How do new scientific ideas diffuse? Computational studies reveal how network structures facilitate or obstruct diffusion; qualitative demonstrate that diffusion entails the continuous translation and transformation of ideas. This article bridges these computational approaches to study as a complex process adaptation. As case study, we analyze spread Granovetter's Strength Weak Ties hypothesis,...

Abstract This investigation examines the question of whether similar theories origins monarchy encountered in certain early Greek and Indian literary sources should be taken as evidence cross-cultural diffusion political ideas. The paper argues against alternative explanation, according to which similarity form versions kingship theory is rooted social processes, by exposing how earliest extant...

Purpose – The assumption of ecological thinking as a main ideology for social systems implies many relevant changes concerning the relation between social and ecological systems. Changes meaning a deep redefinition of goals and strategies pursued for centuries by human communities, like the uncertainty reduction in relation to resources’ availability and management, defence respect to variance ...

In this paper we present a stochastic version of Willems’ ideas on Dissipativity and generalize the dissipation inequality to Markov Diffusion Processes.We show the relevance of these ideas by examining the problem of Ergodic Control of partially observed diffusions. A. Rantzer, C.I. Byrnes (Eds.): Directions in Mathematical Systems Theory and Optimization, LNCIS 286, pp. 41-49, 2003. Springer-...

In this paper we present new ideas to accelerate the computation of the eigenvector of the transition matrix associated to the PageRank algorithm. New ideas are based on the decomposition of the matrix-vector product that can be seen as a fluid diffusion model, associated to new algebraic equations. We show through experimentations on synthetic data and on real data-sets how much this approach ...

We model ‘new ideas’ production in a panel of 17 emerging countries. Our results reveal: (i) ideas production is duplicative, (ii) externality associated with domestic knowledge stocks is of above unit factor proportionality, (iii) OECD countries raise the innovation-bar for emerging countries, (iv) there is no significant knowledge diffusion across emerging countries, and (v) growth in emergin...

Ideas from probability can be very useful to understand and motivate fractional calculus models for anomalous diffusion. Fractional derivatives in space are related to long particle jumps. Fractional time derivatives code particle sticking and trapping. This probabilistic point of view also leads to some interesting extensions, including vector fractional derivatives, and tempered fractional de...