Template-Type: ReDIF-Article 1.0
Author-Name: Tao Ma
Author-X-Name-First: Tao
Author-X-Name-Last: Ma
Author-Name: Ying Hou
Author-X-Name-First: Ying
Author-X-Name-Last: Hou
Author-Name: Jian-Jun Cheng
Author-X-Name-First: Jian-Jun
Author-X-Name-Last: Cheng
Author-Name: Xiao-Yun Chen
Author-X-Name-First: Xiao-Yun
Author-X-Name-Last: Chen
Title: A novel method combining fuzzy SVM and sampling for imbalanced classification
Abstract:
The class imbalance problem has been reported to reduce performance of many existing learning algorithms in intrusion detection. However, the detection rates for minority classes still need to be improved. Thus, the novel hybrid method FSVMs is proposed to solve the problem in the paper, which integrates the prevailing sampling method SMOTE with fuzzy semi-supervised SVM learning approach to class imbalanced intrusion detection data. The basic KDD Cup 1999 dataset, NSLKDD dataset and imbalanced dataset from UCI are used to evaluate the performance of proposed model. Experiment results show that the proposed method outperforms other state-of-the-art classifiers including support vector machine (SVM), back propagation neural network (BPNN), Bayes, k-nearest neighbour (KNN), decision tree (DT), random forest (RF) and four sampling methods in the aspects of detection rate and false alarm rate, and has better robustness for imbalanced classification.
Journal: Int. J. of Applied Systemic Studies
Pages: 1-31
Issue: 1
Volume: 8
Year: 2018
Keywords: intrusion detection; fuzziness; support vector machine; SVM; SMOTE; semi-supervised learning; SSL; imbalance classification; applied systemic studies.
File-URL: http://www.inderscience.com/link.php?id=91844
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Handle: RePEc:ids:ijass:v:8:y:2018:i:1:p:1-31

Template-Type: ReDIF-Article 1.0
Author-Name: Albin Wagener
Author-X-Name-First: Albin
Author-X-Name-Last: Wagener
Title: A theory of interactional systems: semantic connections and relational contextics
Abstract:
The aim of this paper is to develop a theoretical proposition based on the study of intercultural miscommunication, which has shown that the creation, evolution and ending of interactional misunderstandings can be understood by using systemic theories (Wagener, 2009a, 2010). In this perspective, human interactions obey basic principle that can be applied to biological life in its simplest expression, although said interactions draw on sophisticated devices used to trigger and maintain relationships and communication variations. We thus wish to combine the systemic, the pragmatic and the connectionist paradigms to represent both nuances and subtleties of human rapports. A systemic model of human interactions, namely the interactional system, would then draw on the flexibility and adaptability of its fundamental parameters. The main purpose of the present work is to elaborate on a theory of interactional systems by proposing a coherent and comprehensive approach of interactional dynamics, in order to present an accurate modelisation of the complexity of human interactions - especially when said interactions suffer situations of conflictual destabilisation.
Journal: Int. J. of Applied Systemic Studies
Pages: 32-50
Issue: 1
Volume: 8
Year: 2018
Keywords: interactions; systemics; semantic knots; emotions; connectionism; information; context; contextics.
File-URL: http://www.inderscience.com/link.php?id=91845
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Handle: RePEc:ids:ijass:v:8:y:2018:i:1:p:32-50

Template-Type: ReDIF-Article 1.0
Author-Name: Mohamed Najeh Lakhoua
Author-X-Name-First: Mohamed Najeh
Author-X-Name-Last: Lakhoua
Title: The need for systemic analysis and design methodology of medical equipments
Abstract:
The diversity of the medical equipments in hospital systems requires a structured analysis and design methodology in order to get perceptions and correct understandings of the internal working of these equipments. Indeed, medical equipments are intended to help the diagnosis and the medical problem treatment. They are conceived in general according to rigorous rules of security. Then, we identify various the basis types of the medical equipments: diagnosis, therapeutic, vital, monitors and laboratory equipments. To answer to this problem, the proposed methodology is based on the use of a systemic modelling approach in order to analysis and design medical equipments. This is why it is necessary to identify the rigorous security rules of various medical equipments as well as all the technical aspects related to the conception and the development of systems based on electronics and data processing.
Journal: Int. J. of Applied Systemic Studies
Pages: 76-88
Issue: 1
Volume: 8
Year: 2018
Keywords: analysis and modelling; medical equipment; system modelling; hospital system.
File-URL: http://www.inderscience.com/link.php?id=91846
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Handle: RePEc:ids:ijass:v:8:y:2018:i:1:p:76-88

Template-Type: ReDIF-Article 1.0
Author-Name: M.Y. Mohamed Parvees
Author-X-Name-First: M.Y. Mohamed
Author-X-Name-Last: Parvees
Author-Name: J. Abdul Samath
Author-X-Name-First: J. Abdul
Author-X-Name-Last: Samath
Author-Name: B. Parameswaran Bose
Author-X-Name-First: B. Parameswaran
Author-X-Name-Last: Bose
Title: Audio encryption - a chaos-based data byte scrambling technique
Abstract:
This study proposes an efficient audio byte scrambling technique using multiple chaotic maps. The audio encryption scheme uses Henon map and chaotic economic map for creating sequences. The system uses an efficient algorithm which makes the sequences to interdependent with each other. This inter-dependency will add more sensitivity and complexity to the proposed algorithm. A repeated application of confusion and diffusion techniques on plain audio data bytes produces the cipher audio data bytes which can be stored or sent through the public channel. The detailed study of chaotic maps with respect to Lyapunov exponent and bifurcate nature, supports the proposed cryptosystem to behave chaotically, thereby produce highly secured cipher audio. The results of the various analyses including histogram, key space, key sensitivity, statistical, differential attack, entropy, mean-variance data bytes value and randomness analyses ensures the security of the audio encryption scheme against various kinds of attacks.
Journal: Int. J. of Applied Systemic Studies
Pages: 51-75
Issue: 1
Volume: 8
Year: 2018
Keywords: audio encryption; confusion; diffusion; chaotic map.
File-URL: http://www.inderscience.com/link.php?id=91847
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Handle: RePEc:ids:ijass:v:8:y:2018:i:1:p:51-75

Template-Type: ReDIF-Article 1.0
Author-Name: S.L. Goldshtein
Author-X-Name-First: S.L.
Author-X-Name-Last: Goldshtein
Author-Name: E.M. Gritsyuk
Author-X-Name-First: E.M.
Author-X-Name-Last: Gritsyuk
Author-Name: A.N. Averianova
Author-X-Name-First: A.N.
Author-X-Name-Last: Averianova
Author-Name: S.S. Pecherkin
Author-X-Name-First: S.S.
Author-X-Name-Last: Pecherkin
Title: Modelling the extractor structure of the knowledge needed for fixing problematic situations involving a complicated object
Abstract:
The paper describes system-structural, tuple-structured and algorithmic extractor models for the knowledge needed of fixing problematic situations involving a complicated object. The models provide a formalised description for morphogenesis and function of the extractor, development thereof being mainly proposed through including system integration structures.
Journal: Int. J. of Applied Systemic Studies
Pages: 89-101
Issue: 2
Volume: 8
Year: 2018
Keywords: knowledge extractor; system integration; simulation; complicated object; problematic situations.
File-URL: http://www.inderscience.com/link.php?id=93034
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Handle: RePEc:ids:ijass:v:8:y:2018:i:2:p:89-101

Template-Type: ReDIF-Article 1.0
Author-Name: Ting Hao
Author-X-Name-First: Ting
Author-X-Name-Last: Hao
Author-Name: Saburo Matunaga
Author-X-Name-First: Saburo
Author-X-Name-Last: Matunaga
Title: Performance evaluation of robust attitude control system using control moment gyros for rapid multi-target observation
Abstract:
Since observation tasks of micro-satellite require rapid multi-target acquisition and high pointing accuracy, the single-gimbal control moment gyro (CMG) is considered as an ideal torque-generating actuator due to its practical performance for the satellite. This paper compares two useful robust attitude control algorithms (sliding mode control method and high order sliding mode control method). These control methods have improved the system's robustness and accuracy. The pseudo-inverse steering logic based on mixed two-norm and least-squares minimisation is chosen in this paper which can deal with both the internal singularity problem and momentum saturation singularities. This attitude control system is verified through numerical simulation. The results demonstrate the validity and feasibility of the proposed approach.
Journal: Int. J. of Applied Systemic Studies
Pages: 102-118
Issue: 2
Volume: 8
Year: 2018
Keywords: micro-satellite; control moment gyro; CMG; sliding mode control; steering logic; multi-target.
File-URL: http://www.inderscience.com/link.php?id=93036
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Handle: RePEc:ids:ijass:v:8:y:2018:i:2:p:102-118

Template-Type: ReDIF-Article 1.0
Author-Name: Dimitrios S. Varsos
Author-X-Name-First: Dimitrios S.
Author-X-Name-Last: Varsos
Author-Name: Nikitas A. Assimakopoulos
Author-X-Name-First: Nikitas A.
Author-X-Name-Last: Assimakopoulos
Title: Viability and change in the 21st century organisation: a cybernetic perspective
Abstract:
The 21st century organisation works and networks in an interconnected world where ambiguity and uncertainty abound. This dynamic environment necessitates continuous vigilance over the forces that impact the organisation's performance, and continual refinement of the sociotechnical infrastructure that supports its purpose. Relevant and timely decision-making is essential to managing change. However, absent resilient structural arrangements in place to effectively cope with change, the outcomes of decisions taken will be speculative, at best. In this article, we explore the (core) functions that form the traditional paradigm of management and consider the cybernetic structure of the viable system model as an alternate means of maintaining organisational cohesion during times of relative normality and during times of change. Moreover, we describe a pragmatic conceptual framework, which bridges the gap between the traditional and the cybernetic approach that can be used to manage change. Finally, we apply this framework to transform a traditional performance monitoring scheme into an integrated multidimensional performance measurement system.
Journal: Int. J. of Applied Systemic Studies
Pages: 119-150
Issue: 2
Volume: 8
Year: 2018
Keywords: systems approach; cybernetics; managing change; viable system model; VSM; DCSYM-2; methodological systemic scheme; MSS.
File-URL: http://www.inderscience.com/link.php?id=93039
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Handle: RePEc:ids:ijass:v:8:y:2018:i:2:p:119-150

Template-Type: ReDIF-Article 1.0
Author-Name: Lieschen Venter
Author-X-Name-First: Lieschen
Author-X-Name-Last: Venter
Author-Name: Maria M. Vosloo
Author-X-Name-First: Maria M.
Author-X-Name-Last: Vosloo
Title: A systems perspective on school improvement approaches
Abstract:
In this paper, the impact of school leadership on the learners' academic performance is considered in the South African context. School leadership is a systemic concept that cannot be analysed out of its context and thus we develop a simulation model to investigate the effect of various school leadership and management intervention programs on the principals themselves, and on the schools which they lead. The model is initiated with a mix of narrative and qualitative data. Interventions on the basis of what-if scenarios are modelled to illustrate the systemic nature of the education environment. The model can also assist school leaders to visualise the nonlinearity, time dependence and interdependence of the impact of their decisions. We show that interventions have to be made early and consistently to improve and maintain the system and that there is no immediate silver bullet solution.
Journal: Int. J. of Applied Systemic Studies
Pages: 151-180
Issue: 2
Volume: 8
Year: 2018
Keywords: South Africa; basic education; systems simulation; interventions; scenario testing.
File-URL: http://www.inderscience.com/link.php?id=93041
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Handle: RePEc:ids:ijass:v:8:y:2018:i:2:p:151-180

Template-Type: ReDIF-Article 1.0
Author-Name: B. Praba
Author-X-Name-First: B.
Author-X-Name-Last: Praba
Author-Name: G. Deepa
Author-X-Name-First: G.
Author-X-Name-Last: Deepa
Author-Name: V.M. Chandrasekaran
Author-X-Name-First: V.M.
Author-X-Name-Last: Chandrasekaran
Title: Lower and upper bound of the Laplacian energy with real and complex roots of an intuitionistic fuzzy directed graph
Abstract:
In this paper, the concept of Laplacian energy of a fuzzy graph is extended to the Laplacian energy of an intuitionistic fuzzy directed graph. The degree matrix and the Laplacian energy of an intuitionistic fuzzy directed graph are defined. The upper and lower bound are derived for the Laplacian energy of an intuitionistic fuzzy directed graph. Existing work has been conjectured that the inequality <i>E</i>(<i>G</i>) ≤ <i>LE</i>(<i>G</i>) holds for all graphs. But we are conjectured that the inequality <i>E</i>(<i>G</i>) ≤ <i>LE</i>(<i>G</i>) does not hold for an intuitionistic fuzzy directed graph. Finally, numerical examples are illustrated for the defined work. Moreover, we analysed the results for the energy of an intuitionistic fuzzy directed graph and Laplacian energy of an intuitionistic fuzzy directed graph.
Journal: Int. J. of Applied Systemic Studies
Pages: 196-217
Issue: 3
Volume: 8
Year: 2018
Keywords: energy of a graph; energy of a fuzzy graph; energy of an intuitionistic fuzzy graph; Laplacian energy of a graph; Laplacian energy of a fuzzy graph.
File-URL: http://www.inderscience.com/link.php?id=96097
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Handle: RePEc:ids:ijass:v:8:y:2018:i:3:p:196-217

Template-Type: ReDIF-Article 1.0
Author-Name: Yu Lin Li
Author-X-Name-First: Yu Lin
Author-X-Name-Last: Li
Author-Name: Shu Ping Yi
Author-X-Name-First: Shu Ping
Author-X-Name-Last: Yi
Title: The inventory-routing problem in field supply logistics
Abstract:
This paper considers the application units (AUs) operating within cropping fields as the 'customers', and the farm depots as the 'suppliers', while taking the fuel consumption rare (FCR) as a cost factor and adding it to the IRP. Then a dedicated classification of field supply logistics is devised based on a modified classification scheme and tailored to a conceptual application of the IRP. The research results show that delivery scheduling and planning problems in field supply logistics can be cast as IRP instances and solved by their corresponding methods. Overall, the adoption and modification of the IRP methodology provide a promising approach for the process improvement of field supply logistics.
Journal: Int. J. of Applied Systemic Studies
Pages: 181-195
Issue: 3
Volume: 8
Year: 2018
Keywords: agricultural field logistics; inventory management; vehicle routing; classification; conceptual application.
File-URL: http://www.inderscience.com/link.php?id=96098
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Handle: RePEc:ids:ijass:v:8:y:2018:i:3:p:181-195

Template-Type: ReDIF-Article 1.0
Author-Name: Yuling Wang
Author-X-Name-First: Yuling
Author-X-Name-Last: Wang
Author-Name: Ming Wang
Author-X-Name-First: Ming
Author-X-Name-Last: Wang
Author-Name: Shulan Gong
Author-X-Name-First: Shulan
Author-X-Name-Last: Gong
Author-Name: Ya Xu
Author-X-Name-First: Ya
Author-X-Name-Last: Xu
Author-Name: Chen He
Author-X-Name-First: Chen
Author-X-Name-Last: He
Title: Construction of structural reference model for ERT data inversion in heavy metal contaminated sites surveys
Abstract:
Electrical resistivity tomography (ERT) surveys can provide useful information on heavy metal contaminated sites assessment. Structural reference model is introduced as a constraint to guide ERT data inversion in ERT survey. In this paper, we propose a novel method, which integrate soil physical and chemical information into structural reference model construction for ERT data inversion to improve the accuracy of inversion results. The reference model consists of two parts: contaminated area and uncontaminated area. The scope of contaminated areas is recognised using soil physical and chemical properties and the apparent resistivity data extracted from the ERT profile at the borehole location, and then the resistivity distribution of reference model is set according to the average resistivity of soil samples. The accuracy of the proposed method is evaluated with two numerical experiments. The experiment results of synthetic models show that the structural reference model constructed by the proposed method is close to the synthetic model and effectively improves the inversion results.
Journal: Int. J. of Applied Systemic Studies
Pages: 218-232
Issue: 3
Volume: 8
Year: 2018
Keywords: structural reference model; ERT data inversion; contaminated sites survey; Wenner array.
File-URL: http://www.inderscience.com/link.php?id=96109
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Handle: RePEc:ids:ijass:v:8:y:2018:i:3:p:218-232

Template-Type: ReDIF-Article 1.0
Author-Name: Aristotelis B. Alexopoulos
Author-X-Name-First: Aristotelis B.
Author-X-Name-Last: Alexopoulos
Author-Name: Evangelos Sambracos
Author-X-Name-First: Evangelos
Author-X-Name-Last: Sambracos
Title: Flag state policies and labour dynamics in the shipping industry
Abstract:
This paper focuses on the problem of state policies and labour dynamics in the shipping industry by applying a system dynamics methodology. Traditional flag states, such as Greece, has been facing serious problems with regard to its national shipping policy, that is to say, the flagging out from the Greek flag towards open registries and the depletion of the Greek maritime workforce during the last decades. Its response, in terms of state policies, has so far met with little success. This is largely due to the complex dynamic nature of state intervention and protectionist policies, which makes it extremely difficult to achieve the desired effects. This work is still in progress and this paper presents an initial approach to the problem, as well as some insights gained.
Journal: Int. J. of Applied Systemic Studies
Pages: 233-245
Issue: 3
Volume: 8
Year: 2018
Keywords: system dynamics; state policies; seamen motivations; shipping companies' policies.
File-URL: http://www.inderscience.com/link.php?id=96117
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Handle: RePEc:ids:ijass:v:8:y:2018:i:3:p:233-245

Template-Type: ReDIF-Article 1.0
Author-Name: Anjali Munde
Author-X-Name-First: Anjali
Author-X-Name-Last: Munde
Title: On generalised intutionistic fuzzy divergence
Abstract:
Atanassov (1986) defined the notion of intuitionistic fuzzy sets (IFS), which is a generalisation of the concept of fuzzy sets, introduced by the Zadeh (1965). Decision makers may not be able to accurately express their view for the problem as they may not possess a precise or sufficient knowledge of the problem or the decision makers are unable to discriminate explicitly the degree to which one alternative are better than others in such cases, the decision maker may provide their preferences for alternatives to certain degree, but it is possible that they are not so sure about it. Thus, it is very suitable to express the decision maker preference values with the use of fuzzy/intuitionistic fuzzy values rather than exact numerical values or linguistic variables (Szmidt and Kacprzyk, 2001, 1997, 2000). In the present communication, generalised measures of intutionistic fuzzy divergence with the proof of their validity are introduced.
Journal: Int. J. of Applied Systemic Studies
Pages: 246-254
Issue: 3
Volume: 8
Year: 2018
Keywords: fuzzy sets; fuzzy entropy; intuitionistic fuzzy set; intuitionistic fuzzy divergence.
File-URL: http://www.inderscience.com/link.php?id=96119
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Handle: RePEc:ids:ijass:v:8:y:2018:i:3:p:246-254

Template-Type: ReDIF-Article 1.0
Author-Name: Sabah Al-Fedaghi
Author-X-Name-First: Sabah
Author-X-Name-Last: Al-Fedaghi
Author-Name: Abdulaziz AlQallaf
Author-X-Name-First: Abdulaziz
Author-X-Name-Last: AlQallaf
Title: Modelling and control of engineering plant processes
Abstract:
With increasing scale and complexity of networked applications, the concept of system of systems has recently emerged. This paper introduces a new systems engineering approach that can be utilised uniformly to represent integrated static descriptions of systems and their behaviours along with control specifications. It avoids the multiplicity of views associated with object-oriented techniques. Its ontology is simpler in that it incorporates only a few notions: things, flows, and their stages and triggering. This paper demonstrates the advantages of the proposed modelling technique by producing a high-level systematic specification (comparable to such tools as process flow diagrams) and using this model to depict the management and control of a system. To demonstrate the viability of the model, it is applied to developing a diagrammatic description of processes in a water distillation plant.
Journal: Int. J. of Applied Systemic Studies
Pages: 255-277
Issue: 3
Volume: 8
Year: 2018
Keywords: conceptual model; schematic diagrams; process engineering; process flow diagram; engineering system high level description.
File-URL: http://www.inderscience.com/link.php?id=96122
File-Format: text/html
File-Restriction: Open Access
Handle: RePEc:ids:ijass:v:8:y:2018:i:3:p:255-277