Sciweavers

736 search results - page 43 / 148
» Answering Imprecise Queries over Web Databases
Sort
View
GIS
1995
ACM
15 years 3 months ago
A Window Retrieval Algorithm for Spatial Databases Using Quadtrees
An algorithm is presented to answer window queries in a quadtree-based spatial database environment by retrieving the covering blocks in the underlying spatial database. It works ...
Walid G. Aref, Hanan Samet
IADIS
2003
15 years 1 months ago
Querying Databases and XML Documents: Comparative Study and a New Proposal
XML has become the most useful standard of data interchange in the web and e-business world and there is a large amount of information stored in this format. Nonetheless, a large ...
Ana Fermoso García, María José...
SIGMOD
2009
ACM
167views Database» more  SIGMOD 2009»
16 years 3 days ago
HDSampler: revealing data behind web form interfaces
A large number of online databases are hidden behind the web. Users to these systems can form queries through web forms to retrieve a small sample of the database. Sampling such h...
Anirban Maiti, Arjun Dasgupta, Nan Zhang, Gautam D...
EDBT
2008
ACM
137views Database» more  EDBT 2008»
16 years 23 hour ago
Synthesizing structured text from logical database subsets
In the classical database world, information access has been based on a paradigm that involves structured, schema-aware, queries and tabular answers. In the current environment, h...
Alkis Simitsis, Georgia Koutrika, Yannis Alexandra...
ICDE
1999
IEEE
113views Database» more  ICDE 1999»
16 years 1 months ago
Capability-Sensitive Query Processing on Internet Sources
On the Internet, the limited query-processing capabilities of sources make answering even the simplest queries challenging. In this paper, we present a scheme called GenCompact fo...
Hector Garcia-Molina, Wilburt Labio, Ramana Yernen...