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ACL
2009
15 years 4 months ago
System for Querying Syntactically Annotated Corpora
This paper presents a system for querying treebanks. The system consists of a powerful query language with natural support for cross-layer queries, a client interface with a graph...
Petr Pajas, Jan Stepánek
AMW
2011
14 years 10 months ago
A Direct Translation from XPath to Nondeterministic Automata
Since navigational aspects of XPath correspond to first-order definability, it has been proposed to use the analogy with the very successful technique of translating LTL into aut...
Nadime Francis, Claire David, Leonid Libkin
INFORMATICALT
2010
110views more  INFORMATICALT 2010»
15 years 4 months ago
From XML to Relational Models
For many businesses and organizations, the achievement of interoperability has proven to be a highly desirable goal. However, without efficient schema mapping mechanisms or models ...
Elena Castro, Dolores Cuadra, Manuel Velasco
ICDE
1998
IEEE
153views Database» more  ICDE 1998»
16 years 8 months ago
Flattening an Object Algebra to Provide Performance
Algebraic transformation and optimization techniques have been the method of choice in relational query execution, but applying them in OODBMS is difficult due to the complexity o...
Peter A. Boncz, Annita N. Wilschut, Martin L. Kers...
VLDB
2002
ACM
101views Database» more  VLDB 2002»
16 years 7 months ago
Efficient similarity search for market basket data
Several organizations have developed very large market basket databases for the maintenance of customer transactions. New applications, e.g., Web recommendation systems, present th...
Alexandros Nanopoulos, Yannis Manolopoulos