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226
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ER
2001
Springer
15 years 11 months ago
2001
Springer
Abstract. Conceptual models are formal descriptions of application domains that are used in early stages of system development to support requirements analysis. The Unified Modeli...
177
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ER
2001
Springer
15 years 11 months ago
2001
Springer
Electronic commerce (e-commerce) covers a wide range of business transactions. Usually, a transactions includes products, i.e. goods or services. Often, e-commerce websites are int...
180
Voted
VLDB
2001
ACM
15 years 11 months ago
2001
ACM
Queries navigate semistructured data via path expressions, and can be accelerated using an index. Our solution encodes paths as strings, and inserts those strings into a special i...
226
Voted
VLDB
2001
ACM
15 years 11 months ago
2001
ACM
ct Information Integration is among the most important fields in information management. The problem of integrating data from diverse, possibly heterogeneous data sources is ubiqu...
227
Voted
IUI
2000
ACM
15 years 11 months ago
2000
ACM
The ability to deliver appropriate information to learners at the most appropriate time is an essential component of good instruction. In the best learning environments, this info...