518 search results - page 82 / 104 » Advanced Question and Answering Systems for Community Develo... |
CCS
2007
ACM
13 years 11 months ago
2007
ACM
Administrative RBAC (ARBAC) policies specify how Role-Based Access Control (RBAC) policies may be changed by each administrator. It is often difficult to fully understand the effe...
SIGIR
2008
ACM
13 years 7 months ago
2008
ACM
Evaluation measures act as objective functions to be optimized by information retrieval systems. Such objective functions must accurately reflect user requirements, particularly w...
TLSDKCS
2010
13 years 2 months ago
2010
Abstract. With increasing volumes of data, much effort has been devoted to finding the most suitable answer to an information need. However, in many domains, the question whether a...
CIKM
2008
Springer
13 years 9 months ago
2008
Springer
I report briefly on some of my own work in each of these areas and elucidate some of the questions that this research has raised. Then I propose as a research agenda the developme...
PVLDB
2008
13 years 6 months ago
2008
Data integration systems often provide a uniform query interface, called a mediated schema, to a multitude of data sources. To answer user queries, such systems employ a set of se...