Metrics on Software Structure Based on Structural Features in Software Network

2014 ◽  
Vol 543-547 ◽  
pp. 3260-3263
Author(s):  
Zheng Liu ◽  
Qian Zhang ◽  
Hai Zhao
Keyword(s):  
Structural Complexity ◽  
Structural Features ◽  
Software System ◽  
Software Structure ◽  
Software Network ◽  
Definition Of

According to the problem that traditional metric methods for software structure cannot reflect the structural features of software system on macro-view, the definition of Radiation Degree is presented based on software network that directed and weighted firstly, and the structural complexity of each node and the overall complexity of the system are measured by evaluating the outward Radiation Degree and inward Radiation Degree of the node. Secondly, because inward Radiation Degree and outward Radiation Degree are different reflection of structural features, Ratio of Radiation Cycle is presented to find the nodes have both high inward Radiation Degree and outward Radiation Degree. This method is detection for defects in software structure that can find the dangerous nodes in structure in time and provide guides during developing or maintaining of software system.

The Static Structural Complexity Metrics for Large-Scale Software System

2010 ◽  
Vol 44-47 ◽  
pp. 3548-3552 ◽  
Author(s):  
Hao Hua Zhang ◽  
Wen Jiang Feng ◽  
Li Juan Wu
Keyword(s):  
Complex Networks ◽  
Large Scale ◽  
Software Metrics ◽  
Structural Complexity ◽  
Software Systems ◽  
Software System ◽  
Complexity Metrics ◽  
Software Structure ◽  
Basic Parameters ◽  
Software Development Practices

Measuring the complexity of a large-scale software system has been a urgent demand in software development practices. The traditional software metrics can hardly describe the structural complexity in modern software. As the complex networks theory has been used to study the software structure, we analyzed a great many software systems. The analyzing results reveal the parameters in complex networks can be used to represent property of software structure. And this paper introduces some efficient metrics and measuring methods based on basic parameters in complex networks. A practice example was described to demonstrate the effectiveness of the metrics.

A Software Network Model for Software Structure and Faults Distribution Analysis

2019 ◽  
Vol 68 (3) ◽  
pp. 844-858 ◽  
Author(s):  
Jun Ai ◽  
Wenzhu Su ◽  
Shaoxiong Zhang ◽  
Yiwen Yang
Keyword(s):  
Network Model ◽  
Distribution Analysis ◽  
Software Structure ◽  
Software Network

Multi-lamellar organization of fully deuterated lipid extracts of yeast membranes

2014 ◽  
Vol 70 (12) ◽  
pp. 3167-3176 ◽  
Author(s):  
Yuri Gerelli ◽  
Alexis de Ghellinck ◽  
Juliette Jouhet ◽  
Valérie Laux ◽  
Michael Haertlein ◽  
...  
Keyword(s):  
Relative Humidity ◽  
Neutron Diffraction ◽  
Structural Complexity ◽  
Structural Features ◽  
Metabolic Effects ◽  
Growth Media ◽  
Small Momentum Transfer ◽  
Lipid Species ◽  
Two Samples ◽  
Temperature And Humidity

Neutron scattering studies on mimetic biomembranes are currently limited by the low availability of deuterated unsaturated lipid species. In the present work, results from the first neutron diffraction experiments on fully deuterated lipid extracts from the yeastPichia pastorisare presented. The structural features of these fully deuterated lipid stacks are compared with those of their hydrogenous analogues and with other similar synthetic systems. The influence of temperature and humidity on the samples has been investigated by means of small momentum-transfer neutron diffraction. All of the lipid extracts investigated self-assemble into multi-lamellar stacks having different structural periodicities; the stacking distances are affected by temperature and humidity without altering the basic underlying arrangement. At high relative humidity the deuterated and hydrogenous samples are similar in their multi-lamellar arrangement, being characterized by two main periodicities of ∼75 and ∼110 Å reflecting the presence of a large number of polar phospholipid molecules. Larger differences are found at lower relative humidity, where hydrogenous lipids are characterized by a larger single lamellar structure than that observed in the deuterated samples. In both cases the heterogeneity in composition is reflected in a wide structural complexity. The different behaviour upon dehydration can be related to compositional differences in the molecular composition of the two samples, which is attributed to metabolic effects related to the use of perdeuterated growth media.

From Healthcare Services to E-Health Applications

2017 ◽  
pp. 909-940
Author(s):  
Riccardo Spinelli ◽  
Clara Benevolo
Keyword(s):  
Delivery System ◽  
Healthcare Services ◽  
Structural Features ◽  
Innovative Approach ◽  
Physical Interaction ◽  
Service Provisioning ◽  
New Approach ◽  
Healthcare Practice ◽  
Definition Of ◽  
Health Applications

The increasing adoption of ICT – and especially Internet-based technologies – in healthcare has been very fruitful and has led to the innovative approach to healthcare practice commonly known as e-health. However, the boundaries of this new approach to healthcare are not clear, as it is reflected by the various properties and taxonomies of e-health applications which have been proposed. In this chapter, we first review the definition of e-health and the main taxonomies for its constituents. Then we propose an original taxonomy for e-health applications, based on the structural features of the delivery system of the services which are digitalized: the need for a physical interaction between the subjects involved in the service provisioning and the possibility of delivering the services through Internet-based technology.

The Application of Genetic Algorithms to the Evaluation of Software Reliability

2010 ◽  
pp. 29-49
Author(s):  
Angel Fernando Kuri-Morales
Keyword(s):  
Genetic Algorithms ◽  
Software Reliability ◽  
Optimization Techniques ◽  
Software System ◽  
Adequate Measure ◽  
Practical Tool ◽  
Definition Of ◽  
Modern Optimization ◽  
The Way

The evaluation of software reliability depends on a) The definition of an adequate measure of correctness and b) A practical tool that allows such measurement. Once the proper metric has been defined it is needed to estimate whether a given software system reaches its optimum value or how far away this software is from it. Typically, the choice of a given metric is limited by the ability to optimize it: mathematical considerations traditionally curtail such choice. However, modern optimization techniques (such as Genetic Algorithms [GAs]) do not exhibit the limitations of classical methods and, therefore, do not limit such choice. In this work the authors describe GAs, the typical limitations for measurement of software reliability (MSR) and the way GAs may help to overcome them.

Is cybersecurity eating internet governance? Causes and consequences of alternative framings

2017 ◽  
Vol 19 (6) ◽  
pp. 415-428 ◽  
Author(s):  
Milton Mueller
Keyword(s):  
Design Methodology ◽  
Structural Features ◽  
Joint Production ◽  
Internet Governance ◽  
Security Dilemma ◽  
Content Type ◽  
Governance Models ◽  
Definition Of ◽  
The Relationship ◽  
The Way

Purpose The purpose of this paper is to clarify the relationship between cybersecurity governance and internet governance and to explore the effects of the current tendency for cybersecurity-related discourse to dominate and change the way we approach the established problems of internet governance. Design/methodology/approach The paper demonstrates the centrality of internet connectivity to any definition of cyberspace and to cybersecurity, which clarifies the way internet governance and cybersecurity governance are interdependent. Drawing on classic notions of a security dilemma, the paper also argues for distinguishing between national cybersecurity and societal cybersecurity. Findings Major structural features of the governance problem in cybersecurity and internet governance are analogous. Joint production of internet services and cybersecurity makes them heavily interdependent. This means that cybersecurity governance and internet governance models need to be compatible, and the approach we take to one will influence how we approach the other. Originality/value The interdependence of cybersecurity governance and internet governance has not been carefully examined before, and the relationship is not well understood. These two strands of thinking about cyberspace governance have not been properly connected. This paper bridges the gap and makes policymakers more aware of the potential tensions between a cybersecurity perspective and an internet governance perspective.

scholarly journals The complexity of DNA sequences. Different approaches and definitions

2020 ◽  
Vol 15 (2) ◽  
pp. 313-337
Author(s):  
Vladimir D. Gusev ◽  
Liubov A. Miroshnichenko
Keyword(s):  
Dna Sequences ◽  
Quantitative Characteristic ◽  
Low Complexity ◽  
Structural Features ◽  
General Definition ◽  
Symbolic Sequence ◽  
Different Types ◽  
Definition Of

An important quantitative characteristic of symbolic sequence (texts, strings) is complexity, which reflects at the intuitive level the degree of their "non-randomness". A.N. Kolmogorov formulated the most general definition of complexity. He proposed measuring the complexity of an object (symbolic sequence) by the length of the shortest descriptions by which this object can be uniquely reconstructed. Since there is no program guaranteed to search for the shortest description, in practice, various algorithmic approximations considered in this paper are used for this purpose. Along with definitions of complexity, suggesting the possibility of reconstruction a sequence from its "description", a number of measures are considered that do not imply such restoration. They are based on the calculation of some quantitative characteristics. Of interest is not only a quantitative assessment of complexity, but also the identification and classification of structural regularities that determine its specific value. In one form or another, they are expressed in the demonstration of repetition in the broadest sense. The considered measures of complexity are conventionally divided into statistical ones that take into account the frequency of occurrence of symbols or short “words” in the text, “dictionary” ones that estimate the number of different “subwords” and “structural” ones based on the identification of long repeating fragments of text and the determination of relationships between them. Most of the methods are designed for sequences of an arbitrary linguistic nature. The special attention paid to DNA sequences, reflected in the title of the article, is due to the importance of the object, manifestations of repetition of different types, and numerous examples of using the concept of complexity in solving problems of classification and evolution of various biological objects. Local structural features found in the sliding window mode in DNA sequences are of considerable interest, since zones of low complexity in the genomes of various organisms are often associated with the regulation of basic genetic processes.

scholarly journals CONSTITUTIVE EVALUATIVE CONCEPTS IN CRIMINAL LAW: CONCEPT, TYPES, FUNCTIONS, ESSENTIAL FEATURES

2021 ◽  
Vol 31 (3) ◽  
pp. 450-458
Author(s):  
D.R. Kasimov
Keyword(s):  
Russian Federation ◽  
Criminal Law ◽  
Structural Features ◽  
Criminal Code ◽  
New Classification ◽  
Functional Features ◽  
The Russian Federation ◽  
Definition Of ◽  
Cognitive Meaning

The article provides a new classification of evaluative concepts enshrined in the Criminal Code of the Russian Federation, indicates the purpose of its existence in the doctrine of criminal law. The article describes the definition of constitutive evaluative concepts that are determined as legislatively vague evaluative concepts that, by their normative-essential and functionally-substantive characteristics, are absolute, necessarily alternative, or accompanying structural features of a crime. Through the prism of the features of constitutive evaluative concepts, their varieties, essential features and functions are distinguished; interpretation (including cognitive) meaning is revealed. Moreover, the interpretation features of these evaluative concepts are considered in two interdependent aspects: the structurally-essential (associated with the types, attributes and functions of constitutive evaluative concepts) and the procedural-substantive (associated with the informative and informative activities of the interpreter). It is indicated that the interpretation features of an structurally-essential nature are, firstly, in the composition and criminogenic properties of constitutive evaluative concepts, and secondly, in the semantic structural composition, indicating a meaningful dependence of the evaluative concept on the accompanying structural features of a crime, and thirdly, legally significant functional features. At the same time, interpretative features of a procedural-substantive order are also highlighted, which include, firstly, the need for a paramount definition of the criminogenic determinant, designed to establish the structural features of a crime in a perfect act, and secondly, in an increased degree of normative casuistic derivative of these evaluative concepts. The author comes to the conclusion that constitutive evaluative concepts are interpreted according to the same logical-linguistic and legal laws, but with some marked structurally meaningful features.

scholarly journals Improved high-order adjacent vertex assignment sequence for similarity vertices and isomorphism identification of planar kinematic chains

2020 ◽  
Author(s):  
Liang Sun ◽  
Zhizheng Ye ◽  
Fuwei Lu ◽  
Rongjiang Cui ◽  
Chuanyu Wu
Keyword(s):  
Structural Features ◽  
High Order ◽  
Adjacent Vertex ◽  
Innovative Design ◽  
Kinematic Chains ◽  
Adjacent Point ◽  
Sequence Method ◽  
Definition Of ◽  
Isomorphism Identification ◽  
Specific Definition

Abstract Isomorphism identification is fundamental to synthesis and innovative design of kinematic chains (KCs). The identification can be performed accurately by using the similarity of KCs. However, there are very few researches on isomorphism identification based on the properties of similarity vertices. In this paper, an improved high-order adjacent vertex assignment (IHAVS) sequence method is proposed to seek out the similarity vertices and identify the isomorphism of the planar KCs. First, the specific definition of IHAVS is described. Through the calculation of the IHAVS, the adjacent point value sequence reflecting the uniqueness of the structural features is established. Based on the value sequence, all possible similarity vertices, corresponding relations and isomorphism discrimination can be realized. By checking the topological diagrams of KCs of different number of links, the correctness of the proposed method are verified. Finally, the method is used to find the similarity vertices of all the 9-link 2-DOF(degree of freedom) planar KCs.

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