检索结果-内蒙古大学图书馆

A statistical algorithm for Estimating Chlorophyll Concentration in the New Caledonian Lagoon

REMOTE SENSING 2016年第1期8卷 45页

作者： Wattelez, Guillaume Dupouy, Cecile Mangeas, Morgan Lefevre, Jerome Touraivane Frouin, Robert Univ New Caledonia Sci & Technol Dept Nouville Campus BP R4 Noumea 98851 New Caledonia Univ Toulon & Var Aix Marseille Univ CNRS Mediterranean Inst OceanogINSUUM 110 F-13288 Marseille France Inst Rech Dev BP A5 98848 Noumea 98848 New Caledonia Univ French Guiana Univ Reunion Univ Montpellier 2 Univ French West IndiesIRDESPACE DEV UMR 228 F-34093 Montpellier France Univ Toulouse CNES CNRS LEGOS IRDUPS F-31401 Toulouse France Univ Calif San Diego Scripps Inst Oceanog La Jolla CA 92037 USA

Spatial and temporal dynamics of phytoplankton biomass and water turbidity can provide crucial information about the function, health and vulnerability of lagoon ecosystems (coral reefs, sea grasses, etc.). A statistical algorithm is proposed to estimate chlorophyll-a concentration ([chl-a]) in optically complex waters of the New Caledonian lagoon from MODIS-derived remote-sensing reflectance (R-rs). The algorithm is developed via supervised learning on match-ups gathered from 2002 to 2010. The best performance is obtained by combining two models, selected according to the ratio of R-rs in spectral bands centered on 488 and 555 nm: a log-linear model for low [chl-a] (AFLC) and a support vector machine (SVM) model or a classic model (OC3) for high [chl-a]. The log-linear model is developed based on SVM regression analysis. This approach outperforms the classical OC3 approach, especially in shallow waters, with a root mean squared error 30% lower. The proposed algorithm enables more accurate assessments of [chl-a] and its variability in this typical oligo- to meso-trophic tropical lagoon, from shallow coastal waters and nearby reefs to deeper waters and in the open ocean.

关键词： chlorophyll-a concentration MODerate resolution Imaging Spectroradiometer (MODIS) ocean color remote sensing statistical algorithm oligotrophic waters New Caledonia coral lagoon

来源：评论

学校读者我要写书评

暂无评论

Artificial-intelligence-model to optimize biocide dosing in seawater-cooled industrial process applications considering environmental, technical, energetic, and economic aspects

引用

BIOFOULING 2024年第5-6期40卷 366-376页

作者： Garcia, Sergio Boullosa-Falces, David Sanz, David S. Trueba, Alfredo Gomez-Solaetxe, Miguel Angel Univ Cantabria Dept Ciencias Tecn Nav & Construcc Naval Santander Spain Univ Basque Country UPV EHU Dept Energy Engn Portugalete Spain

This research introduces an Artificial Intelligence (AI) based model designed to concurrently optimize energy supply management, biocide dosing, and maintenance scheduling for heat exchangers. This optimization considers energetic, technical, economic, and environmental considerations. The impact of biofilm on heat exchangers is assessed, revealing a 41% reduction in thermal efficiency and a 113% increase in flow frictional resistance of the fluid compared to the initial state. Consequently, the pump's power consumption, required to maintain hydraulic conditions, rises by 9%. The newly developed AI model detects the point at which the heat exchanger's performance begins to decline due to accumulating dirt, marking day 44 of experimentation as the threshold to commence the antifouling biocide dosing. Leveraging this AI model to monitor heat exchanger efficiency represents an innovative approach to optimizing antifouling biocide dosing and reduce the environmental impact stemming from industrial plants.

关键词： Artificial intelligence energy-saving seawater biofilm heat exchanger statistical algorithm

来源：评论

学校读者我要写书评

暂无评论

A statistical algorithm for estimating chlorophyll concentration from MODIS data

A statistical algorithm for estimating chlorophyll concentra...

引用

Conference on Ocean Remote Sensing and Monitoring from Space

作者： Wattelez, Guillaume Dupouy, Cecile Mangeas, Morgan Lefevre, Jerome Touraivane, T. Frouin, Robert Univ New Caledonia Campus Nouville BP R4 Noumea 98851 New Caledonia IRD MOI Noumea 98848 New Caledonia IRD ESPACE DEV Noumea 98848 New Caledonia IRD LEGOS Noumea 98848 New Caledonia Univ Calif San Diego Scripps Inst Oceanog La Jolla CA 92093 USA

ISBN: (纸本)9781628413281

We propose a statistical algorithm to assess chlorophyll-a concentration ([chl-a]) using remote sensing reflectance (Rrs) derived from MODerate Resolution Imaging Spectroradiometer (MODIS) data. This algorithm is a combination of two models: one for low [chl-a] (oligotrophic waters) and one for high [chl-a]. A satellite pixel is classified as low or high [chla] according to the Rrs ratio (488 and 555 nm channels). If a pixel is considered as a low [chl-a] pixel, a log-linear model is applied;otherwise, a more sophisticated model (Support Vector Machine) is applied. The log-linear model was developed thanks to supervised learning on Rrs and [chl-a] data from SeaBASS and more than 15 campaigns accomplished from 2002 to 2010 around New Caledonia. Several models to assess high [chl-a] were also tested with statistical methods. This novel approach outperforms the standard reflectance ratio approach. Compared with algorithms such as the current NASA OC3, Root Mean Square Error is 30% lower in New Caledonian waters.

关键词： Chlorophyll-a (chl-a) MODerate Resolution Imaging Spectroradiometer ( MODIS) Ocean color Remote-sensing statistical algorithm Oligotrophic waters New Caledonian lagoon

来源：评论

学校读者我要写书评

暂无评论

Artificial intelligence and ChatGPT in Orthopaedics and sports medicine

引用

JOURNAL OF EXPERIMENTAL ORTHOPAEDICS 2023年第1期10卷 1-7页

作者： Fayed, Aly M. Mansur, Nacime Salomao Barbachan de Carvalho, Kepler Alencar Behrens, Andrew D'Hooghe, Pieter Netto, Cesar de Cesar Univ Iowa Hosp & Clin Dept Orthopaed & Rehabil Iowa City IA 52242 USA Aspetar Orthoped & Sports Med Hosp Doha Qatar Duke Univ Dept Orthopaed Surg Durham NC USA

Artificial intelligence (AI) is looked upon nowadays as the potential major catalyst for the fourth industrial revolution. In the last decade, AI use in Orthopaedics increased approximately tenfold. Artificial intelligence helps with tracking activities, evaluating diagnostic images, predicting injury risk, and several other uses. Chat Generated Pre-trained Transformer (ChatGPT), which is an AI-chatbot, represents an extremely controversial topic in the academic community. The aim of this review article is to simplify the concept of AI and study the extent of AI use in Orthopaedics and sports medicine literature. Additionally, the article will also evaluate the role of ChatGPT in scientific research and publications.

关键词： Artificial intelligence ChatGPT Machine learning Distance mapping statistical algorithm

来源：评论

学校读者我要写书评

暂无评论

Dynamic High-speed Traffic Flow Statistics algorithm Based on Artificial Intelligence Simulation Technology

Dynamic High-speed Traffic Flow Statistics Algorithm Based o...

引用

2023 International Conference on Integrated Intelligence and Communication Systems, ICIICS 2023

作者： Yue, Guiyang Wang, Yangong Zhang, Bin Shao, Zhengda Highway Monitoring & Emergency Response Center Ministry of Transport of the P.R.C Beijing China Highway Authority Ministry of Transport of the P.R.C Beijing China China Academy of Teansportation Sciences Ministry of Transport of the P.R.C Beijing China

ISBN: (纸本)9798350315455

The rapid development of urbanization brings a large number of people to the city, and the traffic demand generated by people's travel has exceeded the traffic supply capacity of urban roads, resulting in the overload of traffic infrastructure. Urban traffic flow statistics is an important link of state road traffic control and management, is the foundation of the intelligent traffic analysis, as the city scale expands unceasingly, traffic present a variety of complex shape, how to doing a lot of congestion in complex scene surveillance video for accurate statistical traffic has become one of research hotspots in the field of intelligence traffic. This paper mainly carries on the research of dynamic high-speed traffic flow statistics algorithm based on artificial intelligence simulation technology. Firstly, the YOLO algorithm is optimized for vehicle detection, and a high-speed traffic flow statistics system based on YOLO algorithm is designed and implemented. The UA-DeTRAc data set is used to test the system performance, and the detection result shows that the system accuracy of this paper is up to 95%. © 2023 IEEE.

关键词： artificial intelligence high-speed traffic simulation technology statistical algorithm traffic statistics

来源：评论

学校读者我要写书评

暂无评论

Chemometrics-based signal processing methods for biosensors in health and environment: A review

引用

ELECTROANALYSIS 2024年第7期36卷 e202300207-e202300207页

作者： Wu, Wanqing Yang, Jianlei Zhou, Yu Zheng, Qinggong Chen, Qing Bai, Zhaoao Niu, Jiaqi Dalian Maritime Univ Marine Engn Coll Dalian 116026 Peoples R China Engn Technol Ctr Ship Safety & Pollut Control Dalian 116026 Liaoning Peoples R China Liaoning Normal Univ Sch Life Sci Dalian 116026 Peoples R China Dalian Maritime Univ Marine Engn Coll Dalian 116026 Peoples R China

The increasing apprehension for health, safety and quality of life in modern society has resulted in the widespread use of biosensors. Biosensors are characterised by their high sensitivity, real-time monitoring, and easy integration, making them indispensable for environmental monitoring on-site, as well as invasive and non-invasive health monitoring. Signal processing and analysis are crucial to biosensor applications, with an important role being played by chemometrics in this regard. This review presents a review of recent research findings in the fields of environmental and health monitoring. In addition, it investigates the role that chemometrics plays in the processing and analysis of biosensor data. The research comprises conventional statistical techniques, including principal component analysis and wavelet transform, as well as modern techniques of artificial intelligence, such as machine learning with neural networks. Through the examination of various algorithm strengths and weaknesses, significant recommendations are offered for biosensor applications. Furthermore, the assessment delivers focused proposals for surmounting signal processing difficulties in biosensors. Additionally, the review contains a concise analysis and reflection on the issue of multiple detection and analysis. The review intends to give essential guidance to future researchers in selecting efficient and sensible methods of data processing for their studies. image

关键词： artificial intelligence algorithm biosensors chemometrics signal processing statistical algorithm

来源：评论

学校读者我要写书评

暂无评论

Application of computer technology in Ecommerce 3

Application of computer technology in Ecommerce

引用

3rd International Conference on Electronics and Communication;Network and Computer Technology (ECNCT)

作者： Wei, HongChang Zhang, Li Jiangxi Vocat Coll Mech & Elect Technol Nanchang 330006 Jiangxi Peoples R China

ISBN: (数字)9781510652118

ISBN: (纸本)9781510652118;9781510652101

the application of computer technology in e-commerce not only drives the innovative development of computer technology itself, but also promotes the digital process of e-commerce, and promotes the innovation and development of computer technology in China to a certain extent. The most important part of computer technology is software technology. Computer software technology includes database technology, operating system technology, algorithm technology and data structure, information security technology, software programming technology, software testing technology and so on. Software programming technology in e-commerce is mainly to install software programs, system management and program writing. This paper mainly analyzes the specific application of algorithm, data structure and software engineering in e-commerce.

关键词： Computer technology statistical algorithm Electronic Commerce Application

来源：评论

学校读者我要写书评

暂无评论

Research on software reliability prediction method based on polynomial regression model 3

Research on software reliability prediction method based on ...

引用

3rd International Conference on Electronics and Communication;Network and Computer Technology (ECNCT)

作者： Chen, Changyin Hu, Wenli Jiangxi Ind Polytech Coll Nanchang 330095 Jiangxi Peoples R China

ISBN: (数字)9781510652118

ISBN: (纸本)9781510652118;9781510652101

This paper mainly analyzes the fitting and precision of software reliability growth model based on polynomial regression model. Firstly, the software reliability testing workload and software reliability modeling framework are proposed. On this basis, the deformation software workload function and modeling function are introduced into the modeling framework. A new software reliability growth model is established. At the same time, Harry uses the framework to analyze and address the core issues in the modeling process. Based on the software reliability model parameters and two groups of actual effect data, the model framework is used to establish the most suitable growth model. Thus, the reliability of software system is guaranteed, and the integration and development of software and polynomial regression model are further increased.

关键词： Polynomial Model Software Reliability statistical algorithm

来源：评论

学校读者我要写书评

暂无评论

Mathematical statistics algorithm in the bending performance test of corroded reinforced concrete beams under fatigue load

引用

APPLIED MATHEMATICS AND NONLINEAR SCIENCES 2022年第1期7卷 695-702页

作者： Li, Zhengjian Li, Lifeng Jiaozuo Univ Dept Civil & Architectural Engn Jiaozuo 454000 Henan Peoples R China Jiaozuo Univ Sch Foreign Language Jiaozuo 454000 Henan Peoples R China

Harsh environments such as alternating wet and dry conditions and cyclic loading cause erosion in steel bars, leading to severe damage to structures. Steel bars are also prone to bending under long-term fatigue loads. This paper establishes the bending performance test of corroded reinforced concrete (RC) beam under fatigue load based on the mathematical-statistical algorithm. It investigates the influence of heavy load on the fatigue performance of damaged RC beams, the influence of corrosive environment on the fatigue performance of RC beams, the degree of corrosion of steel bars in concrete beams under fatigue loading, and the distribution of chloride ions. The study results found that the stress ratio has a significant effect on the maximum crack width of the specimen beam. The greater is the stress ratio, the longer the fatigue life. This directly affects the performance of the specimen beam under fatigue loading. For this reason, we should pay special attention to the impact of corrosion on the fatigue performance of a structure during the design of steel bars.

关键词： reinforced concrete beam mathematical statistical algorithm fatigue load bending performance

来源：评论

学校读者我要写书评

暂无评论

Research on Tibetan Information Processing Framework Based on statistical Information Retrieval algorithm

Research on Tibetan Information Processing Framework Based o...

引用

2018 8th ESE International Conference on Sports and Social Sciences(ESE-SSS 2018)

作者： Zhuome Renqing Northwest Minzu University

With the rapid development of computer technology and network technology,the number of electronic documents has expanded ***,comprehensively and accurately finding the information and information needed in this vast amount of information has become the focus of attention and has become a hot topic in the research *** a typical example of human language,Tibetan has the common way of thinking and language *** the development of Tibetan information technology,the efforts of many researchers in research institutes,institutions of higher learning and enterprises have achieved fruitful results,which has made Tibetan word processing technology *** the popularity of the Internet and the arrival of the era of big data,the data of Tibetan electronic resources has grown rapidly,and these data have become the cornerstone for the further development of Tibetan information *** present,many achievements have been made in the fields of Tibetan processing and statement processing,but there are still many unresolved problems.

关键词： statistical algorithm Data mining Information retrieval algorithm Data acquisition Tibetan Information processing Framework

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：