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Spatiotemporal deformation characteristics of Outang landslide and identification of triggering factors using data mining 被引量:1
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作者 Beibei Yang Zhongqiang Liu +1 位作者 Suzanne Lacasse Xin Liang 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2024年第10期4088-4104,共17页
Since the impoundment of Three Gorges Reservoir(TGR)in 2003,numerous slopes have experienced noticeable movement or destabilization owing to reservoir level changes and seasonal rainfall.One case is the Outang landsli... Since the impoundment of Three Gorges Reservoir(TGR)in 2003,numerous slopes have experienced noticeable movement or destabilization owing to reservoir level changes and seasonal rainfall.One case is the Outang landslide,a large-scale and active landslide,on the south bank of the Yangtze River.The latest monitoring data and site investigations available are analyzed to establish spatial and temporal landslide deformation characteristics.Data mining technology,including the two-step clustering and Apriori algorithm,is then used to identify the dominant triggers of landslide movement.In the data mining process,the two-step clustering method clusters the candidate triggers and displacement rate into several groups,and the Apriori algorithm generates correlation criteria for the cause-and-effect.The analysis considers multiple locations of the landslide and incorporates two types of time scales:longterm deformation on a monthly basis and short-term deformation on a daily basis.This analysis shows that the deformations of the Outang landslide are driven by both rainfall and reservoir water while its deformation varies spatiotemporally mainly due to the difference in local responses to hydrological factors.The data mining results reveal different dominant triggering factors depending on the monitoring frequency:the monthly and bi-monthly cumulative rainfall control the monthly deformation,and the 10-d cumulative rainfall and the 5-d cumulative drop of water level in the reservoir dominate the daily deformation of the landslide.It is concluded that the spatiotemporal deformation pattern and data mining rules associated with precipitation and reservoir water level have the potential to be broadly implemented for improving landslide prevention and control in the dam reservoirs and other landslideprone areas. 展开更多
关键词 LANDSLIDE Deformation characteristics Triggering factor data mining Three gorges reservoir
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A Quarterly High RFM Mining Algorithm for Big Data Management
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作者 Cuiwei Peng Jiahui Chen +1 位作者 Shicheng Wan Guotao Xu 《Computers, Materials & Continua》 SCIE EI 2024年第9期4341-4360,共20页
In today’s highly competitive retail industry,offline stores face increasing pressure on profitability.They hope to improve their ability in shelf management with the help of big data technology.For this,on-shelf ava... In today’s highly competitive retail industry,offline stores face increasing pressure on profitability.They hope to improve their ability in shelf management with the help of big data technology.For this,on-shelf availability is an essential indicator of shelf data management and closely relates to customer purchase behavior.RFM(recency,frequency,andmonetary)patternmining is a powerful tool to evaluate the value of customer behavior.However,the existing RFM patternmining algorithms do not consider the quarterly nature of goods,resulting in unreasonable shelf availability and difficulty in profit-making.To solve this problem,we propose a quarterly RFM mining algorithmfor On-shelf products named OS-RFM.Our algorithmmines the high recency,high frequency,and high monetary patterns and considers the period of the on-shelf goods in quarterly units.We conducted experiments using two real datasets for numerical and graphical analysis to prove the algorithm’s effectiveness.Compared with the state-of-the-art RFM mining algorithm,our algorithm can identify more patterns and performs well in terms of precision,recall,and F1-score,with the recall rate nearing 100%.Also,the novel algorithm operates with significantly shorter running times and more stable memory usage than existing mining algorithms.Additionally,we analyze the sales trends of products in different quarters and seasonal variations.The analysis assists businesses in maintaining reasonable on-shelf availability and achieving greater profitability. 展开更多
关键词 data mining recency pattern high-utility itemset RFM pattern mining on-shelf management
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A systematic study of Erzhu Erchen decoction against damp-heat internalized type 2 diabetes based on data mining and experimental verification
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作者 Peng-Yu Wang Jian-Fen Shen +4 位作者 Shuo Zhang Qing Lan Guan-Di Ma Tong Wang You-Zhi Zhang 《Traditional Medicine Research》 2024年第2期27-41,共15页
Background:Erzhu Erchen decoction(EZECD),which is based on Erchen decoction and enhanced with Atractylodes lancea and Atractylodes macrocephala,is widely used for the treatment of dampness and heat(The clinical manife... Background:Erzhu Erchen decoction(EZECD),which is based on Erchen decoction and enhanced with Atractylodes lancea and Atractylodes macrocephala,is widely used for the treatment of dampness and heat(The clinical manifestations of Western medicine include thirst,inability to drink more,diarrhea,yellow urine,red tongue,et al.)internalized disease.Nevertheless,the mechanism of EZECD on damp-heat internalized Type 2 diabetes(T2D)remains unknown.We employed data mining,pharmacology databases and experimental verification to study how EZECD treats damp-heat internalized T2D.Methods:The main compounds or genes of EZECD and damp-heat internalized T2D were obtained from the pharmacology databases.Succeeding,the overlapped targets of EZECD and damp-heat internalized T2D were performed by the Gene Ontology,kyoto encyclopedia of genes and genomes analysis.And the compound-disease targets-pathway network were constructed to obtain the hub compound.Moreover,the hub genes and core related pathways were mined with weighted gene co-expression network analysis based on Gene Expression Omnibus database,the capability of hub compound and genes was valid in AutoDock 1.5.7.Furthermore,and violin plot and gene set enrichment analysis were performed to explore the role of hub genes in damp-heat internalized T2D.Finally,the interactions of hub compound and genes were explored using Comparative Toxicogenomics Database and quantitative polymerase chain reaction.Results:First,herb-compounds-genes-disease network illustrated that the hub compound of EZECD for damp-heat internalized T2D could be quercetin.Consistently,the hub genes were CASP8,CCL2,and AHR according to weighted gene co-expression network analysis.Molecular docking showed that quercetin could bind with the hub genes.Further,gene set enrichment analysis and Gene Ontology represented that CASP8,or CCL2,is negatively involved in insulin secretion response to the TNF or lipopolysaccharide process,and AHR or CCL2 positively regulated lipid and atherosclerosis,and/or including NOD-like receptor signaling pathway,and TNF signaling pathway.Ultimately,the quantitative polymerase chain reaction and western blotting analysis showed that quercetin could down-regulated the mRNA and protein experssion of CASP8,CCL2,and AHR.It was consistent with the results in Comparative Toxicogenomics Database databases.Conclusion:These results demonstrated quercetin could inhibit the expression of CASP8,CCL2,AHR in damp-heat internalized T2D,which improves insulin secretion and inhibits lipid and atherosclerosis,as well as/or including NOD-like receptor signaling pathway,and TNF signaling pathway,suggesting that EZECD may be more effective to treat damp-heat internalized T2D. 展开更多
关键词 data mining damp-heat internalized type 2 diabetes Erzhu Erchen decoction network pharmacology BIOINFORMATICS
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Data Mining Based Research of Development Direction of Waist Protection Equipment
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作者 Lingfeng ZHU Zhizhen LU +3 位作者 Haijie YU Haifen YING Zheming LI Huashan FAN 《Medicinal Plant》 2024年第2期84-90,共7页
[Objectives]To explore the trend of brands towards the design of waist protection products through data mining,and to provide reference for the design concept of the contour of waist protection pillow.[Methods]The str... [Objectives]To explore the trend of brands towards the design of waist protection products through data mining,and to provide reference for the design concept of the contour of waist protection pillow.[Methods]The structural design information of all waist protection equipment was collected from the national Internet platform,and the data were classified and a database was established.IBM SPSS 26.0 and MATLAB 2018a were used to analyze the data and tabulate them in Tableau 2022.4.After the association rules were clarified,the data were imported into Cinema 4D R21 to create the concept contour of waist protection pillow.[Results]The average and standard deviation of the single airbag design were the highest in all groups,with an average of 0.511 and a standard deviation of 0.502.The average and standard deviation of the upper and lower dual airbags were the lowest in all groups,with an average of 0.015 and a standard deviation of 0.120;the correlation coefficient between single airbag and 120°arc stretching was 0.325,which was positively correlated with each other(P<0.01);the correlation coefficient between multiple airbags and 360°encircling fitting was 0.501,which was positively correlated with each other and had the highest correlation degree(P<0.01).[Conclusions]The single airbag design is well recognized by companies,and has received the highest attention among all brand products.While focusing on single airbag design,most brands will consider the need to add 120°arc stretching elements in product design.At the time of focusing on multiple airbag design,some brands believe that 360°encircling fitting elements need to be added to the product,and the correlation between the two is the highest among all groups. 展开更多
关键词 SPINE Low back pain data mining AIRBAG STRETCHING Fitting Steel plate support Bidirectional compression Conceptual contour Design
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Forecasting the Academic Performance by Leveraging Educational Data Mining
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作者 Mozamel M.Saeed 《Intelligent Automation & Soft Computing》 2024年第2期213-231,共19页
The study aims to recognize how efficiently Educational DataMining(EDM)integrates into Artificial Intelligence(AI)to develop skills for predicting students’performance.The study used a survey questionnaire and collec... The study aims to recognize how efficiently Educational DataMining(EDM)integrates into Artificial Intelligence(AI)to develop skills for predicting students’performance.The study used a survey questionnaire and collected data from 300 undergraduate students of Al Neelain University.The first step’s initial population placements were created using Particle Swarm Optimization(PSO).Then,using adaptive feature space search,Educational Grey Wolf Optimization(EGWO)was employed to choose the optimal attribute combination.The second stage uses the SVMclassifier to forecast classification accuracy.Different classifiers were utilized to evaluate the performance of students.According to the results,it was revealed that AI could forecast the final grades of students with an accuracy rate of 97%on the test dataset.Furthermore,the present study showed that successful students could be selected by the Decision Tree model with an efficiency rate of 87.50%and could be categorized as having equal information ratio gain after the semester.While the random forest provided an accuracy of 28%.These findings indicate the higher accuracy rate in the results when these models were implemented on the data set which provides significantly accurate results as compared to a linear regression model with accuracy(12%).The study concluded that the methodology used in this study can prove to be helpful for students and teachers in upgrading academic performance,reducing chances of failure,and taking appropriate steps at the right time to raise the standards of education.The study also motivates academics to assess and discover EDM at several other universities. 展开更多
关键词 Academic achievement AI algorithms CLASSIFIERS data mining deep learning
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Integrated data mining and network pharmacology to discover a novel traditional Chinese medicine prescription against diabetic retinopathy and reveal its mechanism
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作者 Kai-Lun Zhang Xu Wang +7 位作者 Xiang-Wei Chang Jun-Fei Gu Bo-Yang Zhu Shi-Bing Wei Bo Wu Can Peng Jiu-Sheng Nie De-Ling Wu 《TMR Modern Herbal Medicine》 CAS 2024年第2期41-55,共15页
Background:Diabetic retinopathy(DR)is currently the leading cause of blindness in elderly individuals with diabetes.Traditional Chinese medicine(TCM)prescriptions have shown remarkable effectiveness for treating DR.Th... Background:Diabetic retinopathy(DR)is currently the leading cause of blindness in elderly individuals with diabetes.Traditional Chinese medicine(TCM)prescriptions have shown remarkable effectiveness for treating DR.This study aimed to screen a novel TCM prescription against DR from patents and elucidate its medication rule and molecular mechanism using data mining,network pharmacology,molecular docking and molecular dynamics(MD)simulation.Method:TCM prescriptions for treating DR was collected from patents and a novel TCM prescription was identified using data mining.Subsequently,the mechanism of the novel TCM prescription against DR was explored by constructing a network of core TCMs-core active ingredients-core targets-core pathways.Finally,molecular docking and MD simulation were employed to validate the findings from network pharmacology.Result:The TCMs of the collected prescriptions primarily possessed bitter and cold properties with heat-clearing and supplementing effects,attributed to the liver,lung and kidney channels.Notably,a novel TCM prescription for treating DR was identified,composed of Lycii Fructus,Chrysanthemi Flos,Astragali Radix and Angelicae Sinensis Radix.Twenty core active ingredients and ten core targets of the novel TCM prescription for treating DR were screened.Moreover,the novel TCM prescription played a crucial role for treating DR by inhibiting inflammatory response,oxidative stress,retinal pigment epithelium cell apoptosis and retinal neovascularization through various pathways,such as the AGE-RAGE signaling pathway in diabetic complications and the MAPK signaling pathway.Finally,molecular docking and MD simulation demonstrated that almost all core active ingredients exhibited satisfactory binding energies to core targets.Conclusions:This study identified a novel TCM prescription and unveiled its multi-component,multi-target and multi-pathway characteristics for treating DR.These findings provide a scientific basis and novel insights into the development of drugs for DR prevention and treatment. 展开更多
关键词 TCM prescriptions diabetic retinopathy medication rule molecular mechanism data mining network pharmacology molecular docking
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Detection of Knowledge on Social Media Using Data Mining Techniques
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作者 Aseel Abdullah Alolayan Ahmad A. Alhamed 《Open Journal of Applied Sciences》 2024年第2期472-482,共11页
In light of the rapid growth and development of social media, it has become the focus of interest in many different scientific fields. They seek to extract useful information from it, and this is called (knowledge), s... In light of the rapid growth and development of social media, it has become the focus of interest in many different scientific fields. They seek to extract useful information from it, and this is called (knowledge), such as extracting information related to people’s behaviors and interactions to analyze feelings or understand the behavior of users or groups, and many others. This extracted knowledge has a very important role in decision-making, creating and improving marketing objectives and competitive advantage, monitoring events, whether political or economic, and development in all fields. Therefore, to extract this knowledge, we need to analyze the vast amount of data found within social media using the most popular data mining techniques and applications related to social media sites. 展开更多
关键词 data mining KNOWLEDGE data mining Techniques Social Media
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Aviation Safety and Data Mining in Marketing Dimension
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作者 Sevgi Adigüzel Murat Başal Emel Saraç 《Advances in Aerospace Science and Technology》 2024年第3期117-127,共11页
The aviation industry is a sector that is developing, changing and growing every day in terms of technological and legal framework. There are generally three factors that enable airlines to hold on to the market. Thes... The aviation industry is a sector that is developing, changing and growing every day in terms of technological and legal framework. There are generally three factors that enable airlines to hold on to the market. These factors are safety, service quality and price. Airline companies can analyze the customers in the market with a focus on price and quality and develop a business model according to their expectations. For example, business class and economy class passenger expectations are different from each other, so the service and price to be offered to them will be different. However, all customers have one common expectation and that is safety. No matter how high quality the service is or how cheap the price is, no one wants to fly with an airline or plane that is not safe. From an airline company’s point of view, an accident or breakdown of one of the company’s aircraft can cause irreparable image loss and financial damage. If we look at past examples, we see that there are many airline companies or maintenance organizations that could not recover after an accident and went bankrupt. Safety is an indispensable factor. Therefore, there is a unit in the sector called the safety management system (SMS), which collects data by taking a proactive and reactive approach. The way and purpose of the safety management system is to take a proactive approach to recognize and prevent unsafe situations before they cause accidents or breakdowns, or to take a reactive approach to find the causes of accidents and breakdowns that have occurred as a result of certain factors and to take the necessary measures to prevent the same situations from happening again in the sector. The field of data mining, which is necessary to predict the future behavior of customers in the field of marketing, is an area that marketing also values. In this study, data mining studies to ensure safety in the aviation industry and the security of customer information in marketing will be emphasized, firstly, the concept and importance of data mining will be mentioned. 展开更多
关键词 data mining AVIATION CUSTOMER SAFETY MARKETING
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Construction and Practice of Teaching Evaluation System Based on Data Mining
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作者 Yanfang Zong 《Journal of Electronic Research and Application》 2024年第5期141-147,共7页
The teaching quality evaluation system based on data mining technology can accurately and fairly identify the core driving factors to improve teaching quality.This method adopts the analysis of big data correlation ru... The teaching quality evaluation system based on data mining technology can accurately and fairly identify the core driving factors to improve teaching quality.This method adopts the analysis of big data correlation rules,including data collection and processing preparation steps,builds the data warehouse of association rules,and then generates an educational quality evaluation framework using the principle of data mining.Based on this,this paper analyzes the construction design and method of the teaching evaluation system under data mining,hoping to provide help for the improvement of the teaching evaluation system and the improvement of teaching quality. 展开更多
关键词 data mining Teaching evaluation system Correlation rules
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Exploring the medication pattern and mechanism of action of traditional Chinese medicine in treating polycystic ovary syndrome with kidney deficiency and blood stasis based on data mining and network pharmacology
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作者 Li-Jun Zhou Yi-Ling Liu 《Medical Data Mining》 2024年第1期40-52,共13页
Background:Using network pharmacology to explore the potential molecular mechanism of traditional Chinese medicine in treating polycystic ovary syndrome(PCOS)with kidney deficiency and blood stasis syndrome.Method:Col... Background:Using network pharmacology to explore the potential molecular mechanism of traditional Chinese medicine in treating polycystic ovary syndrome(PCOS)with kidney deficiency and blood stasis syndrome.Method:Collect the related literature materials of PCOS with kidney deficiency and blood stasis syndrome treated by traditional Chinese medicine in four databases in recent ten years,extract the information of prescriptions and complete the frequency analysis.Traditional Chinese Medicine Systems Pharmacology Database was used to screen out the effective components.Use Online Mendelian Inheritance in Man and other databases to screen PCOS disease targets.The intersection targets obtained by clustering prescription and PCOS disease targets were submitted to STRING database for protein-protein interaction network analysis,and Gene Ontology(GO)and Kyoto Encyclopedia of Genes and Genomes pathways were analysed by Metascape.Result:There are 155 kinds of traditional Chinese medicines used in the literature.The most commonly utilized ones are Cuscutae Semen,Angelicae Sinensis Radix,and Rehmanniae Radix Praeparata.The results of the cluster analysis indicated that the plants most commonly found throughout the prescription were Leonuri Herba,Lycopi Herba,Dipsaci Radix,etc.GO results show that biological processes include cell reaction to organic nitrogen compounds and cell reaction to nitrogen compounds.The functional display of GO molecule includes cytokine receptor binding,signal receptor regulator activity and so on.Kyoto Encyclopedia of Genes and Genomes results show that the possible mechanisms of action are cancer pathway,an endocrine resistance signal pathway.Conclusion:Through data mining,the cluster prescription for PCOS with kidney deficiency and blood stasis syndrome is Leonuri Herba,Lycopi Herba,Dipsaci Radix,etc.The network pharmacology research of cluster prescription shows that the main drug components for treating PCOS with kidney deficiency and blood stasis syndrome are quercetin,kaempferol,luteolin,tanshinone IIA,etc.,which act on PTGS2,NCOA2,and other targets,and treat PCOS with kidney deficiency and blood stasis syndrome through cancer and endocrine resistance. 展开更多
关键词 polycystic ovary syndrome data mining syndrome of kidney deficiency and blood stasis network pharmacology
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Mobile Data Mining-Based Services on the Base of Mobile Device Management (MDM) System
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作者 Mazin Omar Khairo 《Journal of Signal and Information Processing》 2014年第3期89-96,共8页
Client software on mobile devices that can cause the remote control perform data mining tasks and show production results is significantly added the value for the nomadic users and organizations that need to perform d... Client software on mobile devices that can cause the remote control perform data mining tasks and show production results is significantly added the value for the nomadic users and organizations that need to perform data analysis stored in the repository, far away from the site, where users work, allowing them to generate knowledge regardless of their physical location. This paper presents new data analysis methods and new ways to detect people work location via mobile computing technology. The growing number of applications, content, and data can be accessed from a wide range of devices. It becomes necessary to introduce a centralized mobile device management. MDM is a KDE software package working with enterprise systems using mobile devices. The paper discussed the design system in detail. 展开更多
关键词 data mining Mobile Device MANAGEMENT USER RECOMMENDATION KDE Software PACKAGE
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Research on the modern clinical herbal administration rules in TCM treatment of ovarian cysts based on data mining
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作者 Ya'nan Song Jianpeng Hu +5 位作者 Haiyan Wang Lina Wang Xiaojuan Li Yun Pan Feifei Bu Jian Wang 《Journal of Traditional Chinese Medical Sciences》 2017年第2期222-231,共10页
Objective:To explore the recent 20 years' herbal administration rules in TCM treatments of ovarian cysts (OCs) based on data mining.Methods:A prescription database for ovarian cysts was established by ACCESS 2007.... Objective:To explore the recent 20 years' herbal administration rules in TCM treatments of ovarian cysts (OCs) based on data mining.Methods:A prescription database for ovarian cysts was established by ACCESS 2007.Importing the database into SPSS17.0 and SPSS Modeler14.1.SPSS17.0 was used for descriptive and cluster analyses,while SPSS Modeler14.1 was used for association rules analysis.Results:After screening,363 prescriptions were obtained.The 10 most frequently-used Chinese herbal medicines are Zedoaria (Rhizoma Curcumae),Poria cocos (Poria),Common buried rubber (Rhizoma Sparganii),Red peony root (Radix Paeoniae Rubra),Peach seed (Semen Persicae),Danggui (Radix Angelicae Sinensis),Chinese angelica (Ramulus Cinnamomi),Liquorice root (Radix Glycyrrhizae),Pangolin scales (Squama Manis) and Moutan cortex (Cortex Moutan Radicis);the 5 most common syndromes of OCs are qi stagnation and blood stasis,phlegm and blood stasis,uterine blood stasis,stagnation of liver qi and retention of phlegm and dampness,nearly to 54.26%;In association rules analysis,5 sets of two-herbs association rules were obtained,17 sets of three-herbs association rules were obtained,22 sets of four-herbs association rules were obtained and 4 sets of five-herbs association rules were obtained;By clustering,13 sets of core couplet medicinals were obtained.Conclusion:Medicinal herbs for promoting blood circulation to remove blood stasis,resolve hard lumps,for strengthening the spleen,eliminating phlegm,and relieving liver qi stagnation were highly used in the treatment of OCs;Herbs attributed to the Liver Meridian,the Spleen Meridian and the Heart Meridian were highly used in OCs;The compatibility of herbs for promoting blood circulation to remove blood stasis and resolve hard lumps were highly used;Guizhi Fuling Wan (GFW) was often used and combined with other herbs in the treatment of OCs. 展开更多
关键词 OVARIAN CYSTS data mining Traditional Chinese MEDICINE HERBAL AdmINISTRATION RULES
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Administration Rule of Hyperlipidemic Acute Pancreatitis Based on Data Mining
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作者 GUO Ling-long CHEN Yu-yi +3 位作者 LI Jing-wei JIANG Xiao-yan ZHANG Chun-hong HUANG Bin 《World Journal of Integrated Traditional and Western Medicine》 2022年第2期31-40,共10页
Objective:To excavate the medical pattern of hyperlipidemic acute pancreatitis based on Chinese Medicine Inheritance Assistant Platform software,hope to offer ideas for the treatment of the disease.Methods:Inpatient c... Objective:To excavate the medical pattern of hyperlipidemic acute pancreatitis based on Chinese Medicine Inheritance Assistant Platform software,hope to offer ideas for the treatment of the disease.Methods:Inpatient cases admitted to the Department of Gastroenterology of Shenzhen Hospital of Traditional Chinese Medicine for HLAP from September 2013 to June 2020 were collected,information on evidence patterns and formulations was extracted,an Excel database was established and professional terms were standardized,and data mining methods such as association rules and entropy clustering of complex systems were used to analyze medical patterns.Results:The main symbols of HLAP include abdominal pain,abdominal distinction,vomiting,fever,etc.The common used drags include Immature Orange Fruit,Baical Skullcap Root,Rhubarb and Chinese Thorowax Root,etc.The main drug pairs based on association rule analysis are"Baical Skullcap Root,Immature Orange Fruit","Rhubarb,Immature Orange Fruit","Baical Skullcap Root,Rhubarb,Immature Orange Fruit",etc,and 14 drug core combinations and 7 new formulations were extracted.Conclusion:The main synthesis of HLAP are solid-heat knots in the internal organs and dam-heat in the liver and gallbladder,and the formula is based on Da-chai-hu Decoction,the clinical treatment is based on attacking stagnation,activating blood circulation and removing dampness,which can offer reference for the clinical treatment of the disease. 展开更多
关键词 Hyperlipidemic acute pancreatitis data mining Chinese medicine inheritance assistant platform Medical rules
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Research on Forecast Technologyof Mine Gas Emission Based onFuzzy Data Mining(FDM)
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作者 徐常凯 王耀才 王军威 《Journal of China University of Mining and Technology》 2004年第2期174-178,共5页
The safe production of coalmine can be further improved by forecasting the quantity of gas emission based on the real-time data and historical data which the gas monitoring system has saved. By making use of the advan... The safe production of coalmine can be further improved by forecasting the quantity of gas emission based on the real-time data and historical data which the gas monitoring system has saved. By making use of the advantages of data warehouse and data mining technology for processing large quantity of redundancy data, the method and its application of forecasting mine gas emission quantity based on FDM were studied. The constructing fuzzy resembling relation and clustering analysis were proposed, which the potential relationship inside the gas emission data may be found. The mode finds model and forecast model were presented, and the detailed approach to realize this forecast was also proposed, which have been applied to forecast the gas emission quantity efficiently. 展开更多
关键词 fuzzy data raining (Fdm) gas emission FORECAST
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The Retraining Churn Data Mining Model in DMAIC Phases
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作者 Andrej Trnka 《通讯和计算机(中英文版)》 2013年第8期1063-1069,共7页
关键词 数据挖掘模型 客户流失 培训 六西格玛 贝叶斯网络 水平测量 业务流程 传统企业
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Data mining and well logging interpretation: application to a conglomerate reservoir 被引量:8
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作者 石宁 李洪奇 罗伟平 《Applied Geophysics》 SCIE CSCD 2015年第2期263-272,276,共11页
Data mining is the process of extracting implicit but potentially useful information from incomplete, noisy, and fuzzy data. Data mining offers excellent nonlinear modeling and self-organized learning, and it can play... Data mining is the process of extracting implicit but potentially useful information from incomplete, noisy, and fuzzy data. Data mining offers excellent nonlinear modeling and self-organized learning, and it can play a vital role in the interpretation of well logging data of complex reservoirs. We used data mining to identify the lithologies in a complex reservoir. The reservoir lithologies served as the classification task target and were identified using feature extraction, feature selection, and modeling of data streams. We used independent component analysis to extract information from well curves. We then used the branch-and- bound algorithm to look for the optimal feature subsets and eliminate redundant information. Finally, we used the C5.0 decision-tree algorithm to set up disaggregated models of the well logging curves. The modeling and actual logging data were in good agreement, showing the usefulness of data mining methods in complex reservoirs. 展开更多
关键词 data mining well logging interpretation independent component analysis branch-and-bound algorithm C5.0 decision tree
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基于网络环境的分布式KDD及Data Mining研究 被引量:6
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作者 何炎祥 彭锋 +2 位作者 宋文欣 熊汉卫 陈莘萌 《小型微型计算机系统》 CSCD 北大核心 1999年第10期744-746,共3页
本文针对KDD 的研究现状及其面临的挑战,主要讨论了基于网络环境下,面向多个站点机、多种数据库、多类数据源的分布式KDD 和Data Mining 的整体方案和实验系统模型,研究内容包括高效分布式开采算法,KDD 过程的... 本文针对KDD 的研究现状及其面临的挑战,主要讨论了基于网络环境下,面向多个站点机、多种数据库、多类数据源的分布式KDD 和Data Mining 的整体方案和实验系统模型,研究内容包括高效分布式开采算法,KDD 过程的无缝集成,KDD 中的知识表示。 展开更多
关键词 知识发现 数据开采 知识表示 可视化 数据库系统
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INTERNET INTRUSION DETECTION MODEL BASED ON FUZZY DATA MINING
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作者 陈慧萍 王建东 +1 位作者 叶飞跃 王煜 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2005年第3期247-251,共5页
An intrusion detection (ID) model is proposed based on the fuzzy data mining method. A major difficulty of anomaly ID is that patterns of the normal behavior change with time. In addition, an actual intrusion with a... An intrusion detection (ID) model is proposed based on the fuzzy data mining method. A major difficulty of anomaly ID is that patterns of the normal behavior change with time. In addition, an actual intrusion with a small deviation may match normal patterns. So the intrusion behavior cannot be detected by the detection system.To solve the problem, fuzzy data mining technique is utilized to extract patterns representing the normal behavior of a network. A set of fuzzy association rules mined from the network data are shown as a model of “normal behaviors”. To detect anomalous behaviors, fuzzy association rules are generated from new audit data and the similarity with sets mined from “normal” data is computed. If the similarity values are lower than a threshold value,an alarm is given. Furthermore, genetic algorithms are used to adjust the fuzzy membership functions and to select an appropriate set of features. 展开更多
关键词 intrusion detection data mining fuzzy logic genetic algorithm anomaly detection
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抢先赢得商机的Data Mining──基于数据仓库的数据挖掘技术 被引量:2
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作者 王春梅 王曙燕 《现代电子技术》 2006年第12期98-100,共3页
首先介绍了数据仓库以及在此技术上产生的数据挖掘技术,其次阐述了实现数据挖掘应用的几种工具以及选用工具时应遵循的原则,最后说明了数据挖掘技术现存的问题及他现在重要的商业地位。
关键词 数据仓库(DW) 数据挖掘 联机分析处理(OLAP) 建模
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Algorithms of mining data records from website automatically
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作者 邱勇 兰永杰 《Journal of Southeast University(English Edition)》 EI CAS 2006年第3期423-425,共3页
In order to improve the accuracy and integrality of mining data records from the web, the concepts of isomorphic page and directory page and three algorithms are proposed. An isomorphic web page is a set of web pages ... In order to improve the accuracy and integrality of mining data records from the web, the concepts of isomorphic page and directory page and three algorithms are proposed. An isomorphic web page is a set of web pages that have uniform structure, only differing in main information. A web page which contains many links that link to isomorphic web pages is called a directory page. Algorithm 1 can find directory web pages in a web using adjacent links similar analysis method. It first sorts the link, and then counts the links in each directory. If the count is greater than a given valve then finds the similar sub-page links in the directory and gives the results. A function for an isomorphic web page judgment is also proposed. Algorithm 2 can mine data records from an isomorphic page using a noise information filter. It is based on the fact that the noise information is the same in two isomorphic pages, only the main information is different. Algorithm 3 can mine data records from an entire website using the technology of spider. The experiment shows that the proposed algorithms can mine data records more intactly than the existing algorithms. Mining data records from isomorphic pages is an efficient method. 展开更多
关键词 data mining data record WEBSITE isomorphic page
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