[ALPS-users] The meaning of the 'TruncatedWeight' in ALPS MPS simulation

Dear ALPS users, The ALPS MPS code can print 'TruncatedWeight' to estimate the error of the simulation. I have a question: What is the meaning of this quantity and the relation with the truncation error in traditional DMRG simulation? For Fig. 5 in Computer Physics Communications, 185(12):3430 – 3440, 2014., the quantity may be summed as the final truncation error after a sweep. Thanks a lot! Best regards, Rongyang Sun