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RTCSA
2007
IEEE
13 years 10 months ago
A Continuous Query Index for Processing Queries on RFID Data Stream
RFID middleware systems collect and filter RFID streaming data gathered continuously by numerous readers to process requests from applications. These requests are called continuou...
Jaekwan Park, Bonghee Hong, ChaeHoon Ban
ICDE
2007
IEEE
119views Database» more  ICDE 2007»
13 years 10 months ago
Stream Variables: A Quick but not Dirty SQL Extension for Continuous Queries
The ability to query data streams is of increasing importance and has been identified as a crucial element for modern organizations and agencies. This paper identifies a class o...
Damianos Chatziantoniou, Yannis Sotiropoulos
DASFAA
2007
IEEE
202views Database» more  DASFAA 2007»
13 years 10 months ago
Optimizing Moving Queries over Moving Object Data Streams
With the increasing in demand on location-based aware services and RFIDs, efficient processing of continuous queries over moving object streams becomes important. In this paper, w...
Dan Lin, Bin Cui, Dongqing Yang
SOFSEM
2010
Springer
14 years 1 months ago
Flavors of KWQL, a Keyword Query Language for a Semantic Wiki
Abstract. This article introduces KWQL, spoken “quickel”, a rulebased query language for a semantic wiki based on the label-keyword query paradigm. KWQL allows for rich combine...
François Bry, Klara A. Weiand
SIGMOD
2001
ACM
130views Database» more  SIGMOD 2001»
14 years 4 months ago
Continuous Queries over Data Streams
Shivnath Babu, Jennifer Widom
SIGMOD
2002
ACM
145views Database» more  SIGMOD 2002»
14 years 4 months ago
Continuously adaptive continuous queries over streams
We present a continuously adaptive, continuous query (CACQ) implementation based on the eddy query processing framework. We show that our design provides significant performance b...
Samuel Madden, Mehul A. Shah, Joseph M. Hellerstei...
SIGMOD
2003
ACM
171views Database» more  SIGMOD 2003»
14 years 4 months ago
Adaptive Filters for Continuous Queries over Distributed Data Streams
We consider an environment where distributed data sources continuously stream updates to a centralized processor that monitors continuous queries over the distributed data. Signif...
Chris Olston, Jing Jiang, Jennifer Widom
SIGMOD
2006
ACM
109views Database» more  SIGMOD 2006»
14 years 4 months ago
OMCAT: optimal maintenance of continuous queries' answers for trajectories
We present our prototype system, OMCAT, which optimizes the reevaluation of a set of pending continuous spatio-temporal queries on trajectory data, when some of the trajectories a...
Hui Ding, Goce Trajcevski, Peter Scheuermann
VLDB
2006
ACM
203views Database» more  VLDB 2006»
14 years 4 months ago
The CQL continuous query language: semantic foundations and query execution
CQL, a Continuous Query Language, is supported by the STREAM prototype Data Stream Management System at Stanford. CQL is an expressive SQL-based declarative language for registeri...
Arvind Arasu, Shivnath Babu, Jennifer Widom
VLDB
2003
ACM
113views Database» more  VLDB 2003»
14 years 4 months ago
PSoup: a system for streaming queries over streaming data
Recent work on querying data streams has focused on systems where newly arriving data is processed and continuously streamed to the user in real time. In many emerging applications...
Sirish Chandrasekaran, Michael J. Franklin