A new algorithm for a novel hash function, based on chaotic tent map with changeable parameter, is proposed and analyzed. The one dimensional and piecewise tent map with changeable parameters decided by the position i...A new algorithm for a novel hash function, based on chaotic tent map with changeable parameter, is proposed and analyzed. The one dimensional and piecewise tent map with changeable parameters decided by the position index of blocked messages is chosen, and blocked massages translated into ASCII code values are employed as the iteration time of the chaotic tent map. The final 128-bit hash value is generated by logical XOR operation on intermediate hash values. Theoretical analysis and computer simulation indicate that the proposed algorithm can satisfy the performance requirements of hash function.展开更多
This paper aims to offer an optimality-theoretic account of citation tones and tone sandhi in disyllabic sequences in Chengdu Dialect （CD henceforth）. It shows that the constraint ranking ＊[H,hl].T〉〉IDENT-LT〉〉 ...This paper aims to offer an optimality-theoretic account of citation tones and tone sandhi in disyllabic sequences in Chengdu Dialect （CD henceforth）. It shows that the constraint ranking ＊[H,hl].T〉〉IDENT-LT〉〉 ＊[H,lh],＊[L,1h]〉〉 IDENT-RT〉〉 ＊[H,hl] is able to account for the tone sandhi phenomena of disyllabic sequences in CD.展开更多
基金Supported by the National Natural Science Foundation of China （No. 61173178, 61003247, 61070246） and the Fundamental Research Funds for the Central University （No. COJER1018002,cdjerl018003）.
文摘A new algorithm for a novel hash function, based on chaotic tent map with changeable parameter, is proposed and analyzed. The one dimensional and piecewise tent map with changeable parameters decided by the position index of blocked messages is chosen, and blocked massages translated into ASCII code values are employed as the iteration time of the chaotic tent map. The final 128-bit hash value is generated by logical XOR operation on intermediate hash values. Theoretical analysis and computer simulation indicate that the proposed algorithm can satisfy the performance requirements of hash function.
文摘This paper aims to offer an optimality-theoretic account of citation tones and tone sandhi in disyllabic sequences in Chengdu Dialect （CD henceforth）. It shows that the constraint ranking ＊[H,hl].T〉〉IDENT-LT〉〉 ＊[H,lh],＊[L,1h]〉〉 IDENT-RT〉〉 ＊[H,hl] is able to account for the tone sandhi phenomena of disyllabic sequences in CD.
