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PVLDB
2008
93views more  PVLDB 2008»
13 years 3 months ago
Querying and mining of time series data: experimental comparison of representations and distance measures
The last decade has witnessed a tremendous growths of interests in applications that deal with querying and mining of time series data. Numerous representation methods for dimensi...
Hui Ding, Goce Trajcevski, Peter Scheuermann, Xiao...
PVLDB
2008
137views more  PVLDB 2008»
13 years 3 months ago
EasyTicket: a ticket routing recommendation engine for enterprise problem resolution
Managing problem tickets is a key issue in the IT services industry. A large service provider may handle thousands of problem tickets from its customer on daily basis. The efficie...
Qihong Shao, Yi Chen, Shu Tao, Xifeng Yan, Nikos A...
PVLDB
2008
128views more  PVLDB 2008»
13 years 3 months ago
Brighthouse: an analytic data warehouse for ad-hoc queries
Brighthouse is a column-oriented data warehouse with an automatically tuned, ultra small overhead metadata layer called Knowledge Grid, that is used as an alternative to classical...
Dominik Slezak, Jakub Wroblewski, Victoria Eastwoo...
PVLDB
2008
123views more  PVLDB 2008»
13 years 3 months ago
Propagating functional dependencies with conditions
The dependency propagation problem is to determine, given a view defined on data sources and a set of dependencies on the sources, whether another dependency is guaranteed to hold...
Wenfei Fan, Shuai Ma, Yanli Hu, Jie Liu, Yinghui W...
PVLDB
2008
82views more  PVLDB 2008»
13 years 3 months ago
TraClass: trajectory classification using hierarchical region-based and trajectory-based clustering
Trajectory classification, i.e., model construction for predicting the class labels of moving objects based on their trajectories and other features, has many important, real-worl...
Jae-Gil Lee, Jiawei Han, Xiaolei Li, Hector Gonzal...
PVLDB
2008
104views more  PVLDB 2008»
13 years 3 months ago
Scalable multi-query optimization for exploratory queries over federated scientific databases
The diversity and large volumes of data processed in the Natural Sciences today has led to a proliferation of highlyspecialized and autonomous scientific databases with inherent a...
Anastasios Kementsietsidis, Frank Neven, Dieter Va...
PVLDB
2008
84views more  PVLDB 2008»
13 years 3 months ago
When is it time to rethink the aggregate configuration of your OLAP server?
OLAP servers based on relational backends typically exploit materialized aggregate tables to improve response times of complex analytical queries. One of the key problems in this ...
Katja Hose, Daniel Klan, Matthias Marx, Kai-Uwe Sa...