Sciweavers

320 search results - page 39 / 64
» Answering Queries from Statistics and Probabilistic Views
Sort
View
EDBT
2009
ACM
104views Database» more  EDBT 2009»
14 years 3 months ago
A query processor for prediction-based monitoring of data streams
Networks of sensors are used in many different fields, from industrial applications to surveillance applications. A common feature of these applications is the necessity of a mo...
Sergio Ilarri, Ouri Wolfson, Eduardo Mena, Arantza...
DELOS
2001
13 years 10 months ago
Relevance Feedback for Best Match Term Weighting Algorithms in Information Retrieval
Personalisation in full text retrieval or full text filtering implies reweighting of the query terms based on some explicit or implicit feedback from the user. Relevance feedback i...
Djoerd Hiemstra, Stephen E. Robertson
ICDE
2007
IEEE
111views Database» more  ICDE 2007»
14 years 9 months ago
Scoop: An Adaptive Indexing Scheme for Stored Data in Sensor Networks
We present the design of Scoop, a system for indexing and querying stored data in sensor networks. Scoop works by collecting statistics about the rate of queries and distribution ...
Thomer M. Gil, Samuel Madden
PODS
2008
ACM
204views Database» more  PODS 2008»
14 years 8 months ago
Annotated XML: queries and provenance
We present a formal framework for capturing the provenance of data appearing in XQuery views of XML. Building on previous work on relations and their (positive) query languages, w...
J. Nathan Foster, Todd J. Green, Val Tannen
EDBT
2012
ACM
228views Database» more  EDBT 2012»
11 years 11 months ago
Towards scalable data integration under constraints
In this paper we consider the problem of answering queries using views, with or without ontological constraints, which is important for data integration, query optimization, and d...
George Konstantinidis, José Luis Ambite