Study of Image Analysis Algorithms for Segmentation, Feature Extraction and Classification of Cells
Margarita Gamarra, Eduardo Zurek, Homero San-Juan
J INFORM SYSTEMS ENG, Volume 2, Issue 4, Article No: 20
https://doi.org/10.20897/jisem.201720
Research Article
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ABSTRACT
Recent advances in microcopy and improvements in image processing algorithms have allowed the development of computer-assisted analytical approaches in cell identification. Several applications could be mentioned in this field: Cellular phenotype identification, disease detection and treatment, identifying virus entry in cells and virus classification; these applications could help to complement the opinion of medical experts. Although many surveys have been presented in medical image analysis, they focus mainly in tissues and organs and none of the surveys about image cells consider an analysis following the stages in the typical image processing: Segmentation, feature extraction and classification. The goal of this study is to provide comprehensive and critical analyses about the trends in each stage of cell image processing. In this paper, we present a literature survey about cell identification using different image processing techniques.
Keywords: microscope technology, segmentation, feature extraction, cell image, image processing
Moving ERP Systems to the Cloud - Data Security Issues
Pablo Saa, Andrés Cueva Costales, Oswaldo Moscoso-Zea, Sergio Lujan-Mora
J INFORM SYSTEMS ENG, Volume 2, Issue 4, Article No: 21
https://doi.org/10.20897/jisem.201721
Research Article
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ABSTRACT
This paper brings to light data security issues and concerns for organizations by moving their Enterprise Resource Planning (ERP) systems to the cloud. Cloud computing has become the new trend of how organizations conduct business and has enabled them to innovate and compete in a dynamic environment through new and innovative business models. The growing popularity and success of the cloud has led to the emergence of cloud-based Software-as-a-Service (SaaS) ERP systems, a new alternative approach to traditional on-premise ERP systems. Cloud-based ERP has a myriad of benefits for organizations. However, infrastructure engineers need to address data security issues before moving their enterprise applications to the cloud. Cloud-based ERP raises specific concerns about the confidentiality and integrity of the data stored in the cloud. Such concerns that affect the adoption of cloud-based ERP are based on the size of the organization. Small to medium enterprises (SMEs) gain the maximum benefits from cloud-based ERP as many of the concerns around data security are not relevant to them. On the contrary, larger organizations are more cautious in moving their mission critical enterprise applications to the cloud. A hybrid solution where organizations can choose to keep their sensitive applications on-premise while leveraging the benefits of the cloud is proposed in this paper as an effective solution that is gaining momentum and popularity for large organizations.
Keywords: ERP, cloud computing, cloud ERP, data security, confidentiality, integrity
E-waste Management in Portugal: Legislation, Practices and Recommendations
Célio Gonçalo Marques, Vasco Gestosa da Silva
J INFORM SYSTEMS ENG, Volume 2, Issue 4, Article No: 22
https://doi.org/10.20897/jisem.201722
Research Article
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The use of electrical and electronic devices has grown exponentially in the last years thanks to technological advances and its wide dissemination. Consequently, the number of obsolete equipment (electronic waste or e-waste) has also increased significantly, becoming a major problem for society. This paper deals with electronic waste and explains the concept and risks for the particular case of Portugal. Measures to reduce the problem such as legislation, education production R&D and social responsibility are also discussed. And finally, a survey is presented which was carried out in two Portuguese Higher Education institutions with a view to determining students' awareness, attitudes and opinions on this matter.
Keywords: ICT management, e-waste, Portugal, higher education, legislation, environment, sustainability
A Case Study on the Strategy of Maintaining Commercial Software with a Large Number of Users
Hellen Christine Seródio Thomazinho, Alexandre L’Erário, José Augusto Fabri
J INFORM SYSTEMS ENG, Volume 2, Issue 4, Article No: 23
https://doi.org/10.20897/jisem.201723
Research Article
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ABSTRACT
Software maintenance is the activity in which changes occur in the artifacts of a software after delivery, with the purpose of keeping it available, correcting its failures, improving its performance and adapting it to new or modified requirements, according to the needs of Your users. It is an indispensable activity, without which existing systems would quickly become lagging and inefficient for organizations. The objective of this work is to verify the adherence of existing software maintenance models and processes in an organization whose product is used by a large number of users. After identifying and evaluating the problems of the company's current situation, carried out through a case study, actions are suggested to improve its software maintenance process.
Keywords: software maintenance, case study
The Impact of Human Factors on the Software Testing Process: The Importance of These Factors in a Software Testing Environment
Wellington F. Gonçalves, Carlos B. de Almeida, Leonardo L. de Araújo, Mateus S. Ferraz, Rogerio B. Xandú, Ivaldir de Farias Junior
J INFORM SYSTEMS ENG, Volume 2, Issue 4, Article No: 24
https://doi.org/10.20897/jisem.201724
Research Article
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Software testing is a key process that ensures a reliable quality product, and like other activities in the development process, have a wide range of tools available, but still requires a lot of human work, where the final quality of the software can be impacted directly by several factors. In this sense, this study aims to identify the human factors (cognitive, operational and organizational) present in the test process and to define the influence of these factors during their execution. Thus, the article presents a study with quantitative methods and techniques of the survey type, in which 112 professionals from the test area participated in 17 Brazilian states. The results provide a set of human factors that correlate with the final quality of a software product or service.
Keywords: software testing; human factors; software quality
Using the Characteristics of Documents, Users and Tasks to Predict the Situational Relevance of Health Web Documents
Melinda Oroszlányová, Carla Teixeira Lopes, Sérgio Nunes, Cristina Ribeiro
J INFORM SYSTEMS ENG, Volume 2, Issue 4, Article No: 25
https://doi.org/10.20897/jisem.201725
Research Article
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Relevance is usually estimated by search engines using document content, disregarding the user behind the search and the characteristics of the task. In this work, we look at relevance as framed in a situational context, calling it situational relevance, and analyze whether it is possible to predict it using documents, users and tasks characteristics. Using an existing dataset composed of health web documents, relevance judgments for information needs, user and task characteristics, we build a multivariate prediction model for situational relevance. Our model has an accuracy of 77.17%. Our findings provide insights into features that could improve the estimation of relevance by search engines, helping to conciliate the systemic and situational views of relevance. In a near future we will work on the automatic assessment of document, user and task characteristics.
Keywords: health information retrieval, web, situational relevance
Practical Validation of Economic Efficiency Modelling Method for Multi-Boiler Heating System
Aleksejs Jurenoks, Svetlana Jurenoka, Leonids Novickis
J INFORM SYSTEMS ENG, Volume 2, Issue 4, Article No: 26
https://doi.org/10.20897/jisem.201726
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In up-to-date conditions information technology is frequently associated with the modelling process, using computer technology as well as information networks. Statistical modelling is one of the most widespread methods of research of economic systems. The selection of methods of modelling of the economic systems depends on a great number of conditions of the researched system. Modelling is frequently associated with the factor of uncertainty (or risk), who’s description goes outside the confines of the traditional statistical modelling, which, in its turn, complicates the modelling which, in its turn, complicates the modelling process. This article describes the modelling process of assessing the economic efficiency of a multi-boiler adaptive heating system in real-time systems which allows for dynamic change in the operation scenarios of system service installations while enhancing the economic efficiency of the system in consideration.
Keywords: adaptive system, model, simulation modelling, optimization
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