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4th International Conference on Data Management Technologies and Applications, DATA 2015

作者： Tuna, Ayse Das, Resul Tuna, Gurkan School of Foreign Languages Trakya University Edirne Turkey Department of Software Engineering Firat University Elazig Turkey Department of Computer Programming Trakya University Edirne Turkey

ISBN: (纸本)9789897581038

Smart Home is indeed a broad concept which includes the techniques and systems applied to living spaces. While its main goal is to reduce the consumption of energy, it provides many benefits including living in comfort, security and increasing flexibility. Smart homes are achieved through networking, control and automation technologies. Since smart homes offer more comfort and security and provide novel innovative services, people with disabilities or the elderly can take the advantages and improve their life quality. However, for such novel services, an analytical infrastructure which can manage overall data flow provided by various sensors, understand anomalous behaviour, and make necessary decisions. In this study, for efficient data handling and visualisation, an integrated smart service approach based on the use of a smart vest is proposed. The smart vest plays a key role in the proposed system since it provides the main health parameters of the monitored person to the smart home service and enables tracking of the monitored person's location. The proposed system offers many benefits to both people with disabilities and the elderly and their families in terms of increased efficiency of health care service and comfort for the monitored person. It can also reduce the cost of health care services by reducing the number of periodical visits.

关键词： Wearable technology

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Partial Trade-Credit Policy of Retailer with Exponentially Deteriorating Items

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International Journal of Applied and Computational Mathematics 2015年第3期1卷 343-368页

作者： Sarkar, Biswajit Saren, Sharmila Department of Industrial & Management Engineering Hanyang University Ansan 426 791 Gyeonggi-do South Korea Department of Applied Mathematics with Oceanology and Computer Programming Vidyasagar University Midnapore 721 102 India

This model considers the strategy that supplier offers retailer a full trade-credit policy whereas retailer offers their customers a partial trade-credit policy. For such assumption, retailer can earn more profits. In this supplier–retailer model, deterioration of products is assumed as exponential. The main purpose is to minimize the retailer’s annual total cost with finite replenishment rate. Graphical representations are given under different circumstances. The analytical derivation of the model is given to obtain the minimum cost. Some numerical examples for different cases are provided to illustrate the model. © 2014, Springer India Pvt. Ltd.

关键词： Inventory Trade-credit policy Variable deterioration

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Wireless sensor network-based communication for cooperative simultaneous localization and mapping

Wireless sensor network-based communication for cooperative ...

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作者： Tuna, Gurkan Gungor, Vehbi Caʇri Potirakis, Stelios M. Zeadally, Sherali Department of Computer Programming Trakya University Edirne Turkey Department of Computer Engineering Bahçeşehir University Besiktas Istanbul34353 Turkey Department of Computer Engineering Abdullah Gül University Kayseri38039 Turkey Department of Electronics Engineering Technological Education Institute of Piraeus Aigaleo Greece Akademi Ar-GeYazilim Ve Muhendislik Erciyes Teknopark A.Ş. Kayseri38039 Turkey

This paper presents a novel approach of using a Wireless Sensor Network (WSN) as the communication means for Multi-Robot, Cooperative, Simultaneous Localization and Mapping (CSLAM) applications investigating the associated design challenges and suggesting corresponding solutions. Although the proposed approach brings several benefits including an increased coverage and communication range, self-organization capabilities, quick deployment, and flexible architecture, the realization is interrelated with performance in terms of energy efficiency and reliability. In this respect, the applicability of the WSNs for the presented approach is investigated. Centralized and distributed map merging methods in WSN-based CSLAM are evaluated in detail and the impacts of packet delays and losses on the performance of CSLAM algorithms are shown. Additionally, the involved network congestion and contention dynamics are presented, while the effects of observation range, speed, time intervals between observations, and odometry readings on the SLAM accuracy are shown based on an extensive set of simulation studies. © 2014 Elsevier Ltd. All rights reserved.

关键词： Wireless sensor networks

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Multi-path route discovery algorithm for cognitive radio ad hoc networks using algebraic connectivity

Multi-path route discovery algorithm for cognitive radio ad ...

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International Conference on Telecommunications and Signal Processing (TSP)

作者： Erkan Güler Zhaleh Sadreddini Tuğrul Çavdar Department of Computer Programming Giresun University Giresun Turkey Department of Computer Engineering AVRASYA University Trabzon Turkey Department of Computer Engineering Karadeniz Technical University Trabzon Turkey

Cognitive Radio Technology has brought new insights to the problems of spectrum scarcity and inefficiency, in which spectrum holes are opportunistically accessed when the licensed users (primary users) are not using the frequencies that are assigned to those users. In this paper, we propose a multi-path route discovery algorithm for cognitive radio ad hoc networks (CRAHN) using algebraic connectivity. The employed routing mechanism takes into account the impact of the primary users on the non-licensed users (secondary users) in a way that the secondary users choose the paths which are less affected by the non-licensed users. With regard to proposed route discovery algorithm, data traffic congestions are tried to be avoided in the secondary network by reducing the number of all possible paths from source to destination. The results show that the devised method overcomes the technique of the route request (RREQ) message flooding between a source and a destination.

关键词： Routing Routing protocols Topology Cognitive radio Ad hoc networks Laplace equations Interference

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PSO-optimized Instant Overbooking Framework for cognitive radio networks

PSO-optimized Instant Overbooking Framework for cognitive ra...

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International Conference on Telecommunications and Signal Processing (TSP)

作者： Zhaleh Sadreddini Erkan Güler Tuğrul Çavdar Department of Computer Engineering AVRASYA University Trabzon Turkey Department of Computer Programming Giresun University Giresun Turkey Department of Computer Engineering Karadeniz Technical University Trabzon Turkey

Nowadays, the emerging wireless communication technologies cause rapid growth in radio spectrum usage. However, the radio spectrum is a limited resource and has almost been fully assigned by the current network operators (NOs). Although numerous studies have been accomplished on the spectrum management, there are rare evolutionary techniques dealing with booking spectrum on cognitive radio. Instant Overbooking Framework for Cognitive Radio networks (IOFCR) is used to maximize both spectrum utilization and the revenue of NOs under several over-booking and pricing policies. In such a network, when a primary user (PU) activity is sensed, the control of which requesting secondary users (SUs) can be denied and which Active SUs can be ejected is managed by IOFCR. In this paper, the Particle Swarm Optimization (PSO) algorithm is applied into the IOFCR to find optimal values of the over-booking price and the Compensation Cost (CC) ratio to optimize revenue and achieve high performance.

关键词： Pricing Cognitive radio Particle swarm optimization Dynamic spectrum access Radio spectrum management FCC

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Common network attack types and defense mechanisms

Common network attack types and defense mechanisms

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IEEE Signal Processing and Communications Applications (SIU)

作者： Resul Daş Abubakar Karabade Gurkan Tuna Department of Software Engineering Firat Univ. Elazığ Turkey Department of Computer Programming Trakya University Edirne Turkey

For every organization having a well secured network is the primary requirement to reach their goals. A network is said to be secure if it can protect itself from sophisticated attacks. Due to the rapid increase in the number of network users, security becomes the main challenge in the area of network field. Most security related threats target the layers of the OSI reference model. Sophisticated attack types such as Distributed Denial of Service (DDoS), Man-in-the-Middle and IP spoofing attacks are used to attack these layers. In this paper, we analyze most of the attack types that cause serious problems in computer networks and defense techniques to stop or prevent these attacks.

关键词： computer crime IP networks Servers Switches Ports (computers)

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A Comparative Study Between Inventory Followed by Shortages and Shortages Followed by Inventory Under Trade-Credit Policy

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International Journal of Applied and Computational Mathematics 2015年第3期1卷 399-426页

作者： Khanra, S. Mandal, Buddhadev Sarkar, B. Department of Mathematics Tamralipta Mahavidyalaya Purba Medinipur Tamluk 721 636 India Department of Applied Mathematics with Oceanology and Computer Programming Vidyasagar University Midnapore 721 102 West Bengal India Department of Industrial & Management Engineering Hanyang University Ansan 426 791 Gyeonggi-do South Korea

This paper deals with a comparison between inventory followed by shortages model and shortages followed by inventory model with variable demand rate. It is assumed that the stock deteriorates over time which follows a two parameter Weibull distribution. Both the models are assumed fixed trade credit period to the retailer from the supplier. The model is solved analytically and the results are illustrated with numerical examples. © 2015, Springer India Pvt. Ltd.

关键词： Comparative study Permissible delay-in-payments Probabilistic deterioration Variable demand

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Emerging technologies for improving embryo selection: a systematic review

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Advanced Health Care Technologies 2015年 1卷 55-64页

作者： Sengul, Yasemin Bener, Ayse Uyar, Asli 1 Computer Programming Program Advanced Vocational Studies Dogus University Acibadem Kadikoy Istanbul Turkey 2 Data Science Laboratory Department of Mechanical and Industrial Engineering Ryerson University Toronto ON Canada 3 Department of Computer Engineering Okan University Tuzla Istanbul Turkey

Background: Embryo selection procedure is one of the critical success factors in in vitro fertilization treatment. Various embryo selection technologies have emerged within the past decade. These technologies are either used in combination with morphology or introduced to replace the conventional morphological evaluation. This review aims at investigating the effect of these novel embryo selection technologies on in vitro fertilization success rates. Methods: A systematic review of the literature was performed among full-text English articles in the PubMed database. Study selection was based on the predefined inclusion and exclusion criteria. Clinical effectiveness of the selected studies was measured in terms of implantation, pregnancy, live birth, and multiple pregnancy rates. Results: Five studies were identified that fitted the inclusion criteria. In these studies, researchers used aneuploidy screening, metabolomic profiling, and time-lapse imaging analysis as the new technologies. Among these studies, the one that conducted a randomized controlled trial of a commercial time-lapse imaging system demonstrated significant improvement in implantation rate. Conclusion: Studies using emerging technologies for embryo assessment provide promising results in retrospective analysis. On the other hand, randomized controlled trial studies that test the efficacy of novel embryo selection techniques in clinical practice failed to demonstrate a consistent improvement in the resulting success rates. This review provides a snapshot of the most recent literature on embryo assessment and embryo selection studies. Our findings show that there is a lack of comparative measurements and analyses that are able to assess benefits of the novel technologies in the field of embryo selection.

关键词： embryo selection in vitro fertilization IVF

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Information security threats and an easy-to-implement attack detection framework for wireless sensor network-based smart grid applications

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IOP Conference Series: Materials Science and engineering 2016年第1期108卷

作者： G Tuna H Örenbaş R Daş D Kogias M Baykara K K Department of Computer Programming Trakya University Edime Turkey Department of Software Engineering Firat University Elazig Turkey Department of Electronics Engineering Piraeus University of Applied Sciences Aigaleo Greece Department of Control and Automation Engineering Yildiz Technical University Istanbul Turkey

Wireless Sensor Networks (WSNs) when combined with various energy harvesting solutions managing to prolong the overall lifetime of the system and enhanced capabilities of the communication protocols used by modern sensor nodes are efficiently used in are efficiently used in Smart Grid (SG), an evolutionary system for the modernization of existing power grids. However, wireless communication technology brings various types of security threats. In this study, firstly the use of WSNs for SG applications is presented. Second, the security related issues and challenges as well as the security threats are presented. In addition, proposed security mechanisms for WSN-based SG applications are discussed. Finally, an easy- to-implement and simple attack detection framework to prevent attacks directed to sink and gateway nodes with web interfaces is proposed and its efficiency is proved using a case study.

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Emphysema Discrimination from Raw HRCT Images by Convolutional Neural Networks

Emphysema Discrimination from Raw HRCT Images by Convolution...

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International Conference on Electrical and Electronics engineering

作者： Esra Mahsereci Karabulut Turgay Ibrikci Gaziantep University Computer Programming Department 27310 Sahinbey Gaziantep Turkey Cukurova University Electrical-Electronics Engineering Department 01330 Balcah Adana Turkey

ISBN: (纸本)9781467379120

Emphysema is a chronic lung disease that causes breathlessness. HRCT is the reliable way of visual demonstration of emphysema in patients. The fact that dangerous and widespread nature of the disease require immediate attention of a doctor with a good degree of specialized anatomical knowledge. This necessitates the development of computer-based automatic identification system. This study aims to investigate the deep learning solution for discriminating emphysema subtypes by using raw pixels of input HRCT images of lung. Convolutional Neural Network (CNN) is used as the deep learning method for experiments carried out in the Caffe deep learning framework. As a result, promising percentage of accuracy is obtained besides low processing time.

关键词： HRCT CNN Emphysema

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