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Brazilian Symposium on Software engineering (SBES)

作者： Marcelo Schots Cl'udia Werner Manoel Mendonça Systems Engineering and Computing Program COPPE Federal University of Rio de Janeiro Rio de Janeiro Brazil Computer Science Department Federal University of Bahia Rio de Janeiro Brazil

The creation of tools, techniques and methodologies to support the manipulation of large data sets has been receiving special attention of both scientific and industrial communities, in order to discover new ways of dealing with the underlying information, including learning purposes, identification of patterns, decision making support, amongst others. However, making use of computing resources to enhance awareness and understanding of software information and the software itself is still a challenge in software/systems engineering, since it involves the identification of suitable mechanisms, adequate abstractions, and studies on stimulation of the human perceptive and cognitive abilities. This paper presents some of the challenges in this context, based on current trends of software development lifecycle, program comprehension, and software engineering education. At the end, a special focus is given on ongoing research on using and improving current mechanisms for supporting software reuse practices and software comprehension in general.

关键词： Software Software engineering Education Visualization Conferences Industries Data visualization

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Device Interoperability and Authentication for Telemedical Appliance based on the ISO/IEEE 11073 Personal Health Device (PHD) Standards

Device Interoperability and Authentication for Telemedical A...

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Annual International Conference of the IEEE engineering in Medicine and Biology Society

作者： Luther Paul R. Caranguian Susan Pancho-Festin Luis G. Sison a graduate student in the MS Electrical Engineering (Instrumentation and Control) program of University of the Philippines Diliman. Festin is with the Department of Computer Science University of the Philippines Diliman. with the Electrical and Electronics Engineering Institute University of the Philippines Diliman.

ISBN: (纸本)9781424441198

In this study, we focused on the interoperability and authentication of medical devices in the context of telemedical systems. A recent standard called the ISO/IEEE 11073 Personal Health Device (X73-PHD) Standards addresses the device interoperability problem by defining common protocols for agent (medical device) and manager (appliance) interface. The X73-PHD standard however has not addressed security and authentication of medical devices which is important in establishing integrity of a telemedical system. We have designed and implemented a security policy within the X73-PHD standards. The policy will enable device authentication using Asymmetric-Key Cryptography and the RSA algorithm as the digital signature scheme. We used two approaches for performing the digital signatures: direct software implementation and use of embedded security modules (ESM). The two approaches were evaluated and compared in terms of execution time and memory requirement. For the standard 2048-bit RSA, ESM calculates digital signatures only 12% of the total time for the direct implementation. Moreover, analysis shows that ESM offers more security advantage such as secure storage of keys compared to using direct implementation. Interoperability with other systems was verified by testing the system with LNI Healthlink, a manager software that implements the X73-PHD standard. Lastly, security analysis was done and the system's response to common attacks on authentication systems was analyzed and several measures were implemented to protect the system against them.

关键词： Interoperability Telemedical Authentication

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Design Pattern Usage in Grid Computing

Design Pattern Usage in Grid Computing

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International Conference on Broadband, Wireless Computing, Communication and Applications (BWCCA)

作者： Markus Aleksy Makoto Takizawa Leonard Barolli Industrial Software System Program ABB Corporate Research Center Germany Germany Department of Computer and Information Science Seikei University Tokyo Japan Department of Information and Communication Engineering Fukuoka Institute of Technology Fukuoka Japan

The recent advances in Grid and Cloud computing make new types of applications possible. At the same time, they require an infrastructure to implement heterogeneous computing resources time and cost-savely. Here, approaches that utilize design patterns, i.e., proven solutions to existing problems, seem to provide a good approach to enable these kind of applications. In this paper, we investigated which design patterns are already used in the area of Grid computing nowadays. After a brief description of the literature study design, we present our findings which include the discovered design patterns, corresponding categories, and application areas.

关键词： Grid computing Parallel processing Cloud computing Conferences Concurrent computing USA Councils

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Disease Risk Prediction by Mining Personalized Health Trend Patterns: A Case Study on Diabetes

Disease Risk Prediction by Mining Personalized Health Trend ...

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International Conference on Technologies and Applications of Artificial Intelligence (TAAI)

作者： Guo-Cheng Lan Chao-Hui Lee Yu-Yen Lee Vincent S. Tseng Jin-Shang Wu Chu-Yu Chin Miin-Luen Day Shyh-Chyi Wang Ching-Nain Chang Shyr-Yuan Cheng Computer Science Information Engineering National Cheng Kung University Tainan Taiwan Telecommunication Laboratories Chunghwa Telecom Co.Ltd. Yangmei Taiwan Department of Family Medicine National Cheng Kung University Hospital Tainan Taiwan

Health examination has played an important role for maintaining people's health since it can not only help people understand their own health conditions clearly but also avoid missing the best timing of disease treatment. However, in current health examination systems, people get only a basic report from single health examination and no advanced health risk analysis is provided. In this paper, we proposed an effective mechanism for chronic disease risk prediction by mining the data containing historical health records and personal life style information. Value change trends of the data are important for disease status prediction, and we defined significant ones as health risk patterns in our mechanism. Risks of a chronic disease can be predicted early with a mechanism built with our health risk patterns and it also proven work well through experimental evaluations on real datasets. Our method outperformed traditional mechanism in terms of accuracy, precision and sensitivity for predicting the risk of diabetes. In particular, insightful observations show that the consideration of life-style information can effectively enhance whole performance for risk prediction. Moreover, classification rules produced by our mechanism which integrates C4.5 and CBA provide physicians disease related health risk patterns such that appropriate treatments could be given to people for disease prevention.

关键词： Diseases Diabetes Databases Predictive models Market research Data mining Sugar

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Evaluation of surface roughness standards applying Haralick parameters and Artificial Neural Networks

Evaluation of surface roughness standards applying Haralick ...

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International Conference on Systems, Signals and Image Processing, IWSSIP

作者： Marcelo L. Alves Esteban Clua Fabiana R. Leta Instituto Nacional de Metrologia e Qualidade-Inmetro Rio de Janeiro Brazil Computer Science Department Universidade Federal Fluminense Niteroi Brazil Mechanical Engineering Department Mechanical Engineering Post-Graduation Program Universidade Federal Fluminense Niteroi Brazil

This paper presents a methodology for roughness analysis based on surface characteristics of images obtained from optical and electronic microscopes. Texture analysis has been widely used in different fields, such as medical image analysis, visual interpretation of remote sensing images, image search and industrial quality inspection of manufactured products, which is the focus of this paper. We present a novel method of analysis based on texture characteristics. The Haralick descriptors are used to describe the surface texture and to classify its roughness. The primary roughness standards are evaluated and classified according to several features considering these descriptors. The set of values is the input of a multilayer perceptron artificial neural network. The obtained results show that it can be possible to advance this methodology in order to develop a roughness digital measurement system for the evaluation of surface ending process.

关键词： Rough surfaces Surface roughness Artificial neural networks Training Feature extraction Optical surface waves Surface treatment

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The development of a database for radiolarian assemblages from the Kalur Cherts of Albania

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International Journal of computer science Issues 2012年第3 3-2期9卷 459-465页

作者： Bejleri, Ariana Myftiu, Marlind Prela, Mensi Biberaj, Aleksander Computer Engineering Department Faculty of Information Technology Polytechnic University of Tirana Tirana Albania IT Department Albanian Parliament Tirana Albania Earth Science Department Faculty of Geology and Mining Polytechnic University of Tirana Tirana Albania Electronic and Telecommunication Department Faculty of Information Technology Polytechnic University of Tirana Tirana Albania

The present paper deals with the development of a database in order to manage all the data regarding the well-preserved radiolarian assemblages from the Kalur Cherts of Albania. This data are reported from 18 chert sections belonging to the siliceous sedimentary cover of the ophiolites of the Mirdita Zone (Albania). The database is developed through the application of the MS-ACCESS program and SQL language programming. It creates the possibility to add and edit data from different users in a simple and friendly way, by using the interactive forms. Furthermore, we can use different queries to find every needed information. The data obtained from the chert sections, contributes to better understand the picture of siliceous deposition in Albania. The investigated data regarding the occurrence and abundance of different radiolarian forms indicate that the major part of species in the radiolarian assemblages from the Kalur Cherts of Albania are typical of the chert sections of Japan. © 2012 International Journal of computer science Issues.

关键词： Database systems

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Fuzzy Logic Election of Node for Routing in WSNs

Fuzzy Logic Election of Node for Routing in WSNs

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IEEE International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom)

作者： Shaik Sahil Babu Arnab Raha Mrinal Kanti Naskar Omar Alfandi Dieter Hogrefe Department of Electronics and Telecommunication Engineering Jadavpur University Kolkata West Bengal India Institute of Computer Science Sensor Laboratory Telematics Group Georg-August-Universität Göttingen Gottingen Germany College of Information Technology Zayed University UAE

ISBN: (纸本)9781467321723

Sensor nodes of Wireless Sensor Networks (WSNs) are resource constraints in energy, memory, processing and communication bandwidth. Since they are operated by battery, their life span is limited. Specially, energy conservation is very important issue in the WSN, because it directly affects the life of the node as well as the entire network. Here, we develop a new way of electing a node among many trustworthy nodes for routing processes. This method consumes the energies of network nodes based on Fuzzy logic applied on their residual energy, trust level and distance from the Base Station. The proposed method elects one indispensible node for participating in routing among many worthy nodes. Hence, this method of election of node for routing in WSN sees the conservation of nodes energies go by very smooth and justifying, thereby increasing the life of the WSN.

关键词： Wireless sensor networks Routing Fuzzy logic Databases Routing protocols Energy states Nominations and elections

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Lung nodules classification in CT images using Shannon and Simpson Diversity Indices and SVM 1

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8th International Conference on Machine Learning and Data Mining in Pattern Recognition, MLDM 2012

作者： Nascimento, Leonardo Barros De Paiva, Anselmo Cardoso Silva, Aristófanes Corrêa Federal University of Maranhão - UFMA Post-graduate Program in Engineering of Electricity Campus Do Bacanga Av. dos Portugueses SN Bacanga 65085-580 São Luis MA Brazil Federal University of Maranhao - UFMA Department of Computer Science Campus Do Bacanga Av. dos Portugueses SN Bacanga 65085-580 Sao Luís MA Brazil

ISBN: (数字)9783642315374

ISBN: (纸本)9783642315367

In this work, we present the use of Shannon and Simpson Diversity Indices as texture descriptors for lung nodules in computerized Tomography (CT) images. These indices will be proposed to characterize the nodules into two classes: benign or malignant. The investigation is done using the Support Vector Machine (SVM) for classification in a dataset consisting of 73 nodules, 47 benign and 26 malignant;the results of the methodology were: sensitivity of 85.64%, specificity of 97.89% and accuracy of 92.78%. © 2012 Springer-Verlag.

关键词： Support vector machines

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A brain-machine interface to navigate mobile robots along human-like paths amidst obstacles

A brain-machine interface to navigate mobile robots along hu...

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2012 IEEE/RSJ International Conference on Intelligent Robots and Systems

作者： Abdullah Akce James Norton Timothy Bretl Department of Computer Science University of Illinois Urbana-Champaign Urbana IL USA Neuroscience Program University of Illinois Urbana-Champaign Urbana IL USA Department of Aerospace Engineering University of Illinois Urbana-Champaign Urbana IL USA

ISBN: (纸本)9781467317375

This paper presents an interface that allows a human user to specify a desired path for a mobile robot in a planar workspace with noisy binary inputs that are obtained at low bit-rates through an electroencephalograph (EEG). We represent desired paths as geodesics with respect to a cost function that is defined so that each path-homotopy class contains exactly one (local) geodesic. We apply max-margin structured learning to recover a cost function that is consistent with observations of human walking paths. We derive an optimal feedback communication protocol to select a local geodesic-equivalently, a path-homotopy class-using a sequence of noisy bits. We validate our approach with experiments that quantify both how well our learned cost function characterizes human walking data and how well human subjects perform with the resulting interface in navigating a simulated robot with EEG.

关键词： Navigation Cost function Mobile robots Humans Electroencephalography Protocols

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Development Model for Knowledge Management System (KMS) to Improve University's Performance (Case Studies in Indonesia University of Education)

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International Journal of computer science Issues 2012年第1 1-1期9卷 1-6页

作者： Munir Rohendi, Dedi Study Program of Computer Science Faculty of Mathematics and Sciences Education Indonesia University of Education Bandung Indonesia Mechanical Engineering Education Department Faculty of Technology and Vocational Education Indonesia University of Education Bandung Indonesia

Knowledge Management System (KMS) is one way to organize and documented the knowledge of institution. The purpose of this study is to develop a prototype KMS in organizing and documenting the knowledge in the university and to do a document aggregation based on the total number, subjects and writers (lecturers). The development method of KMS prototype is using sharepoints which are able to collect, store and publish all digital data available at the university which can be accessed online. Aggregation is using the percentage between the number of documents, subjects, and writers (lecturers). The aggregation's result between the number of digital files compared to the number of courses and the number of lecturers are each below 10%. In the future, the university still needs to encourage all lecturers or academic community to increase the collection of digital files that can indirectly improve the quality and educational services. © 2012 International Journal of computer science Issues.

关键词： Knowledge based systems

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