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Article
Publication date: 1 June 1997

Akhilesh Chandra, Brij M. Lall and Philip H. Siegel

This paper explores the role of neural networks for decision making in dynamic environments which are characterized by risks and uncertainties, and also provides experimental…

72

Abstract

This paper explores the role of neural networks for decision making in dynamic environments which are characterized by risks and uncertainties, and also provides experimental evidence from a simulated data. Theoretical support is derived from theories of affective balance, and self‐organized criticality. The simulation is conducted for a two‐person‐constant sum game. The findings of the experiment are helpful in extending to managerial decision making which involves varying degrees of uncertainties. Such decisions are affected by forces both internal and external to the company, and making judgments in such a fuzzy future is highly probabilistic. It is suggested, therefore that neural networks are better able to capture the interactive dynamics of variables operating in a managerial decision environment. In sum, the findings indicate that decisions in general and business decisions in particular can greatly benefit from the parallel computational capabilities of neural networks.

Details

Managerial Finance, vol. 23 no. 6
Type: Research Article
ISSN: 0307-4358

Article
Publication date: 1 March 2004

Akhilesh Chandra and Alan Reinstein

The theory of self‐organized criticality (SOC) suggests that interdependencies and interactions among components of a system cause the system to perpetually organize itself…

Abstract

The theory of self‐organized criticality (SOC) suggests that interdependencies and interactions among components of a system cause the system to perpetually organize itself towards a critical state. A small change in the value of any component of the system can affect the entire system (like a domino effect). Using SOC theory, we develop hypotheses to associate changes in a firm's production level and its stock prices. Change in performance and stock prices is theorized to vary positively with change in production below the critical level of production (called sub‐critical production), and vary negatively above the critical level of production (called supra‐critical production). Increasing (decreasing) economies of scale operate during sub (supra) critical levels of production. Change in production level from either the sub‐critical or supra‐critical level is posited to take the firm towards the critical production level. There are two reasons to investigate changes in production level: first, prior market research has not fully explained changes in stock prices, and, second, production (as modeled in microeconomic theory as a system of interacting input factors) provides an appealing case to investigate its SOC character. If presence of SOC‐like behavior for production process is observed, then statistical properties of critical states of production can be studied to provide better prediction abilities. Market evaluations of production‐related changes imply that change in production is a fundamental economic triggering process that can explain variations in stock prices. The results, based on analyzing 40 quarters of data, generally support the hypotheses that change in stock prices are associated with changes in production level, and that stock prices fall (rise) when the firm operates in supra (sub) critical production levels.

Details

Review of Accounting and Finance, vol. 3 no. 3
Type: Research Article
ISSN: 1475-7702

Book part
Publication date: 22 November 2012

Akie Iriyama, Jason W. Park, Franky Supriyadi and Haibin Yang

Mergers and acquisitions (M&As) typically accelerate target top management team (TMT) executive departures. Market discipline and Relative Standing are two major and competing…

Abstract

Mergers and acquisitions (M&As) typically accelerate target top management team (TMT) executive departures. Market discipline and Relative Standing are two major and competing economic and sociological explanations for this phenomenon which lack a satisfactory theoretical integration. To fill this gap in the literature, we model the M&A market as a complex adaptive system composed of TMTs which rid themselves of executives via self-organized critical processes, generating M&A market-level properties that are emergent, or not easily explained with reference to the individual TMTs. The observation of an emergent power law distribution in target TMT executive retention rates for M&A activities in the United States supports our interpretation.

Article
Publication date: 4 September 2009

Luke Tredinnick

This paper aims to explore the influence of complexity theory on the development of the web. It seeks to critique the role of complexity theory as a governing metaphor in the…

1748

Abstract

Purpose

This paper aims to explore the influence of complexity theory on the development of the web. It seeks to critique the role of complexity theory as a governing metaphor in the discourse of the web, and to examine whether complexity theory is able to provide an adequate description of the web, and its relationship to society and knowledge.

Design/methodology/approach

The paper is a critial review.

Findings

The paper establishes the influence of complexity in the discourse of the web and questions the adequacy of complexity theory to provide a description of the web and its relationship to cognition and society.

Originality/value

This paper explores the influence of a single concept (complexity theory) on the discourse and development of the web.

Details

Journal of Documentation, vol. 65 no. 5
Type: Research Article
ISSN: 0022-0418

Keywords

Article
Publication date: 14 May 2020

Martin Neumann

The article examines strategies of human resource management in the absence of institutional hedging by norm-enforcing institutions such as a state monopoly of violence by using…

494

Abstract

Purpose

The article examines strategies of human resource management in the absence of institutional hedging by norm-enforcing institutions such as a state monopoly of violence by using case studies of criminal organizations. This condition provides a test-bed for studying the effects of human relations management strategies on organizational performance.

Design/methodology/approach

For this purpose, a case study methodology is applied. Three cases are selected to build a scale from complete plasticity of an undifferentiated network via a status differentiated gang to a hierarchical organization that provides social positions. The case studies are analysed by qualitative content analysis, network analysis and agent-based simulation.

Findings

An undifferentiated network based on informal trust lacks mechanisms for conflict resolution. This is a highly vulnerable organizational structure. While a status differentiated gang is more resilient towards internal conflicts, its activities remain dependent on individually accumulated social capital. This organizational structure is not resilient over generations of actors. A hierarchical organization provides highest degree of structural resilience up to a level of a system of self-organized criticality.

Originality/value

The study of human relations management outside the legal world provides insights into the basic mechanisms and functional effects of organizational activity.

Details

Evidence-based HRM: a Global Forum for Empirical Scholarship, vol. 9 no. 2
Type: Research Article
ISSN: 2049-3983

Keywords

Article
Publication date: 14 March 2008

Christine Wycisk, Bill McKelvey and Michael Hülsmann

The purpose of this paper is to critically analyze whether supply networks may be validly treated as complex adaptive systems (CAS). Finding this to be true, the paper turns into…

2872

Abstract

Purpose

The purpose of this paper is to critically analyze whether supply networks may be validly treated as complex adaptive systems (CAS). Finding this to be true, the paper turns into the latest concerns of complexity science like Pareto distributions to explain well‐known phenomena of extreme events in logistics, like the bullwhip effect. It aims to introduce a possible solution to handle these effects.

Design/methodology/approach

The method is a comparative analysis of current literature in the fields of logistics and complexity science. The discussion of CAS in supply networks is updated to include recent complexity research on power laws, non‐linear dynamics, extreme events, Pareto distribution, and long tails.

Findings

Based on recent findings of complexity science, the paper concludes that it is valid to call supply networks CAS. It then finds that supply networks are vulnerable to all the nonlinear and extreme dynamics found in CAS within the business world. These possible outcomes have to be considered in supply network management. It is found that the use of a neural network model could work to manage these new challenges.

Practical implications

Since, smart parts are the future of logistics systems, managers need to worry about the combination of human and smart parts, resulting design challenges, the learning effects of interacting smart parts, and possible exacerbation of the bullwhip effect. In doing so, the paper suggests several options concerning the design and management of supply networks.

Originality/value

The novel contribution of this paper lies in its analysis of supply networks from a new theoretical approach: complexity science, which the paper updates. It enhances and reflects on existing attempts in this field to describe supply networks as CAS through the comprehensive theoretical base of complexity science. More specifically, it suggests the likely vulnerability to extreme outcomes as the “parts” in supply networks become smarter. The paper also suggests different ways of using a neural network approach for their management – depending on how smart the logistics parts actually are.

Details

International Journal of Physical Distribution & Logistics Management, vol. 38 no. 2
Type: Research Article
ISSN: 0960-0035

Keywords

Abstract

Details

Handbook of Transport Geography and Spatial Systems
Type: Book
ISBN: 978-1-615-83253-8

Article
Publication date: 3 April 2023

Kip Errett Patterson

This conceptual article presents a schematic of rat maternal behavior and niche stress epigenetic effects as a case study that is then aligned with current evolutionary concepts…

Abstract

Purpose

This conceptual article presents a schematic of rat maternal behavior and niche stress epigenetic effects as a case study that is then aligned with current evolutionary concepts, which raises new questions regarding immigrant assimilation and niche dynamics.

Design/methodology/approach

The necessary background material for rat maternal and niche(s) stress factors are incorporated into a recursive, test-operate-test (rTOT), information-only-transfer, schematic (Patterson, 2023), which is an extension and refinement of the test-operate-test-exit (TOTE) schematic of Miller et al. (1960).

Findings

The generated epigenetic rTOT demonstrates the fundamental evolutionary unit of the flexible organism within its niche(s). The rTOT also confirms that epigenetic processes, epigenetic inheritance and phenotype plasticity are significant conceptual tools for understanding evolution. The teleology of rat adaptations for niche fitness via maternal behavior has been demonstrated. Sterling's (2011) allostasis, or predictive homeostasis, is extended to include species-niche(s) interaction(s) that are governed by recursive information feedback loops that function via self-organized criticality (SOC) for species and niche(s). Use of a rat model for biosocial issues in humans is strengthened.

Research limitations/implications

Epigenetic rTOT only covers the species side of the evolutionary unit. Niche(s) require(s) a separate rTOT schematic. The information modeled does not include the entire system producing epigenetic effects but models a substantial portion of it.

Practical implications

Epigenetic rTOT demonstrates the utility of phenotypic plasticity, epigenetics and epigenetic inheritance as explanations for inheritable behavior patterns. rTOT is a useful computational model for evolutionary issues. The issues involved in niche modeling using an rTOT schematic are briefly reviewed.

Social implications

When the demonstrated epigenetic model of rat genetics and inherited behavior are applied to the issues of immigrant enclaves, epigenetic complications for the difficulties of assimilation into the culture within which the enclaves are embedded become apparent. However, the questions raised must be addressed with extreme care to avoid cultural imperialism. Such cultural issues must be modeled with an rTOT application that covers the materials involved. The limitations of human Learning III restrictions when attempting to model Learning IV issues are addressed. Research into the means by which abuse and trauma are maintained by epigenetic means is urgently needed.

Originality/value

The rTOT schematic visualizes rat maternal behavior and stress epigenetic effects that produce inheritable behavior patterns, which answers Jablonka's (2017) request for new computational modeling representations. The concept of allostasis, or predictive homeostasis, (Sterling, 2011) is extended to the niche(s) of the organism under study so that allostasis becomes a fully cybernetic concept governed by SOC for both the organism and its niche(s). This new case study confirmed evolutionary effects of epigenetics, epigenetic inheritance and phenotypic plasticity. Niche control of organism evolution is presented. Epigenetic applications for immigrant assimilation issues have been suggested and niche dynamic questions have been raised.

Details

Kybernetes, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0368-492X

Keywords

Article
Publication date: 19 August 2013

Helder Ken Shimo and Renato Tinos

– The purpose of this paper is to propose two operators for diversity and mutation control in artificial immune systems (AISs).

Abstract

Purpose

The purpose of this paper is to propose two operators for diversity and mutation control in artificial immune systems (AISs).

Design/methodology/approach

The proposed operators are applied in substitution to the suppression and mutation operators used in AISs. The proposed mechanisms were tested in the opt-aiNet, a continuous optimization algorithm inspired in the theories of immunology. The traditional opt-aiNet uses a suppression operator based on the immune network principles to remove similar cells and add random ones to control the diversity of the population. This procedure is computationally expensive, as the Euclidean distances between every possible pair of candidate solutions must be computed. This work proposes a self-organizing suppression mechanism inspired by the self-organizing criticality (SOC) phenomenon, which is less dependent on parameter selection. This work also proposes the use of the q-Gaussian mutation, which allows controlling the form of the mutation distribution during the optimization process. The algorithms were tested in a well-known benchmark for continuous optimization and in a bioinformatics problem: the rigid docking of proteins.

Findings

The proposed suppression operator presented some limitations in unimodal functions, but some interesting results were found in some highly multimodal functions. The proposed q-Gaussian mutation presented good performance in most of the test cases of the benchmark, and also in the docking problem.

Originality/value

First, the self-organizing suppression operator was able to reduce the complexity of the suppression stage in the opt-aiNet. Second, the use of q-Gaussian mutation in AISs presented better compromise between exploitation and exploration of the search space and, as a consequence, a better performance when compared to the traditional Gaussian mutation.

Details

International Journal of Intelligent Computing and Cybernetics, vol. 6 no. 3
Type: Research Article
ISSN: 1756-378X

Keywords

Article
Publication date: 22 September 2023

Kip Errett Patterson

The purpose of this conceptual paper is to demonstrate how memes perpetuate trauma with a schematic. This conceptual paper uses the “begin with the end in mind” meme to format the…

Abstract

Purpose

The purpose of this conceptual paper is to demonstrate how memes perpetuate trauma with a schematic. This conceptual paper uses the “begin with the end in mind” meme to format the presentation of the necessary components for the schematic of how trauma persists across generations. It is the third paper in a series of applications of the recursive, test-operate-test schematic to the systemic effects of the information processes involved in trauma. The schematic presented permits evaluations of solutions to interrupt the generational trauma cycle.

Design/methodology/approach

The required schematic components are described. Trauma (actual or perceived threat to survival) will be briefly discussed. Evolutionary processes that create the psychophysiology necessary to support nominal social expectations (NSEs) memes and metaphors will be summarized. The development of NSEs will be discussed. Metaphors and memes necessary for the creation of the schematic and esoteric events at level Learning IV will be briefly described. Finally, Figure 3, which illustrates the maintenance of NSEs and attempts to prevent their violation, will be explained.

Findings

It is asserted that functional human social behavior requires NSEs. Trauma is found to persist through the presence of anti-nominal NSE memes that are transduced by the individual into anti-nominal metaphors, which then damage grid, place and dentate gyrus cell (GPDG) neurophysiology. The damaged neurocircuits allow the use of anti-nominal NSE metaphors within our individual neurophysiology. Furthermore, anti-NSE memes interfere with the self-organized criticalities (SOCs) of genetic-epigenetic processes necessary for the intergenerational transfer of functional social behavior. When anti-NSE nominal metaphors are transduced back into anti-NSEs, social niche memes, the trauma process is reiterated. Anti-NSE memes and metaphors are found to be inappropriate criteria central to the maintenance of persistent trauma. Therefore, anti-NSE memes have hijacked our epigenetics and our social niches. Solutions are available because during our evolution, the Homo clade developed esoteric capabilities and the ability to bring back what information we can from those encounters. This physiology operates around the 5HT2A neural receptors that process hallucinogens, such as psilocybin. Accessing this resource system, either through naturally occurring altered states of consciousness or through micro-dose pharmaceutical psilocybin and related neurotransmitters, produces a significant structural change in the GPDG system to reset the NSE system illustrated in the schematic to its nominal status so that we can maintain nominal NSE relationships within our meme niche(s).

Research limitations/implications

The source of persistent trauma in our social niche(s), the means by which the trauma is maintained and the means to mitigate and perhaps eliminate persistent trauma are identified. Based on these three conclusions, it is difficult to make decisions regarding corrective actions because of ubiquitous anti-NSE memes and because of the limitations of our ordinary consciousness.

Practical implications

If we wish to survive as a species, we will need to discover the criteria necessary to maintain our niche(s) congruent SOCs and use them instead of tyrannical memes described by Dawkins (1989) to make decisions about ourselves and our niche(s).

Social implications

Significant courage is required to identify the memes that maintain trauma because many of them are culturally sacred cows. Unfortunately, we have known since Bremner's (1995) MRI study of posttraumatic stress disorder that trauma causes brain damage. Fortunately, our NSE genes compel us to pursue restitution of the memes that maintain our trauma-inducing cultures.

Originality/value

Several original assertions are presented. While the Homo clade ancestors began the creation of the social niche(s) that led to Homo sapiens sapiens, it is asserted that the australopiths created the NSE memes which are the foundation behaviors that permit our social niche(s). Furthermore, NSEs were produced by enhanced intentionality skills and NSEs were created by both genetic and memetic processes. The evolution of intentionality-NSE neural networks is asserted as the source of intentional material manipulation. While anti-NSE memes are claimed as the source of persistent trauma, the practice of esoteric technologies is presented as a solution to persistent trauma.

Details

Kybernetes, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0368-492X

Keywords

1 – 10 of 218