It has long been established that there is a correlation between dialog behavior of a discourse participant and how influential he or she is perceived to be by the other discourse participants (Bales et al., 1951;Scherer, 1979;Brook and Ng, 1986;Ng et al., 1993Ng et al., , 1995.
factors such as frequency of contribution, proportion of turns, and number of successful interruptions have been identified as being important indicators of influence.