Structural organization and scale-free properties in Chinese Phrase Networks  

作　　者：LIYong WEILuoxia NIUYi YINJunxun 

机构地区：[1]SchoolofElectronicandInformationEngineering,SouthChinaUniversityofTechnology,Guangzhou510640,China//DepartmentofComputerScienceandTechnology,DongguanUniversityofTechnology,Dongguan523106,China [2]DepartmentofComputerScienceandTechnology,DongguanUniversityofTechnology,Dongguan523106,China

出　　处：《Chinese Science Bulletin》2005年第13期1304-1308,共5页

摘　　要：Monkey language models are defined for Chi-nese Phrase Networks, and scale-free features of Chinese Phrase Networks are uncovered. It is pointed out that the ratio of average degree to the total number of nodes ( k /N ) is close to a constant. Simulation for the evolution of phrase networks indicates that one of the important reasons for power law distributions is the word selection frequency, which, when tuned aptly, can make the monkey language present similar statistic traits as that of natural languages. Power law tails emerge at large k, and the exponent is about 6. Comparison between monkey model and natural language shows that humans are able to use Chinese words resources in more effective and compact ways to express their inten-tions. All the results demonstrate an important fact that the least effort principle is the basis of Chinese Phrase Networks.Monkey language models are defined for Chinese Phrase Networks, andscale-free features of Chinese Phrase Networks are uncojered. It is pointed out that the ratio ofaverage degree to the total number of nodes (k IN ) is dose to a constant. Simulation for theevolution of phrase networks indicates that one of the important reasons for power law distributionsis the word selection frequency, which, when toned aptly, can make the monkey language presentsimilar statistic traits as that of natural languages. Power law tails emerge at large k, and theexponent is about 6. Comparison between monkey model and natural language shows that humans are ableto use Chinese words resources in more effective and compact ways to express their intentions. Allthe results demonstrate an important fact that the least effort principle is the basis of ChinesePhrase Networks.

关 键 词：综合网络 网络语言 自由度 程度分布 随机测试 中国 

分 类 号：H109.4[语言文字—汉语]