Sciweavers

1542 search results - page 194 / 309
» Redundancy in Spatial Databases
Sort
View
ICDE
1995
IEEE
99views Database» more  ICDE 1995»
14 years 10 months ago
Record Subtyping in Flexible Relations by Means of Attribute Dependencies
The model of flexible relations supports heterogeneous sets of tuples in a strongly typed way. The elegance of the standard relational model is preserved by using a single, generi...
Christian Kalus, Peter Dadam
SIGMOD
2005
ACM
155views Database» more  SIGMOD 2005»
14 years 9 months ago
On Boosting Holism in XML Twig Pattern Matching using Structural Indexing Techniques
Searching for all occurrences of a twig pattern in an XML document is an important operation in XML query processing. Recently a holistic method TwigStack [2] has been proposed. T...
Ting Chen, Jiaheng Lu, Tok Wang Ling
SIGMOD
2005
ACM
161views Database» more  SIGMOD 2005»
14 years 9 months ago
Mining Top-k Covering Rule Groups for Gene Expression Data
In this paper, we propose a novel algorithm to discover the topk covering rule groups for each row of gene expression profiles. Several experiments on real bioinformatics datasets...
Gao Cong, Kian-Lee Tan, Anthony K. H. Tung, Xin Xu
SIGMOD
2004
ACM
154views Database» more  SIGMOD 2004»
14 years 9 months ago
Compressing Historical Information in Sensor Networks
We are inevitably moving into a realm where small and inexpensive wireless devices would be seamlessly embedded in the physical world and form a wireless sensor network in order t...
Antonios Deligiannakis, Yannis Kotidis, Nick Rouss...
EDBT
2004
ACM
147views Database» more  EDBT 2004»
14 years 9 months ago
Efficient Query Evaluation over Compressed XML Data
XML suffers from the major limitation of high redundancy. Even if compression can be beneficial for XML data, however, once compressed, the data can be seldom browsed and queried i...
Andrei Arion, Angela Bonifati, Gianni Costa, Sandr...