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:We compare our results with regular Gibbs sampling (Gibbs) and the approach proposed in Venugopal and Gogate [30] (cgibbs), where they use clustering algorithms such as KMeans to derive an approximate MLN and then sample this MLN using regular Gibbs sampling.
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