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STATISTICS: 作品数：859被引量：6220H指数：17; 导出分析报告; 相关领域：经济管理更多>>; 相关作者：夏勍刘瑞江彭丽娟周莹胡志洁更多>>; 相关机构：清华大学南昌大学广西大学西安交通大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划中国博士后科学基金国家高技术研究发展计划更多>>

Stock Market Prediction Using Generative Adversarial Networks(GANs):Hybrid Intelligent Model: 《Computer Systems Science & Engineering》2023年第10期19-35,共17页Fares Abdulhafidh Dael Omer CagrıYavuz Ugur Yavuz; The key indication of a nation’s economic development and strength is the stock market.Inflation and economic expansion affect the volatility of the stock market.Given the multitude of factors,predicting stock prices...; 关键词：Stock markets STATISTICS machine learning sentiment analysis investment decisions

An object detection method for bayberry trees based on an improved YOLO algorithm被引量：8: 《International Journal of Digital Earth》2023年第1期781-805,共25页Youliang Chen Hanli Xu Xiangjun Zhang Peng Gao Zhigang Xu Xiaobin Huang; supported by the Fujian Science and Technology Program(grant numbers 2021Y0074);the Fujian Science and Technology Innovation Fund(grant numbers 2020SHQM14;XIQM009).; To quickly detect and count the number of bayberry trees,this paper improves the YOLO-v4 model and proposes an optimal YOLO-v4 method for detecting bayberry trees based on UAV images.We used the Leaky_ReLU activation ...; 关键词：Object detection YOLO-v4 deep learning bayberry trees plant number statistics

A Novel Soft Clustering Approach for Gene Expression Data: 《Computer Systems Science & Engineering》2022年第12期871-886,共16页E.Kavitha R.Tamilarasan Arunadevi Baladhandapani M.K.Jayanthi Kannan; Gene expression data represents a condition matrix where each rowrepresents the gene and the column shows the condition. Micro array used todetect gene expression in lab for thousands of gene at a time. Genes encode p...; 关键词：REINFORCEMENT MEMBERSHIP CENTROID threshold STATISTICS BIOINFORMATICS gene expression data

New Probability Distributions in Astrophysics: X. Truncation and Mass-Luminosity Relationship for the Frèchet Distribution: 《International Journal of Astronomy and Astrophysics》2022年第4期347-362,共16页Lorenzo Zaninetti; The Frèchet distribution has aided the modelling of scientific data in many contexts. We demonstrate how it can be adapted to model astrophysical data. We analyze the truncated version of the Frèchet distribution de...; 关键词：Stars: Normal Stars: Luminosity Function Mass Function Stars: Statistics

An adaptive strategy for statistics collecting in distributed database: 《Frontiers of Computer Science》2020年第5期199-211,共13页Jintao Gao Wenjie Liu Zhanhuai Li; This project was supported by Key Research and Development Program(2018YFB1003403);the National Natural Science Foundation of China(Grant Nos.61732014,61672432,61672434);Natural Science Basic Research Plan in Shaanxi Province of China(2017JM6104).; Collecting statistics is a time-and resource-consuming operation in database systems.It is even more challenging to efficiently collect statistics without affecting system performance,meanwhile keeping correctness in ...; 关键词：statistics collecting distributed database adaptive strategy query optimization

Micro-Expression Recognition Algorithm Based on Information Entropy Feature: 《Journal of Shanghai Jiaotong university(Science)》2020年第5期589-599,共11页WU Jin MIN Yu YANG Xiaodie MA Simin; the National Natural Science Foundation of China(Nos.61772417,61634004,and 61602377);the Key R&D Progrm Projects in Shaanxi Province(No.2017GY-060);the Shaanxi Natural Science Basic Research Project(No.018JM4018)。; The intensity of the micro-expression is weak,although the directional low frequency components in the image are preserved by many algorithms,the extracted micro-expression ft^ature information is not sufficient to ac...; 关键词：micro-expression recognition two-dimensional principal component analysis(2DPCA) optical flow information entropy statistics support vector machine(SVM)

An SDN Oriented Loop Detection Mechanism Based on TTL Statistics被引量：2: 《China Communications》2020年第6期1-12,共12页Tao Yu Longfei Yu Diyue Chen Hongyan Cui Jilong Wang; supported by CERNET Innovation Project(NGII20170417);China Ministry of Education-CMCC Research Fund(No.MCM20170306)。; The rise of the network has injected new impetus into the development of traditional networks.Due to the complexity of the network itself and its network programmability,there is a risk of routing loops occurring in t...; 关键词：SDN Loop Detection TTL SFLOW

Predicting the Underlying Structure for Phylogenetic Trees Using Neural Networks and Logistic Regression: 《Open Journal of Statistics》2020年第2期239-251,共13页Hassan W. Kayondo Samuel Mwalili; Understanding an underlying structure for phylogenetic trees is very important as it informs on the methods that should be employed during phylogenetic inference. The methods used under a structured population differ ...; 关键词：Artificial NEURAL Networks LOGISTIC Regression PHYLOGENETIC TREE TREE STATISTICS Classification Clustering

Creeper:a tool for detecting permission creep in file system access controls被引量：1: 《Cybersecurity》2019年第1期239-252,共14页Simon Parkinson Saad Khan James Bray Daiyaan Shreef; This work was undertaken during a project funded by the UK’s Digital Catapult Researcher in Residency Fellowship programme(Grant Ref:EP/M029263/1).The funding supported the research,development,and empirical testing presented in this paper.; Access control mechanisms are widely used in multi-user IT systems where it is necessary to restrict access to computing resources.This is certainly true of file systems whereby information needs to be protected again...; 关键词：Permission creep Access control AUDITING χ^2 statistics

Vascular segmentation of neuroimages based on a prior shape and local statistics: 《Frontiers of Information Technology & Electronic Engineering》2019年第8期1099-1109,共11页Yun TIAN Zi-feng LIU Shi-feng ZHAO; Project supported by the National Natural Science Foundation of China(Nos.61472042 and 61802020);the Beijing Natural Science Foundation,China(No.4174094);the Fundamental Research Funds for the Central Universities,China(No.2015KJJCB25); Fast and accurate extraction of vascular structures from medical images is fundamental for many clinical procedures.However,most of the vessel segmentation techniques ignore the existence of the isolated and redundant...; 关键词：Vesselness filter NEIGHBORHOOD Blood-vessel segmentation OUTLIER

STATISTICS