5984 search results - page 1171 / 1197 » The Informal Nature of Systems Engineering |
WWW
2009
ACM
14 years 9 months ago
2009
ACM
Ad auctions in sponsored search support"broad match"that allows an advertiser to target a large number of queries while bidding only on a limited number. While giving mo...
PODS
2009
ACM
14 years 9 months ago
2009
ACM
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...
PODS
2009
ACM
14 years 9 months ago
2009
ACM
Database technology is playing an increasingly important role in understanding and solving large-scale and complex scientific and societal problems and phenomena, for instance, un...
PODS
2008
ACM
14 years 8 months ago
2008
ACM
A schema mapping is a high-level specification that describes the relationship between two database schemas. As schema mappings constitute the essential building blocks of data ex...
MOBIHOC
2003
ACM
14 years 8 months ago
2003
ACM
Wireless sensor networks (WSN) are event based systems that rely on the collective effort of several microsensor nodes. Reliable event detection at the sink is based on collective...