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融合大小数据分析的用户画像构建 被引量:1
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作者 蔡皎洁 《情报工程》 2022年第1期100-110,共11页
[目的/意义]本文从融合大小数据分析的角度,深入用户偏好形成的内部机理,构建包含因果关系标签的用户画像,提高其在应用中的预测能力。[方法/过程]通过大数据分析获取用户偏好的关联关系,为量表式小数据分析提供理论假设素材并获取用户... [目的/意义]本文从融合大小数据分析的角度,深入用户偏好形成的内部机理,构建包含因果关系标签的用户画像,提高其在应用中的预测能力。[方法/过程]通过大数据分析获取用户偏好的关联关系,为量表式小数据分析提供理论假设素材并获取用户偏好的因果关系,通过语义集成形成完整的用户偏好标签体系。[结果/结论]以互联网股票投资领域进行数据实验,本文所提出的理论框架和方法能够深入用户偏好形成的心理,提高用户画像分类预测的能力。 展开更多
关键词 数据分析 小数据分析 相关关系 因果关系 用户画像
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刍议科技期刊决策需要小数据分析
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作者 段发明 《科技与出版》 CSSCI 北大核心 2023年第5期99-106,共8页
科技期刊决策迫切需要期刊的量化来提供数据支持。文章提出,在大数据时代,小数据分析用“量化自我”弥补大数据挖掘的不足,满足了科技期刊日常决策的需要。小数据分析适用于科技期刊的自我分析,能提供个刊的厚数据,揭示个刊的因果关系,... 科技期刊决策迫切需要期刊的量化来提供数据支持。文章提出,在大数据时代,小数据分析用“量化自我”弥补大数据挖掘的不足,满足了科技期刊日常决策的需要。小数据分析适用于科技期刊的自我分析,能提供个刊的厚数据,揭示个刊的因果关系,善于量化个刊的“无形之物”,为科技期刊挑战大概率事件、发展特色、精细化日常运营等三类主要决策提供数据支持。小数据分析既用抽样统计、全数据统计,以连续数据描述科技期刊的客观现象与过程,也用利克特五点量表法,以离散数据描述科技期刊的主观现象与过程,用贝叶斯统计利用已知估算未知。 展开更多
关键词 科技期刊 小数据分析 量化自我 数据
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科技期刊大数据应用的现状与发展建议 被引量:1
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作者 孙婧 《东南传播》 2021年第10期117-120,共4页
探讨大数据应用发展方向,为国内科技期刊大数据发展提供参考和借鉴。对我国科技期刊大数据相关发展现状的相关文献进行复习。明确大数据的概念及发展必要性,结合国内科技期刊发展现状,分析存在问题,并提出发展方向与着眼点。目前我国科... 探讨大数据应用发展方向,为国内科技期刊大数据发展提供参考和借鉴。对我国科技期刊大数据相关发展现状的相关文献进行复习。明确大数据的概念及发展必要性,结合国内科技期刊发展现状,分析存在问题,并提出发展方向与着眼点。目前我国科技期刊的数字化转型及媒介融合不完全,并且大数据收集的基本条件尚不成熟。科技期刊首先应该转变为大数据思维,并且保持双向在线、加速智能一体化出版流程再造,发展期刊集群化,实现数据共享,并且可以先采用小数据分析指导期刊发展方向。 展开更多
关键词 数据 双向在线 出版流程再造 数据共享 小数据分析
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Establishment and data analysis of sea-state monitoring system along Taiwan coast
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作者 冯向波 王昊 严以新 《Marine Science Bulletin》 2012年第1期42-56,共15页
Taiwan Island is at the joint of Eurasian Continent and Pacific Plate, under threatening of typhoons and northeasterly strong winds. Consequently, enormous human lives and properties are lost every year. It is necessa... Taiwan Island is at the joint of Eurasian Continent and Pacific Plate, under threatening of typhoons and northeasterly strong winds. Consequently, enormous human lives and properties are lost every year. It is necessary to develop a coastal sea-state monitoring system. This paper introduces the coastal sea-state monitoring system (CSMS) along Taiwan coast. The COMC (Coastal Ocean Monitoring Center in National Cheng Kung University) built the Taiwan coastal sea-state monitoring system, which is modern and self-sufficient, consisting of data buoy, pile station, tide station, coastal weather station, and radar monitoring station. To assure the data quality, Data Quality Check Procedure (DQCP) and Standard Operation Procedure (SOP) were developed by the COMC. In further data analysis and data implementation of the observation, this paper also introduces some new methods that make the data with much more promising uses. These methods include empirical mode decomposition (EMD) used for the analysis of storm surge water level, wavelet transform used for the analysis of wave characteristics from nearshore X-band radar images, and data assimilation technique applied in wave nowcast operation. The coastal sea-state monitoring system has a great potential in providing ocean information to serve the society. 展开更多
关键词 coastal sea-state monitoring moored buoy wave monitoring of radar technique EMD wavelet transform data assimilation
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Scale-Dependent Representations of Relief Based on Wavelet Analysis 被引量:4
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作者 WU Fan 《Geo-Spatial Information Science》 2003年第1期66-69,共4页
Automatic generalization of geographic information is the core of multi_scale representation of spatial data,but the scale_dependent generalization methods are far from abundant because of its extreme complicacy.This ... Automatic generalization of geographic information is the core of multi_scale representation of spatial data,but the scale_dependent generalization methods are far from abundant because of its extreme complicacy.This paper puts forward a new consistency model about scale_dependent representations of relief based on wavelet analysis,and discusses the thresholds in the model so as to acquire the continual representations of relief with different details between scales.The model not only meets the need of automatic generalization but also is scale-dependent completely.Some practical examples are given. 展开更多
关键词 multiresolution analysis on wavelet SCALE-DEPENDENCE multi-scale representation DEM automatic generalization
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Approach based on wavelet analysis for detecting and amending anomalies in dataset 被引量:1
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作者 彭小奇 宋彦坡 +1 位作者 唐英 张建智 《Journal of Central South University of Technology》 EI 2006年第5期491-495,共5页
It is difficult to detect the anomalies whose matching relationship among some data attributes is very different from others’ in a dataset. Aiming at this problem, an approach based on wavelet analysis for detecting ... It is difficult to detect the anomalies whose matching relationship among some data attributes is very different from others’ in a dataset. Aiming at this problem, an approach based on wavelet analysis for detecting and amending anomalous samples was proposed. Taking full advantage of wavelet analysis’ properties of multi-resolution and local analysis, this approach is able to detect and amend anomalous samples effectively. To realize the rapid numeric computation of wavelet translation for a discrete sequence, a modified algorithm based on Newton-Cores formula was also proposed. The experimental result shows that the approach is feasible with good result and good practicality. 展开更多
关键词 data preprocessing wavelet analysis anomaly detecting data mining
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A Quantized Kernel Least Mean Square Scheme with Entropy-Guided Learning for Intelligent Data Analysis 被引量:5
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作者 Xiong Luo Jing Deng +3 位作者 Ji Liu Weiping Wang Xiaojuan Ban Jenq-Haur Wang 《China Communications》 SCIE CSCD 2017年第7期127-136,共10页
Quantized kernel least mean square(QKLMS) algorithm is an effective nonlinear adaptive online learning algorithm with good performance in constraining the growth of network size through the use of quantization for inp... Quantized kernel least mean square(QKLMS) algorithm is an effective nonlinear adaptive online learning algorithm with good performance in constraining the growth of network size through the use of quantization for input space. It can serve as a powerful tool to perform complex computing for network service and application. With the purpose of compressing the input to further improve learning performance, this article proposes a novel QKLMS with entropy-guided learning, called EQ-KLMS. Under the consecutive square entropy learning framework, the basic idea of entropy-guided learning technique is to measure the uncertainty of the input vectors used for QKLMS, and delete those data with larger uncertainty, which are insignificant or easy to cause learning errors. Then, the dataset is compressed. Consequently, by using square entropy, the learning performance of proposed EQ-KLMS is improved with high precision and low computational cost. The proposed EQ-KLMS is validated using a weather-related dataset, and the results demonstrate the desirable performance of our scheme. 展开更多
关键词 quantized kernel least mean square (QKLMS) consecutive square entropy data analysis
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Evaluation of Training Program for New Nurses to Enhance Caring Behavior 被引量:1
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作者 Yaowaret Kanmali Arun Suikraduang 《Sociology Study》 2015年第7期584-591,共8页
This research was aimed to evaluate the training program enhancing caring behaviors of new nurses by Kirkpatrick's four level for evaluation model: reaction, learning, behavior, and result of the program. The partic... This research was aimed to evaluate the training program enhancing caring behaviors of new nurses by Kirkpatrick's four level for evaluation model: reaction, learning, behavior, and result of the program. The participants were new nurses, preceptors of new nurses, administrators, patients and members of the patients' family cared by new nurses. The research instruments were: (1) five questionnaires toward program suitability, knowledge, attitude, caring expression, and result to organization. The mean, standard deviation and dependent sample t-test were used for data analysis; (2) guidelines for focus group discussion and semi-structural questionnaire analyzed by content analysis. The study revealed that: (1) the mean of suitability was at the very high level (X = 4.49, SD. = .30); (2) the knowledge and attitude after training were significantly higher than before training at .000 level, [t =-21.65, p = .000 and t = -19.30, p = .000); {3} caring behavior after training was significantly higher than before training at the .000 level; and {4} the result of the program was at the high level { X = 4.25, SD. = .17}, related to the result of semi-structured interview and focus group discussion. These evaluation research finding suggested that administrators can use for improving the preparation of any project and apply to evaluate other training programs, developing human resource system. 展开更多
关键词 Training program evaluation caring behavior new nurse
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Compressing and Coding Method of Seismic Data
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作者 赵学军 郑宇 +2 位作者 宁书年 郭俊霞 岳俊梅 《Journal of China University of Mining and Technology》 2002年第1期95-99,共5页
Aiming at the characteristics of the seismic exploration signals, the paper studies the image coding technology, the coding standard and algorithm, brings forward a new scheme of admixing coding for seismic data compr... Aiming at the characteristics of the seismic exploration signals, the paper studies the image coding technology, the coding standard and algorithm, brings forward a new scheme of admixing coding for seismic data compression. Based on it, a set of seismic data compression software has been developed. 展开更多
关键词 data compression wavelet transform encode IMAGE
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The Influence of Spiritual Values on Work Motivation, Management Control, and Quality of Financial Information on IFIs in Indonesia
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作者 Firman Menne Muhammad Ali +1 位作者 Abd. Hamid Habbe Yohanis Rura 《Journal of Modern Accounting and Auditing》 2016年第11期537-555,共19页
This study aims to investigate the influence of spiritual values on work motivation, management control, and the quality of financial information on Islamic financial institutions (IFIs) in Indonesia. Spiritual valu... This study aims to investigate the influence of spiritual values on work motivation, management control, and the quality of financial information on Islamic financial institutions (IFIs) in Indonesia. Spiritual values are measured using four reflexive indicators, namely, Shiddiq, Fathanah, Amanah, and Tabligh. Work motivation is formed by four formative indicators, namely, compensation, recognition, work experience, and openness. Management control variable is formed by four formative indicators, namely, planning, implementing, evaluating, and monitoring, and finally, the quality of financial information is manifested in four reflexive variables, namely, relevant, comparable, understandable, and consistent. Data are collected through questionnaires with 125 respondents as samples from three types of IFIs, such as Islamic banking, Islamic pawnshop, and Islamic insurance in Indonesia. Methods of data analysis include the use of partial least squares (PLS) to analyze the influence of spiritual values on work motivation, management control, and quality of financial information. The results of this study showed that the manifestation of spiritual values in IFIs is able to influence the quality of financial information through the media as motivation and management control, but directly spiritual values are not able to influence the quality of financial information. While work motivation and management control significantly influence the quality of financial information. 展开更多
关键词 spiritual values work motivation management control quality of financial information
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Matrix Expression of the Orthogonal Wavelet (Packets) Transform
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作者 杜红彬 滕虎 姚平经 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2002年第6期701-705,共5页
Matrix expression of finite orthogonal wavelet transform of finite impulse response signal is more valuable for theoretical analysis and understanding. However, clear deduction for matrix expression has not been provi... Matrix expression of finite orthogonal wavelet transform of finite impulse response signal is more valuable for theoretical analysis and understanding. However, clear deduction for matrix expression has not been provided yet. In this paper, the formulation to generate the re-lated matrix is put forward and the theorem on the orthogonality of this matrix proved. This effort deploys a basis for more deeper and wider applications in chemical processes. * 展开更多
关键词 finite orthogonal wavelet (packets) transform matrix expression finite impulse response signal
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A NEW NON-INVASIVE METHOD FOR VALVE STICTION DECTION USING WAVELET TECHNOLOGY
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作者 Xu Zhanyang Charles Zhan Zhang Shunyi 《Journal of Electronics(China)》 2009年第5期673-680,共8页
In this letter, we present a novel approach of valve stiction detection using wavelet technology. A new non-invasive method is developed with the closed-loop normal operating data. The redundant dyadic discrete wavele... In this letter, we present a novel approach of valve stiction detection using wavelet technology. A new non-invasive method is developed with the closed-loop normal operating data. The redundant dyadic discrete wavelet transform is used to decompose the data at different resolution scales. Based on the Lipschitz regularity theory, wavelet coefficients analysis across scales is performed to detect the jumps in the controlled variables. Adaptive wavelet de-noising is then applied to the data. Features of the valve stiction patterns are extracted from the de-noised data and the valve stiction probability is calculated. 展开更多
关键词 Valve stiction Wavelet de-noising JUMP Features extraction
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Application of wavelet packet in gravity anomaly processing
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作者 ZHANG Hong WU Yangang 《Global Geology》 2012年第2期187-190,共4页
Based on the advantages of the wavelet to separate regional field and local anomalies in MATLAB environment,a high-precision regional-residual separation was finally realized. Analytical continuation and trend surface... Based on the advantages of the wavelet to separate regional field and local anomalies in MATLAB environment,a high-precision regional-residual separation was finally realized. Analytical continuation and trend surface analysis are conventional methods for gravity anomaly separation. But the wavelet packet analysis in analyzing gravity data can make the gravity anomaly to be computed at a higher precision. In this paper,wavelet packet method is used to process gravity anomaly data obtained in Laos,and the separation result is good. Daubechies wavelet series has a higher precision in the wavelet packet. 展开更多
关键词 wavelet packet analysis gravity data local anomalies analytical continuation
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Research on the Model of Linear Data Fitting Method
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作者 Qiang ZHANG 《International Journal of Technology Management》 2015年第3期53-55,共3页
By using the method of least square linear fitting to analyze data do not exist errors under certain conditions, in order to make the linear data fitting method that can more accurately solve the relationship expressi... By using the method of least square linear fitting to analyze data do not exist errors under certain conditions, in order to make the linear data fitting method that can more accurately solve the relationship expression between the volume and quantity in scientific experiments and engineering practice, this article analyzed data error by commonly linear data fitting method, and proposed improved process of the least distance squ^re method based on least squares method. Finally, the paper discussed the advantages and disadvantages through the example analysis of two kinds of linear data fitting method, and given reasonable control conditions for its application. 展开更多
关键词 Data fitting least square method error analysis least distance square method linear correlation
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GRACE’s Implication of Temporal Inertia Moment and Length of Day
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作者 陈巍 申文斌 李振海 《Geo-Spatial Information Science》 2009年第3期225-229,共5页
This paper aims to study the Earth's temporal inertia moment and its influence on length of day (LOD). First, the GRACE data are processed by wavelet analysis to remove abnormal jumps and noises. Then the theoreti... This paper aims to study the Earth's temporal inertia moment and its influence on length of day (LOD). First, the GRACE data are processed by wavelet analysis to remove abnormal jumps and noises. Then the theoretical impacts of the second-order potential coefficients on the inertia moment and LOD are studied. Finally, the processed GRACE data are applied and results show that mass redistribution has led to decreasing tendencies of inertia moment and LOD as well as some unexpected seasonal oscillations in the recent 6 years. 展开更多
关键词 GRACE second-order potential coefficients wavelet analysis Earth's inertia moment variations in LOD
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