Evaluate the collective function of references cited together in a given text segment.
Classify their combined role into one of the following categories: 'method', 'background', or 'result'.

Text:Two methods (based on Local Binary Patterns), which were previously reported as competitive in automated diagnosis of CD [11] were utilized in addition to state-of-the-art global mid-level image representations which are obtained by pooling local image descriptors.
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