Object clustering methods, ensemble clustering methods, data processing apparatuses, and articles of manufacture are described according to some aspects. In one aspect, an object clustering method includes accessing a plurality of respective cluster results of a plurality of different clustering solutions, wherein the cluster results of an individual one of the different clustering solutions associate a plurality of objects with a plurality of respective first clusters and indicate probabilities of the objects being correctly associated with the respective ones of the first clusters of the respective individual clustering solution, and using the cluster results including the associations of the objects and the first clusters of the respective different clustering solutions and the probabilities of the objects being correctly associated with the respective first clusters of the respective different clustering solutions, generating additional associations of the objects with a plurality of second clusters and wherein the additional associations comprise additional cluster results of an additional clustering solution.
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