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“Soft” System of Coordinates in Regular Simplexes
Issue:
Volume 4, Issue 1, February 2015
Pages:
1-7
Received:
28 November 2014
Accepted:
12 December 2014
Published:
26 January 2015
Abstract: In different areas of knowledge, there are common problems of coding and ordering of multicomponent compositions of objects as well as representation of their processes of change. These problems are solved by the language-method RHAT. It can be considered as a coordinate system of regions in space limited by regular simplex. Here R is a sequence of composition components by decrease – names of sectors in the simplex distinguished by hypermedians, a semiquantitative substantial characteristic of compositions, "word" of a new type; H – Shannon information entropy – entropy of mixing; A – anentropy – entropy of separation; T – tolerance. The arrangement of coordinates allows obtaining an alphabetical hierarchical periodic system of compositions (HPSC) of objects of different nature, in particular, the Hierarchical Periodic System of Chemical Compositions (HPSCC) that uses the Periodic System of Elements (PSE) as an alphabet, as well as the Hierarchical Periodic System of Molecular Compositions (HPSMC) that uses HPSCC as an alphabet. Diagrams HA or HT are designed to display random and ordered sets of compositions of any nature as the most appropriate means of studying the processes of separation and mixing. The applicability of the method has been tested on analytical materials in natural and social science fields.
Abstract: In different areas of knowledge, there are common problems of coding and ordering of multicomponent compositions of objects as well as representation of their processes of change. These problems are solved by the language-method RHAT. It can be considered as a coordinate system of regions in space limited by regular simplex. Here R is a sequence of...
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Research on Service Reputation Evaluation Method Based on Cloud Model
Issue:
Volume 4, Issue 1, February 2015
Pages:
8-15
Received:
17 November 2014
Accepted:
15 January 2015
Published:
27 January 2015
Abstract: With the increasingly evident advantages of service-oriented software architecture, Web service received widespread attention, and the numbers of Web Services are increasing constantly. It is more difficult to select high-quality Web service that meets user requirements. Because traditional service reputation evaluation approaches cannot ensure the authenticity and reliability of user ratings, this paper proposes a cloud-based reputation evaluation approach for assessing the history behavior of service consumers, and also takes into account the rating similarity to generate rating quality cloud. With the parameters of cloud model, we can measure the quality level and stability of rankings, which provide additional evidence for trust decision-making. The result of simulating experiments shows that the proposed approach can improve the accuracy of reputation evaluation and the quality of Web service selection, and defend against malicious attacks, so that the interests of service requesters and service providers can be protected.
Abstract: With the increasingly evident advantages of service-oriented software architecture, Web service received widespread attention, and the numbers of Web Services are increasing constantly. It is more difficult to select high-quality Web service that meets user requirements. Because traditional service reputation evaluation approaches cannot ensure the...
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Relationship between Human Characteristics and Adoption of Project Management Information System in Non-Governmental Organizations’ Projects in Nakuru Town (Kenya)
Oyugi Tobias,
Maina Kairu
Issue:
Volume 4, Issue 1, February 2015
Pages:
16-26
Received:
7 January 2015
Accepted:
18 January 2015
Published:
6 February 2015
Abstract: The purpose of this study was to determine the relationship between human characteristics and adoption of project management information system (PMIS) in non-governmental organizations’ projects in Nakuru Town. The independent variable (Human characteristics) was conceptualized into; resistance to change, project management skills, user’s skills and awareness, power struggles and perfectionism. These indicators were individually related with adoption of project management information system. This study adopted both descriptive and correlational design. It was a survey and primary data was collected through structured questionnaires and interviews. Both descriptive and inferential analysis was employed in this study. The research findings were presented through tables. The research findings revealed that one’s competence level in using PMIS, level of training received, willingness to adapt to using PMIS, attitude towards technology and own expectation when using PMIS are positively related with adoption of project management information system. Attitudinal change and support in using the system also appeared to hugely influence adoption of PMIS. The study underscored the analogy that before the management puts pressure on using the system, they must first adopt its usage then spiral it down to subordinates. The study recommended that mentorship and training are critical drivers to successful implementation of PMIS. Training not only should be at the initiation phase of the system but embedded as a continuous skill enhancement and as part of professional development in the organization. A part from training, employees must be motivated and involved at all stages of the implementation process.
Abstract: The purpose of this study was to determine the relationship between human characteristics and adoption of project management information system (PMIS) in non-governmental organizations’ projects in Nakuru Town. The independent variable (Human characteristics) was conceptualized into; resistance to change, project management skills, user’s skills an...
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Hybrid Techniques for Arabic Letter Recognition
Mohamed Hassine,
Lotfi Boussaid,
Hassani Massouad
Issue:
Volume 4, Issue 1, February 2015
Pages:
27-34
Received:
30 August 2014
Accepted:
22 January 2015
Published:
2 February 2015
Abstract: In this paper we investigate the use of the feed-forward back propagation neural networks (FFBPNN) for automatic speech recognition of Arabic letters with their four vowels (Fatha, dhamma, Kasra, Soukoun). This investigation will constitute a basically step for the recognition of continuous Speech. Features were extracted from recorded corpus by using a variety of conventional methods such as Linear Predictive Codes (LPC), Perceptual Linear Prediction (PLP), Relative Spectral Perceptual Linear Prediction (RASTA-PLP), Mel Frequency Cepstral Coefficients (MFCC), Continuous Wavelet Transform (CWT), etc. Here, several hybrid methods have been used too. Since the extracted features have large dimensionalities they were reduced by conserving the most discriminatory information with the Principal Component Analysis (PCA) technique. The recognition performance has been improved particularly when we use the PLP method followed by PCA technique.
Abstract: In this paper we investigate the use of the feed-forward back propagation neural networks (FFBPNN) for automatic speech recognition of Arabic letters with their four vowels (Fatha, dhamma, Kasra, Soukoun). This investigation will constitute a basically step for the recognition of continuous Speech. Features were extracted from recorded corpus by us...
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