Sebastian Olbrich and Carlo Simon
To demonstrate the value of formal process modelling languages for the description of legal constraints and their verification in public and private business processes.
Abstract
Purpose
To demonstrate the value of formal process modelling languages for the description of legal constraints and their verification in public and private business processes.
Design/methodology/approach
A highly regulated governmental process in Germany – applying for premium rate service numbers at the German Federal Network Agency – is taken as an example to demonstrate that laws and rules define processes for those who want to use them. A novel formal process language is used to verify whether applicants' processes fulfil these constraints or not.
Findings
With the presented approach, contradictions between business processes of private organisations and the given laws could precisely be identified.
Research limitations/implications
The results are currently restricted to the use of formal process languages as the one suggested in the paper. It would be helpful to extend the work on conceptual process models.
Practical implications
The paper motivates a process‐oriented analysis of laws and rules. The approach can be used for both, verification after the event and as a normative guideline for the development of new workflows.
Originality/value
This paper identifies a need for formal process definitions as a medium to understand legal constraints and to behave in accordance with them.
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Rafael Belchior, Sérgio Guerreiro, André Vasconcelos and Miguel Correia
The complexity of business environments often causes organizations to produce several inconsistent views of the same business process (BP), leading to fragmentation. BP view…
Abstract
Purpose
The complexity of business environments often causes organizations to produce several inconsistent views of the same business process (BP), leading to fragmentation. BP view integration attempts to produce an integrated view from different views of the same model, facilitating the management of BP models.
Design/methodology/approach
To study the trends of BP view integration, the authors conduct an extensive and systematic literature review to summarize findings since the 1970s. With a starting corpus of 918 documents, this survey draws up a systematic inventory of solutions used in academia and industry. By narrowing it down to 71 articles, the authors discuss in-depth 17 BP integration techniques papers, classifying each solution according to 9 criteria.
Findings
The authors' study shows that most view-integration methods (11) utilize annotation-based matching, based on formal merging rules. While most solutions are formalized, only approximately half are validated with a real-world use case scenario. View integration can be applied to areas other than database schema integration and BP view integration.
Practical implications
By summarizing existing knowledge up to June 2021, the authors explore possible future research directions. The authors highlight the application of view integration to the blockchain research area, where stakeholders can have different views on the same blockchain. The authors expect that this study contributes to interdisciplinary research across view integration, namely to the context of blockchain.
Originality/value
This survey serves to pave the way for future trends, where the authors highlight the application of view integration to blockchain research.
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The chapter starts with some reflections on the different ways in which scholars (implicitly, if not explicitly) perform visual analysis in their own work. For social movement…
Abstract
The chapter starts with some reflections on the different ways in which scholars (implicitly, if not explicitly) perform visual analysis in their own work. For social movement scholars, in fact, the choice of logos for research centers, the selection of pictures for presentation slides, or the designing of covers for books all signal not only esthetic tastes but also specific conceptions of their object of studies. Moving from these experiences to some empirical analysis of the images collected in the place where young activist Carlo Giuliani was killed during a police charge at the counter summit against the G8 in Genoa in 2001, the chapter suggests some line of reflections on the production and use of images in social movements.
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Incremental value‐at‐risk (VaR) is used to measure the effectiveness of diversification. However, the statistical properties of the estimated incremental VaR have not been fully…
Abstract
Incremental value‐at‐risk (VaR) is used to measure the effectiveness of diversification. However, the statistical properties of the estimated incremental VaR have not been fully explored. In this article, the author compares incremental VaR with other VaR‐based risk measures. The article derives the exact distribution of the estimated incremental VaR, when obtained using Monte Carlo simulation. The approach obtains general results with the implication that incremental VaR is dependent on the simulation method.
William A. Kerler, A. Scott Fleming and Christopher D. Allport
The purpose of this study is to investigate the effects of attribute frames and justifications on capital budgeting decisions and to examine whether the requirement to provide…
Abstract
Purpose
The purpose of this study is to investigate the effects of attribute frames and justifications on capital budgeting decisions and to examine whether the requirement to provide justification for a capital budgeting decision moderates the effect of attribute frames.
Methodology
One-hundred and eleven participants made a capital budgeting decision in an experimental case that manipulated the frame of the financial evidence provided and the requirement to provide a justification.
Findings
Results suggest that both attribute frames and justifications affect capital budgeting decisions but the requirement to provide justifications did not moderate the effect of attribute frames.
Originality/value
This study contributes to the capital budgeting literature by identifying two factors that may bias judgments. This study also contributes to the framing literature by examining one potential method of moderating framing effects – requiring justification for decisions.
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Silvia Ravazzani and Simon Hazée
Despite an increasing body of research on value co-creation through social media, service organizations still face difficulties in leveraging the potential of social media…
Abstract
Purpose
Despite an increasing body of research on value co-creation through social media, service organizations still face difficulties in leveraging the potential of social media communication to facilitate value co-creation with multiple stakeholders. This article addresses this challenge by adopting a multistakeholder, communication perspective.
Design/methodology/approach
This article uses a conceptual approach and builds upon concepts widely recognized in the public relations (PR) literature to assess communication in multistakeholder social media-mediated exchanges.
Findings
This article discusses the role of social media communication in enabling value co-creation as well as the communicative challenges that come along with it. Moreover, applying PR academic insights to the service innovation and service recovery research fields, it advances theoretical propositions that predict how service organizations can successfully build upon the social media communication fundamentals – namely dialogue, engagement, social presence and conversational human voice – to trigger value co-creation with and among multiple stakeholders.
Originality/value
This article introduces selected relevant theoretical concepts from the PR field and develops novel theoretical propositions that are likely to make unique contributions to the service management field. The article also advances future research avenues that will help service and communication scholars together move the field forward.
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M. Kavitha Lakshmi, S. Koteswara Rao and Kodukula Subrahmanyam
Nowadays advancement in acoustic technology can be explored with marine assets. The purpose of the paper is pervasive computing underwater target tracking has aroused military and…
Abstract
Purpose
Nowadays advancement in acoustic technology can be explored with marine assets. The purpose of the paper is pervasive computing underwater target tracking has aroused military and civilian interest as a key component of ocean exploration. While many pervasive techniques are currently found in the literature, there is little published research on the effectiveness of these paradigms in the target tracking context.
Design/methodology/approach
The unscented Kalman filter (UKF) provides good results for bearing and elevation angles only tracking. Detailed methodology and mathematical modeling are carried out and used to analyze the performance of the filter based on the Monte Carlo simulation.
Findings
Due to the intricacy of maritime surroundings, tracking underwater targets using acoustic signals, without knowing the range parameter is difficult. The intention is to find out the solution in terms of standard deviation in a three-dimensional (3D) space.
Originality/value
A new method is found for the acceptance criteria for range, course, speed and pitch based on the standard deviation for bearing and elevation 3D target tracking using the unscented Kalman filter covariance matrix. In the Monte Carlo simulation, several scenarios are used and the results are shown.
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A major difficulty in continuous speech recognition research is the lack of effective and objective evaluation of the statistical models of text. Herbert Simon's view for…
Abstract
A major difficulty in continuous speech recognition research is the lack of effective and objective evaluation of the statistical models of text. Herbert Simon's view for evaluating theories is here applied to the statistical modelling of text. Three significant contributions can be identified. First, a time‐series representation of text is used to identify three well‐known empirical laws of text generation. These laws provide an effective and objective approach for evaluating four leading statistical models of text. Second, it is shown that the Simon‐Yule model of text provides a constructive mechanism for those laws. Third, based on Simon's explanatory processes of imitation and association, an adaptive framework for continuous speech recognition is suggested.
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Jafar Keighobadi, Mohammad‐Javad Yazdanpanah and Mansour Kabganian
The purpose of this paper is to consider the process of design and implementation of an enhanced fuzzy H∞ (EFH∞) estimation algorithm to determine the attitude and heading angles…
Abstract
Purpose
The purpose of this paper is to consider the process of design and implementation of an enhanced fuzzy H∞ (EFH∞) estimation algorithm to determine the attitude and heading angles of ground vehicles, which are frequently affected by considerable exogenous disturbances. To detect the changes of disturbances, a fuzzy system is designed based on expert knowledge and experiences of a navigation engineer. In the EFH∞ estimator, the intensity bounds of disturbances affecting the measurements are updated using a heuristic combination of three change‐detection indices. Performance of the proposed estimator is evaluated by Monte‐Carlo simulations and field tests of three kinds of vehicles using a manufactured attitude‐heading reference system (AHRS). In both simulations and real tests, the proposed estimator results in a superior performance compared to those of the recently developed and standard H∞ estimators.
Design/methodology/approach
Design, implementation and real tests of the EFH∞ estimator are considered for an AHRS specialized for vehicular applications. In the AHRS, three‐axis accelerometers (TAA) and three‐axis magnetometers (TAM) may be affected by large disturbances due to non‐gravitational accelerations and local magnetic fields. Therefore, the design parameters of EFH∞ estimator including the theoretic bound of disturbance intensity and the attenuation level are adaptively tuned using a fuzzy combination of three change‐detection indices. Once a sensor is affected by an exogenous disturbance, the fuzzy system will increase the scale factor of the corresponding measurement disturbance to place more confidence on the data of the AHRS dynamics including measurements of gyros with respect to the data coming from the TAA and TAM.
Findings
An intelligent fault detector is proposed for considering changes of disturbances to adjust the upper bounds of the estimator's disturbances and the length of data to update the fuzzy system inputs. The EFH∞ estimator is suitable to attenuate the effects of disturbances changes on accurate estimation of the attitude and heading angles, intelligently.
Originality/value
The paper provides a fuzzy state estimator for adaptively adjusting the theoretic disturbance matrices according to the actual intensity of the disturbances affecting the AHRS dynamics and the measurement sensors.