系统工程理论与实践
繫統工程理論與實踐
계통공정이론여실천
Systems Engineering—Theory & Practice
2010年
10期
1883~1890
,共null页
吴渝 肖开洲 刘洪涛 唐红
吳渝 肖開洲 劉洪濤 唐紅
오투 초개주 류홍도 당홍
复杂网络 虚拟社区 度分布 幂指数 结构熵
複雜網絡 虛擬社區 度分佈 冪指數 結構熵
복잡망락 허의사구 도분포 멱지수 결구적
complex network; virtual community; degree distribution; power-law index; structural entropy
结合复杂网络理论对BBS中虚拟社区网络的演化规律进行了研究.首先,通过BBS版块的数据信息构建有向虚拟社区网络,研究了网络拓扑结构特性的演化,包括新增结点数和边数、度分布的幂指数、网络结构熵等随时间变化的规律,发现网络从"有序"到"无序"再到"稳定有序"的变化过程,并且在此类社区网络中存在富人俱乐部现象.然后,基于BBS版块虚拟社区的演化规律,提出了一种虚拟社区网络构造模型.该模型方法的仿真结果与真实虚拟社区网络演化特性相符,在一定程度上能解释虚拟社区的演化规律,具有很强的实际意义.
結閤複雜網絡理論對BBS中虛擬社區網絡的縯化規律進行瞭研究.首先,通過BBS版塊的數據信息構建有嚮虛擬社區網絡,研究瞭網絡拓撲結構特性的縯化,包括新增結點數和邊數、度分佈的冪指數、網絡結構熵等隨時間變化的規律,髮現網絡從"有序"到"無序"再到"穩定有序"的變化過程,併且在此類社區網絡中存在富人俱樂部現象.然後,基于BBS版塊虛擬社區的縯化規律,提齣瞭一種虛擬社區網絡構造模型.該模型方法的倣真結果與真實虛擬社區網絡縯化特性相符,在一定程度上能解釋虛擬社區的縯化規律,具有很彊的實際意義.
결합복잡망락이론대BBS중허의사구망락적연화규률진행료연구.수선,통과BBS판괴적수거신식구건유향허의사구망락,연구료망락탁복결구특성적연화,포괄신증결점수화변수、도분포적멱지수、망락결구적등수시간변화적규률,발현망락종"유서"도"무서"재도"은정유서"적변화과정,병차재차류사구망락중존재부인구악부현상.연후,기우BBS판괴허의사구적연화규률,제출료일충허의사구망락구조모형.해모형방법적방진결과여진실허의사구망락연화특성상부,재일정정도상능해석허의사구적연화규률,구유흔강적실제의의.
Since complex networks have been extensively studied,we introduced the complex network theory to study the virtual community network evolution of the BBS.Firstly,we built the directed virtual community network through data information in BBS plate,and then studied the evolution of network topology characteristics with time,including the addition of the number of nodes and edges,power-law index of network's degree distribution and network's structural entropy.We discovered that evolution process of the network is from "orderly" to "disorderly" and then to "stable and orderly" state,and the existence of rich-club phenomenon in the community network.Then,based on evolution of virtual communities in the BBS plate,we proposed a virtual community network construction model.Simulation results show that its performance is similar to that of the virtual community network in BBS,which can explain the evolution of virtual communities to some extent,and is consequently of strong practical significance.