检索结果-南通市图书馆

Artificial intelligence applications in finance:a survey

Journal of Management Analytics 2023年第4期10卷 676-692页

作者： Xuemei Li Alexander Sigov leonid Ratkin leonid a.ivanov Ling Li Department of Information Technology and Decision Sciences Strome College of BusinessOld Dominion UniversityNorfolkVAUSA Department of Electronic Machinery University of Electronic Science and Technology of ChinaChengduPeople’s Republic of China Russian Technological University MoscowRussian Federation Russian Academy of Sciences MoscowRussian Federation Russian Academy of Engineering MoscowRussian Federation

Finance is in our daily *** invest,borrow,lend,budget,and save *** also provides guidelines for corporation and government spending and revenue *** statistical solutions such as regression,PCA,and CFA have been widely used in financial forecasting and *** the increasing interest in artificial intelligence in recent years,this paper reviews the Artificial Intelligence(AI)techniques in the finance domain systematically and attempts to identify the current AI technologies used,major applications,challenges,and trends in *** explores AI-related articles in Finance in IEEE Xplore and EI compendex *** suggest AI has been engaged in Finance in financial forecasting,financial protection,and financial analysis and decision-making *** forecasting is one of the main sub-fields of Finance affected by AI *** major AI technology used is supervised *** learning has gained popular in recent *** could be used to address some emerging topics.

关键词： machine learning artificial intelligence finance

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Argo floats revealing bimodality of large-scale mid-depth circulation in the North Atlantic

引用

Acta Oceanologica Sinica 2008年第2期27卷 1-10页

作者： CHU Peter C ivanov leonid M MELNICHENKO Oleg V LI Rongfeng Department of Oceanography Naval Postgraduate School Monterey California USA International Pacific Research Center University of Hawaii at Manoa Hawaii USA Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China

Analysis of Argo float trajectories at 1 000 m and temperature at 950 m in the North Atlantic between November 2003 and January 2005 demonstrates the existence of two different circulation modes with fast transition between them. Each mode has a pair of cyclonic - anticyclonic gyres. The difference is the location of the cyclonic gyre. The cyclonic gyre stretches from southeast to northwest in the first mode and from the southwest to the northeast in the second mode. The observed modes strongly affect the heat and salt transport in the North Atlantic. In particular, the second mode slows down the westward transport of the warm and saline water from the Mediterranean Sea.

关键词： Argo trajectory data Atlantic Ocean biomodality mid-depth circulation optimal spectral decomposition

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Estimating Circulation Patterns by Combining Velocity and Tracer Observations

引用

Open Journal of Applied Sciences 2013年第1期3卷 8-14页

作者： leonid I. Piterbarg leonid M. ivanov Department of Mathematics University of Southern California Kaprielian Hall Los Angeles USA Naval Postgraduate School Moneterey Monterey USA

A method is suggested for estimating unknown velocities by combining their sparse measurements with observations of a tracer on a fine grid advected by the underlined velocity field. The dependence of the estimation error on a coarseness parameter and parameters of the flow in question is investigated numerically using synthetic velocity fields typical for real oceanic circulation. In an advanced version of the estimation procedure uncertainty in the transport equation forcing is modeled via a fuzzy sets approach. We also compare the method with a traditional interpolation which is in contrast to the developed procedure unable to capture the flow details.

关键词： Data Fusion Inverse Problem Surface Velocities Fuzzy Sets

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

俄罗斯东部地区发生由黑龙江立克次氏体(Rickettsia heilongjiangensis)引起的急性斑疹伤寒病例

引用

中国人兽共患病学报 2004年第7期 652-653页

作者： Oleg Y. Mediannikov ,Yuri Sidelnikov ,leonid ivanov ,颜松龄厦门市第二医院

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

High-voltage Nanosecond Pulse Generators of the ＂PROTEUS＂ Line for Discharge with Runaway Electrons Applications

引用

高电压技术 2013年第10期39卷 2506-2513页

作者： Anatoly N. Maltsev Maxim V. Martynov Alexey V. Mikov Viktor G. Podkovyrov leonid L. Zhukov Alexander Yu. ivanov Institute of Atmospheric Optics Russian Academy of Sciences Tomsk 634021 Russia Electrodynamic Systems & Technologies LLC Tomsk 634021 Russia Institute of High-current Electronics Russian Academy of Sciences Tomsk 634021 Russia

Many applications of gas discharge with runaway electrons (DRE) require high-voltage pulse generators (HVPG) with very high increasing rate of output voltage (up to 100 kV/ns), long operation life and low cost. Such HVPGs have to be controlled by external computer for working in combination with other modern equipment. In this paper, some HVPGs development for DRE application in industry and medicine are described. The functional structure and operation principles are discussed for the HVPG of "PROTEUS' line. It is shown that on different loads, the "PROTEUS" generators can produce high-voltage nanosecond pulse with energy up to 1 J, output voltage amplitude from zero to 150 kV, and pulse repetition frequency from zero to 2 000 Hz. Four models of the "PROTEUS" generators are described. The output voltage leading front duration is 150 ns for the "PROTEUS-I" model, 10-20 ns for the "PROTEUS-II", 2 ns for the "PROTEUS-IH" and 0.5 ns for the "PROTEUS-IV". DRE parameters obtained by using "PROTEUS" HVPGs are demonstrated. Some results of DRE application in solid-state surface modification of natural textile and polymer films are shown as well.

关键词： PROTEUS 纳秒脉冲发生器电子应用气体放电高压失控输出电压脉冲重复频率

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

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

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

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

在线全文

在线全文

在线全文

在线全文

在线全文

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：