May you please help me how I can choose uniformly a number from a range. I have to use this for trust evaluation in social networks such as the following clause:
Each user has a quality measurement qi ∈ [0, 1]. For the experiments in this paper, the quality of a user is chosen from a normal distribution. For any pair of users, i and j, the trust rating from node i to node j, denoted as T (i, j), is uniformly chosen from [max(qj − δij, 0), min(qj + δij, 1)]. In addition, δij = (1 − qi)/2 is a noise parameter that determines how accurate users are at estimating the quality of the user that they are trusting
Any of the common programming languages has such a function build in, otherwise you can google it and there are some websites that provide for you.