检索结果-内蒙古大学图书馆

Organic Matter of the Water-stable Structural Unites of Haplic Chernozem in Contrasting Variants of Land Use (Steppe vs. bare Fallow)

引用

Moscow University Soil science Bulletin 2024年第1期78卷 S1-S11页

作者： Artemyeva, Z. S. Zasukhina, E. S. Varlamov, E. B. Tsomaeva, E. V. Kogut, B. M. Dokuchaev Soil Science Institute Moscow Russia FRC “Computer Science and Control” RAS Moscow Russia

The organic matter of water-stable macro- (2–1 mm) and free microaggregates (<0.25 mm) isolated from the 2–1 mm air-dry macroaggregates of Haplic Chernozem in the contrasting land use variants was studied by granulo-desitometric fractionation. It was revealed that water-stable free microaggregates are only parts of disintegrated macroaggregates. The composition of microaggregates unstable under the sonication (mWSA) within structural units of different sizes (macro- (WSAma) and microaggregates (WSAmi)) has been studied in detail. The composition of mWSA within WSA of different size is completely identical; they differ only in size, quantity, and packing density. Within WSAmi, the size and quantity of mWSA are by 1.7- and 1130-fold smaller than those within WSAma. The packing density of mWSAma is 1.5-fold less than that of mWSAmi.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Estimation of Errors Rates for FCA-based knowledge discovery? 8

Estimation of Errors Rates for FCA-based knowledge discovery...

引用

8th International Workshop "What can FCA do for Artificial Intelligence?", FCA4AI 2020

作者： Vinogradov, Dmitry V. Frc Computer Science and Control Ras Moscow119333 Russia Russian State University for Humanities Moscow125993 Russia

In this paper we present an approach for estimating the error rate of bitset representation of object descriptions in FCA-based knowledge discovery. Errors of this kind lead to overfitting phenomenon. The key technique used in our approach is based on the Möbius function on finite partial ordered sets, which was introduced by G.-C. Rota. © 2020 CEUR-WS. All rights reserved.

关键词： Errors

来源：评论

学校读者我要写书评

暂无评论

Continuous Attributes for FCA-based Machine Learning 8

Continuous Attributes for FCA-based Machine Learning

引用

8th International Workshop "What can FCA do for Artificial Intelligence?", FCA4AI 2020

作者： Vinogradov, Dmitry V. Frc Computer Science and Control Ras Moscow119333 Russia Russian State University for Humanities Moscow125993 Russia

In this paper we extend previously developed approach to FCA-based machine learning with discrete attributes to the case with objects described by continuous attributes. We combine the logistic regression with an entropy-based separation of attribute values, which is similar to Quinlan's approach to dealing with continuous attributes. We apply Cox-Snell and McFadden significance criteria to logistic regression. Finally, we present the results of applying the new version of FCA-based learning system to the analysis of Wine Quality dataset from UCI Machine Learning Repository. Copyright © 2020 for this paper by its authors.

关键词： Entropy

来源：评论

学校读者我要写书评

暂无评论

The Dual Simplex-Type Method for Linear Second-Order Cone Programming Problem 11th

The Dual Simplex-Type Method for Linear Second-Order Cone Pr...

引用

11th International Conference on Optimization and Applications, OPTIMA 2020

作者： Zhadan, Vitaly Dorodnicyn Computing Centre FRC "Computer Science and Control" of RAS 40 Vavilova str. Moscow119333 Russia

ISBN: (纸本)9783030628666

The linear second-order cone programming problem is considered. For its solution, the dual simplex-type method is proposed. The method is the generalization of the standard dual simplex method for linear programming for cone programming. At each iteration the primal variable is defined, and pivoting of the dual variable is carried out. The proof of the local convergence is given. © 2020, Springer Nature Switzerland AG.

关键词： Second-order cone programming

来源：评论

学校读者我要写书评

暂无评论

Computation of areas of probable detection of oil pollution on the sea surface as valuation of the spatial uncertainty in oil spill modelling

Computation of areas of probable detection of oil pollution ...

引用

Ocean Studies (ICOS), International Conference on

作者： Vyacheslav Solbakov Sergei Zatsepa Aleksander Ivchenko Yulia Yurezanskaya Federal Research Centre “Computer Science and Control” of the Russian Academy of Sciences (FRC CSC RAS) Moscow Russian Federation N.N.Zubov’s State Oceanographic Institute Roshydromet Moscow Russian Federation

ISBN: (纸本)9781665473736

We present a new method for a quantitative estimation of the areas of probable detection of oil pollution on the sea surface as evaluation of the spatial uncertainty in oil spill modeling. Unavoidable errors in the assessment of wind and currents forcing are the reason for presenting the simulated oil spill position as a coordinates probability density function (PDF). The Fokker-Planck equation is used to calculate the PDF at any time after oil discharge. The method allows to build a stable estimate for the boundaries of the area in which an oil spill can be detected with a given probability level. The model can be used for both instantaneous point source spill and distributed continuous source spill. The computation was illustrated by simulations that were made for a hypothetical oil spill with the use of operational hydrometeorological forecasts in the Arctic region. The described approach is suitable for joint use with any oil spill model on the sea surface as means for constructing zones of possible spill detection to support the responders’ requirements. Results of the calculations presented as polygons with a given probability assigned can be implemented in any GIS.

关键词： Sea surface Uncertainty Oils Surface contamination Computational modeling Oil pollution Probability density function

来源：评论

学校读者我要写书评

暂无评论

DSP Filter Kernels Preliminary Benchmarking for Recurrent Data-flow Architecture

DSP Filter Kernels Preliminary Benchmarking for Recurrent Da...

引用

IEEE NW Russia Young Researchers in Electrical and Electronic Engineering Conference (EIConRusNW)

作者： Yury A. Stepchenkov Dmitry V. Khilko Yury I. Shikunov Georgy A. Orlov Institute of Informatics Problems Federal Research Center "Computer Science and Control" of the Russian Academy of Sciences (FRC CSC RAS) Moscow Russia

ISBN: (数字)9781665404761

ISBN: (纸本)9781665446426

The article discusses the results of a preliminary assessment of the data-flow recurrent architecture's performance on a subset of digital signal processing key tasks. Various implementations of vector convolution, FIR filters, IIR filters, adaptive filter, and 256-Point-In-Place FFT are evaluated. The implementation of the listed algorithms is based on the TMS320C55x DSP Library. The preliminary results showed that the performance of the recurrent architecture based on data-flow principles is not inferior to the TMS320C55x, based on von Neumann principles, in terms of the number of computation cycles. Architecture improvement suggestions are presented.

关键词： Finite impulse response filters computer architecture IIR filters Benchmark testing Libraries Kernel Task analysis

来源：评论

学校读者我要写书评

暂无评论

Spatial modeling of resources, events and situations in complex dynamic systems by methods and tools of cognitive semiotics and geoinformatics 10

Spatial modeling of resources, events and situations in comp...

引用

Russian Advances in Fuzzy Systems and Soft Computing: Selected Contributions to the 10th International Conference on "Integrated Models and Soft Computing in Artificial Intelligence", IMSC 2021

作者： Kolesnikov, Alexander V. Rumovskaya, Sophiya B. Soldatov, Sergei A. Jasinski, Eric V. Immanuel Kant Baltic Federal University 14 A. Nevskogo st. Kaliningrad236016 Russia Kaliningrad Branch The FRC "Computer Science and Control" The RAS 5 Gostinaya st. Kaliningrad236022 Russia MTS Digital LLC 8 Novoryazanskaya st. Moscow107078 Russia

In the paper, we represent sign spatial modeling of resources, events, and situations in systems with high dynamics of technological processes. An analytical overview of the main directions of spatial modeling is given. It includes topological modeling (geosituational direction with spatial objects, models and actions with data coordinated in space) and algebraic modeling (logic-linguistic direction, pseudophysical logic of space and time, spatial logic, models and action with mathematical symbols). The subjective and visual coding of the locativeness of static and dynamic resources, events, and situations on the example of spatial modeling of the area of the regional electric power system is considered. © 2021 Copyright for this paper by its authors. Use permitted under Creative Commons License Attribution 4.0 International (CC BY 4.0).

关键词： Cognitive systems

来源：评论

学校读者我要写书评

暂无评论

Theorems of Alternative and Optimization 1

引用

11th International Conference on Optimization and Applications, OPTIMA 2020

作者： Evtushenko, Yuri Golikov, Alexander Dorodnicyn Computing Centre FRC "Computer Science and Control" of RAS Vavilov Street 40 Moscow119333 Russia 9 Institutskiy per. Moscow Region Dolgoprudny141701 Russia

ISBN: (数字)9783030628673

ISBN: (纸本)9783030628666

A new elementary proof of Farkas’ theorem is proposed. The proof is based on the consideration of the always solvable problem of minimizing the residual of a system of linear equations/inequalities and the necessary and sufficient conditions for the minimum of this problem. Minimizing the residuals of an inconsistent system makes it easy to calculate the normal solution to a consistent system. The connection between Farkas’ theorem and linear and quadratic programming is shown. A new version of the theorem on alternatives is proposed. © 2020, Springer Nature Switzerland AG.

关键词： Quadratic programming

来源：评论

学校读者我要写书评

暂无评论

Dual Newton’s Methods for Linear Second-Order Cone Programming 19th

Dual Newton’s Methods for Linear Second-Order Cone Programm...

引用

19th International Conference on Mathematical Optimization Theory and Operations Research, MOTOR 2020

作者： Zhadan, Vitaly Dorodnicyn Computing Centre FRC "Computer Science and Control" of RAS 40 Vavilova str. Moscow119333 Russia 9 Institutskiy per. DolgoprudnyMoscow Region141701 Russia

ISBN: (纸本)9783030499877

The linear second-order cone programming problem is considered. For its solution, two dual Newton’s methods are proposed. These methods are constructed with the help of optimality conditions. The nonlinear system of equations, obtained from the optimality conditions and depended only from dual variables, is solved by the Newton method. Under the assumption that there exist strictly complementary solutions of both primal and dual problems the local convergence of the methods with super-linear rate is proved. © 2020, Springer Nature Switzerland AG.

关键词： Second-order cone programming

来源：评论

学校读者我要写书评

暂无评论

Approximation of multi-dimensional edgeworth-pareto hull in non-linear multi-objective problems 9th

Approximation of multi-dimensional edgeworth-pareto hull in ...

引用

9th International Conference on Numerical Geometry, Grid Generation, and Scientific Computing, celebrating the 150th anniversary of Georgy F. Voronoi, NUMGRID 2018

作者： Lotov, Alexander V. Ryabikov, Andrey I. Dorodnicyn Computing Center of FRC Computer Science and Control RAS Moscow Russia

ISBN: (纸本)9783030234355

The paper is devoted to approximating the multi-dimensional Edgeworth-Pareto Hull, which is a tool for decision support in multi-objective optimization problems. The notion of the Edgeworth-Pareto Hull is introduced. It is demonstrated how the effective hull of a non-convex multi-dimensional set given by a mapping can be approximated by the product (intersection) of a finite number of Edgeworth-Pareto Hulls. Then, a new numerical technique for approximating the non-convex EPH for complicated problems is proposed and its properties are discussed. © Springer Nature Switzerland AG 2019.

关键词： Multiobjective optimization

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：