372 search results - page 7 / 75 » Distance Functions to Detect Changes in Data Streams |
EDBT
2008
ACM
14 years 7 months ago
2008
ACM
Index trees created using distance based indexing are difficult to maintain online since the distance function involved is often costly to compute. This problem is intensified whe...
CICLING
2010
Springer
14 years 2 months ago
2010
Springer
We present an approach for automatic detection of topic change. Our approach is based on the analysis of statistical features of topics in time-sliced corpora and their dynamics ov...
ICDE
2007
IEEE
14 years 8 months ago
2007
IEEE
The goal of this paper is to monitor numerical streams, and to find subsequences that are similar to a given query sequence, under the DTW (Dynamic Time Warping) distance. Applica...
ICDE
2006
IEEE
14 years 8 months ago
2006
IEEE
Aggregate monitoring over data streams is attracting more and more attention in research community due to its broad potential applications. Existing methods suffer two problems, 1...
ICDE
2007
IEEE
14 years 8 months ago
2007
IEEE
Monitoring predefined patterns in streaming time series is useful to applications such as trend-related analysis, sensor networks and video surveillance. Most current studies on s...