549 search results - page 35 / 110 » Data Expiration and Aggregate Queries |
156
click to vote
IHI
2012
13 years 7 months ago
2012
We present a novel software tool called CDN (Collaborative Data Network) for large-scale sharing and querying of clinical documents modeled using HL7 v3 standard (e.g., Clinical D...
189
click to vote
ICDE
2005
IEEE
16 years 1 months ago
2005
IEEE
Online monitoring of data streams poses a challenge in many data-centric applications, such as telecommunications networks, traffic management, trend-related analysis, webclick st...
101
click to vote
AIM
2004
14 years 11 months ago
2004
Reasoning about spatial data is a key task in many applications, including geographic information systems, meteorological and fluid flow analysis, computer-aided design, and prote...
VLDB
1998
ACM
15 years 4 months ago
1998
ACM
Many applications compute aggregate functions over an attribute (or set of attributes) to find aggregate values above some specified threshold. We call such queries iceberg querie...
231
click to vote
SIGMOD
2005
ACM
15 years 12 months ago
2005
ACM
Given a set of objects P and a query point q, a k nearest neighbor (k-NN) query retrieves the k objects in P that lie closest to q. Even though the problem is well-studied for sta...