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Optimal simulation of a perfect entangler

Physical Review A 2010年第3期81卷 032328-032328页

作者： Nengkun Yu Runyao Duan Mingsheng Ying State Key Laboratory of Intelligent Technology and Systems Tsinghua National Laboratory for Information Science and Technology Department of Computer Science and Technology Tsinghua University Beijing 100084 People's Republic of China Centre for Quantum Computation and Intelligent Systems (QCIS) Faculty of Engineering and Information Technology University of Technology Sydney NSW 2007 Australia

A 2⊗2 unitary operation is called a perfect entangler if it can generate a maximally entangled state from some unentangled input. We study the following question: How many runs of a given two-qubit entangling unitary operation are required to simulate some perfect entangler with one-qubit unitary operations as free resources? We completely solve this problem by presenting an analytical formula for the optimal number of runs of the entangling operation. Our result reveals an entanglement strength of two-qubit unitary operations.

关键词： Quantum entanglement

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Detection of Detonators in Baggage Using Deep CNN Architecture: A Comparative Study of Contrast Enhancement and Feature Extraction Methods 8

Detection of Detonators in Baggage Using Deep CNN Architectu...

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8th IEEE International Conference on Image and Signal Processing and their Applications, ISPA 2024

作者： Lynda, Oulhissane Mostefa, Merah Moldovanu, Simona Moraru, Luminita LSS Faculty of Science and Technology Abdelhamid Ibn Badis University Laboratory of Signals and Systems Mostaganem Algeria Faculty of Automation Computers Electrical Engineering and Electronics Dunarea de Jos University of Galati Modelling & Simulation Laboratory MSlab Department of Computer Science and Information Technology Galati Romania Faculty of Sciences and Environment Modelling & Simulation Laboratory Dunarea de Jos University of Galati MSlab Department of Chemistry Physics & Environment Galati Romania

ISBN: (纸本)9798350309249

Visual inspection of dual-energy X-ray radiographic images of cabin baggage requires high performance, but is hindered by various challenges such as low target prevalence, variability in target visibility, possible presence of multiple targets, and security personnel fatigue and inattention. Artificial intelligence (AI) techniques, particularly deep convolutional neural networks (CNNs), have shown promise in improving the automatic detection of explosives, even with low-resolution radiographic images, especially in high baggage throughput scenarios. In this paper, we focus on the detection of detonators as components of improvised explosive devices. The proposed approach involves comparing two experiments implemented in a deep CNN architecture using TensorFlow and Keras libraries. In the first experiment, raw dual-energy radiographic images without any enhancement were used. The second experiment includes three methods for contrast enhancement and feature extraction: the Contrast Limited Adaptive Histogram Equalization (CLAHE) method, the wavelet transform-based method, and the mixed CLAHE RGB-Wavelet method. In the latter two methods, Haar, Db2, Coif2, and Sym2 mother wavelet functions at two levels (HH and HL) were employed. The analysis of results focuses on a comparative study of performance measures such as accuracy, precision, recall, and F1 score. It was found that the preprocessing methods used in experiment 2, for the two evaluated classes (detonator and no detonator), achieved higher accuracy compared to the raw radiographic images used in experiment 1 (98.08%). The highest accuracies in experiment 2, with a value of 100%, were obtained with the CLAHE method (green channel in grayscale, blue channel in grayscale, and RGB channels) and the wavelet transform method with Haar mother wavelet at two levels HL © 2024 IEEE.

关键词： Feature extraction

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Mobile English language learning: a systematic review of group size, duration, and assessment methods

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computer Assisted Language Learning 2023年第3期36卷 430-456页

作者： Monther M. Elaish Liyana Shuib Gwo-Jen Hwang Norjihan Abdul Ghani Elaheh Yadegaridehkordi Siti Zaidah Zainuddin a Faculty of Information Technology Department of Computer Science University of Benghazi Benghazi Libya b Department of Information Systems Faculty of Computer Science and Information Technology University of Malaya Kuala Lumpur Malaysia c Graduate Institute of Digital Learning and Education National Taiwan University of Science and Technology Taipei Taiwan d Information and Communications Technology Research Center Amirkabir University of Technology Tehran Iran e Faculty of Languages and Linguistics Department of English Language University of Malaya Kuala Lumpur Malaysia

Technology-mediated learning has become a valuable tool, especially in the English language classroom. Nowadays, mobile learning is considered a significant educational tool for promoting education among learners. Several recent studies have attempted to examine different aspects of mobile learning. The size of the experimental group, and the duration and suitability of the assessment methods are important aspects in designing experimental studies in the context of mobile English language learning. Yet, very few studies have paid attention to these aspects. Therefore, this study aimed to investigate the utilisation of state-of-the-art mobile technology in English language learning, especially in terms of the size of the experimental groups, and the duration and suitability of the assessment methods. Following a systematic review protocol, 151 articles published between 2010 and 2017 were selected for analysis. Furthermore, this study considered, separately, three factors addressed in the reviewed studies: language acquisition problems, types of participants, and targeted English skills. The findings showed that thegroup sizeandstudy durationsignificantly differed among the studies based on the above factors. Questionnaires and tests were found to be the most common methods ofassessmentfor each factor, whether used separately or in combination. The results of this review can assist in the formulation of experimental designs to mitigate the challenges and facilitate the effective use of mobile learning in English language learning.

关键词： Assessment and evaluation experimental design mobile English language learning quantitative and qualitative methods

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Web 2.0 embedded e-learning: A case study

Web 2.0 embedded e-learning: A case study

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International Conference on Innovation Management and Technology Research (ICIMTR)

作者： Mahsa Baradaran Rohani Khashayar Yazdani Faculty of Computer Science and Information Systems Universiti Teknologi Malaysia Johor Bahru Malaysia Faculty of Management and Human Resource Development Universiti Teknologi Malaysia Malaysia

E-learning has been practiced for over last two decades, and thanks to Internet penetration and free software it has spread all over the world. EMS is nowadays available everywhere from high schools to high educational universities. Such a major software product still lacks in covering certain areas of education world and conventional frameworks of eLearning are incapable of answering to those demands both for learners and tutors. Basically every researcher in educational context suffer from lack of internal or furthermore cross institute collaboration, which supports research in the best way and prevent from unnecessary efforts in the initial and latter steps of a research project. Web 2.0 has the potential to cover the lack of research collaboration with tools that includes collaboration, knowledge sharing and consequently collaborative learning. This paper reviews some frameworks of eLearning and introduces a new functional framework that aims to facilitate eLearning with research support embedded functionality. A case study has been conducted to analyze the current state of a university eLearning system and the framework potentials to improve that as an educational context. To evaluate the framework effectiveness a quantitative analysis has been conducted as well.

关键词： Electronic learning Collaboration Knowledge engineering Internet Collaborative work Communities information services

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Performance Analysis of Protocol Stack for Inter-Processor Ethernet Communication in Automotive Industry

Performance Analysis of Protocol Stack for Inter-Processor E...

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Zooming Innovation in Consumer Electronics International Conference (ZINC)

作者： Davor Tomljenovic Ratko Grbić Željko Lukač Ilija Basicevic RT -RK Institute for Computer Based Systems Osijek Croatia Faculty of Electrical Engineering Computer Science and Information Technology Osijek Osijek Croatia RT -RK Institute for Computer Based Systems Novi Sad Serbia

In modern cars, Electronic Control Units (ECUs) can have more than one CPU which can exchange data over built-in communication network. Since majority of these ECUs can be categorized as real-time system, special attention should be given to the communication performance between processors. In this paper, analysis of TCP/IP protocol stack for 100 Base-TX Ethernet used for Inter-Processor communication for a specific system on a chip is given. The analysis is performed regarding throughput, goodput and latency from application layer using a test application. On the transport layer UDP was used. The obtained results revealed the impact of the Linux scheduler on the performance of data sending. Apart from that, an optimal packet size was determined by taking into account obtained latency and throughput.

关键词： Throughput Protocols IP networks Time measurement Current measurement Message systems Linux

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Environment for automatic testing and dynamic analysis of electronic program guide TV application

Environment for automatic testing and dynamic analysis of el...

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Zooming Innovation in Consumer Electronics International Conference (ZINC)

作者： Matko Turalija Ratko Grbić Marko Kovačević Ilija Bašičević RT-RK Institute for Computer Based Systems Osijek Croatia Faculty of Electrical Engineering Computer Science and Information Technology Osijek Osijek Croatia RT-RK Institute for Computer Based Systems Novi Sad Serbia

Testing in the industry is a very critical component of every project. It is necessary to confirm and provide a guarantee that the requirements for the system are fulfilled. Testing embedded systems is a challenging and exhaustive process. In order to achieve a better quality of the system and to reduce final costs, it is important to start testing as soon as possible. In this paper, an environment for automatic testing and dynamic analysis of electronic program guide TV application is presented. The previously mentioned environment consists of dynamic analysis (memory consumption, heap and stack profiling etc.) and unit testing part. The main feature of the presented environment is automation of the testing process, which allows fast application testing in every phase of development.

关键词： TV Tools Automatic testing Performance analysis Embedded systems

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Integration of CAN Bus Drivers and UDS on Aurix Platform

Integration of CAN Bus Drivers and UDS on Aurix Platform

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Zooming Innovation in Consumer Electronics International Conference (ZINC)

作者： Stjepan Dekanic Ratko Grbic Tomislav Maruna Igor Kolak RT-RK Institute for Computer Based Systems Osijek Croatia Faculty of Electrical Engineering Computer Science and Information Technology Osijek Osijek Croatia RT-RK Institute for Computer Based Systems Novi Sad Serbia

ISBN: (纸本)9781538649282

CAN is communication protocol which is used in automotive industry because of its security and reliability. UDS is a diagnostic communication protocol which enables ECU diagnostics over CAN bus. In this paper, UDS program solution for AURIX platform is proposed. The CAN low level driver is configured for CAN Bus connections upon which UDS program solution is implemented. The implementation of the algorithm is written in ERIKA Enterprise operating system and is run on Infineon Triboard TC297A v1.0 experimental board. The evaluation of the proposed UDS program solution has been done by sending requests by PCAN-USB Pro device and by interpreting the received response.

关键词： Standards Protocols Vehicles Industries Servers Payloads Software

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SVTest: general purpose software for testing weakly random sources with exemplary application to seismic data analysis enabling quantum amplification

arXiv

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arXiv 2025年

作者： Stankiewicz, Maciej Salazar, Roberto Czechlewski, Mikolaj Jensen, Alejandra Muñoz Morales-Yáñez, Catalina Sakarya, Omer Carrasco, Julio Viveros Horodecki, Karol Institute of Informatics Faculty of Mathematics Physics and Informatics University of Gdańsk Wita Stwosza 57 Gdańsk80-308 Poland University of Malta MsidaMSD 2080 Malta Faculty of Physics Astronomy and Applied Computer Science Jagiellonian University Kraków30-348 Poland Institute of Informatics National Quantum Information Centre Faculty of Mathematics Physics and Informatics University of Gdańsk Wita Stwosza 57 Gdańsk80-308 Poland EMGG TerraData Limitada Concepción Chile Department of Geophysics Universidad de Concepción Concepción Chile Department of Civil Engineering Universidad Católica de la Santísima Concepción Concepción Chile

Generating private randomness is essential for numerous applications ranging from security proofs to online banking. Consequently, the capacity of quantum devices to amplify the privacy of a weak source of randomness, in cases unattainable by classical methods, constitutes a practical advantage. One of the theoretical models of such weak sources are the so-called Santha-Vazirani (SV) sources;however, finding natural sources satisfying the SV model is a paramount challenge. In this article, we take three significant steps on the way to simplify this hard task. We begin with an in-depth analysis of the mathematical background for estimating the quality of a weak randomness source by providing a set of axioms that systematize the possible approaches to such estimation. We then develop software (SVTest) to estimate the parameter characterizing the source’s randomness. The software is general-purpose, i.e., it can test the randomness of any target sequence of bits. Later, we apply the software to test seismic events (earthquakes and local noise) as potential sources of randomness. Our results demonstrate that seismic phenomena are possible sources of randomness, depending on the choice of discretization. Therefore, our work provides strong evidence of the potential of geophysical phenomena as a source of cryptographic resources, building an unprecedented bridge between both fields. Copyright © 2025, The Authors. All rights reserved.

关键词： Seismic response

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Software Evolution of I4.0 Digital Twins with Semantic Patching

Software Evolution of I4.0 Digital Twins with Semantic Patch...

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IEEE International Symposium on Industrial Electronics (ISIE)

作者： Nico Braunisch Sebastian Heppner Igor Garmaev Marko Ristin Torben Miny Tobias Kleinert Hans Wernher Van De Venn Martin Wollschlaeger Institute of Applied Computer Science TU Dresden Dresden Germany Chair of Information and Automation Systems RWTH Aachen University Aachen Germany Institute of Mechatronic Systems Zurich University of Applied Sciences (ZHAW) Zurich Switzerland

ISBN: (数字)9798350394085

ISBN: (纸本)9798350394092

We examine semantic patching, an important technique of software evolution, that allows us to automate to a large extent the adaption of external open-source libraries for Digital Twins with a high degree of correctness. While this technique is widely known in specialized software engineering circles, we aim to popularize it among the automation community. We evaluate and compare its advantages against other adaptation methods in three practical use cases where the widely-used aas-core Software Development Kit is adapted for different lighthouse projects in Industrie 4.0, written in Python, C#, and Java, respectively. The results highlight the effectiveness of semantic patching in automating the process, minimizing errors and ensuring a seamless transition.

关键词： Industries Industrial electronics Java Semantics Software Libraries Digital twins

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An attribute graph grammar enabling narrower drawings of trees

An attribute graph grammar enabling narrower drawings of tre...

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IEEE/International Association for computer and information science International Conference on computer and information science

作者： Kirishima, Tadaaki Goto, Takaaki Yaku, Takeo Tsuchida, Kensei Open Information Systems Toyo University Kawagoe-shi Saitama Japan Cooperative Research Center University of Electro-Communications Chofu-shi Tokyo Japan Department of Computer Science and System Analysis College of Humanities and Sciences Nihon University Setagaya-ku Tokyo Japan Faculty of Information Sciences and Arts Toyo University Kawagoe-shi Saitama Japan

ISBN: (纸本)9780769541471

Visualizing information has been one of the main subjects of study in the computer field. Representing objects with diagrams is one approach to visualizing information and its effectiveness has widely been recognized. Thus far, many graph-drawing algorithms have been proposed. Several authors have studied the problem of producing tidy drawings of binary trees - drawings that are aesthetically pleasing and of minimum width. A number of aesthetics has been proposed. We extend this problem to that of general trees in this paper and give an attribute graph grammar that corresponds to general trees. Finally, we propose an application of this grammar. © 2010 IEEE.

关键词： Binary trees

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