Abstract
Cloud infrastructures enable the efficient parallel execution of data-intensive tasks such as entity resolution on large datasets. We investigate challenges and possible solutions of using the MapReduce programming model for parallel entity resolution using Sorting Neighborhood blocking (SN). We propose and evaluate two efficient MapReduce-based implementations for single- and multi-pass SN that either use multiple MapReduce jobs or apply a tailored data replication. We also propose an automatic data partitioning approach for multi-pass SN to achieve load balancing. Our evaluation based on real-world datasets shows the high efficiency and effectiveness of the proposed approaches.
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