“…As a summary, there are variety of approaches of negotiation knowledge discovery such as case-based reasoning [3], fuzzy rules [6], time series approximation [24], Bayesian learning [5,40], Markov Chain Process [25], evolutionary learning [19], constraint satisfaction [38], etc. Generally speaking, these learning approaches can be classified into the broad categories of parametric [3,19,24] or non-parametric methods [5,25,40].…”