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VLDB
1994
ACM
152views Database» more  VLDB 1994»
15 years 1 months ago
The GMAP: A Versatile Tool for Physical Data Independence
Physical data independence is touted as a central feature of modern database systems. Both relational and object-oriented systems, however, force users to frame their queries in t...
Odysseas G. Tsatalos, Marvin H. Solomon, Yannis E....
TKDE
2012
194views Formal Methods» more  TKDE 2012»
13 years 1 days ago
A Query Formulation Language for the Data Web
— We present a query formulation language (called MashQL) in order to easily query and fuse structured data on the web. The main novelty of MashQL is that it allows people with l...
Mustafa Jarrar, Marios D. Dikaiakos
ICDT
2005
ACM
88views Database» more  ICDT 2005»
15 years 3 months ago
When Is Nearest Neighbors Indexable?
Abstract. In this paper, we consider whether traditional index structures are effective in processing unstable nearest neighbors workloads. It is known that under broad conditions...
Uri Shaft, Raghu Ramakrishnan
ICDT
2007
ACM
133views Database» more  ICDT 2007»
15 years 3 months ago
XML Schema Mappings in the Presence of Key Constraints and Value Dependencies
Abstract. Schema mappings play a central role in both data integration and data exchange, and are understood as high-level specifications describing the relationships between data...
Tadeusz Pankowski, Jolanta Cybulka, Adam Meissner
77
Voted
LREC
2010
238views Education» more  LREC 2010»
14 years 11 months ago
Context Fusion: The Role of Discourse Structure and Centering Theory
Questions are not asked in isolation. Their context, viz. the preceding interactions, might be of help to understand them and retrieve the correct answer. Previous research in Int...
Raffaella Bernardi, Manuel Kirschner, Zorana Ratko...