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We present an image set classification algorithm based on unsupervised clustering of labeled training and unla-beled test data where labels are only used in the stopping criterion .
 unsupervised clustering, image set classification algorithm; labeled training and unla-beled test data, unsupervised clustering
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
Answer:
 unsupervised clustering, image set classification algorithm; labeled training and unla-beled test data, unsupervised clustering