期刊文献+
共找到3,897篇文章
< 1 2 195 >
每页显示 20 50 100
Sentiment Analysis Using E-Commerce Review Keyword-Generated Image with a Hybrid Machine Learning-Based Model
1
作者 Jiawen Li Yuesheng Huang +3 位作者 Yayi Lu Leijun Wang Yongqi Ren Rongjun Chen 《Computers, Materials & Continua》 SCIE EI 2024年第7期1581-1599,共19页
In the context of the accelerated pace of daily life and the development of e-commerce,online shopping is a mainstreamway for consumers to access products and services.To understand their emotional expressions in faci... In the context of the accelerated pace of daily life and the development of e-commerce,online shopping is a mainstreamway for consumers to access products and services.To understand their emotional expressions in facing different shopping experience scenarios,this paper presents a sentiment analysis method that combines the ecommerce reviewkeyword-generated imagewith a hybrid machine learning-basedmodel,inwhich theWord2Vec-TextRank is used to extract keywords that act as the inputs for generating the related images by generative Artificial Intelligence(AI).Subsequently,a hybrid Convolutional Neural Network and Support Vector Machine(CNNSVM)model is applied for sentiment classification of those keyword-generated images.For method validation,the data randomly comprised of 5000 reviews from Amazon have been analyzed.With superior keyword extraction capability,the proposedmethod achieves impressive results on sentiment classification with a remarkable accuracy of up to 97.13%.Such performance demonstrates its advantages by using the text-to-image approach,providing a unique perspective for sentiment analysis in the e-commerce review data compared to the existing works.Thus,the proposed method enhances the reliability and insights of customer feedback surveys,which would also establish a novel direction in similar cases,such as social media monitoring and market trend research. 展开更多
关键词 Sentiment analysis keyword-generated image machine learning word2Vec-TextRank CNN-SVM
下载PDF
A Contrastive Analysis of English and Chinese Idioms About Color Words & Their Cultural Connotations
2
作者 WANG Hong-mei 《Sino-US English Teaching》 2024年第9期439-442,共4页
There are many idioms related to color words in English and Chinese.The use of color words in idioms adds beauty and vividness to the language.Due to the cultural differences,“color idioms”have gained different cult... There are many idioms related to color words in English and Chinese.The use of color words in idioms adds beauty and vividness to the language.Due to the cultural differences,“color idioms”have gained different cultural connotations with the development of English and Chinese languages.It is of great significance to accurately understand and grasp the meanings and differences of color-related idioms in Chinese and English.This paper intends to analyze and expound the cultural connotations of English and Chinese idioms related to several widely used basic color words with the aim of helping English learners know and use the idioms about color words better. 展开更多
关键词 idioms about color words cultural connotation contrastive analysis
下载PDF
Mapping theme trends and knowledge structures for human neural stem cells:a quantitative and co-word biclustering analysis for the 2013-2018 period 被引量:5
3
作者 Wen-Juan Wei Bei Shi +3 位作者 Xin Guan Jing-Yun Ma Ya-Chen Wang Jing Liu 《Neural Regeneration Research》 SCIE CAS CSCD 2019年第10期1823-1832,共10页
Neural stem cells,which are capable of multi-potential differentiation and self-renewal,have recently been shown to have clinical potential for repairing central nervous system tissue damage.However,the theme trends a... Neural stem cells,which are capable of multi-potential differentiation and self-renewal,have recently been shown to have clinical potential for repairing central nervous system tissue damage.However,the theme trends and knowledge structures for human neural stem cells have not yet been studied bibliometrically.In this study,we retrieved 2742 articles from the PubMed database from 2013 to 2018 using "Neural Stem Cells" as the retrieval word.Co-word analysis was conducted to statistically quantify the characteristics and popular themes of human neural stem cell-related studies.Bibliographic data matrices were generated with the Bibliographic Item Co-Occurrence Matrix Builder.We identified 78 high-frequency Medical Subject Heading(MeSH)terms.A visual matrix was built with the repeated bisection method in gCLUTO software.A social network analysis network was generated with Ucinet 6.0 software and GraphPad Prism 5 software.The analyses demonstrated that in the 6-year period,hot topics were clustered into five categories.As suggested by the constructed strategic diagram,studies related to cytology and physiology were well-developed,whereas those related to neural stem cell applications,tissue engineering,metabolism and cell signaling,and neural stem cell pathology and virology remained immature.Neural stem cell therapy for stroke and Parkinson’s disease,the genetics of microRNAs and brain neoplasms,as well as neuroprotective agents,Zika virus,Notch receptor,neural crest and embryonic stem cells were identified as emerging hot spots.These undeveloped themes and popular topics are potential points of focus for new studies on human neural stem cells. 展开更多
关键词 nerve REGENERATION human NEURAL stem cells PubMed bibliometric analysis biclustering analysis co-word analysis strategic diagram analysis social network analysis hot research topics mapping THEME TRENDS knowledge structures NEURAL REGENERATION
下载PDF
The hot issues of studies in China on digital information resources: Based on co-word analysis 被引量:1
4
作者 MA Feicheng WANG Juncheng CHEN Jinxia 《Chinese Journal of Library and Information Science》 2008年第1期14-26,共13页
With the SPSS and the help of factor method and hierarchical clustered method,journal articles on digital information resources(DIR) from CNKI in the past ten years are analyzed with a co-word analytical method in thi... With the SPSS and the help of factor method and hierarchical clustered method,journal articles on digital information resources(DIR) from CNKI in the past ten years are analyzed with a co-word analytical method in this paper. The hot issues of studies on DIR and the relationship between those subjects are analyzed in this investigation as well. 展开更多
关键词 Digital information resources Co-word analysis Factor analysis Clustered analysis
下载PDF
Research status and hotspots of economic evaluation in nursing by co-word clustering analysis
5
作者 Yao-Ji Liao Guo-Zhen Gao 《Frontiers of Nursing》 CAS 2019年第3期233-239,共7页
Objective:The aim of this study is to discover research status and hotspots of economic evaluation(EE)in nursing area using co-word cluster analysis.Methods:Medical Subject Heading(MeSH)term“cost–benefit analysis”w... Objective:The aim of this study is to discover research status and hotspots of economic evaluation(EE)in nursing area using co-word cluster analysis.Methods:Medical Subject Heading(MeSH)term“cost–benefit analysis”was searched in PubMed and nursing journals were limited by the function of filter.The information of author,country,year,journal,and keywords of collected paper was extracted and exported to Bicomb 2.0 system,where high-frequency terms and other data could be further mined.SPSS 19.0 was used for cluster analysis to generate dendrogram.Results:In all,3,020 articles were found and 10,573 MeSH terms were detected;among them,1,909 were MeSH major topics and generated 42 high-frequency terms.The consequence of dendrogram showed seven clusters,representing seven research hotspots:skin administration,infection prevention,education program,nurse education and management,EE research,neoplasm patient,and extension of nurse function.Conclusions:Nursing EE research involved multiple aspects in nursing area,which is an important indicator for decision-making.Although the number of papers is increasing,the quality of study is not promising.Therefore,further study may be required to detect nurses’knowledge of economic analysis method and their attitude to apply it into nursing research.More nursing economics course could carry out in nursing school or hospitals. 展开更多
关键词 cost–benefit analysis co-word clustering analysis ECONOMIC evaluation NURSING NURSING education
下载PDF
Word-formation Analysis of English New Words In Science and Technology
6
作者 李竹 《大观周刊》 2011年第19期169-170,共2页
下载PDF
Cloning and Sequence Analysis of Interleukin 10 (IL-10) Full-length cDNA from Cyprinus carpio L.
7
作者 冯祥汝 陈义龙 +6 位作者 赵晓 王文东 张俊辉 杨振国 孙真 贾生美 卢强 《Agricultural Science & Technology》 CAS 2012年第7期1575-1578,共4页
[Objective] This study aimed to obtain IL-10 (interleukin 10) full-length cDNA of common carp (Cyprinus carpio L.) and conduct the sequence analysis. [Method] The differentially expressed cDNA fragment was obtained by... [Objective] This study aimed to obtain IL-10 (interleukin 10) full-length cDNA of common carp (Cyprinus carpio L.) and conduct the sequence analysis. [Method] The differentially expressed cDNA fragment was obtained by DD-RTPCR (differential display RT-PCR). The cDNA library of peripheral blood leukocytes which were separated from common carp and stimulated by mitogen was screened with a probe labeled with DIG (digoxigenin). The IL-10 full-length cDNA was cloned from 0.8×104 pfu of recombinant phages, and the sequence analysis and homology comparison were carried out. [Result] Sequence analysis indicated that the IL-10 full-length cDNA of common carp was 1 117 bp long, containing a 55 bp 5’-UTR, a 522 bp 3’-UTR, and a 540 bp open reading frame(ORF) encoding 179 amino acids. In addition, there were three mRNA instability motifs (ATTTA) in the 3’-untranslated region. The deduced protein sequence shared typical sequence features of the IL-10 family. Homology comparison indicated that the obtained sequence shared 89.1% homology with the carp IL-10 gene from GenBank. [Conclusion] This study laid foundation for further study of the expression manner, functional characteristic and regulation mechanism of IL-10 in vivo and the interaction mechanism in the inflammatory reaction and immune response. 展开更多
关键词 Common carp Interleukin 10 CLONING Sequence analysis
下载PDF
A study of clinical psychological nursing research hotspots in China and variation trends based on word frequency analysis and visualization analysis 被引量:4
8
作者 Shi-Fan Han Rui-Fang Zhu Jiao Zhao 《Chinese Nursing Research》 CAS 2017年第4期186-191,共6页
Objective: To analyze clinical psychological nursing research hotspots in China and variation trends in order to provide reference points on the current state of development of clinical psychological nursing and futur... Objective: To analyze clinical psychological nursing research hotspots in China and variation trends in order to provide reference points on the current state of development of clinical psychological nursing and future research hotspots.Method: Clinical psychological nursing research literature sourced from Wanfang Data for the three periods of 2007-2009, 2010-2012, and 2013-2015 were selected as the research sample. A bibliographic co-occurrence analysis system(BICOMB software) was used to perform keyword word frequency analysis and generate a keyword co-occurrence matrix. In addition, Ucinet software's Netdraw tool was used to create visualized network diagrams.Results: A total of 27890 articles were retrieved, and word frequency analysis revealed that the highestfrequency keywords consisted of anxiety, depression, the elderly, expectant women, coronary heart disease, diabetes, breast cancer, perioperative period, quality of life, and psychological intervention.Research hotspot analysis revealed that consistent hotspots comprised anxiety, depression, health education, and perioperative period; expectant women became a hotspot during 2010-2012, and quality of life and efficacy became hotspots during 2013-2015.Conclusions: In addition to the care process, clinical psychological nursing research hotspots in China have increasingly included the effectiveness of psychological nursing and impact on patient quality of life. In addition, research hotspots have been influenced by the incidence of illnesses and people's health consciousness. 展开更多
关键词 CLINICAL PSYCHOLOGICAL NURSING word frequency analysis VISUALIZATION analysis Research HOTSPOTS NURSING research literature
下载PDF
Fuzzy-Based Sentiment Analysis System for Analyzing Student Feedback and Satisfaction 被引量:5
9
作者 Yun Wang Fazli Subhan +2 位作者 Shahaboddin Shamshirband Muhammad Zubair Asghar Ikram UllahAmmara Habib 《Computers, Materials & Continua》 SCIE EI 2020年第2期631-655,共25页
The feedback collection and analysis has remained an important subject matter for long.The traditional techniques for student feedback analysis are based on questionnaire-based data collection and analysis.However,the... The feedback collection and analysis has remained an important subject matter for long.The traditional techniques for student feedback analysis are based on questionnaire-based data collection and analysis.However,the student expresses their feedback opinions on online social media sites,which need to be analyzed.This study aims at the development of fuzzy-based sentiment analysis system for analyzing student feedback and satisfaction by assigning proper sentiment score to opinion words and polarity shifters present in the input reviews.Our technique computes the sentiment score of student feedback reviews and then applies a fuzzy-logic module to analyze and quantify student’s satisfaction at the fine-grained level.The experimental results reveal that the proposed work has outperformed the baseline studies as well as state-of-the-art machine learning classifiers. 展开更多
关键词 Student feedback analysis sentiments opinion words polarity shifters lexicon-based
下载PDF
Integrated use of GIS, remote sensing and multi-criteria decision analysis to assess ecological land suitability in multi-functional forestry 被引量:5
10
作者 Naser Ahmadi Sani Sasan Babaie Kafaky +1 位作者 Timo Pukkala Asadollah Mataji 《Journal of Forestry Research》 SCIE CAS CSCD 2016年第5期1127-1135,共9页
The Zagros forests are a treasure of valuable oak forests, but they have been severely degraded from long-term misuse. Geographic information systems (GIS) and multi-criteria decision analysis (MCDA) have been inc... The Zagros forests are a treasure of valuable oak forests, but they have been severely degraded from long-term misuse. Geographic information systems (GIS) and multi-criteria decision analysis (MCDA) have been increasingly used to improve the management of vulnerable ecosystems to prevent further degradation and increase the sustainability of land use. This study presents a methodology to assess land suitability using remote sensing (RS) to obtain wall-to-wall data for the calculations, GIS to analyze the data, and MCDA to rank alternative land uses. The criteria and subcriteria affecting the suitability of land for different uses were identified and weighted using an analytic hierarchy process. Variables used as subcriteria were assessed using satellite data and other sources of information such as existing maps and field surveys. Numerical values for the subcriteria were classified, and each class was given a priority rating according to expert judgments. Based on the ratings and weights of the subcriteria, a priority map was created for each land use using the weighted linear combination method. The priority maps for different land uses were overlaid to obtain a preliminary land use map, which often indicated several simultaneous land uses for the same location. The preliminary map was further edited by removing unrealistic, mutually exclusive land-use combinations. The study tested and demonstrated the potential of integrating RS, G1S and MCDA techniques for solving complicated land allocation problems in forested regions using a scientifically sound and practical approach for efficient and sustainable allocation of forestland for different uses. 展开更多
关键词 Analytic hierarchy process Decisionanalysis Ecological suitability Land allocation Land-use planning - Spatial analysis - Zagros forests
下载PDF
Symplectic analysis for elastic wave propagation in two-dimensional cellular structures 被引量:5
11
作者 Xiu-Hui Hou Zi-Chen Deng +1 位作者 Jia-Xi Zhou Tie-Quan Liu 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2010年第5期711-720,共10页
On the basis of the finite element analysis, the elastic wave propagation in cellular structures is investigated using the symplectic algorithm. The variation principle is first applied to obtain the dual variables an... On the basis of the finite element analysis, the elastic wave propagation in cellular structures is investigated using the symplectic algorithm. The variation principle is first applied to obtain the dual variables and the wave propagation problem is then transformed into two-dimensional (2D) symplectic eigenvalue problems, where the extended Wittrick-Williams algorithm is used to ensure that no phase propagation eigenvalues are missed during computation. Three typical cellular structures, square, triangle and hexagon, are introduced to illustrate the unique feature of the symplectic algorithm in higher-frequency calculation, which is due to the conserved properties of the structure-preserving symplectic algorithm. On the basis of the dispersion relations and phase constant surface analysis, the band structure is shown to be insensitive to the material type at lower frequencies, however, much more related at higher frequencies. This paper also demonstrates how the boundary conditions adopted in the finite element modeling process and the structures' configurations affect the band structures. The hexagonal cells are demonstrated to be more efficient for sound insulation at higher frequencies, while the triangular cells are preferred at lower frequencies. No complete band gaps are observed for the square cells with fixed-end boundary conditions. The analysis of phase constant surfaces guides the design of 2D cellular structures where waves at certain frequencies do not propagate in specified directions. The findings from the present study will provide invaluable guidelines for the future application of cellular structures in sound insulation. 展开更多
关键词 Cellular structures Symplectic analysis Dispersion relation - Phase constant surface Sound insulation
下载PDF
Shenqi Fuzheng injection combined with GP chemotherapy in the treatment of advanced non-small cell lung cancer: a meta-analysis 被引量:13
12
作者 Qiang Zhang Yi-Huan Fan +2 位作者 Teng Zhang Xiao-Lan Qin Ji-Fang Song 《TMR Integrative Medicine》 2017年第2期68-78,共11页
Objective: To evaluate the clinical efficacy of Shenqi Fuzheng injection combined with gemcitabine plus cisplatin(GP) in the treatment of advanced non-small cell lung cancer (NSCLC). Methods: we performed a syst... Objective: To evaluate the clinical efficacy of Shenqi Fuzheng injection combined with gemcitabine plus cisplatin(GP) in the treatment of advanced non-small cell lung cancer (NSCLC). Methods: we performed a systematicsearch in the electronic databases such as Cochrane Library, Pubmed, Embase, Chinese Journal Full-text Database,Chinese Biomedical Literature Database, Chinese Science and Technology Periodical Full-text Database andWanfang Database up to 30 January 2017. Randomized controlled trials (RCT) of Shenqi Fuzheng Injectioncombined with GP chemotherapy in the treatment of advanced NSCLC were searched, and all the RCTs wereconducted on methodological quality assessment. Data extraction and data analysis were according to standards ofCochrane systematic review. Results: Eight trials were included including a total of 701 patients. Meta-analysisresults: Shenqi Fuzheng injection combined with GP chemotherapy could significantly improve the functionalstatus of patients with NSCLC (OR = 3.44, 95% CI [2.26, 5.25], P 〈 0.0001) and clinical treatment efficacy (OR =(OR = 0.31, 95%CI [0.20, 0.47], P 〈 0.0001. The rate of leukopenia (OR = .31, 95%CI [0.20,0.47], P 〈 0.0001),thrombocytopenia (OR = 0.58, 95%CI [0.37, 0.91], P = 0.020), hemoglobin decline ((OR = 0.31, 95%CI [0.16,0.59], P = 0.0004) and incidence of gastrointestinal reactions (OR = 0.58,P 〈 0.05) could be reduced. Conclusion:Shenqi Fuzheng injection combined with GP chemotherapy in the treatment of advanced NSCLC obtainedsignificantly clinical efficacy. The quality of the literature incorporated is low, the conclusion requires high-qualityresearch to further prove. 展开更多
关键词 Shenqi Fuzheng GP chemotherapy Advanced non - small cell lung cancer Meta analysis
下载PDF
Algebraic Solution for the Forward Displacement Analysis of the General 6-6 Stewart Mechanism 被引量:8
13
作者 WEI Feng WEI Shimin +1 位作者 ZHANG Ying LIAO Qizheng 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2016年第1期56-62,共7页
The solution for the forward displacement analysis(FDA) of the general 6-6 Stewart mechanism(i.e., the connection points of the moving and fixed platforms are not restricted to lying in a plane) has been extensive... The solution for the forward displacement analysis(FDA) of the general 6-6 Stewart mechanism(i.e., the connection points of the moving and fixed platforms are not restricted to lying in a plane) has been extensively studied, but the efficiency of the solution remains to be effectively addressed. To this end, an algebraic elimination method is proposed for the FDA of the general 6-6 Stewart mechanism. The kinematic constraint equations are built using conformal geometric algebra(CGA). The kinematic constraint equations are transformed by a substitution of variables into seven equations with seven unknown variables. According to the characteristic of anti-symmetric matrices, the aforementioned seven equations can be further transformed into seven equations with four unknown variables by a substitution of variables using the Grobner basis. Its elimination weight is increased through changing the degree of one variable, and sixteen equations with four unknown variables can be obtained using the Grobner basis. A 40th-degree univariate polynomial equation is derived by constructing a relatively small-sized 9 × 9 Sylvester resultant matrix. Finally, two numerical examples are employed to verify the proposed method. The results indicate that the proposed method can effectively improve the efficiency of solution and reduce the computational burden because of the small-sized resultant matrix. 展开更多
关键词 general 6-6 Stewart mechanism forward displacement analysis (FDA) conformal geometric algebra (CGA) Gr6bner basis Sylvester resultant
下载PDF
Expression Analysis of 14-3-3 Gene in Tall Fescue under Several Abiotic Stresses 被引量:1
14
作者 李小冬 于二汝 +2 位作者 舒健虹 吴佳海 王小利 《Agricultural Science & Technology》 CAS 2015年第10期2207-2213,共7页
To study the functions of 14-3-3 gene family in tall fescue, the potential functions of 13 14-3-3 proteins in Arabidopsis were investigated by bioinformatic analysis. Based on the sequences of 14-3-3 genes in tall fes... To study the functions of 14-3-3 gene family in tall fescue, the potential functions of 13 14-3-3 proteins in Arabidopsis were investigated by bioinformatic analysis. Based on the sequences of 14-3-3 genes in tall fescue by transcriptome and proteomic sequencing, the full-length cDNA sequences of 4 14-3-3 genes in tall fescue were obtained. Their sequences were aligned by Clustal W2. The results showed that the genetic relationships between 14-3-3A and 14-3-3D, 14-3-3B and 14-3-3C are closer, and their main structures are very conservative. The changes in expression levels of 14-3-3 genes under low nitrogen, drought, high temperature and high salt stresses were investigated by fluorescence quantitative PCR. The expres- sion level of 14-3-3A makes responses to low nitrogen, drought, high temperature and high salt stresses; the expression levels of other genes also make responses to abiotic stresses in varying degrees, but the relevant response mechanisms are not exactly the same. Therefore, it is speculated that the 14-3-3 gene family regu- lates stress resistance of plants through different pathways, and functional differenti- ation occurs during its evolution. 展开更多
关键词 Tall fescue 14-3-3 gene CLONING Expression analysis
下载PDF
Numerical Analysis of the Adhesive Forces in Nano-Scale Structure 被引量:1
15
作者 Young-Sam Cho Houkseop Han Wan-Doo Kim 《Journal of Bionic Engineering》 SCIE EI CSCD 2006年第4期209-216,共8页
Nanohairs, which can be found on the epidermis of Tokay gecko's toes, contribute to the adhesion by means of van der Waals force, capillary force, etc. This structure has inspired many researchers to fabricate the at... Nanohairs, which can be found on the epidermis of Tokay gecko's toes, contribute to the adhesion by means of van der Waals force, capillary force, etc. This structure has inspired many researchers to fabricate the attachable nano-scale structures. However, the efficiency of artificial nano-scale structures is not reliable sufficiently. Moreover, the mechanical parameters related to the nano-hair attachment are not yet revealed qualitatively. The mechanical parameters which have influence on the ability of adhesive nano-hairs were investigated through numerical simulation in which only van der Waals force was considered. For the numerical analysis, finite element method was utilized and van der Waals force, assumed as 12-6 Lennard-Jones potential, was implemented as the body force term in the finite element formulation. 展开更多
关键词 NUMERICAL analysis adhesive force nano-scale structure finite element model van der Waals force 12-6 L-J potential
下载PDF
Quantum Particle Swarm Optimization with Deep Learning-Based Arabic Tweets Sentiment Analysis
16
作者 Badriyya BAl-onazi Abdulkhaleq Q.A.Hassan +5 位作者 Mohamed K.Nour Mesfer Al Duhayyim Abdullah Mohamed Amgad Atta Abdelmageed Ishfaq Yaseen Gouse Pasha Mohammed 《Computers, Materials & Continua》 SCIE EI 2023年第5期2575-2591,共17页
Sentiment Analysis(SA),a Machine Learning(ML)technique,is often applied in the literature.The SA technique is specifically applied to the data collected from social media sites.The research studies conducted earlier u... Sentiment Analysis(SA),a Machine Learning(ML)technique,is often applied in the literature.The SA technique is specifically applied to the data collected from social media sites.The research studies conducted earlier upon the SA of the tweets were mostly aimed at automating the feature extraction process.In this background,the current study introduces a novel method called Quantum Particle Swarm Optimization with Deep Learning-Based Sentiment Analysis on Arabic Tweets(QPSODL-SAAT).The presented QPSODL-SAAT model determines and classifies the sentiments of the tweets written in Arabic.Initially,the data pre-processing is performed to convert the raw tweets into a useful format.Then,the word2vec model is applied to generate the feature vectors.The Bidirectional Gated Recurrent Unit(BiGRU)classifier is utilized to identify and classify the sentiments.Finally,the QPSO algorithm is exploited for the optimal finetuning of the hyperparameters involved in the BiGRU model.The proposed QPSODL-SAAT model was experimentally validated using the standard datasets.An extensive comparative analysis was conducted,and the proposed model achieved a maximum accuracy of 98.35%.The outcomes confirmed the supremacy of the proposed QPSODL-SAAT model over the rest of the approaches,such as the Surface Features(SF),Generic Embeddings(GE),Arabic Sentiment Embeddings constructed using the Hybrid(ASEH)model and the Bidirectional Encoder Representations from Transformers(BERT)model. 展开更多
关键词 Sentiment analysis Arabic tweets quantum particle swarm optimization deep learning word embedding
下载PDF
XGBRS Framework Integrated with Word2Vec Sentiment Analysis for Augmented Drug Recommendation
17
作者 Shweta Paliwal Amit Kumar Mishra +2 位作者 Ram Krishn Mishra Nishad Nawaz M.Senthilkumar 《Computers, Materials & Continua》 SCIE EI 2022年第9期5345-5362,共18页
Machine Learning is revolutionizing the era day by day and the scope is no more limited to computer science as the advancements are evident in the field of healthcare.Disease diagnosis,personalized medicine,and Recomm... Machine Learning is revolutionizing the era day by day and the scope is no more limited to computer science as the advancements are evident in the field of healthcare.Disease diagnosis,personalized medicine,and Recommendation system(RS)are among the promising applications that are using Machine Learning(ML)at a higher level.A recommendation system helps inefficient decision-making and suggests personalized recommendations accordingly.Today people share their experiences through reviews and hence designing of recommendation system based on users’sentiments is a challenge.The recommendation system has gained significant attention in different fields but considering healthcare,little is being done from the perspective of drugs,disease,and medical recommendations.This study is engrossed in designing a recommendation system that is based on the fusion of sentiment analysis and radiant boosting.The polarity of the sentiments is analyzed through user reviews and the processed data is fed into the Extreme Gradient Boosting(XGBOOST)framework to generate the drug recommendation.To establish the applicability of the concept a comparative study is performed between the proposed approach and the existing approaches. 展开更多
关键词 Recommendation system word2Vec XGBOOST sentiment analysis natural language processing(NLP) machine learning
下载PDF
Novel Method to Deal with Interval Quadratic Equations via Sign-Variation Analysis
18
作者 Nicolas Yvain Isaac Elishakoff 《Journal of Applied Mathematics and Physics》 2023年第10期3212-3250,共39页
In this article, analytical results are obtained apparently for the first time in the literature, for the lower and upper bounds of the roots of quadratic equations when two or all three coefficients a, b, c constitut... In this article, analytical results are obtained apparently for the first time in the literature, for the lower and upper bounds of the roots of quadratic equations when two or all three coefficients a, b, c constitute an interval, with a method called the sign-variation analysis. The results are compared with the parametrization technique offered by Elishakoff and Miglis, and with the solution yielded by minimization and maximization commands of the Maple software. Solutions for some interval word problems are also provided to edulcorate the methodology. This article only focuses on the real roots of those quadratic equations, complex solutions being beyond this investigation. 展开更多
关键词 Analytical Results Quadratic Equations BOUNDS Sign-Variation analysis Interval word Problems
下载PDF
Function Words Analysis——A Reading Comprehension Aid for Chinese Engineers
19
作者 Wu Shuoping and Liu Lian(The Second Academy, MAS) 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 1990年第1期86-90,共5页
Background Generally speaking. Chinese college graduates in the fifties and sixties took Russian as their second language, and those who graduated in the seventies had no second language to speak of. Now, in the years... Background Generally speaking. Chinese college graduates in the fifties and sixties took Russian as their second language, and those who graduated in the seventies had no second language to speak of. Now, in the years of our Open Door Policy, they find they have to learn some English and learn it quickly. They try to learn from radio and TV and many take English courses of 4 to 6 months, with varying degree of success. Their chief stumbling blocks 展开更多
关键词 Function words analysis A Reading Comprehension Aid for Chinese Engineers
下载PDF
Multiple Regression Analysis of Influencing Factors on Yield of New Sugarcane Variety Yuetang 03-373
20
作者 Fangyin PAN Fuye LIU +1 位作者 Mingfu WEN Qingwen LUO 《Asian Agricultural Research》 2020年第5期47-49,共3页
[Objectives]The purpose of this study was to provide reference for cultivation and promotion of a new sugarcane variety Yuetang 03-373,on the basis of analyzing and summarizing the characters of the variety.[Methods]C... [Objectives]The purpose of this study was to provide reference for cultivation and promotion of a new sugarcane variety Yuetang 03-373,on the basis of analyzing and summarizing the characters of the variety.[Methods]Correlation,multiple regression and path analyses were performed for the yield and yield components of Yuetang 03-373.[Results]Correlation analysis shows that cane yield was significantly correlated with millable stalk number,stalk length and stalk diameter,and among them,the correlation with millable stalk number was the strongest.Multiple regression and path analyses show that millable stalk number contributed the most to cane yield,followed by stalk length,and stalk diameter contributed the least.The regression equation of cane yield against the three yield components was y=-2.8713+1.5497x1+5.8990x2-395.4294x3(R=0.9672**).[Conclusions]Millable stalk number and stalk length were the important and major factors for high yield of Yuetang 03-373,indicating that Yuetang 03-373 is a sugarcane variety of millable stalk type.In cultivation,full play should be given to the advantage of Yuetang 03-373 in millable stalk number,as well as stalk length(plant height),in order to achieve the purpose of increasing yield. 展开更多
关键词 Yuetang 03-373 Yield traits Correlation analysis Multiple regression analysis
下载PDF
上一页 1 2 195 下一页 到第
使用帮助 返回顶部