Banca de DEFESA: RUTE MELO DE OLIVEIRA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : RUTE MELO DE OLIVEIRA
DATA : 02/03/2019
HORA: 10:00
LOCAL: Auditório do DFTE
TÍTULO:

Preferential Attachment in Network: Dissimilarity Model

PALAVRAS-CHAVES:

Graph Theory, Complex Networks, Scale-Free Networks, Power-laws, Preferential Attachment

PÁGINAS: 84
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Física
RESUMO:

 Many systems can be represented by complex networks once that they are characterized by
several constituents interacting with each other. Because that, the study of the networks has become very popular in the scientific community, in the different areas of research. Seeking to understand the behavior of some real systems, many models were proposed. In this work, we elaborate and discuss a complex dynamic network model, based on the Bianconi-Barabasi model. We changed the preferential attachment rule by inserting a factor representing a dissimilarity between the sites. The dissimilarity factor informs us about the differences between the fitness parameter. Our model is represented by the following preferential attachment rule: Πi= (|ηi-ηj|ki)\(Σ|ηi-ηj|kj). In this way, two factors are responsible by the competition for links: (i) connectivity, the most connected sites are favorable to receive more connections, and (ii) dissimilarity, sites with different fitness are more likely to establish connections. We numerically computed, the connectivity distribution of the network P(k), the connectivity temporal evolution of the sites and others intrinsic properties in the study of networks. An interesting result studied was the degree distribution entropy, which revealed invariant by the network's size, as expected, however, changes with m (number of links at each step of time).

MEMBROS DA BANCA:
Presidente - 6346140 - LUCIANO RODRIGUES DA SILVA
Interno - 1672854 - RAIMUNDO SILVA JUNIOR
Externo à Instituição - SAMURAÍ GOMES DE AGUIAR BRITO - UFRN