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134
Voted
ADBIS
2009
Springer
148views Database» more  ADBIS 2009»
15 years 10 months ago
On Containment of Conjunctive Queries with Negation
Abstract. We consider the problem of query containment for conjunctive queries with the safe negation property. Some necessary conditions for this problem are given. A part of the ...
Victor Felea
283
Voted
ICDE
2009
IEEE
153views Database» more  ICDE 2009»
16 years 5 months ago
XBLEND: Visual XML Query Formulation Meets Query Processing
Due to the complexity of XML query languages, the need for visual query interfaces that can reduce the burden of query formulation is fundamental to the spreading of XML to wider c...
Zhou Yong, Sourav S. Bhowmick, Erwin Leonardi, Kla...
118
Voted
WWW
2009
ACM
16 years 4 months ago
Dataplorer: a scalable search engine for the data web
More and more structured information in the form of semantic data is nowadays available. It offers a wide range of new possibilities especially for semantic search and Web data in...
Haofen Wang, Qiaoling Liu, Gui-Rong Xue, Yong Yu, ...
154
Voted
DEXA
2008
Springer
181views Database» more  DEXA 2008»
15 years 5 months ago
Query Recommendation Using Large-Scale Web Access Logs and Web Page Archive
Query recommendation suggests related queries for search engine users when they are not satisfied with the results of an initial input query, thus assisting users in improving sear...
Lin Li, Shingo Otsuka, Masaru Kitsuregawa
134
Voted
ICDE
1997
IEEE
172views Database» more  ICDE 1997»
15 years 8 months ago
Modeling and Querying Moving Objects
In this paper we propose a data model for representing moving objects in database systems. It is called the Moving Objects Spatio-Temporal (MOST) data model. We also propose Futur...
A. Prasad Sistla, Ouri Wolfson, Sam Chamberlain, S...