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Article
Publication date: 7 January 2021

Wang Jianhong and Wang Yanxiang

The purpose of this paper is to deal with the anomaly detection problem in multi-unmanned aerial vehicles (UAVs) formation that can be transformed to identify some unknown…

Abstract

Purpose

The purpose of this paper is to deal with the anomaly detection problem in multi-unmanned aerial vehicles (UAVs) formation that can be transformed to identify some unknown parameters; a more general nonlinear dynamical model for each UAV is considered to include two terms. Due to an unknown parameter corresponding to the normal or abnormal state for each UAV, the bias-compensated approach is proposed to obtain the unbiased parameter estimation. Meanwhile, the biased error and accuracy analysis are also given in case of strict statistical description of the uncertainty or white noise. To relax this strict statistical description on external noise, an analytic center approach is proposed to identify the unknown parameters in presence of bounded noise, such that two inner and outer ellipsoidal approximations are constructed to include the membership set. To be precise, this paper is regarded as one extension and summary for the author’s previous research on the anomaly detection in multi-UAV formation. Finally, one simulation example is given to confirm the theoretical results.

Design/methodology/approach

Firstly, one extended nonlinear relation is constructed to embody the mutual relationship of UAVs. Secondly, to obtain the unbiased parameter estimations, the bias-compensated approach is applied to achieve it under the condition of white noise. Thirdly, in case of unknown but bounded noise, an analytic center approach is proposed to deal with this special case. Without loss of generality, the author thinks this paper can be used as one extension and summary for research on multi-UAVs formation anomaly detection.

Findings

An anomaly detection problem in multi-UAVs formation can be transformed into a problem of nonlinear system identification, and in modeling the nonlinear dynamical model for each UAV, two terms are considered simultaneously to embody the mutual relationships with other nearest UAV.

Originality/value

To the best knowledge of the authors, this problem of the anomaly detection problem in multi-UAVs formation is proposed by the authors’ previous work, and the problem of multi-UAVs formation anomaly detection can be transferred into one problem of parameter identification. In case of unknown but bounded noise, an analytic center approach is proposed to identify the unknown parameters, which correspond to achieve the goal of the anomaly detection.

Details

Aircraft Engineering and Aerospace Technology, vol. 93 no. 1
Type: Research Article
ISSN: 1748-8842

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Article
Publication date: 28 September 2010

Yiting Chang, Nava Lerer and Kathryn Talley

Most retention literature compares students who remain at an institution with those who leave. This paper seeks to extend the analysis by focusing on freshmen who leave in

Abstract

Purpose

Most retention literature compares students who remain at an institution with those who leave. This paper seeks to extend the analysis by focusing on freshmen who leave in order to transfer to another institution. Using person‐centered and variable centered approaches, it aims to examine subgroups to determine variables contributing to different transfer rates.

Design/methodology/approach

Data were collected through surveys, and a quantitative approach was used to analyze the data.

Findings

By the unique nature of the sample (i.e. students contemplating transfer to another institution even before their freshman year at Adelphi begins) and utilization of person‐centered and variable‐centered analytic approaches, the current results provide both practical and methodological implications for student retention.

Originality/value

This is an original work which was previously presented at the 2006 Northeast Association of Institutional Association annual conference.

Details

On the Horizon, vol. 18 no. 4
Type: Research Article
ISSN: 1074-8121

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Article
Publication date: 2 September 2013

Dan Albertson

The purpose of this paper is to present a framework applicable to interactive video retrieval. The objective of the framework is so that it can be applied conceptually for…

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Abstract

Purpose

The purpose of this paper is to present a framework applicable to interactive video retrieval. The objective of the framework is so that it can be applied conceptually for understanding users and use of video digital libraries, and also practically for designing retrieval components like user interfaces.

Design/methodology/approach

The framework was developed through a user-centered and analytical approach, and serves as an initial attempt at generalizing how users interact when searching and browsing digital video, throughout different situations, along with the general designs that can be supportive.

Findings

The framework is two-fold, yet, together, comprises one set of conceptual findings. The first component of the framework depicts generalized user interactions throughout varying contexts of an interactive video retrieval process, followed by a second component, an illustration of the resulting supportive interface designs or sets of features. Cautions from previous studies not to over generalize the interactive process were heeded.

Research limitations/implications

The implications for such research are based on the understanding that video retrieval will benefit from the advancement of user-centered foundations, which can guide and support design decisions for resources like digital libraries.

Originality/value

The need for this study is rather straightforward: there is currently not enough conceptual research of interactive video retrieval from a user-centered perspective, which contrasts with other areas of information retrieval research where the interaction process has been thoroughly examined for a variety of domains and contexts with implications for different retrieval tools like OPACs, search engines, and article databases.

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Article
Publication date: 23 April 2020

Ying Zhang, Jingjing Li, Yahui Song and Zhenxing Gong

Previous studies have focused on exploring the factors that influence employees' two distinct types of creativity, that is, radical and incremental creativity, while very…

Abstract

Purpose

Previous studies have focused on exploring the factors that influence employees' two distinct types of creativity, that is, radical and incremental creativity, while very little attention has been paid to the outcomes of creativity and how the two types of creativity interact within individuals.

Design/methodology/approach

The present study addresses this issue by adopting both variable-centered (correlation) and person-centered (latent profile analysis) approaches for three samples of supervisor–employee dyads data from China (n = 159, 213 and 273).

Findings

Using variable-centered analysis in sample 1, general creativity was positively associated with the four work performance dimensions, while there was no significant correlation between creativity and well-being. Using person-centered analysis, five very similar creativity profiles were found across samples 2 and 3 based on employees' radical and incremental creativity. These five classes differed in work performance dimensions and well-being, with classes characterized by a high level of incremental creativity profiles reporting a higher level of well-being and classes characterized by a high level of both incremental and radical creativity profiles reporting a higher level of the four work performance dimensions.

Practical implications

Managers are suggested to focus on factors that could promote employees' incremental creativity if they want to have happier and highly performing employees, and they could also focus on factors that could aid employees who may experience costs when engaging in radical creative activities.

Originality/value

The results of the present study contribute to uncover the potential outcomes related to employees' creativity by identifying distinct profiles of creativity types.

Details

European Journal of Innovation Management, vol. 24 no. 3
Type: Research Article
ISSN: 1460-1060

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Book part
Publication date: 12 January 2021

Milo Shaoqing Wang and Michael Lounsbury

Narrow, managerially centered notions of organizational culture remain hegemonic, marginalizing richer, anthropological approaches as well as efforts to understand how the…

Abstract

Narrow, managerially centered notions of organizational culture remain hegemonic, marginalizing richer, anthropological approaches as well as efforts to understand how the beliefs and practices of organizations are fundamentally shaped by the wider societal dynamics within which they are embedded. In this paper, the authors draw upon recent efforts to explore the interface of scholarship on practice and the institutional logics perspective to highlight the utility of a practice-driven institutional approach to the study of organizational culture that brings society back in. Empirically, the authors present a longitudinal case study of a Chinese private enterprise, and analyze how the unfolding dynamics of a strong community logic increasingly affected by a rising market logic, shaped the formation of political coalitions internally and externally as organizational members aimed to maintain truces between the push and pull of logics over a period of 22 years. Through an analysis of seven episodes that we conceptualize as “cultural encounters,” the authors find that a combination of compartmentalization and overall integration of logics contributes to provisional truces, and that people in the same cohort who share common geographic socialization are more likely to form allies. Our aim is to encourage future scholars to study how societal beliefs and practices work their way into organizations in a variety of explicit as well as more mundane, hidden ways.

Details

On Practice and Institution: New Empirical Directions
Type: Book
ISBN: 978-1-80043-416-5

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Article
Publication date: 16 March 2012

David Joubert

The idea that criminal behavior is a function of the offender's personality, also called the Homology hypothesis, has a long history in forensic psychology and…

Abstract

Purpose

The idea that criminal behavior is a function of the offender's personality, also called the Homology hypothesis, has a long history in forensic psychology and criminology. This assumption, however, has been decried as lacking empirical support. In spite of much social concern relative to sexual offenses, there is virtually no research looking at the stability of offending pattern in sex offenders of adult women. This paper aims to fill some of the gaps.

Design/methodology/approach

Latent structure analyses were conducted on a secondary dataset including 145 serial rapists. A cross‐sectional, discrete time‐series design was used including a sequence of three offenses.

Findings

Moderate support was found for the three main assumptions underlying the Homology hypothesis. Offenses tended to share a relatively similar underlying structure, with the victimology and aggression components being more prominent than the sexual dimension. The three primary profiles identified, labeled “Passive”, “Stranger‐aggressive”, and “Antisocial”, were found to be about 50 percent stable across the sequence. Finally, the presence of significant dysfunction in the family of origin predicted membership in the “Antisocial” class, as well as increased the specificity and stability of this profile. The presence of early maladjustment was not related to any of the states.

Research limitations/implications

Based on the results, it is proposed that future research incorporates contextual‐environmental elements in order to increase the validity of the findings.

Originality/value

This study represents a unique attempt at documenting patterns of stability and variations across incidents of rape, using an institutional sample. Furthermore, it illustrates the use and potential benefits of latent structure models in criminological research.

Details

Journal of Criminal Psychology, vol. 2 no. 1
Type: Research Article
ISSN: 2009-3829

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Article
Publication date: 13 April 2012

Razwan Ul‐Haq

The purpose of the paper is to encourage debate around the issues of the bank and Islamisation.

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748

Abstract

Purpose

The purpose of the paper is to encourage debate around the issues of the bank and Islamisation.

Design/methodology/approach

The work is an ideological examination of approaches to Islamisation and includes references to thinkers from Muslim history.

Findings

The Islamisation model is not wholly appropriate in the banking sector.

Practical implications

The paper highlights the limitations of the Islamisation approach and puts forward the case for another methodology, Namely the model of Islamication.

Social implications

The impact of the author's recommendations, if followed would revolutionise the way banking is carried out.

Originality/value

The conceptualization of Islamication with regard to banking has not yet been academically formulated. This paper provides a platform to do this. Although Muslim societies and Muslims living in the West will be interested in the paper, non Muslim scholars Europe too, faced with a banking crisis may welcome some of the report's recommendations.

Details

Journal of Islamic Accounting and Business Research, vol. 3 no. 1
Type: Research Article
ISSN: 1759-0817

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Book part
Publication date: 19 July 2005

Bert Flier, Frans A.J. van den Bosch, Henk W. Volberda and Charles Baden-Fuller

How do large well-established firms renew themselves in an increasing turbulent environment? Is there a generic pattern of change or is each change journey rather…

Abstract

How do large well-established firms renew themselves in an increasing turbulent environment? Is there a generic pattern of change or is each change journey rather idiosyncratic? We posed five questions about the nature of renewal patterns. First, how do firms combine external versus internal initiatives in a trajectory of strategic renewal? Second, how does the balance of competence building and competence leveraging evolve in a trajectory of strategic renewal? Third, what are the sequences of action in a strategic renewal process? Fourth, do firms differ regarding speed of their renewal processes? Finally, do different strategic renewal trajectories give rise to different or similar outcomes? Using a simple framework and new metrics we described and analyzed the strategic renewal journeys of the five largest financial service firms in the Netherlands during the period 1990–1997. We found equifinality in viable trajectories of strategic renewal. In four out of five firms, they result in similar outcomes due to mimetic behavior. Nonetheless, one firm showed deviant strategic behavior.

Details

Competence Perspectives on Resources, Stakeholders and Renewal
Type: Book
ISBN: 978-0-76231-170-5

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Book part
Publication date: 13 August 2018

Robert L. Dipboye

Abstract

Details

The Emerald Review of Industrial and Organizational Psychology
Type: Book
ISBN: 978-1-78743-786-9

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Article
Publication date: 29 May 2018

Natalia Saukkonen, Teemu Laine and Petri Suomala

To be utilized effectively in decision-making processes, management accounting (MA) information should fit the business context and at the same time reflect the roles…

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1727

Abstract

Purpose

To be utilized effectively in decision-making processes, management accounting (MA) information should fit the business context and at the same time reflect the roles, responsibilities and values of the actors taking part in the decision-making. This study aims to investigate the limitations for MA information utilization in decision-making. In particular, this study explores limitations stemming from the decision-making process structure and the involvement of several managerial actors.

Design/methodology/approach

An exploratory case study of an energy company and its customer company illustrates the current challenges in providing and integrating MA information into decision-making. The analysis is focused on the analytical and actor-based features of the decision-making and thus the limitations for MA information utilization. As a part of the broader research process, the researchers facilitated a meeting in the customer company, where the actors relevant to investment decisions discussed the current limitations in utilizing MA information.

Findings

Analytical and actor-based features may take different forms in the decision-making. Some relevant MA information may not be included in an organization’s decision-making process structure that allows merely conventional, yet analytical, decision alternatives. At the same time, certain actors’ viewpoints (such as sustainability metrics) can be excluded from the process without considering the logic behind the exclusion. This case study identifies the following limitations, largely related to insufficient actor-based features in the decision-making: managers may lack expertise in the use of MA tools, managerial interaction may lack reflection on taken-for-granted assumptions, different managers may appreciate different scope, content and timing of MA information and the process structure can ignore the required managerial viewpoints.

Research limitations/implications

This study demonstrates that both the decision-making process structure and the needs of the several actors involved may lead to limitations for MA information utilization. Although many limitations stemmed from the insufficient actor-based orientation in the case study, introducing new MA analyses and extending the validity of analytical approaches may also help overcome some of the limitations. Further research should address possibilities to integrate different actors’ viewpoints with MA information already in the decision-making process structure, find ways to introduce MA information on unconventional decision alternatives and enable reflection among and about relevant actors with respect to decision-making. These means could lead to more effective utilization of MA information for decision-making and, consequently, economically viable decisions.

Originality/value

This study addresses the limitations in MA information utilization by combining the viewpoints of analytical decision-making processes and reflective actors, and thus unveils possibilities for enhancing MA practice.

Details

Qualitative Research in Accounting & Management, vol. 15 no. 2
Type: Research Article
ISSN: 1176-6093

Keywords

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