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IEEE Annual Computing and Communication Workshop and Conference (CCWC)

作者： Jordan Mazur Christopher Rouff Ali Tekeoglu Computer Science Department Whiting School of Engineering Johns Hopkins University Applied Physics Laboratory & JHU Whiting School of Engineering Johns Hopkins University Leidos Innovations Center & Johns Hopkins University Whiting School of Engineering

Phishing attacks are one of the most common initial access vectors malicious actors utilize to get into personal and corporate systems. The weakest component of a system in terms of security is the human user, which is the targeted. We propose a mechanism, Autonomic Computing based Phishing Protection System (ACPPS), that is able to prevent the malicious activity from succeeding regardless of the user actions. Utilizing system monitoring, self-protection, and defined policies, ACPPS will interrupt malicious processes and system calls from completing. It is able to analyze anomalous behavior and make decisions that protect both the individual system and the network from attackers. Initially, the proof of concept is paired down to handle basic phishing attempts against Windows computers from common botnets. The preliminary results of ACPSS implementation indicate that the autonomic system can be expanded to encompass increasingly sophisticated forms of attacks, across less prevalent system types compared to Windows that was utilized in this study.

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On-chip beam rotators,adiabatic mode converters,and waveplates through low-loss waveguides with variable cross-sections

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Light(science & Applications) 2022年第8期11卷 1876-1890页

作者： Bangshan Sun Fyodor Morozko Patrick S.Salter Simon Moser Zhikai Pong Raj B.Patel Ian A.Walmsley Mohan Wang Adir Hazan Nicolas Barré Alexander Jesacher Julian Fells Chao He Aviad Katiyi Zhen-Nan Tian Alina Karabchevsky Martin J.Booth Department of Engineering Science University of OxfordOxfordOX13PJUK School of Electrical and Computer Engineering Ben-Gurion University of the NegevP.O.B.653Beer-Sheva8410501Israel Institute of Biomedical Physics Medical University of InnsbruckMüllerstraße 446020InnsbruckAustria Ultrafast Quantum Optics group Department of PhysicsImperial College LondonLondonUK Department of Physics University of OxfordOxfordUK Erlangen Graduate School in Advanced Optical Technologies(SAOT) Friedrich-Alexander-University Erlangen-NürnbergPaul-Gordan-Straße 691052ErlangenGermany State Key Laboratory of Integrated Optoelectronics College of Electronic Science and EngineeringJilin UniversityChangchun130012China

Photonics integrated circuitry would benefit considerably from the ability to arbitrarily control waveguide cross-sections with high precision and low loss,in order to provide more degrees of freedom in manipulating propagating ***,we report a new method for femtosecond laser writing of optical-fiber-compatible glass waveguides,namely spherical phase-induced multicore waveguide(SPIM-WG),which addresses this challenging task with three-dimensional on-chip light *** in the heating regime with high scanning speed,precise deformation of cross-sections is still achievable along the waveguide,with shapes and sizes finely controllable of high resolution in both horizontal and vertical transversal *** observed that these waveguides have high refractive index contrast of 0.017,low propagation loss of 0.14 dB/cm,and very low coupling loss of 0.19 dB coupled from a single-mode ***-WG devices were easily fabricated that were able to perform on-chip beam rotation through varying angles,or manipulate the polarization state of propagating light for target *** also demonstrated SPIM-WG mode converters that provide arbitrary adiabatic mode conversion with high efficiency between symmetric and asymmetric nonuniform modes;examples include circular,elliptical modes,and asymmetric modes from ppKTP(periodically poled potassium titanyl phosphate)waveguides which are generally applied in frequency conversion and quantum light *** inside optical glass,these waveguides and devices have the capability to operate across ultra-broad bands from visible to infrared *** compatibility with optical fiber also paves the way toward packaged photonic integrated circuitry,which usually needs input and output fiber connections.

关键词： waveguide waveguides polarization

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A Continual Learning Method for Reducing Class Interference Based on Replay 42

A Continual Learning Method for Reducing Class Interference ...

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42nd Chinese Control Conference, CCC 2023

作者： Xu, Zhibo Wang, Tian Wang, Jian Li, Ce Fu, Yao Snoussi, Hichem School of Automation Science and Electrical Engineering Beihang University Beijing100191 China Institute of Artificial Intelligence Sklsde Beihang University Beijing100191 China Zhongguancun Laboratory Beijing100191 China School of Computer Science Wuhan University Wuhan430072 China China University of Mining and Technology Department of Computer Science and Technology Beijing100083 China Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun130033 China Laboratory of Computer Science and Digital Society University of Technology of Troyes Troyes France

ISBN: (纸本)9789887581543

Although deep neural networks perform well on many individual tasks, they suffer from catastrophic forgetting when learning new tasks continually. Recently, various continual learning methods have been proposed, and some approaches based on replaying memory data achieve promising performance. Maximally Interfered Retrieval is a strong replay-based baseline, however, exists class interference due to class imbalance and lacks the ability to generalize to the real class-incremental scenario. In this paper, aiming at these problems, we design Class cumulative Classifier to replace the shared output layer of the original network, which makes it closer to practical applications, and Class balanced Buffer to address the class imbalance of stored samples. In addition, we propose Retrospect strategy to further improve the accuracy. Experimental results on benchmark datasets show that our method outperforms several strong baselines and is more suitable for complex datasets with more classes. © 2023 Technical Committee on Control Theory, Chinese Association of Automation.

关键词： Image classification

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Autonomic IoT Pet Health Monitoring System

Autonomic IoT Pet Health Monitoring System

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International Symposium on Networks, computers and Communications (ISNCC)

作者： Michael Shultz Christopher Rouff Ali Tekeoglu Computer Science Department Johns Hopkins University Whiting School of Engineering Johns Hopkins University Applied Physics Laboratory & JHU Whiting School of Engineering Leidos Innovations Center & Johns Hopkins University Whiting School of Engineering

ISBN: (数字)9798350364910

ISBN: (纸本)9798350364927

Internet of Things (IoT) devices have seen an uptick in popularity in recent years for individual health tracking, allowing for a person to monitor their health in real time. Simultaneously, pet care devices have also become popular. These devices have become increasingly connected and automated to allow for easier care of pets. This includes allowing an owner to not have to worry about forgetting to feed or overfeeding their pet, or to monitor a pet's health condition. In this paper, we propose an approach for using the principles of self-health monitoring overlaid on existing IoT connected pet care devices to provide an autonomic system that can adjust itself to the needs of a pet as it detects changes in the pet's health.

关键词： computers Autonomic systems Data aggregation Real-time systems Internet of Things Feeds Relays Monitoring

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An on-chip platform for multi-degree-of-freedom control of two-dimensional quantum and nonlinear materials

An on-chip platform for multi-degree-of-freedom control of t...

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2024 Conference on Lasers and Electro-Optics, CLEO 2024

作者： Tang, Haoning Wang, Yiting Ni, Xueqi Watanabe, Kenji Taniguchi, Takashi Fan, Shanhui Mazur, Eric Yacoby, Amir Cao, Yuan School of Engineering and Applied Sciences Harvard University CambridgeMA02138 United States Department of Electrical Engineering and Computer Science University of California at Berkeley BerkeleyCA94720 United States National Institute for Materials Science Namiki 1-1 Ibaraki Tsukuba305-0044 Japan Department of Applied Physics Ginzton Laboratory Stanford University StanfordCA94305 United States

ISBN: (纸本)9781957171395

We introduce the first on-chip, microelectromechanical system for the in situ tuning of twisted 2D materials, enabling tunable interfacial properties, synthetic topological singularities, and adjustable-polarization light sources for advanced quantum material manipulation in 2D-3D devices. © Optica Publishing Group 2024 © 2024 The Author(s)

关键词： Degrees of freedom (mechanics)

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Adverse Drug Reaction Prediction and Feature Importance Mining Based on SIDER Dataset 3

Adverse Drug Reaction Prediction and Feature Importance Mini...

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3rd International Conference on Machine Learning and computer Application, ICMLCA 2022

作者： Chen, Tianqi Liu, Chun Huang, Mingzhe Cheng, Xiang Zhou, Lixian Department of Electrical and Computer Engineering University of Western Ontario LondonON Canada Department of Software Engineering GuangZhou Xinhua University GuangZhou China Department of Computer Science Michigan State University Michigan United States Department of Physics and Astronomy University College London London United Kingdom ChangJun High School International Department Changsha China

ISBN: (纸本)9781510664814

Adverse Drug Reaction (ADR) refer to harmful and irrelevant reactions that occur when normal dosage drugs are used to prevent, diagnose, treat diseases or regulate physiological functions. This definition excludes reactions caused by intentional or accidental overdose and inappropriate medication. In this paper, several models were measured and compared. The results demonstrated that base learners such as LR, SVM, RF, Adaboost, XGBoost may perform exceptionally well in some specific situations. On the other hand, if the precision of the outputs is emphasized, applying Stacking or even Multi-layer Stacking will be the most efficient tool. © 2023 SPIE.

关键词： Adaptive boosting

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Histopathology of Malignant Tissues Using High-Resolution Microscopy @ 630nm

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Lasers in engineering 2025年第4-6期59卷 295-308页

作者： Amjad, M. Ullah, H. Ullah, S. Batool, Z. Nazir, A. Gilanie, G. Habib, S. Abdullah-Al-Wadud, M. Dad, M. Umar Biophotonics Imaging Techniques Laboratory Department of Physics The Islamia University of Bahawalpur Baghdad-ul Jadeed Campus Bahawalpur Pakistan Department of Histopathology Nishtar Medical University Multan Pakistan Department of Artificial Intelligence Faculty of Computing The Islamia University of Bahawalpur Bahawalpur Pakistan Institute of Chemistry The Islamia University of Bahawalpur 63100 Pakistan Department of Software Engineering College of Computer and Information Sciences King Saud University Riyadh11543 Saudi Arabia School of Physics and Electronic Science East China Normal University Shanghai200062 China

Tissue samples (10 samples of basal cell carcinoma (BCC) of nose, 10 specimens of adenocarcinoma prostate, 12 of ovary, 12 of renal cell carcinoma (RCC) of kidney, and 14 samples of breast cancer) were received in paraffin-embedded blocks, stained with H&E and investigated using a high-resolution microscope. The BCC of the skin showed tumor nests, necrosis, cytological atypia, and abnormal cell to nuclei ratio, and the nodular type and Breslow thickness is 3.0 cm. For prostate cancer, Gleason’s grade is 4+4 and the obtained score is 8/10. Its grade group is 4. In ovary cancer, the squamous discrepancy is very usual. Some alternates are present like mucin rich and secretory, small cells with scanty cytoplasm settled in fragments, violent tumors, and cystic and solid areas in addition to hemorrhage and necrosis. In RCC, tumor cells have sharply outlined cell boundaries and the cytoplasm ranges from optically clear to deeply granular. Tubular, papillary, and cystic formation and abundant glycogen, abnormal mitotic activity with debris all over the tissue sample is seen. The breast tumor showed a grey-white solid area, with 10 lymph nodes identified in the axilla. The specimen is of the type right mastectomy with axillary clearance and the tumor types are invasive ductal cell carcinoma having grade 2 and lobular carcinoma. Resected margins are free of tumor. Axillary lymph node 3/10 shows metastatic carcinoma. ©2025 Old City Publishing, Inc.

关键词： Tumors

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Magnetically tuned continuous transition from weak to strong coupling in terahertz magnon polaritons

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Physical Review Research 2023年第1期5卷 L012039-L012039页

作者： Andrey Baydin Kenji Hayashida Takuma Makihara Fuyang Tay Xiaoxuan Ma Wei Ren Guohong Ma G. Timothy Noe, II Ikufumi Katayama Jun Takeda Hiroyuki Nojiri Shixun Cao Motoaki Bamba Junichiro Kono Department of Electrical and Computer Engineering Rice University Houston Texas 77005 USA Smalley-Curl Institute Rice University Houston Texas 77005 USA Division of Applied Physics Graduate School of Engineering Hokkaido University Sapporo Hokkaido 060-8628 Japan Department of Physics and Astronomy Rice University Houston Texas 77005 USA Applied Physics Graduate Program Smalley-Curl Institute Rice University Houston Texas 77005 USA Department of Physics International Center of Quantum and Molecular Structures and Materials Genome Institute Shanghai University 200444 Shanghai China Department of Physics Graduate School of Engineering Science Yokohama National University Yokohama 240-8501 Japan Institute for Materials Research Tohoku University Sendai 980-8577 Japan The Hakubi Center for Advanced Research Kyoto University Kyoto 606-8502 Japan Department of Physics I Kyoto University Kyoto 606-8502 Japan PRESTO Japan Science and Technology Agency Kawaguchi 332-0012 Japan Department of Materials Science and NanoEngineering Rice University Houston Texas 77005 USA

Depending on the relative rates of coupling and dissipation, a light-matter coupled system is either in the weak- or strong-coupling regime. Here, we present a unique system where the coupling rate continuously increases with an externally applied magnetic field while the dissipation rate remains constant, allowing us to monitor a weak-to-strong coupling transition as a function of magnetic field. We observed a Rabi splitting of a terahertz magnon mode in yttrium orthoferrite above a threshold magnetic field of ∼14 T. Based on a microscopic theoretical model, we show that with increasing magnetic field the magnons transition into magnon polaritons through an exceptional point, which will open up new opportunities for in situ control of non-Hermitian systems.

关键词： Antiferromagnetism High magnetic fields Magneto-optics Magnons Polaritons Non-Hermitean systems Terahertz time-domain spectroscopy Transfer matrix method

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A Refinement Framework of CS-MRI Using the Fast Low-Rank Approximation 10

A Refinement Framework of CS-MRI Using the Fast Low-Rank App...

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10th International Conference on computer and Communications, ICCC 2024

作者： Xu, Shuqi Xiang, Youjun Zeng, Xia Zhang, Wei Zhuang, Chunsheng Chen, Zhen School of Electronic and Information Engineering Macau University of Science and Technology Macao School of Electronic and Information Engineering South China University of Technology Guangzhou 510641 China Guangzhou University Sontan College Department of electrical and computer engineering Guangzhou China Henan Academy of Science Applied Physics Institute Co. Ltd Henan China Institute of Microelectronics University of Macau Macao

Compressed sensing magnetic resonance imaging (CS-MRI) enables fast acquisition, which is highly desirable for numerous clinical applications. However, the quality of the MR images will depend upon the rate of undersampling. Especially, under the extremely undersampling case, if the image obtained by a conventional CS-MRI method is not satisfied, is any remedial measure could be made? In this paper, a refinement framework of CS-MRI will be proposed as the remedial measure. In the refinement framework, the MR image obtained by using the conventional CS-MRI method, will be taken as the training image. A low-rank model associated with a self-learning scheme will be established for the refinement framework. To preserve more detail features and to reduce the complexity, a partial singular value thresholding (SVT) method and an adaptive selection of the regularization parameter will be employed to establish the solver. Numerical simulations show that the proposed framework can be the remedial measure to improve the quality and robustness of MR image reconstruction in the low sampling case. © 2024 IEEE.

关键词： Compressed sensing MRI Nuclear norm approximation Refinement framework Self-learning dictionary

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Enhancement of superconductivity in the Fibonacci chain

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Physical Review B 2024年第13期109卷 134504-134504页

作者： Meng Sun Tilen Čadež Igor Yurkevich Alexei Andreanov School of Physics and Optoelectronic Engineering Beijing University of Technology Beijing 100124 China Center for Theoretical Physics of Complex Systems Institute for Basic Science Daejeon 34126 Republic of Korea School of Computer Science and Digital Technologies Aston University Birmingham B4 7ET United Kingdom Basic Science Program Korea University of Science and Technology Daejeon 34113 Republic of Korea

We study the interplay between quasiperiodic disorder and superconductivity in a one-dimensional tight-binding model with the quasiperiodic modulation of on-site energies that follow the Fibonacci rule, and all the eigenstates are multifractal. As a signature of multifractality, we observe the power-law dependence of the correlation between different single-particle eigenstates as a function of their energy difference. We numerically compute the mean-field superconducting transition temperature for every realization of a Fibonacci chain of a given size and find the distribution of critical temperatures, analyze their statistics, and estimate the mean value and variance of critical temperatures for various regimes of the attractive coupling strength and quasiperiodic disorder. We find an enhancement of the critical temperature compared to the analytical results that are based on strong assumptions of the absence of correlations and self-averaging of multiple characteristics of the system, which are not justified for the Fibonacci chain. For the very weak coupling regime, we observe a crossover where the self-averaging of the critical temperature breaks down completely and strong sample-to-sample fluctuations emerge.

关键词： Superconductivity Fractals Mean field theory Methods in superconductivity Tight-binding model

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