Knowledge Networks: Structure and Dynamics

2009 ◽  
pp. 19-41 ◽  
Author(s):  
Pier Paolo Saviotti
Keyword(s):  
Knowledge Networks ◽  
Structure And Dynamics ◽  
Networks Structure

scholarly journals Explosive transitions in complex networks’ structure and dynamics: Percolation and synchronization

2016 ◽  
Vol 660 ◽  
pp. 1-94 ◽  
Author(s):  
S. Boccaletti ◽  
J.A. Almendral ◽  
S. Guan ◽  
I. Leyva ◽  
Z. Liu ◽  
...  
Keyword(s):  
Complex Networks ◽  
Structure And Dynamics ◽  
Networks Structure

Metabolic Networks, Structure and Dynamics

2013 ◽  
pp. 1263-1267
Author(s):  
Guilhem Chalancon ◽  
Kai Kruse ◽  
M. Madan Babu
Keyword(s):  
Metabolic Networks ◽  
Structure And Dynamics ◽  
Networks Structure

Impacts of malicious attacks on robustness of knowledge networks: a multi-agent-based simulation

2020 ◽  
Vol 24 (5) ◽  
pp. 1079-1106 ◽  
Author(s):  
Jianyu Zhao ◽  
Anzhi Bai ◽  
Xi Xi ◽  
Yining Huang ◽  
Shanshan Wang
Keyword(s):  
Knowledge Networks ◽  
Practical Significance ◽  
Dimensional Structure ◽  
Evolutionary Stage ◽  
Malicious Attacks ◽  
Network Efficiency ◽  
Content Type ◽  
Research Stream ◽  
Networks Structure ◽  
And Function

Purpose Malicious attacks extremely traumatize knowledge networks due to increasing interdependence among knowledge elements. Therefore, exposing the damage of malicious attacks to knowledge networks has important theoretical and practical significance. Despite the insights being offered by the growing research stream, few studies discuss the diverse responses of knowledge networks’ robustness to different target-attacks, and the authors lack sufficient knowledge of which forms of malicious attacks constitute greater disaster when knowledge networks evolve to different stages. Given the irreversible consequences of malicious attacks on knowledge networks, this paper aims to examine the impacts of different malicious attacks on the robustness of knowledge networks. Design/methodology/approach On the basic of dividing malicious attacks into six forms, the authors incorporate two important aspects of robustness of knowledge networks – structure and function – in a research framework, and use maximal connected sub-graphs and network efficiency, respectively, to measure structural and functional robustness. Furthermore, the authors conceptualize knowledge as a multi-dimensional structure to reflect the heterogeneous nature of knowledge elements, and design the fundamental rules of simulation. NetLogo is used to simulate the features of knowledge networks and their changes of robustness as they face different malicious attacks. Findings First, knowledge networks gradually form more associative integrated structures with evolutionary progress. Second, various properties of knowledge elements play diverse roles in mitigating damage from malicious attacks. Recalculated-degree-based attacks cause greater damage than degree-based attacks, and structure of knowledge networks has higher resilience against ability than function. Third, structural robustness is mainly affected by the potential combinatorial value of high-degree knowledge elements, and the combinatorial potential of high-out-degree knowledge elements. Forth, the number of high in-degree knowledge elements with heterogeneous contents, and the inverted U-sharp effect contributed by high out-degree knowledge elements are the main influencers of functional robustness. Research limitations/implications The authors use the frontier method to expose the detriments of malicious attacks both to structural and functional robustness in each evolutionary stage, and the authors reveal the relationship and effects of knowledge-based connections and knowledge combinatorial opportunities that contribute to maintaining them. Furthermore, the authors identify latent critical factors that may improve the structural and functional robustness of knowledge networks. Originality/value First, from the dynamic evolutionary perspective, the authors systematically examine structural and functional robustness to reveal the roles of the properties of knowledge element, and knowledge associations to maintain the robustness of knowledge networks. Second, the authors compare the damage of six forms of malicious attacks to identify the reasons for increased robustness vulnerability. Third, the authors construct the stock, power, expertise knowledge structure to overcome the difficulty of knowledge conceptualization. The results respond to multiple calls from different studies and extend the literature in multiple research domains.

scholarly journals Complex networks: Structure and dynamics

2006 ◽  
Vol 424 (4-5) ◽  
pp. 175-308 ◽  
Author(s):  
S BOCCALETTI ◽  
V LATORA ◽  
Y MORENO ◽  
M CHAVEZ ◽  
D HWANG
Keyword(s):  
Complex Networks ◽  
Structure And Dynamics ◽  
Networks Structure

scholarly journals Editors’ introduction to spatial knowledge networks: structure, driving forces and innovative performances

2014 ◽  
Vol 53 (2) ◽  
pp. 315-323 ◽  
Author(s):  
Corinne Autant-Bernard ◽  
Nadine Massard ◽  
Robin Cowan
Keyword(s):  
Driving Forces ◽  
Spatial Knowledge ◽  
Knowledge Networks ◽  
Networks Structure

scholarly journals Semantic Networks: Structure and Dynamics

Entropy ◽  
2010 ◽  
Vol 12 (5) ◽  
pp. 1264-1302 ◽  
Author(s):  
Javier Borge-Holthoefer ◽  
Alex Arenas
Keyword(s):  
Semantic Networks ◽  
Structure And Dynamics ◽  
Networks Structure
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