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CNL
2009
15 years 3 months ago
Controlled English Ontology-Based Data Access
Abstract. As it is well-known, querying and managing structured data in natural language is a challenging task due to its ambiguity (syntactic and semantic) and its expressiveness....
Camilo Thorne, Diego Calvanese
STDBM
2004
Springer
143views Database» more  STDBM 2004»
15 years 7 months ago
Indexing Query Regions for Streaming Geospatial Data
This paper introduces the Dynamic Cascade Tree (DCT), a structure designed to index query regions on multi-dimensional data streams. The DCT is designed for a stream management sy...
Quinn Hart, Michael Gertz
ICDE
2008
IEEE
124views Database» more  ICDE 2008»
16 years 3 months ago
Randomized Synopses for Query Assurance on Data Streams
The overwhelming flow of information in many data stream applications forces many companies to outsource to a third-party the deployment of a Data Stream Management System (DSMS) f...
Ke Yi, Feifei Li, Marios Hadjieleftheriou, George ...
EDBT
2008
ACM
137views Database» more  EDBT 2008»
16 years 2 months ago
Optimizing away joins on data streams
Abstract. Monitoring aggregates on IP traffic data streams is a compelling application for data stream management systems. Often, such streaming aggregation queries involve joining...
Lukasz Golab, Theodore Johnson, Nick Koudas, Dives...
KDD
2003
ACM
162views Data Mining» more  KDD 2003»
16 years 2 months ago
Improving spatial locality of programs via data mining
In most computer systems, page fault rate is currently minimized by generic page replacement algorithms which try to model the temporal locality inherent in programs. In this pape...
Karlton Sequeira, Mohammed Javeed Zaki, Boleslaw K...