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- W2127856300 abstract "Because of the heterogeneous nature of different data sources, data integration is often one of the most challenging tasks in managing modern information systems. While the existing literature has focused on problems such as schema integration and entity identification, it has largely overlooked a basic question: When an attribute value for a real-world entity is recorded differently in different databases, how should the “best” value be chosen from the set of possible values? This paper provides an answer to this question. We first show how a probability distribution over a set of possible values can be derived. We then demonstrate how these probabilities can be used to solve a given decision problem by minimizing the total cost of type I, type II, and misrepresentation errors. Finally, we propose a framework for integrating multiple data sources when a single “best” value has to be chosen and stored for every attribute of an entity." @default.
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- W2127856300 date "2007-12-01" @default.
- W2127856300 modified "2023-09-23" @default.
- W2127856300 title "A Framework for Reconciling Attribute Values from Multiple Data Sources" @default.
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- W2127856300 doi "https://doi.org/10.1287/mnsc.1070.0745" @default.
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