سند علمی

Google matrix analysis of directed networks

چکیده

In the past decade modern societies have developed enormous communication and social networks. Their classification and information retrieval processing has become a formidable task for the society. Due to the rapid growth of the World Wide Web, and social and communication networks, new mathematical methods have been invented to characterize the properties of these networks in a more detailed and precise way. Various search engines use extensively such methods. It is highly important to develop new tools to classify and rank massive amount of network information in a way that is adapted to internal network structures and characteristics. This review describes the Google matrix analysis of directed complex networks demonstrating its efficiency using various examples including World Wide Web, Wikipedia, software architectures, world trade, social and citation networks, brain neural networks, DNA sequences and Ulam networks. The analytical and numerical matrix methods used in this analysis originate from the fields of Markov chains, quantum chaos and Random Matrix theory.

اسناد مشابه

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    We study numerically the spectrum and eigenstate properties of the Google matrix of various examples of directed networks such as vocabulary networks of dictionaries and university World Wide Web networks. The spectra have gapless structure in the vicinity of the maximal eigenval

  • Google matrix analysis of C.elegans neural network

    سند علمی۲۰۱۳CoRRVivek Kandiah, Dima Shepelyansky

    We study the structural properties of the neural network of the C.elegans (worm) from a directed graph point of view. The Google matrix analysis is used to characterize the neuron connectivity structure and node classifications are discussed and compared with physiological proper

  • Inferring hidden causal relations between pathway members using reduced Google matrix of directed biological networks

    سند علمی۲۰۱۸PloS oneJosé Lages, Dima L Shepelyansky, Andrei Zinovyev

    Signaling pathways represent parts of the global biological molecular network which connects them into a seamless whole through complex direct and indirect (hidden) crosstalk whose structure can change during development or in pathological conditions. We suggest a novel methodolo

  • Analysis of world terror networks from the reduced Google matrix of Wikipedia

    سند علمی۲۰۱۷CoRRSamer El Zant, Klaus M. Frahm, Katia Jaffrès-Runser, Dima Shepelyansky

    We apply the reduced Google matrix method to analyse interactions between 95 terrorist groups and determine their relationships and influence on 64 world countries. This is done on the basis of the Google matrix of the English Wikipedia (2017) composed of 5 416 537 articles which

  • Google matrix and Ulam networks of intermittency maps

    سند علمی۲۰۱۰Physical review. E, Statistical, nonlinear, and soft matter physicsLeonardo Ermann, Dima Shepelyansky

    We study the properties of the Google matrix of an Ulam network generated by intermittency maps. This network is created by the Ulam method which gives a matrix approximant for the Perron-Frobenius operator of dynamical map. The spectral properties of eigenvalues and eigenvectors

  • Google matrix of the world network of economic activities

    سند علمی۲۰۱۵CoRRVivek Kandiah, H. Escaith, Dima Shepelyansky

    3 Opinions are personal and do not represent WTO's position Abstract. Using the new data from the OECD-WTO world network of economic activities we construct the Google matrix G of this directed network and perform its detailed analysis. The network contains 58 countries and 37 ac