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PVLDB
2010
128views more  PVLDB 2010»
14 years 11 months ago
Searching Workflows with Hierarchical Views
Workflows are prevalent in diverse applications, which can be scientific experiments, business processes, web services, or recipes. With the dramatically growing number of workflo...
Ziyang Liu, Qihong Shao, Yi Chen
ICDE
2003
IEEE
102views Database» more  ICDE 2003»
16 years 5 months ago
Schema Mediation in Peer Data Management Systems
Intuitively, data management and data integration tools should be well-suited for exchanging information in a semantically meaningful way. Unfortunately, they suffer from two sign...
Alon Y. Halevy, Zachary G. Ives, Dan Suciu, Igor T...
WWW
2003
ACM
16 years 4 months ago
Ontology-Based Image Retrieval
The binary form of an image does not tell what the image is about. It is possible to retrieve images from a database using pattern matching techniques, but usually textual descript...
Avril Styrman, Eero Hyvönen, Kim Viljanen, Sa...
STOC
2009
ACM
120views Algorithms» more  STOC 2009»
16 years 4 months ago
Bit-probe lower bounds for succinct data structures
We prove lower bounds on the redundancy necessary to represent a set S of objects using a number of bits close to the information-theoretic minimum log2 |S|, while answering vario...
Emanuele Viola
ICDT
2009
ACM
135views Database» more  ICDT 2009»
15 years 11 months ago
Repair checking in inconsistent databases: algorithms and complexity
Managing inconsistency in databases has long been recognized as an important problem. One of the most promising approaches to coping with inconsistency in databases is the framewo...
Foto N. Afrati, Phokion G. Kolaitis