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A framework to represent and compute two-loop $N$-point Feynman diagrams asdouble-integrals is discussed. The integrands are 'generalised one-loop type"multi-point functions multiplied by simple weighting factors. The finalintegrations over these two variables are to be performed numerically, whereasthe ingredients involved in the integrands, in particular the "generalisedone-loop type" functions, are computed analytically. The idea is illustrated ona few examples of scalar three- and four-point functions.

Framework for a novel mixed analytical/numerical approach for the computation of two-loop $N$-point Feynman diagrams