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» Structural Recursion as a Query Language
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SIGMOD
2009
ACM
189views Database» more  SIGMOD 2009»
14 years 8 months ago
Generic and effective semi-structured keyword search
Current semi-structured keyword search and natural language query processing systems use ad hoc approaches to take advantage of structural information. Although intuitive, they ar...
Arash Termehchy, Marianne Winslett
ACL
2008
13 years 9 months ago
Searching Questions by Identifying Question Topic and Question Focus
This paper is concerned with the problem of question search. In question search, given a question as query, we are to return questions semantically equivalent or close to the quer...
Huizhong Duan, Yunbo Cao, Chin-Yew Lin, Yong Yu
CP
2010
Springer
13 years 6 months ago
Testing Expressibility Is Hard
We study the expressibility problem: given a finite constraint language Γ on a finite domain and another relation R, can Γ express R? We prove, by an explicit family of example...
Ross Willard
IFIP
2009
Springer
14 years 2 months ago
Applied Quantitative Information Flow and Statistical Databases
We firstly describe an algebraic structure which serves as solid basis to quantitatively reason about information flows. We demonstrate how programs in form of partition of state...
Jonathan Heusser, Pasquale Malacaria
VLDB
2007
ACM
136views Database» more  VLDB 2007»
14 years 8 months ago
A STEP Towards Realizing Codd's Vision of Rendezvous with the Casual User
This demonstration showcases the STEP system for natural language access to relational databases. In STEP an administrator authors a highly structured semantic grammar through cou...
Michael Minock