How Caching Improves Efficiency and Result Completeness for Querying Linked Data

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Provided by: RWTH Aachen University
Topic: Data Management
Format: PDF
Link traversal based query execution is a novel query approach which enables applications that exploit the Web of data to its full potential. This approach makes use of the characteristics of linked data: during query execution it traverses data links to discover data that may contribute to query results. Once retrieved from the Web, the data can be cached and reused for subsequent queries. The authors expect such a reuse to be beneficial for two reasons: first, it may improve query performance because it reduces the need to retrieve data multiple times; second, it may provide for additional query results, calculated based on cached data that would not be discoverable by a link traversal based execution alone.
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