and their salary. In a general preprocessing step for estimating arbitrary subset sums, we assign e...
ICDE
2010
IEEE
14 years 7 months ago
2010
IEEE
Estimation via sampling out of highly selective join queries is well known to be problematic, most notably in online aggregation. Without goal-directed sampling strategies, samples...
CIMCA
2005
IEEE
14 years 1 months ago
2005
IEEE
In Internet marketing, Web audience analysis is essential to understanding the visitors’ needs. However, the existing analysis tools fail to deliver summarized and conceptual me...
KDD
2005
ACM
14 years 7 months ago
2005
ACM
In this paper, we propose a new way to automatically model and predict human behavior of receiving and disseminating information by analyzing the contact and content of personal c...
WWW
2008
ACM
14 years 8 months ago
2008
ACM
High-quality, personalized recommendations are a key feature in many online systems. Since these systems often have explicit knowledge of social network structures, the recommenda...