Nowadays,virtual human(VH) is becoming a hot research topic in virtualization.VH dialogue can be categorized as an application of natural language processing(NLP) technology,since it is relational to question and answ...Nowadays,virtual human(VH) is becoming a hot research topic in virtualization.VH dialogue can be categorized as an application of natural language processing(NLP) technology,since it is relational to question and answering(QA) technologies.In order to integrate these technologies,this paper reviews some important work on VH dialogue,and predicts some research points on the view of QA technologies.展开更多
We investigate the evolution of cooperation with evolutionary public goods games based on finite populations, where four pure strategies:cooperators,defectors,punishers and loners who are unwilling to participate are ...We investigate the evolution of cooperation with evolutionary public goods games based on finite populations, where four pure strategies:cooperators,defectors,punishers and loners who are unwilling to participate are considered.By adopting approximate best response dynamics,we show that the magnitude of rationality not only quantitatively explains the experiment results in[Nature(London) 425(2003) 390],but also it will heavily influence the evolution of cooperation.Compared with previous results of infinite populations,which result in two equilibriums, we show that there merely exists a special equilibrium and the relevant high value of bounded rationality will sustain cooperation.In addition,we characterize that loner’s payoff plays an active role in the maintenance of cooperation, which will only be warranted for the low and moderate values of loner’s payoff.It thus indicates the effects of rationality and loner’s payoff will influence the cooperation.Finally,we highlight the important result that the introduction of voluntary participation and punishment will facilitate cooperation greatly.展开更多
基金National Nature Science Foundations of China(Nos.61170027,61202169,and 61301140)Tianjin"131"Creative Talents Training Project,China(the 3rd level)
文摘Nowadays,virtual human(VH) is becoming a hot research topic in virtualization.VH dialogue can be categorized as an application of natural language processing(NLP) technology,since it is relational to question and answering(QA) technologies.In order to integrate these technologies,this paper reviews some important work on VH dialogue,and predicts some research points on the view of QA technologies.
基金Supported by National Nature Science Foundation under Grant No.60904063the Tianjin municipal Natural Science Foundation under Grant Nos.11JCYBJC06600,11ZCKF6X00900,11ZCKFGX00900
文摘We investigate the evolution of cooperation with evolutionary public goods games based on finite populations, where four pure strategies:cooperators,defectors,punishers and loners who are unwilling to participate are considered.By adopting approximate best response dynamics,we show that the magnitude of rationality not only quantitatively explains the experiment results in[Nature(London) 425(2003) 390],but also it will heavily influence the evolution of cooperation.Compared with previous results of infinite populations,which result in two equilibriums, we show that there merely exists a special equilibrium and the relevant high value of bounded rationality will sustain cooperation.In addition,we characterize that loner’s payoff plays an active role in the maintenance of cooperation, which will only be warranted for the low and moderate values of loner’s payoff.It thus indicates the effects of rationality and loner’s payoff will influence the cooperation.Finally,we highlight the important result that the introduction of voluntary participation and punishment will facilitate cooperation greatly.
