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International Conference on Computational Cybernetics (ICCC)

作者： Stefan Dumbrava Faculty of Automatic Control and Computer Engineering Gheorghe Asachi Technical University of Iasi Iasi Romania

Enterprise control applications are becoming more and more complex, exploiting distributed object technology in multi-tier architectures. For educational purposes, the development of a manufacturing control laboratory that may emphasize the new control techniques and the overall integration of the system activities is a complex and challenging task. In the paper, an enterprise application solution that integrates the ERP concept in three- tier architecture with a flexible manufacturing system is presented. It contains modularized, distributed subsystems in configurable and maintainable software. Starting from the customer order, to planned order dispatch, the ERP main components and the information flow within the system is presented. The software architecture contains the ERP components that are implemented using enterprise Java beans, deployed in a J2EE application server. It enables transactions with the business environment, shop-floor system and the database. The application is conceptually designed and analyzed using a visual model developed in Unified Modeling Language.

关键词： Laboratories Enterprise resource planning Application software control systems Software maintenance computer architecture Flexible manufacturing systems Software architecture Java Transaction databases

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Symmetrical T-network with fractional order elements

Symmetrical T-network with fractional order elements

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International Conference on Environment and Electrical engineering (EEEIC)

作者： Maciej Włodarczyk Jarosław Szczepaniak Faculty of Electrical Engineering Automatic Control and Computer Science Kielce University of Technology Kielce Poland

The paper presents a symmetrical T-network utilizing fractional order elements. Fractional calculus was used for its modeling. A comparative analysis of a classic T-network and fractional order T-network step response... 详细信息

关键词： Transfer functions Fractional calculus Integrated circuit modeling Computational modeling RLC circuits Laplace equations

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Learning to Count with Cell Assemblies: A Neuro-Symbolic Approach

Learning to Count with Cell Assemblies: A Neuro-Symbolic App...

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International Conference on System Theory, control, and Computing (ICSTCC)

作者： Florin Leon Faculty of Automatic Control and Computer Engineering "Gheorghe Asachi" Technical University of Iași Romania

ISBN: (数字)9798350364293

ISBN: (纸本)9798350364309

Recent advancements in artificial intelligence have led to significant results in various domains, including image classification, natural language processing, and mastering complex games. However, current deep neural networks seem to process information differently from humans. Neuro-symbolic methods may offer a promising solution to address this concern. This paper proposes a preliminary cognitive architecture focused on neural cell assemblies, which can combine the adaptability of neural approaches with the explicit reasoning capabilities of symbolic systems. It presents a case study on learning to count, and highlights mechanisms for learning, generalization, and adaptation based on predictive errors.

关键词： Training Neuroscience Microprocessors Transfer learning Symbols Psychology computer architecture Biology Planning Assembly

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Predicting the Time from Diagnosis to Treatment in Breast Cancer

Predicting the Time from Diagnosis to Treatment in Breast Ca...

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E-Health and Bioengineering Conference (EHB)

作者： Sergiu Ceică Ştefan-Daniel Achirei Dept. of Computer Engineering Faculty of Automatic Control and Computer Engineering “Gheorghe Asachi” Technical University of Iasi Iasi Romania

ISBN: (数字)9798331532147

ISBN: (纸本)9798331532154

Recent advancements in machine learning (ML) have significantly impacted the medical field, particularly in diagnosing and treating breast cancer. This study models the time from diagnosis to treatment for breast cancer patients, focusing on delay factors and ML-based solutions. The goal is to develop precise ML models that predict treatment delays, thereby improving the quality and efficiency of medical services. We investigated socio-economic disparities affecting treatment access and developed models to predict these delays. The predictive models used include K-Nearest Neighbors, Decision Trees, Linear Regression, and Boosting Algorithms such as AdaBoost and Gradient Boosting Regressor. By accurately predicting the interval from diagnosis to the first treatment, our work aims to promote equity in healthcare, ensuring timely treatment for all patients. Our findings highlight the potential of ML in optimizing treatment timelines and resource allocation, contributing to improved patient outcomes and advancing the medical system.

关键词： Medical services Predictive models Boosting Prediction algorithms Breast cancer Delays Resource management Socioeconomics Medical diagnostic imaging Regression tree analysis

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Mesh simplification based on Willmore energy weighted quadric error metric

Mesh simplification based on Willmore energy weighted quadri...

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International Conference on System Theory, control, and Computing (ICSTCC)

作者： Bogdan Apostol Vasile Manta Faculty of Automatic Control and Computer Engineering Gheorghe Asachi Technical University of Iasi Iasi Romania

Rendering, storing and transmission of high resolution models composed of large number of triangles primitives represents one of problems that scientific visualization and virtual reality faces. When these models exceed the capacity of the graphics hardware real-time rendering the solution is to simplify the mesh models by eliminating primitives from the original models while trying to keep topological information and main surface characteristics. This paper presents a new approach to the quadric error metric mesh simplification that uses the local surface features to quantify the cost of an edge collapse. We achieve this by using a weight for each quadric error processed that takes into account local Willmore energy. We defined the probability of each vertex to be decimated or not in the simplification process to be the entropy value of the vertex neighborhood Willmore energy values. We demonstrate that our method can obtain better geometric results than QSlim simplifications by preserving local features in regions of high importance for the viewer.

关键词： Measurement Surface treatment Entropy Solid modeling Visualization Energy resolution Rendering (computer graphics)

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Design and Implementation of a CAN-USB Interface for Networked Embedded Systems

Design and Implementation of a CAN-USB Interface for Network...

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International Conference on System Theory, control, and Computing (ICSTCC)

作者： Constantin Abaceoae Mihai Postolache Faculty of Automatic Control and Computer Engineering “Gheorghe Asachi” Technical University of Iasi Iasi Romania

controller Area Network (CAN) is the most used protocol for intra-vehicle communication between Electronic control Units (ECUs) for decades. Moreover, there are several implementations of industrial networks built on top of CAN, (i.e. CANopen and DeviceNet) that expanded even more its area of application to almost any industrial automation field. The growing needs for data in today's modern and safe applications led to CAN Flexible Data Rate (CAN FD) in order to increase the network throughput and pushed the data field of the CAN frames beyond the 1Mbps limit of the high speed CAN chips. A low cost CAN-USB interface application for dual CAN bus network monitoring, diagnose and maintenance is proposed which can be easily ported on any member of the ARM Cortex-M microcontroller family with built-in CAN or CAN-FD communication.

关键词： Universal Serial Bus Microcontrollers Task analysis Message systems Libraries Microprogramming Microsoft Windows

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Generalized media access control algorithms for embedded network systems

Generalized media access control algorithms for embedded net...

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International Conference on System Theory, control, and Computing (ICSTCC)

作者： Mihai Postolache Faculty of Automatic Control and Computer Engineering “Gheorghe Asachi” Technical University of Iasi Iasi Romania

Embedded network systems use serial communication protocols and simplified media access control schemes in order to exchange information among several interconnected nodes. Within this paper a generalization of the classical media access control (MAC) protocols used in small embedded serial networks of microcontrollers is investigated and an implementation platform for testing the proposed MAC schemes is described. Thus, the classic master-slave and token-bus protocols turn out to be just two particular cases of the proposed generalized media access control (GMAC) algorithms: a centralized and a distributed one, respectively. By applying these generalized algorithms in practice, significant increase in data throughput is obtained, as it resulted from the simulation tests and then by practical implementation on a typical embedded network of microcontrollers.

关键词： Media Access Protocol Media Master-slave Monitoring Embedded systems Communication channels

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A clustering algorithm for negotiating security in wireless mesh networks

A clustering algorithm for negotiating security in wireless ...

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International Conference on System Theory, control, and Computing (ICSTCC)

作者： N. Botezatu V. Manta G. Vieriu Faculty of Automatic Control and Computer Engineering Gh. Asachi Technical University of Iasi Romania

Wireless networks rely greatly on security for authentication and confidentiality, due to the use of an open communication medium. The tendency to incorporate wireless capabilities in battery powered hand-held devices makes it difficult to enforce security because of computational resources and battery capacity limitations. One approach to this problem consists in adaptable security mechanisms: different security algorithms may be enforced at any given time, to assure a proper level of protection, while respecting constraints on power and resource consumption. This paper presents such a mechanism (CLASS), which uses a clustering scheme to setup homogenous security areas in the network. The scheme is based on the available energy at every node and on the individual security requirements. By proper assignment of the nodes and by proper selection of security, we show that our method significantly reduces the average energy consumption compared to a heterogeneous network.

关键词： Peer to peer computing Energy consumption Throughput Clustering algorithms Wireless mesh networks Encryption

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A reliable-Adaptive scheduler for computational grids with failure recovery and rescheduling mechanisms

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International Journal of Grid and Utility Computing 2011年第1期2卷 59-75页

作者： Sarhan, Amany Saleh, Ahmed I. Hamed, Amr M. Computer Engineering and Automatic Control Department Faculty of Engineering Tanta University Tanta Egypt Computer Engineering and Systems Department Faculty of Engineering Mansoura University P.O. Box 72 Mansoura Egypt

Computational grids (CGs) have become an attractive research area as they suggest a suitable environment for developing large scale parallel applications. CGs integrate a large amount of distributed heterogeneous resources into a single powerful platform. However, to make good use of CGs, grid resources should be scheduled efficiently. Various scheduling strategies have been introduced, including static and dynamic behaviours. The former maps tasks to resources at submission time, while the latter operates at schedule time. While static scheduling is unsuitable for the dynamic grid environment, scheduling in CGs is still more complex than the proposed dynamic ones. This paper introduces a decentralised adaptive grid scheduler (AGS) based on a novel rescheduling mechanism. AGS has several salient properties as it is;hybrid, adaptive, decentralised, and efficient. AGS is also robust as it has the ability to: 1 detect resource failures 2 continue its functionality in spite of the failure existence 3 recover back as soon as possible. Moreover, it integrates both static and dynamic scheduling behaviours. An initial static scheduling map is proposed for an input directed acyclic graph (DAG). However, DAG tasks may be rescheduled if the hosting resources' performance changes in a way that affects the tasks' response time. AGS tries to overcome drawbacks of traditional schedulers by utilising the mobile agent unique features to enhance the resource discovery and monitoring processes. Experimental results have shown that AGS outperforms traditional grid schedulers as it introduces a better scheduling efficiency. © 2011 Inderscience Enterprises Ltd.

关键词： Mobile agents

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RiscDaqExt – Digital Acquisition and control RISC-V Extension

RiscDaqExt – Digital Acquisition and Control RISC-V Extensi...

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International Conference on System Theory, control, and Computing (ICSTCC)

作者： Cosmin-Andrei Popovici Andrei Stan Vasile-Ion Manta Department of Computer Engineering Faculty of Automatic Control and Computer Engineering Technical University "Gheorghe Asachi" Iași România

ISBN: (数字)9798350364293

ISBN: (纸本)9798350364309

This paper presents a RISC-V extension, called RiscDaqExt designed for Digital Acquisition and control over 32 individually managed digital channels. Each channel can be configured as input or output, inputs can be negated or filtered before being recorded using specific masks and output channels source can be chosen between values given with a mask, result of a multi-signal operation on specified inputs or a PWM signal generated by the SigWavy extension. The extension is also capable of measuring PWMs frequencies and duty cycles. The extension is controlled using a dedicated ISA extension containing instructions for setting/getting configuration/values and for controlling the storing records of 32 signals values with 32-bit timestamps to an attached DDR3 memory or directly to hosting PC’s RAM via Ethernet. The proposed solution, embedded into the RISC-V CPU named RiscDaq manages to initiate an Ethernet transmission of digital records 9.78x times faster than a MicroBlaze microcontroller, although our SoC operates with a 4x lower frequency, and outputs the result of logical operation performed over maximum 31 digital channels, with a constant 20 ns propagation delay, 49.2x times faster than a Cortex-M7 clocked at a 6x times higher frequency.

关键词： Time-frequency analysis Digital systems Process control Random access memory Ethernet Pulse width modulation Frequency measurement Time factors Logic Propagation delay

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