Sciweavers

3361 search results - page 324 / 673
» An Approach of Performance Evaluation in Authentic Database ...
Sort
View
SIGMOD
2008
ACM
206views Database» more  SIGMOD 2008»
16 years 6 months ago
Ad-hoc aggregations of ranked lists in the presence of hierarchies
A variety of web sites and web based services produce textual lists at varying time granularities ranked according to several criteria. For example, Google Trends produces lists o...
Nilesh Bansal, Sudipto Guha, Nick Koudas
ICDE
2009
IEEE
179views Database» more  ICDE 2009»
16 years 1 months ago
Self-Tuning, Bandwidth-Aware Monitoring for Dynamic Data Streams
— We present SMART, a self-tuning, bandwidth-aware monitoring system that maximizes result precision of continuous aggregate queries over dynamic data streams. While prior approa...
Navendu Jain, Praveen Yalagandula, Michael Dahlin,...
DEXA
2009
Springer
166views Database» more  DEXA 2009»
16 years 1 months ago
Tags4Tags: Using Tagging to Consolidate Tags
Tagging has become increasingly popular and useful across various social networks and applications. It allows users to classify and organize resources for improving the retrieval p...
Leyla Jael García-Castro, Martin Hepp, Alex...
CIDR
2003
106views Algorithms» more  CIDR 2003»
15 years 8 months ago
Speculative Query Processing
Speculation is an every day phenomenon whereby one acts in anticipation of particular conditions that are likely to hold in the future. Computer science research has seen many suc...
Neoklis Polyzotis, Yannis E. Ioannidis
KDD
2012
ACM
235views Data Mining» more  KDD 2012»
13 years 9 months ago
A near-linear time approximation algorithm for angle-based outlier detection in high-dimensional data
Outlier mining in d-dimensional point sets is a fundamental and well studied data mining task due to its variety of applications. Most such applications arise in high-dimensional ...
Ninh Pham, Rasmus Pagh