SLSB-forest:approximate k nearest neighbors searching on high dimensional data by Tu QIAN, Jiangbo QIAN, Yihong DONG, Huahui CHEN

“…The study of approximate k nearest neighbors query has attracted broad attention.Local sensitive hash is one of the mainstream ways to solve this problem.Local sensitive hash and its varients have noted the following problems:the uneven distribution of hashed data in the buckets,it cannot calculate the appropriate query range (for the parameter k) to build index.To tackle the above problem,a new data struct which called SLSB-forest was presented.The SLSB-forest combined the LSH and the B-tree to maintain the amount of bucket’s data in reasonable range.Two query algorithms were proposed:fast and accurate priority search.Theory and experimental results prove that query range can dynamic change during searching approximate k nearest neighbors.…”
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An Approximation Theorem and Generic Convergence of Solutions of Inverse Quasivariational Inequality Problems by Ting Liu, Wensheng Jia

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ILL-POSEDNESS AND STABILITY ESTIMATE FOR THE HEAT EQUATION BACKWARD IN TIME WITH DIRICHLET AND INTEGRAL BOUNDARY CONDITIONS by Nguyen Van Duc, Phan Hoai Linh

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Accurate analysis method of network element performance and service data characteristics by Xuanyu GUO

“…The performance of telecommunication network was usually analyzed by the KPI of network management system.If there was something wrong with the KPI,it needed the network optimization personnel to position problems.The efficiency of analyzing result depended on the quality of the network optimization personnel.Meanwhile,the analysis of data performance was rough estimated.As the unified deep packet inspection could show out the smaller granularity of the service status and channel quality,the analysis method of service data and node performance was discussed.By data slice and data association of control plane XDR and user plane XDR,the performance was analyzed with smaller granularity to show the quality of the network and the experience of users.So the user experience was showed out by different applies and services with different scenes,and the data characteristics of the XDR were more clearly.Finally,it improves the efficiency of network optimizing,the user feeling and the capability of data realization.…”
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Dual-functional radar-communication waveform trade-off optimal design with peak average power ratio constraint by Yuefeng HOU, Xiao ZHAO, Jianing LIU, Rongkang ZHOU, Wenbo WANG, Feng TIAN

“…Based on the same hardware platform, spectrum resources, and transmit waveforms, dual-function radar-communication (DFRC) can achieve radar and communication functions at the same time, which provides a strong support for realizing integrated sensing and communication (ISAC).Aiming at the dual-function radar communication system, radar and communication waveform trade off optimal design was studied, and a non-convex optimization problem was constructed with quadratic equality and inequality constraints under the constraints of transmission energy consumption and peak-to-average ratio (PAPR).The nonlinear equality constrained alternative direction method of multipliers was used to decompose the non-convex optimization problem into three sub-problems.The simulation results show that the optimized dual-function radar communication waveform can approach the ideal radar waveform and realize the optimal performance tradeoff between radar and communication.…”
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RELIABILITY ESTIMATION OF MECHANICAL SEALS BASED ON ARTIFICIAL HUMMINGBIRD ALGORITHM AND THREE⁃PARAMETER WEIBULL DISTRIBUTION by LI AnHong, ZHU JunHua, YU Ling

“…In order to quickly and accurately evaluate the reliability of mechanical seals,the three⁃parameter Weibull distribution was used to model the mechanical seal failure data.The reliability evaluation problem of mechanical seal was transformed into a constraint optimization problem,and a reliability evaluation method based on artificial hummingbird algorithm(AHA)was proposed.Through numerical simulation and case analysis,maximum likelihood estimation(MLE),improved Harris Hawks optimization(IHHO)algorithm and AHA were used to compare calculation accuracy and operational efficiency in solving the Weibull distribution parameter estimation problems.The results show that the parameter estimation using AHA has advantages of faster convergence speed and higher accuracy,and it can shorten the optimization time and improve the accuracy compared with MLE algorithm and IHHO algorithm,which provides a new and efficient method for Weibull parameter estimation of mechanical seals.…”
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Intercompany training as production pedagogical process by Evgeny A. Korchagin, Rais S. Safin, Adelya I. Tuyusheva

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Differential privacy protection technology and its application in big data environment by Yu FU, Yihan YU, Xiaoping WU

“…The privacy protection in big data is a research hotspot in the field of cyberspace security.As a strict and provable definition of privacy protection,studying application status of differential privacy protection in big data environment can provide reference and guidance for its subsequent system applications.Based on the analysis of the related concepts and technical characteristics of differential privacy protection,the application of differential privacy protection technology was reviewed in data distribution and analysis,cloud computing and big data computing,location and trajectory services and social networks,which expounded the current representative research results and analyzed its existing problems.The research shows that the existing results have made effective innovation and exploration of differential privacy protection applications from the aspects of differential privacy protection mechanism,noise addition mechanism and location,and data processing methods,and the related results have been cross-applied in different scenarios.Finally,four major problems that need to be studied in the further systematic application of differential privacy protection in the big data environment are proposed.…”
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Prospects for the application of unified tax payment in the digital economy by E. L. Gulkova, M. V. Karp, M. V. Tipalina

“…The purpose of the paper is to analyze the use of the unified tax payment from the perspective of its impact on tax administration and taxpayers’ activities.In this article, the authors set the following tasks: to determine the procedure for paying the unified tax payment; to assess the possibility of expanding the practice of its application and identify possible problems.The data on the voluntary remittances of the unified tax payment by physical persons during the period from 2019 to 2022 is presented. …”
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O ensino problêmico como via para a formação do pensamento profissional metodológico: O caso do professor de Matemática by Isauro Beltrán Núñez, Alison Luan Ferreira da Silva

“…Majmutov sobre as situações problêmicas baseadas em contradições dialéticas como fonte do pensamento profissional do professor de Matemática, voltado para a transformação criativa de suas práticas de ensino que potencializam o desenvolvimento intelectual dos estudantes na escola. …”
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APPROXIMATELY SINGULAR WAVELET by V. M. Romanchak

“…The universal algorithm of approximation makes it possible to apply it to approximate one-dimensional and multidimensional functions, in decision support systems, in the processing of stochastic information, pattern recognition, and solution of boundary-value problems.The introduction explain the idea of the method of singular wavelets – to combine the theory of wavelets with the Nadaraya-Watson kernel regression estimator. …”
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Applications of DSP to Explicit Dynamic FEA Simulations of Elastically-Dominated Impact Problems by Ted Diehl, Doug Carroll, Ben Nagaraj

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Problems of the development of the state-private partnership in the Russian Federation by I. I. Kohanovskaya, A. A. Petin

“…Among the methods used are comparative, formal-legal, normative, logical, systemic, structural and functional.The adopted amendments and changes in the regulatory framework did not solve all the problems and did not give private investors’ confidence in the implementation of public-private partnership projects, since its regulatory support does not allow to eliminate the historically formed problems.The key problems and limitations of the development of public-private partnership are revealed in the arcticle: the lack of a national strategy for the development of public-private partnership; insufficient level of development of regulatory and legal regulation; the question remains the solution of corruption component; the lack of an integrated system of public administration of public-private partnership; the lack of unification and consistency of Federal, regional and municipal legislation; the problems of privatization and redistribution of property.…”
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Glutathione S-transferase polymorphism in ethnic groups living in Eastern Siberia by E. V. Belyaeva, O. A. Yershova, T. A. Astahova, O. V. Bugun

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Identification of quality problems staff vocational training by Vera V. Zhivaeva, Vadim A. Nikovaev, Svetlana N. Parfenova, Elena P. Tuponosova

“…The value of the study for the theory and practice of software consists in constructing an identification procedure to support the adoption of informed decisions when choosing actions to prevent the development of quality problems.The developed identification procedure can be applied in the software system, providing an acceptable level of satisfaction of the enterprise personnel with the quality of training.…”
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مشروعات تخرج طالبات قسم علم المعلومات بجامعة أم القرى : دراسة لاتجاهاتها الکمیة والمنهجیة والمشکلات التى تواجهها الطالبات... by د. محمد محمد النجار

“…Weakness in using correct language grammar for research comes at the top rank in the linguistic problems.The researcher suggests some recommendations aiming at improving graduation projects and their marketing.…”
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