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arXiv 2025年

作者： Li, Yuru Tan, Jiawei Xue, Qingying School of Mathematical Sciences Beijing Normal University Laboratory of Mathematics and Complex Systems Ministry of Education Beijing100875 China Guangxi Colleges Universities Key Laboratory of Data Analysis and Computation Guilin541004 China

In this paper, we systematically study the Fefferman-Stein inequality and Coifman-Fefferman inequality for the general commutators of singular integral operators that satisfy Hörmander conditions of Young type. Specifically, we first establish the pointwise sparse domination for these operators. Then, relying on the dyadic analysis, the Fefferman-Stein inequality with respect to arbitrary weights and the quantitative weighted Coifman-Fefferman inequality are demonstrated. We decouple the relationship between the number of commutators and the index Ε, which essentially improved the results of Pérez and Rivera-Ríos (Israel J. Math., 2017). As applications, it is shown that all the aforementioned results can be applied to a wide range of operators, such as singular integral operators satisfying the Lr-Hörmander operators, ω-Calderón-Zygmund operators with ω satisfying a Dini condition, Calderón commutators, homogeneous singular integral operators and Fourier *** Codes 42B20, 42B25 © 2025, CC BY.

关键词： Choquet integral

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BOUNDEDNESS OF A CLASS OF MULTILINEAR OPERATORS AND THEIR ITERATED COMMUTATORS ON MORREY-BANACH FUNCTION SPACES

arXiv

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arXiv 2025年

作者： Tan, Jiawei Wang, Jiahui Xue, Qingying Guangxi Colleges Universities Key Laboratory of Data Analysis and Computation Guilin541004 China School of Mathematical Sciences Beijing Normal University Laboratory of Mathematics and Complex Systems Ministry of Education Beijing100875 China

This paper investigates the boundedness of a broad class of operators within the framework of generalized Morrey-Banach function spaces. This class includes multilinear operators such as multilinear ω-Calderón-Zygmund operators, multilinear maximal singular integral operators, multilinear pseudo-differential operators, and multilinear square functions, as well as linear operators such as rough singular integral operators, nonintegral operators, and Stein’s square functions. The boundedness of this class of operators and their commutators on Morrey-Banach spaces is established provided they satisfy either a pointwise sparse domination assumption or the Wr property (Lerner, Lorist and Ombrosi, Math. Z. 2024), which significantly generalize the classical theory of Morrey spaces. As an application, the boundedness of iterated commutators of this class of multilinear operators is extended to Morrey-Lorentz spaces and Morrey spaces with variable *** Codes 42B35 © 2025, CC BY.

关键词： Banach spaces

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Parallel implementation of w-projection wide-field imaging

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Science Bulletin 2019年第9期64卷 586-594页

作者： Baoqiang Lao Tao An Ang Yu Wenhui Zhang Junyi Wang Quan Guo Shaoguang Guo Xiaocong Wu Shanghai Astronomical Observatory Key Laboratory of Radio AstronomyChinese Academy of Sciences Guangxi Cooperative Innovation Center of Cloud Computing and Big Data Guilin University of Electronic Technology Guangxi Colleges and Universities Key Laboratory of Cloud Computing and Complex Systems Guilin University of Electronic Technology

w-Projection is a wide-field imaging technique that is widely used in radio synthesis arrays. Processing the wide-field big data generated by the future Square Kilometre Array(SKA) will require significant updates to current methods to significantly reduce the time consumed on data processing. Data loading and gridding are found to be two major time-consuming tasks in w-projection. In this paper, we investigate two parallel methods of accelerating w-projection processing on multiple nodes: the hybrid Message Passing Interface(MPI) and Open Multi-Processing(OpenMP) method based on multicore Central Processing Units(CPUs) and the hybrid MPI and Compute Unified Device Architecture(CUDA)method based on Graphics Processing Units(GPUs). Both methods are successfully employed and operated in various computational environments, confirming their robustness. The experimental results show that the total runtime of both MPI + OpenMP and MPI + CUDA methods is significantly shorter than that of single-thread processing. MPI + CUDA generally shows faster performance when running on multiple nodes than MPI + OpenMP, especially on large numbers of nodes. The single-precision GPU-based processing yields faster computation than the double-precision processing; while the single-and doubleprecision CPU-based processing shows consistent computational performance. The gridding time remarkably increases when the support size of the convolution kernel is larger than 8 and the image size is larger than 2,048 pixels. The present research offers useful guidance for developing SKA imaging pipelines.

关键词： Radio synthesis arrays Square kilometre array Wide field imaging Parallelization w-Projection

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Detection of Android Malware Security on System Calls

Detection of Android Malware Security on System Calls

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2016 IEEE Advanced Information Management,Communicates,Electronic and Automation Control Conference(IMCEC 2016)

作者： Chen Da Zhang Hongmei Zhang Xiangli Guangxi Colleges and Universities Key Laboratory of cloud computing and complex systems Guilin University of Electronic Technology

ISBN: (纸本)9781509001668

In order to detect the security of Android software which isn't installed efficiently and accurately,this paper pro poses a new malware detection method based on system calls *** samples are pretreated by Classification to refine and distinguish characteristics of various types of Android software;Restrictions and normalization are applied to process system call frequency information to improve the detection *** with the characteristics of random forest algorithms and data obtained,optimal training model is set up,and ultimately Android software security is detected *** experiments,the detection accuracy rate of Android tool software and financial software more than 93 percent,with higher accuracy.

关键词： system calls android system malware detection classification algorithm

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A Dynamic Load Balancing Method of cloud-Center Based on SDN

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China Communications 2016年第2期13卷 130-137页

作者： WANG Yong TAO Xiaoling HE Qian KUANG Yuwen Guangxi Key Laboratory of Trusted Software Guilin University of Electronic Technology Guangxi Colleges and Universities Key Laboratory of Cloud Computing and Complex Systems Guilin University of Electronic Technology School of Information and Communication Guilin University of Electronic Technology

In order to balancing based on data achieve dynamic load flow level, in this paper, we apply SDN technology to the cloud data center, and propose a dynamic load balancing method of cloud center based on SDN. The approach of using the SDN technology in the current task scheduling flexibility, accomplish real-time monitoring of the service node flow and load condition by the OpenFlow protocol. When the load of system is imbalanced, the controller can allocate globally network resources. What＇s more, by using dynamic correction, the load of the system is not obvious tilt in the long run. The results of simulation show that this approach can realize and ensure that the load will not tilt over a long period of time, and improve the system throughput.

关键词： SDN cloud computing data center dynamic load balancing

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Text Dimensionality Reduction with Mutual Information Preserving Mapping

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Chinese Journal of Electronics 2017年第5期26卷 919-925页

作者： YANG Zhen YAO Fei FAN Kefeng HUANG Jian College of Computer Science Beijing University of Technology Guangxi Colleges and Universities Key Laboratory of cloud computing and complex systems Guilin University of Electronic Technology China Electronics Standardization Institute Central University of Finance and Economics

With the explosion of information,it is becoming increasingly difficult to get what is really *** reduction is the first step in efficient processing of large *** dimensionality can be reduced in many ways,little work has been done to achieve dimensionality reduction without changing the inner semantic relationship among high dimension *** remedy this problem,we introduced a manifold learning based method,named Mutual information preserving mapping(MIPM),to explore the low-dimensional,neighborhood and mutual information preserving embeddings of highdimensional *** results show that the proposed method is effective for the text dimensionality reduction *** MIPM was used to develop a temporal summarization system for efficiently monitoring the information associated with an event over *** respect to the established baselines,results of these experiments show that our method is effective in the temporal summarization.

关键词： Dimensionality reduction Manifold learning Temporal summarization Mutual information preserving mapping(MIPM)

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A self-adaptive multi-objective harmony search based fuzzy clustering technique for image segmentation

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Journal of Ambient Intelligence and Humanized computing 2023年第11期14卷 14943-14958页

作者： Wan, Changjing Yuan, Xiaofang Dai, Xiangshan Zhang, Ting He, Qian College of Electrical and Information Engineering Hunan University Changsha410082 China Guangxi Colleges and Universities Key Laboratory of Cloud Computing and Complex Systems Guilin University of Electronic Technology Guilin541004 China

Image segmentation can be considered as a problem of clustering since the pixels in the digital image are clustered in term of some evaluation criteria. Generally, clustering technique in image segmentation employs a single objective which can not reach ideal result for various kinds of images. Moreover, fuzzy c-means (FCM) algorithms which determine the fuzzy partition matrix of the data set by solving the clustering problem with conditional constraints and obtain the clustering output, have been verified effective and efficient for image segmentation. In fact, these FCM algorithms still have some shortcomings including: being sensitive to outliers and noise, key parameters need to be adjusted with experience. In view of this, a self-adaptive multi-objective harmony search based fuzzy clustering (SAMOHSFC) technique for image segmentation is proposed in this paper. SAMOHSFC technique encodes several cluster centers in one harmony vector and optimizes multiple objectives. In addition, we consider the spatial information of the image as an attribute of the input data set besides the attribute of gray information of input image in the SAMOHSFC. Superiority of the proposed algorithm over three classic segmentation algorithms has been verified for a synthetic and two real images from quantitative and visual aspect. In the experiment, the effect of different kinds of spatial information on the segmentation performance of the SAMOHSFC is analyzed. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.

关键词： Multiobjective optimization

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Data integrity checking with reliable data transfer for secure cloud storage

Data integrity checking with reliable data transfer for secu...

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作者： Wang, Yong Tao, Xiaoling Ni, Jianbing Yu, Yong Guangxi Cooperative Innovation Center of Cloud Computing and Big Data Guangxi Colleges Universities Key Laboratory of Cloud Computing and Complex Systems Guilin University of Electronic Technology Guilin541004 China

Currently, an increasing number of data owners prefer to store their data on remote servers due to a number of appealing advantages of cloud storage, say convenience and simplicity, scalability of the service and ubiquitous network access. However, outsourced data's transfer becomes a critical requirement for cloud users because of the emergence of various cloud storage services with different qualities of services. Therefore, the users might not only be anxious about the status of their data on cloud servers but also care whether the data are transferred entirely to the new cloud without corruption and whether the data on original cloud are discarded. To address these challenging issues, in this paper, we propose a novel auditing scheme for cloud storage services characterised by secure data transfer, provable data erasure, high error detection probability, confidential data storage. The proposed scheme can guarantee the integrity of remote data when the data are hosted on cloud servers and are transferred between two clouds, and secure deletion of the transferred data on the original cloud. Copyright © 2018 Inderscience Enterprises Ltd.

关键词： Data transfer

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Publicly verifiable data transfer and deletion scheme for cloud storage 20th

Publicly verifiable data transfer and deletion scheme for cl...

引用

20th International Conference on Information and Communications Security, ICICS 2018

作者： Yang, Changsong Wang, Jianfeng Tao, Xiaoling Chen, Xiaofeng Xidian University Xi’an710071 China Guangxi Colleges and Universities Key Laboratory of Cloud Computing and Complex Systems Guilin University of Electronic Technology Guilin541004 China

ISBN: (纸本)9783030019495

As one of the most important services in the cloud computing, cloud storage service can provide boundless storage resources for clients. Because of its tremendous advantages, cloud storage service has attracted widespread attentions and plenty of clients. By employing cloud storage service, the data owners can migrate the heavy overhead of maintaining their data to the cloud server. However, upon uploading their data to the cloud server, the data owners will lose the direct control over their data, therefore, the computations over the data will be performed by the cloud server, for example, data transfer and deletion. However, during the data transfer and deletion processes, the cloud server may not perform these operations honestly for economic interests. That will make data transfer and deletion become new security challenges. In this paper, we propose a novel data transfer and deletion scheme that supporting public verifiability. In our construction, if the cloud server is malicious, the data owners can detect the cloud server’s unfaithful data transfer or dishonest data deletion by verifying the returned proofs efficiently. Moreover, with the utilization of vector commitment, our novel scheme can realize public verifiability without any trusted third party. © Springer Nature Switzerland AG 2018.

关键词： Data transfer

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A higher-order distributed Pi calculus and web services description language representation for cloud service

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Journal of Computational and Theoretical Nanoscience 2016年第7期13卷 4812-4824页

作者： Li, Desheng He, Qian College of Information and Network Engineering Anhui Science and Technology University Fengyang County Chuzhou City Anhui Province233100 China Guangxi Colleges Universities Key Laboratory of Cloud Computing and Complex Systems Guilin University of Electronic Technology Guilin City Guangxi Zhuang Autonomous Region541004 China

cloud service is considered to be an attempt to change the traditional calculation model and the revolutionary technology of the system architecture, whose idea is similar to the grid computing. For this infrastructure, programmer must take into consideration of many complex aspects: the distribution of data and computing, parallel computing on different domains, processors, computers and load balance issues. In this article, we first define an extended Pi calculus to solve the distribution of cloud service by extension of domain, migration application of abstraction process, and the high-order trait by extension of high-order functionality. Based on the proposed calculus, the high-order cloud service components and their compositions are defined by the terms of the calculus. Hence, the proposed Higher-Order cloud Service Component (HOCSC) is a novel SOA programming scheme, which can be widely used in a variety of cloud service environments. As a generic component, it can be parameterized and customized well. Unlike to the ordinary component, not only the data but also the running code can be customized. Compared to the First-Order cloud services and their compositions, the essential characteristics of Higher-Order ones lie in the abstraction, application and migration application of abstraction process. In view of the special construction of cloud service composition, necessary extensions to WSDL have been carried on to represent the real services. © 2016 American Scientific Publishers All rights reserved.

关键词： WSDL

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