306 search results - page 58 / 62 » Quality in Use Model for Web Portals (QiUWeP) |
SIGMETRICS
2000
ACM
13 years 7 months ago
2000
ACM
Quality of service of e-commerce sites has been usually managed by the allocation of resources such as processors, disks, and network bandwidth, and by tracking conventional perfo...
WWW
2006
ACM
14 years 8 months ago
2006
ACM
We introduce the notion of query substitution, that is, generating a new query to replace a user's original search query. Our technique uses modifications based on typical su...
WINE
2009
Springer
14 years 2 months ago
2009
Springer
Sponsored search auction is used by most search engines to select ads to display on the web page of a search result, according to advertisers’ bidding prices. The income of this ...
EFDBS
2003
13 years 8 months ago
2003
A definition of types in an information system is given from ld abstractions through data constructs, schema and definitions to physical data values. Category theory suggests tha...
WSDM
2010
ACM
14 years 4 months ago
2010
ACM
We consider a set of views stating possibly conflicting facts. Negative facts in the views may come, e.g., from functional dependencies in the underlying database schema. We want ...