19 search results - page 4 / 4 » Online Assessment of SQL Query Formulation Skills |
JAIR
2010
14 years 9 months ago
2010
Online offerings such as web search, news portals, and e-commerce applications face the challenge of providing high-quality service to a large, heterogeneous user base. Recent eff...
CCS
2007
ACM
15 years 5 months 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 ...
101
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AAAI
2008
15 years 1 months ago
2008
Online services such as web search, news portals, and ecommerce applications face the challenge of providing highquality experiences to a large, heterogeneous user base. Recent ef...
105
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WSDM
2012
ACM
13 years 6 months ago
2012
ACM
Many vertical search tasks such as local search focus on specific domains. The meaning of relevance in these verticals is domain-specific and usually consists of multiple well-d...