Sciweavers

2121 search results - page 376 / 425
» Indexing Incomplete Databases
Sort
View
CIKM
2009
Springer
15 years 6 months ago
Probabilistic skyline queries
The ability to deal with uncertain information is becoming increasingly important for modern database applications. Whereas a conventional (certain) object is usually represented ...
Christian Böhm, Frank Fiedler, Annahita Oswal...
ICDE
2010
IEEE
240views Database» more  ICDE 2010»
15 years 5 months ago
Top-K aggregation queries over large networks
Searching and mining large graphs today is critical to a variety of application domains, ranging from personalized recommendation in social networks, to searches for functional ass...
Xifeng Yan, Bin He, Feida Zhu, Jiawei Han
VLDB
1997
ACM
126views Database» more  VLDB 1997»
15 years 5 months ago
Dynamic Memory Adjustment for External Mergesort
Sorting is a memory intensive operation whose performance is greatly affected by the amount of memory available as work space. When the input size is unknown or available memory s...
Weiye Zhang, Per-Åke Larson
VLDB
1990
ACM
128views Database» more  VLDB 1990»
15 years 5 months ago
Advanced Query Processing in Object Bases Using Access Support Relations
Even though the large body of knowledge of relational query optimization techniques can be utilized as a starting point for object-oriented query optimization the full exploitatio...
Alfons Kemper, Guido Moerkotte
SPIESR
2001
174views Database» more  SPIESR 2001»
15 years 2 months ago
Mapping low-level image features to semantic concepts
Humans tend to use high-level semantic concepts when querying and browsing multimedia databases; there is thus, a need for systems that extract these concepts and make available a...
Daniela Stan, Ishwar K. Sethi