Search results for "Adaptive systems"
showing 10 items of 14 documents
Biological Peer-To-Peer Networks: From Bacterial Communication To The Development Of Synthetic Distributed Systems
2014
We address Bacterial Computing from the study of bacterial communication mechanisms, by assuming a conceptual framework between Computer Science and Biology in which cells are conceived as nodes. This nodes process information through modules formed of DNA as encoded software (biobricks) and are connected to other nodes. In order to understand how peerto-peer mechanisms operate in bacteria, we have studied Quorum sensing and Conjugation with an engineering perspective. Learning how cells process and exchange information we try to glimpse new theoretical approaches to develop synthetic networks and to transfer complex algorithms to natural environments. Extending bacterial communications we …
A Bacterial-Based Algorithm to Simulate Complex Adaptative Systems
2014
Paper presented at the 13th International Conference on Simulation of Adaptive Behavior which took place at Castellón, Spain in 2014, July 22-25. Bacteria have demonstrated an amazing capacity to overcome envi-ronmental changes by collective adaptation through genetic exchanges. Using a distributed communication system and sharing individual strategies, bacteria propagate mutations as innovations that allow them to survive in different envi-ronments. In this paper we present an agent-based model which is inspired by bacterial conjugation of DNA plasmids. In our approach, agents with bounded rationality interact in a common environment guided by local rules, leading to Complex Adaptive Syste…
Modelling complex dynamics and distributed generation of knowledge with bacterial-based algorithms
2014
Este estudio tuvo como objetivo demostrar que las sociedades conectadas y heterogéneas con intercambios entre pares (P2P) son más resilientes que las centralizadas y homogéneas. En el modelado basado en agentes, se modelizan agentes con racionalidad limitada que interactúan en un entorno común guiado por reglas locales, lo que lleva a Sistemas Adaptativos Complejos (CAS) que se denominan 'sociedades artificiales'. Estos modelos simplificados de sociedades humanas crecen de abajo hacia arriba en entornos computacionales y pueden utilizarse como un laboratorio para probar algunas hipótesis. Hemos demostrado que en un modelo basado en interacciones libres entre agentes autónomos, los resultado…
Dual Capability EAM for Agility in Business Capability Building : A Systems Theoretical View
2021
Through two cases of IT-enabled business capability building in large enterprises, this paper elucidates how the systems theory approach can explain the enterprise architecture management (EAM) challenge to support business agility. The observation in both of these cases is that a legacy EAM approach does not adapt to a business development scenario involving agility. This leads to a study of the nature of the challenges in EAM when enabling strategic business moves involving new technologies, at the business unit level. For the type of projects as in these cases, we do not find a fitting paradigm in the EAM literature. Suggested solutions are IT bimodality, or Two Speed IT. However, its co…
E-heutagogy for lifelong e-learning
2012
Abstract The paper aims to introduce a new concept: e-heutagogy. This aim is approached through two sub-objectives:a) Giving the rationale for the new concept of e-heutagogy.b) Outlining the features of e-heutagogy necessary for lifelong e-learning.Why do we need a new concept? Learning is a complex concept and it is a part of our entire life. Today we can speak about new generations of learners at all levels, from kindergarten to university, not only due to technology but also due to rapid changes in open, heterogeneous, dynamic and uncertain environments.Taking into account that heutagogy is appropriate to the needs of learners but learners are most of their life without their teachers an…
Neural based MRAS sensorless techniques for high performance linear induction motor drives.
2010
This paper proposes a neural based MRAS (Model reference Adaptive System) speed observer suited for linear induction motors (LIM). Starting from the dynamical equation of the LIM in the synchronous reference frame in literature, the so-called voltage and current models of the LIM in the stationary reference frame, taking into consideration the end effects, have been deduced. Then, while the inductor equations have been used as reference model of the MRAS observer, the induced part equations have been discretized and rearranged so to be represented by a linear neural network (ADALINE). On this basis, the so called TLS EXIN neuron has been used to compute on-line, in recursive form, the machi…
A Complex Adaptive System Framework for Management and Marketing Studies
2015
This theoretical work aims to analyze the choice of strategicmanagement activities, taking into account a complex systems perspective. Following this approach, we represent the firm as a complex adaptive system, in which the management must be able to develop and implement different behaviors in order to dynamically ensure the viability of the firm or system. This implies that the management governing the firm or system is capable of choosing, from among a number of heterogeneous entities, the relevant stakeholders within the competitive context and of creating and maintaining significant relationships with them, which are considered to be relevant in a turbulent environment. As an expressi…
Place brand as an emergent property: The case of Vascitour and Naples
2019
In this paper, by adopting a systemic framework, we argue that place's adaptive connotation be considered as a mere result of endogenous processes but as a viable system that will remain viable if it can continue to answer the needs of its numerous heterogeneous internal and external socio-economic agents. Place can be seen as a complex adaptive system characterized by a more or less planned evolution, driven by both top-down and bottom-up processes, and composed of various interconnecting parts that, at the same time, can be seen as wholes at different levels as an holoarchy. The model of the holoarchy allows to consider the place as the result of both planned and spontaneous relationships…
Place Marketing and Management: A Complex Adaptive Systems View. The Strategic Planning of the City of Avellino, Italy
2016
The objective of this work is to contribute to place management and marketing studies by looking at the territory, as a complex adaptive system aiming to reach a dynamic equilibrium—a steady state. According to this approach, the territorial system emerges as a result of its capacity, its social actors and governance, and the analysis, creation and maintenance of relationships—the dynamics—between the territory components, both tangible and intangible ones, and its many and varied stakeholders. These relational dynamics produce continuous and reciprocal adaptive behaviours among social actors who determine, influence, and adapt the vision of the territory. Through an interdisciplinary appro…
Adaptive feedback linearizing control of linear induction motor considering the end-effects
2016
This paper proposes an input-output feedback linearization techniques for linear induction motors, taking into consideration the dynamic end-effects. As a main original content, this work proposes a new control law based on the on-line estimation of the induced-part time constant. The estimation law is obtained thanks to a Lyapunov based analysis and thus the stability of the entire control system, including the estimation algorithm, is intrinsically guaranteed. Moreover, with such an approach even the on-lihe variation of the induced-part time constant with the speed is retrieved, thus improving the behavior of previously developed approaches where such a variation vs. speed is considered …