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ICDT
2007
ACM
143views Database» more  ICDT 2007»
14 years 1 months ago
Database Query Processing Using Finite Cursor Machines
We introduce a new abstract model of database query processing, finite cursor machines, that incorporates certain data streaming aspects. The model describes quite faithfully what...
Martin Grohe, Yuri Gurevich, Dirk Leinders, Nicole...
OODBS
2000
147views Database» more  OODBS 2000»
13 years 11 months ago
Towards a Unified Query-by-Example (UQBE): UML as a Basis for a Generic Graphical Query Language
A generic graphical query language for ODMG-compliant object databases is proposed, based on the ideas of Query-By-Example, and using UML-like diagrams as schema notation. Ease of ...
Miguel Ángel Sicilia Urbán, Elena Ga...
PLANX
2008
13 years 9 months ago
Complexity of Earliest Query Answering with Streaming Tree Automata
We investigate the complexity of earliest query answering for n-ary node selection queries defined by streaming tree automata (STAs). We elaborate an algorithm that selects query ...
Olivier Gauwin, Anne-Cécile Caron, Joachim ...
SIGIR
2002
ACM
13 years 7 months ago
Using part-of-speech patterns to reduce query ambiguity
Query ambiguity is a generally recognized problem, particularly in Web environments where queries are commonly only one or two words in length. In this study, we explore one techn...
James Allan, Hema Raghavan
KDD
2004
ACM
139views Data Mining» more  KDD 2004»
14 years 8 months ago
Machine learning for online query relaxation
In this paper we provide a fast, data-driven solution to the failing query problem: given a query that returns an empty answer, how can one relax the query's constraints so t...
Ion Muslea