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International Conference on Information Fusion

作者： Almir Antônio Monteiro Junior Diego Brandão Felipe Da Rocha Henriques Claudio M. De Farias Pedro Henrique González System Engineering and Computer Science Program Federal University of Rio de Janeiro Rio de Janeiro Brazil Computer Science Postgraduate Program Federal Center for Technological Education of Rio de Janeiro Rio de Janeiro Brazil

ISBN: (数字)9781737749769

ISBN: (纸本)9798350371420

This study addresses the Wireless Sensor Network Planning Problem with Multiple Sources/Destinations (WSNPMSD), an optimization challenge focused on reducing the sensor count within a network topology for a specified area, considering numerous sources and destinations. We introduce a hybrid strategy for tackling WSNP-MSD, particularly effective for large-scale scenarios, combining a Biased Random-key Genetic Algorithm with a Local Branching Technique. This methodology is justified by the limitations exact methods may encounter when the number of variables increases. Through computational experiments, we demonstrate the superiority of our proposed method over conventional exact methods in managing large instances of the WSNP-MSD.

关键词： Wireless communication Wireless sensor networks Network topology Planning Optimization Genetic algorithms

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An Island-Based Hybrid Evolutionary Algorithm for Caloric-Restricted Diets

Research Square

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Research Square 2021年

作者： Silva, João Gabriel R. Duarte, Grasiele R. Carvalho, Iago A. Goliatt, Leonardo Vieira, Vinicius F. Xavier, Carolina R. IFMT Brazil Computational Modeling Federal University of Juiz de Fora Brazil Civil Engineering Program COPPE Federal University of Rio de Janeiro Brazil Computer Science Program Federal University of Minas Gerais Brazil Computer Science Program Federal University of Sao Joao del Rei Brazil

The most popular and successful way to maintain a healthy body is to have a rich and balanced diet, combined with physical exercise. Since it was proposed the diet dilemma, several works in the literature suggested calculating a diet that respects an individual’s nutritional needs. In the Caloric-Restricted Diet Problem (CRDP), the goal is to find a reduced-calorie diet that meets an individual’s dietary needs aiming for weight loss. This paper proposes a Hybrid Island-Based Evolutionary Algorithm (IBHEA) that combines a Genetic Algorithm (GA) with a Differential Evolution (DE) communicating through a migration policy to solve the CRDP. Computational experiments showed that IBHEA outperforms the non-distributed and non-hybrid implementations, generating a greater variety of diets with a small calorie count. © 2021, CC BY.

关键词： Nutrition

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Surgical Instrument Detection for Laparoscopic Surgery using Deep Learning 19

Surgical Instrument Detection for Laparoscopic Surgery using...

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19th International Conference on Electrical engineering/Electronics, computer, Telecommunications and Information Technology, ECTI-CON 2022

作者： Boonkong, Apiwat Hormdee, Daranee Sonsilphong, Suphachoke Khampitak, Kovit Khon Kaen University Embedded System RandD Group Computer Engineering Khon Kaen Thailand Khon Kaen University Data Science and Health Informatics Program Academic Affairs Khon Kaen Thailand Khon Kaen University Faculty of Medicine Department of Obstetrics and Gynecology Khon Kaen Thailand

ISBN: (纸本)9781665485845

Laparoscopic surgery has transformed conventional open surgery. Robot-Assisted laparoscopic surgery which is minimally invasive is effective for operations in limited space. Nevertheless, the robotic system which is utilized in such surgery can inflict impair to the surgical instruments, organs, or tissues as a consequence of the narrow field of view and space available to operate, and insufficient tactile response. In laparoscopy, the surgeon observes what he operates via digital images which are displayed on a monitor. In addition to the surgeon's expertise, the image-guided surgery system could offer him significant support if that system is capable of understanding those images. computer Vision has been able to proceed due to the emergence of Machine Learning, and especially Deep Learning. This paper applies Deep Learning for surgical instrument detection for laparoscopic surgery. The fastest model, based on results trained on the COCO 2017 Dataset on TensorFlow Framework, for each of 4 algorithms-Faster-RCNN, SSD, CenterNet and EfficientDet-from Model Zoo, along with YOLOv4 on Darknet Framework, have been investigated in this work. The evaluation metrics used are Precision, Recall and F1-score. The results reveal that each model plays its part well;however, YOLOv4 seemed to breakthrough this statement by offering grate result for all three accuracy metrics. © 2022 IEEE.

关键词： Laparoscopy

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MULTITAPE AFA

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JOURNAL OF THE ACM 1972年第2期19卷 193-&页

作者： GREIBACH, S GINSBURG, S University of California at Los Angeles Los Angeles California Department of System Science Los Angeles CA University of Southern California Computer Science Program Olin Hall of Engineering Los Angeles CA

Device representations, via multitape AFA (abstract families of acceptors), are given for the families of languages which result from applying the wedge (A) m)d the substitution operations to AFL (abstract families of languages). In particular, if ~ and ~2 are multitape AFA (i.e. certain families of multistorage tape acceptors), then 5)~ A ~2 is defined as the family of multitape acceptors which results when the tapes of ~ and ~2 are coalesced, with the ~-tapes preceding those in ~2. It is shown that the smallest full AFL containing 2(~) A 2 (~D2) = {L~ N L2 ILi in2 (~Di) } is, 12 (~ h~:). For each multitape AFAr, aset ~.v of “nested” multitape acceptors is defined. It is shown that if ~ and ~2 are single-tape AFA, then the family of languages obtained from (~ A ~2) N is the family of langnages obtained by substituting the AFL defined by ~2 into the AFL defined by ~D~. © 1972, ACM. All rights reserved.

关键词： acceptors AFL theory formal languages intersection multistorage tapes substitution

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Initial Study of Oil Palm Crop Condition Detection Through Drone Imagery: A YOLO Approach

Initial Study of Oil Palm Crop Condition Detection Through D...

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International Conference on Informatics, Multimedia, Cyber and Information system (ICIMCIS)

作者： Winata Nugraha Ermatita Deris Stiawan Faculty of Computer Science Doctoral Program Faculty of Engineering Universitas Sriwijaya Palembang Indonesia Department of Information System Universitas Sriwijaya Palembang Indonesia Faculty of Computer Science Universitas Sriwijaya Palembang Indonesia

ISBN: (数字)9798331533243

ISBN: (纸本)9798331533250

Oil palm plantations in Indonesia still have many challenges, especially in terms of monitoring and mapping technology. One of the important aspects in the monitoring stage of oil palm plantations is monitoring the productivity of oil palm plants. To identify the oil palm plants, many previous studies have utilized image analysis to solve the problem. The problem is that poor image conditions can affect the architecture model to be built.[1] So in this research we do tune mapping on the image to produce a quality image. Each image data that has been improved will be feature extracted using ResNet and VGG to produce the best model. Furthermore, the classification model development process is carried out using CNN architecture as the model architecture. We also provide innovation by using object detection technology. Which uses artificial neural networks. Here we train the model using aerial video datasets of oil palm plants obtained from drones. Furthermore, to evaluate the performance of the above technique, it is proposed to use the mapping model, precision and accuracy evaluation obtained in the test phase[2]

关键词： YOLO Productivity Technological innovation Oils Multimedia systems Plantations Feature extraction Informatics Monitoring Drones

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On the Selection of Concurrency Control Policies for Configuration Management

On the Selection of Concurrency Control Policies for Configu...

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Brazilian Symposium on Software engineering, SBES

作者： João Gustavo Prudêncio Leonardo Murta Cláudia Werner COPPE System Engineering and Computer Science Federal University of Rio de Janeiro Rio de Janeiro Brazil Instituto de Computação Universidade Federal Fluminense Rio de Janeiro Brazil

Currently, the number of developers involved in a software development project is increasing because of the need to deliver systems with higher complexity and quality and to reduce time-to-market. In order to have the software development process executing in an organized way, we must provide mechanisms to control concurrent access over the project artifacts. These mechanisms are implemented by concurrency control policies in version control systems, which may allow (optimistic policy) or inhibit (pessimistic policy) parallel development. This work presents the Orion approach, which analyzes the project historical changes and selects the most appropriate concurrency control policy for each software element. In addition, it identifies critical elements, which are candidates to refactoring. This selection aims at minimizing conflict situations, and thus improving the development team productivity. A prototype was built to enable the application of the proposed approach and two experimental studies were performed as a preliminary evaluation.

关键词： Concurrency control Control systems programming Productivity Software development management computer science Time to market Prototypes Collaborative software Software engineering

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PAPR reduction in an OFDM system using recursive clipping and filtering technique

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WSEAS Transactions on Communications 2014年第1期13卷 291-297页

作者： Islam, Anamul Ahmed, N. Ahamed, Nizam Uddin Rahman, Matiur Aljunid, S.A. Dept. of Applied Physics and Electronic Engineering University of Rajshahi Bangladesh School of Computer and Communication Engineering University Malaysia Perlis Malaysia Biomedical Engineering Program Mechatronic Engineering University Malaysia Perlis Malaysia College of Computer Science and Information System Najran University Saudi Arabia

An Orthogonal Frequency Division Multiplexing (OFDM) scheme is expected as an efficient technique for next generation wireless communications. However, high Peak to Average Power Ration (PAPR) of OFDM system is the main drawback which degrades the transmitter power efficiency causes poor performance of the system. To reduce PAPR of OFDM signal, several works on clipping technique have been proposed. This paper is incorporated the improvement of the PAPR and Bit Error Rate (BER) performance using clipping method. It has been shown from the result that by employing the recursive clipping and filtering, 11.45 dB of PAPR of original OFDM signal is reduced down to 4.77 dB. Hence, BER is also increased significantly. This research is carried out through MATLAB simulation and gradually measured the effect of PAPR on BER under AWGN channel for 16QAM scheme with 256 points OFDM. Moreover, it is studied the effect of OFDM signal while passing through High Power Amplifier (HPA). Finally, the PAPR reduction technique such as recursive clipping and filtering (RCF) is implemented.

关键词： Orthogonal frequency division multiplexing

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Hotel Information system Management Audit Using COBIT 2019 - APO12

Hotel Information System Management Audit Using COBIT 2019 -...

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Innovation in Technology (INOCON), IEEE International Conference for

作者： Joy Nashar Utamajaya Suhono Harso Supangat Ford Lumban Gaol Benny Ranti BINUS Graduate Program School of Information System BINUS University Jakarta Indonesia School of Electrical Engineering and Informatic Bandung Institute of Technology Bandung Indonesia Computer Science Department BINUS Graduate Program Computer Science Bina Nusantara University Jakarta Indonesia Computer Science Department Faculty of Computer Science University of Indonesia Depok Indonesia

In general, public or private organizations or companies have used information-based technology as a support to improve business performance to be more effective and efficient in order to achieve a company’s business goals. Given the large contribution of information technology in the application of hotel applications as a supporting information system, it is a vital system that must avoid risks that can hinder and cause harm to the hotel management business processes. Therefore, it is necessary to carry out risk management using the COBIT 5 framework to manage possible risks that may occur based on the APO12 (Manage Risk) domain. From the evaluation results of the data obtained through observation and interviews as well as the calculation of the results of the questionnaire based on 6 APO12 subdomains, the results of the risk management level capability assessment in hotel applications are still at level 3 or have reached the level of established process with the target to be achieved at level 4 resulting in a gap of 1 level. Based on the results obtained, it is necessary to propose recommendations that can be used by hotels in improving the application of information technology risk management so that in the future it can achieve the expected target level so that the APO12 level of capability can increase and become more optimal.

关键词： Technological innovation Companies Risk management Information technology Interviews Information systems

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Software ecosystems governance to enable IT architecture based on software asset management

Software ecosystems governance to enable IT architecture bas...

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Inaugural IEEE-IES Digital Ecosystems and Technologies Conference, DEST

作者： Benno E. Albert Rodrigo P. dos Santos Cláudia M. L. Werner Technological Architecture Information Technology & Telecommunications Petrobras Rio de Janeiro Brazil System Engineering and Computer Science Department COPPE Federal University of Rio de Janeiro Rio de Janeiro Brazil

Information Technology (IT) supports companies' business processes and decision making through the use of technologies and tools that are provided by suppliers. Companies that are suppliers and consumers establish relationships through contracts of purchasing products and consulting, for example. These relationships, i.e., the companies involved and the information exchanged between the parties are considered elements of Software Ecosystems (SECOs). All of these elements can be considered SECO assets and need to be supported via SECO governance since their organization and evolution represent an IT Architecture. So, IT companies or their IT divisions can use the ISO/IEC 19770 standard for Software Asset Management (SAM) in order to control costs and optimize software investments. In this sense, this paper describes a SECO Governance approach for enabling an IT Architecture based on SAM.

关键词： Software Companies computer architecture Standards Ecosystems

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CUMBIA: an agent framework to detect opportunities for collaboration

CUMBIA: an agent framework to detect opportunities for colla...

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International Conference on computer Supported Cooperative Work in Design

作者： M. Moreno A. Vivacqua J. de Souza Computer Science Program Graduate School of Engineering COPPE Rio de Janeiro Brazil DCC/IM-Institute of Mathematics Federal University of Rio de Janeiro Rio de Janeiro Brazil

With the increase in adoption of remote work groups and teams working in non-collocated environments, several opportunities for interaction have been lost. Contact with colleagues and discovery of opportunities, previously easy due to physical proximity, is made harder with distance. In this paper, we describe an agent-based framework to assist users in finding opportunities for interaction that may have been overlooked.

关键词： Collaboration Collaborative work computer science Mathematics Team working IP networks computer networks Teleconferencing Subcontracting Scheduling

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