2235 search results - page 140 / 447 » Quality of Service and Optimization in Data Integration Syst... |
139
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ICIP
2001
IEEE
16 years 8 months ago
2001
IEEE
Pre-processing algorithms improve the quality of a compression system by removing unimportant data before encoding. This enhances both the visual quality and coding efficiency of ...
162
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IQIS
2004
ACM
15 years 12 months ago
2004
ACM
Data freshness has been identified as one of the most important data quality attributes in information systems. This importance increases particularly in the context of distribute...
168
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ACMICEC
2008
ACM
15 years 8 months ago
2008
ACM
In this paper, we studied the semantic consistency maintenance issue between heterogeneous contexts, that is, how a firm business process of one e-marketplace can be transformed t...
171
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ETRICS
2006
15 years 10 months ago
2006
Abstract. Depending on whether the users or the providers are performing it, Identity Management (IM) traditionally has different meanings. For users, IM means to choose between on...
191
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ICDE
2005
IEEE
16 years 2 days ago
2005
IEEE
Current federated systems deploy cost-based query optimization mechanisms; i.e., the optimizer selects a global query plan with the lowest cost to execute. Thus, cost functions in...