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CIVR
2010
Springer
299views Image Analysis» more  CIVR 2010»
15 years 8 days ago
Co-reranking by mutual reinforcement for image search
Most existing reranking approaches to image search focus solely on mining "visual" cues within the initial search results. However, the visual information cannot always ...
Ting Yao, Tao Mei, Chong-Wah Ngo
PODS
2008
ACM
170views Database» more  PODS 2008»
15 years 10 months ago
Answering aggregate queries in data exchange
Data exchange, also known as data translation, has been extensively investigated in recent years. One main direction of research has focused on the semantics and the complexity of...
Foto N. Afrati, Phokion G. Kolaitis
FC
2009
Springer
134views Cryptology» more  FC 2009»
15 years 4 months ago
Cryptographic Combinatorial Securities Exchanges
Abstract. We present a useful new mechanism that facilitates the atomic exchange of many large baskets of securities in a combinatorial exchange. Cryptography prevents information ...
Christopher Thorpe, David C. Parkes
PODS
2009
ACM
86views Database» more  PODS 2009»
15 years 10 months ago
Reverse data exchange: coping with nulls
An inverse of a schema mapping M is intended to "undo" what M does, thus providing a way to perform "reverse" data exchange. In recent years, three different f...
Ronald Fagin, Phokion G. Kolaitis, Lucian Popa, Wa...
PODS
2008
ACM
165views Database» more  PODS 2008»
15 years 10 months ago
Data exchange and schema mappings in open and closed worlds
In the study of data exchange one usually assumes an openworld semantics, making it possible to extend instances of target schemas. An alternative closed-world semantics only move...
Leonid Libkin, Cristina Sirangelo