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142
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ICEIS
2003
IEEE
15 years 11 months ago
2003
IEEE
: Horizontal fragments of a class in an object-oriented database system contain subsets of the class extent or instance objects. These fragments are created with a set of system in...
175
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IRAL
2003
ACM
15 years 11 months ago
2003
ACM
In business, the retrieval of up-to-date, or fresh, information is very important. It is difficult for conventional search engines based on a centralized architecture to retrieve ...
116
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ERCIMDL
2003
Springer
15 years 11 months ago
2003
Springer
This article presents a study of online digital library (DL) uses, based on three data sources (online questionnaire, Internet traffic data and interviews). We show that DL users d...
162
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WEBI
2001
Springer
15 years 10 months ago
2001
Springer
Abstract. Conversational agents interact with users using natural language interface. Especially in Internet space, their role has been recently highlighted as a virtual representa...
131
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SIGMOD
2000
ACM
15 years 10 months ago
2000
ACM
In this paper we study how to refresh a local copy of an autonomous data source to maintain the copy up-to-date. As the size of the data grows, it becomes more difficult to mainta...