5638 search results - page 972 / 1128 » On presence |
198
click to vote
BIOWIRE
2007
Springer
16 years 21 days ago
2007
Springer
Vehicular sensor networks (VSNs) provide a collaborative sensing environment where mobile vehicles equipped with sensors of different nature (from chemical detectors to still/video...
173
click to vote
CCS
2007
ACM
16 years 21 days ago
2007
ACM
In this paper, we study the maintenance of role-based access control (RBAC) models in database environments using transitive closure relations. In particular, the algorithms that ...
168
click to vote
CIKM
2007
Springer
16 years 21 days ago
2007
Springer
Pseudo-relevance feedback, or query expansion, has been shown to improve retrieval performance in the adhoc retrieval task. In such a scenario, a few top-ranked documents are assu...
181
click to vote
CIVR
2007
Springer
16 years 21 days ago
2007
Springer
Among the vast numbers of images on the web are many duplicates and near-duplicates, that is, variants derived from the same original image. Such near-duplicates appear in many we...
203
click to vote
CLEF
2007
Springer
16 years 21 days ago
2007
Springer
We describe cross language retrieval experiments using Amharic queries and English language document collection from our participation in the bilingual ad hoc track at the CLEF 20...