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浙江卫视“中国蓝新闻”矩阵号运营的新媒体策略与影响分析
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作者 余元江 《新闻文化建设》 2024年第5期59-61,共3页
本文通过对浙江卫视“中国蓝新闻”矩阵号的运营进行全面剖析,重点关注其新媒体策略与对观众、品牌以及社会的影响。介绍了浙江卫视“中国蓝新闻”矩阵号的情况,探讨了矩阵号的新媒体运营策略,包括平台选择与整合、内容创作与传播以及... 本文通过对浙江卫视“中国蓝新闻”矩阵号的运营进行全面剖析,重点关注其新媒体策略与对观众、品牌以及社会的影响。介绍了浙江卫视“中国蓝新闻”矩阵号的情况,探讨了矩阵号的新媒体运营策略,包括平台选择与整合、内容创作与传播以及对社会热点事件的报道。在影响分析部分,新媒体策略对观众的吸引力、品牌价值、品牌影响以及社会责任与影响进行了评估。 展开更多
关键词 浙江卫视 “中国蓝新闻” 矩阵号 新媒体策略
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南疆地区驻村“第一书记”报道现状分析——以喀什地区“零距离”微信公众号矩阵为例
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作者 嘉梓均 王振强 《声屏花》 2024年第3期0154-0156,共3页
党的二十大报告强调全面推进乡村振兴,早在2015 年中央就发布了《关于做好选派机关优秀干部到村任第一书记工作的通知》。驻村“第一书记”是推进巩固拓展脱贫攻坚成果同乡村振兴有效衔接的重要角色。作为主流媒体的喀什地区“零距离”... 党的二十大报告强调全面推进乡村振兴,早在2015 年中央就发布了《关于做好选派机关优秀干部到村任第一书记工作的通知》。驻村“第一书记”是推进巩固拓展脱贫攻坚成果同乡村振兴有效衔接的重要角色。作为主流媒体的喀什地区“零距离”微信公众号矩阵,对驻村“第一书记”的报道是新疆县级融媒对乡村振兴战略的重要响应。本文的研究旨在为今后喀什地区县域融媒体的建设提供新思路。 展开更多
关键词 驻村“第一书记” “零距离”微信公众矩阵 内容分析 乡村振兴战略
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稳扎稳打,贵在坚持——2021年《档案管理》微信公众号矩阵运营分析
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作者 王进 《办公自动化》 2022年第23期58-61,共4页
[目的]为掌握和了解微信公众号矩阵整体及个组成公众号运营情况,推动矩阵影响力、传播力的提升。[方法]采用数据分析方法,从构成、运营、传播、分析、挑战与建议五方面,着重对传播的整体情况、活跃规律、热门文章、词云图四项进行梳理。... [目的]为掌握和了解微信公众号矩阵整体及个组成公众号运营情况,推动矩阵影响力、传播力的提升。[方法]采用数据分析方法,从构成、运营、传播、分析、挑战与建议五方面,着重对传播的整体情况、活跃规律、热门文章、词云图四项进行梳理。[结果]梳理发现文章内容质量仍需深耕,可深挖社会热点与专业领域结合点;矩阵整体活跃度不足,尾部帐号需增强运维力度;标题吸引力有待提升,适当增强运营轻悦性;可视化元素应用单一,需积极构建富媒体生态;新人参与度有待提升,须借助杂志母体影响力。[结论]唯有稳扎稳打,贵在坚持,方可不断前行。 展开更多
关键词 微信公众矩阵 影响力传播 社会热点 富媒体 运营情况
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抖音带货中种草号矩阵的传播力优化研究 被引量:1
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作者 贾雪楠 《视听》 2020年第12期158-159,共2页
种草带货作为电商销售和网红经济的结合产物,不仅有助于加速电商产业的发展,同时也助长了网红经济的迅速崛起。2018年,快手、抖音平台最先开通专属店铺和"商品橱窗"功能。抖音是目前带货影响和转化效果最具代表性的APP。本文... 种草带货作为电商销售和网红经济的结合产物,不仅有助于加速电商产业的发展,同时也助长了网红经济的迅速崛起。2018年,快手、抖音平台最先开通专属店铺和"商品橱窗"功能。抖音是目前带货影响和转化效果最具代表性的APP。本文分析种草号矩阵带货现象,阐述抖音平台带货的矩阵建构类型,从传播力角度分析种草号矩阵的现存问题,并提出优化策略。 展开更多
关键词 抖音 带货 种草矩阵 传播力
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浅析贵州气象微信公众号矩阵的粉丝管理和用户管理
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作者 罗俊才 王洪波 +1 位作者 冀丹妮 潘岑 《数码设计》 2020年第10期143-143,共1页
十三五期间气象信息化快速发展,气象融媒体发展运用达到了高峰。伴随着新媒体的不断拓展,微信作为一个社交软件也改变了原先固有的服务模式,它将原有的APP特色与功能全部拉入公众号之中,对原有的气象服务模式造成较大的冲击。但是在微... 十三五期间气象信息化快速发展,气象融媒体发展运用达到了高峰。伴随着新媒体的不断拓展,微信作为一个社交软件也改变了原先固有的服务模式,它将原有的APP特色与功能全部拉入公众号之中,对原有的气象服务模式造成较大的冲击。但是在微信公众号在一路高歌猛进之中,也并非是一帆风顺的,伴随着贵州省微信公众号矩阵的日渐庞大,对于粉丝的管理和用户的管理程序也存在着不同程度的问题。本文将就贵州省微信公众号100余万粉丝和九个市州81个县的用户管理过程中存在的问题展开相关调查研究,并寻求相关解决方法。 展开更多
关键词 微信公众矩阵 粉丝管理 用户管理
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图和补图的无号拉普拉斯谱半径之和的2个新上界
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作者 曾春华 衷敬奎 《江西科学》 2019年第1期32-34,共3页
图G=(V,E)为n阶有限图,A和D分别表示图G的邻接矩阵及度矩阵。R=D+A称为图G的无号拉普拉斯矩阵。利用代数方法和微积分中函数极值条件,对图和补图的无号拉普拉斯谱半径之和的上界进行了估计,得出了2个新的上界。
关键词 简单图 补图 拉普拉斯矩阵 谱半径
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具有固定围长的单圈图的无号拉普拉斯谱半径 被引量:1
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作者 冯琳 姚艳红 +1 位作者 郭继明 谭尚旺 《高校应用数学学报(A辑)》 CSCD 北大核心 2011年第1期121-126,共6页
研究了单圈图的无号拉普拉斯谱半径,给出了具有固定围长的单圈图的无号拉普拉斯谱半径最大的图.
关键词 单圈图 拉普拉斯矩阵 拉普拉斯谱半径
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食品类科技期刊微信公众号矩阵的构建策略——以食品类中文核心期刊为例 被引量:18
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作者 闵甜 孙涛 赖富饶 《中国科技期刊研究》 CSSCI 北大核心 2021年第4期480-486,共7页
【目的】以食品类中文核心期刊为例,构建食品类科技期刊微信公众号矩阵,为期刊实现高质量传播和数字化转型提供参考。【方法】通过清博大数据平台和微信公众号后台,运用归纳总结法,对21种食品类中文核心期刊微信公众号的运营现状进行调... 【目的】以食品类中文核心期刊为例,构建食品类科技期刊微信公众号矩阵,为期刊实现高质量传播和数字化转型提供参考。【方法】通过清博大数据平台和微信公众号后台,运用归纳总结法,对21种食品类中文核心期刊微信公众号的运营现状进行调查和梳理,分析存在的问题。【结果】大部分食品类科技期刊的微信公众号存在定位不清、功能设置不完善、缺乏行业交流与衔接、科普内容不足、国际传播力弱等问题,未能很好地发挥公众号在期刊内容和行业信息传播上的优势。【结论】食品类科技期刊可以从学术传播、科研资讯、科普推广、国际交流4个方面建立微信公众号,构建微信公众号矩阵,通过明确定位、精准运营,并策划联动专题,实现公众号之间的差异互补、协同运营,以提升期刊的品牌形象,推动行业发展。 展开更多
关键词 食品科学 科技期刊 微信公众矩阵 构建策略
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文学的叙事和“母题” 被引量:6
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作者 陈力丹 《东南传播》 2016年第9期30-34,共5页
如何讲故事(叙事)和讲什么故事(内容)是文学传播的两个核心问题。尽管故事的结构看似千变万化,但实质上却遵循着相同的结构规则;故事的内容表面上看似纷繁复杂,实际上却可以归纳为有限的"母题"。在某个或某几个母题下,通过对... 如何讲故事(叙事)和讲什么故事(内容)是文学传播的两个核心问题。尽管故事的结构看似千变万化,但实质上却遵循着相同的结构规则;故事的内容表面上看似纷繁复杂,实际上却可以归纳为有限的"母题"。在某个或某几个母题下,通过对不同素材的千变万化的组合、结构元素的改头换面,衍生出无限的故事。 展开更多
关键词 文艺传播 普洛普的叙事理论 矩阵文学叙事 文艺“母题” 寻宝母题 灾变母题 死亡母题 情欲母题 英雄母题 撒旦母题
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笼型电机变极 p_2 为 3 倍数时非正规方案的排列
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作者 程小华 《华南理工大学学报(自然科学版)》 EI CAS CSCD 北大核心 1997年第8期78-82,共5页
论述如何利用槽号相位矩阵来排列交流电机绕组反向法变极p2为3倍数时6根出线的非正规方案,提出切割反向法。
关键词 交流电机绕组 反向法变极 非正规方案 相位矩阵
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Genomic Signal Enhancement by Clustering 被引量:1
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作者 ZHENGWei-Mou 《Communications in Theoretical Physics》 SCIE CAS CSCD 2003年第5期631-634,共4页
Weight matrix models for signal sequence motif are simple. A main limitation of the models is the assumption of independence between positions. Signal enhancement is achieved by taking the total likelihood as the obje... Weight matrix models for signal sequence motif are simple. A main limitation of the models is the assumption of independence between positions. Signal enhancement is achieved by taking the total likelihood as the objective function for maximization to cluster sequences into groups with different patterns. As an example, the initial and terminal signals for translation in rice genome are examined. 展开更多
关键词 genomic signals cluster analysis
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Integrins mediating bone signal transduction
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作者 HEChuanglong WANGYuanliang +1 位作者 YANGLihua ZHANGJun 《Journal of Chongqing University》 CAS 2004年第1期55-60,共6页
Integrin-mediated adhesions play critical roles in diverse cell functions. Integrins offers a platform on which mechanical stimuli, cytoskeletal organization, biochemical signals can concentrate. Mechanical stimuli tr... Integrin-mediated adhesions play critical roles in diverse cell functions. Integrins offers a platform on which mechanical stimuli, cytoskeletal organization, biochemical signals can concentrate. Mechanical stimuli transmitted by integrins influence the cytoskeleton, in turn, the cytoskeleton influences cell adhesion via integrins, then cell adhesion results in a series of signal transduction cascades. In skeleton, integrins also have a key role for bone resoption by osteoclasts and reformation by osteoblasts. In present review, the proteins involved in integrin signal transduction and integrin signal transduction pathways were discussed, mainly on the basic mechanisms of integrin signaling and the roles of integrins in bone signal transduction, which may give insight into new therapeutic agents to all kinds of skeletal diseases and new strategies for bone tissue engineering. 展开更多
关键词 integrin signal transduction bone absoption bone formation
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A Roller Bearing Fault Diagnosis Method Based on Improved LMD and SVM 被引量:3
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作者 程军圣 史美丽 +1 位作者 杨宇 杨丽湘 《Journal of Measurement Science and Instrumentation》 CAS 2011年第1期1-5,共5页
Aiming at the non-stationary feattwes of the roller bearing fault vibration signal, a roller bearing fault diagnosis methtxt based on improved Local Mean Decomposition (LMD) and Support Vector Machine (SVM) is pro... Aiming at the non-stationary feattwes of the roller bearing fault vibration signal, a roller bearing fault diagnosis methtxt based on improved Local Mean Decomposition (LMD) and Support Vector Machine (SVM) is proposed. In this paper, firstly, the wavelet analysis is introduced to the signal decomposition and reconstruction; secondly, the LMD method is used to decompose the recomtnion signal obtained by the wavelet analysis into a ntmaber of Product Ftmctions (PFs) that include main fault characteristics, thus, the initial feattwe vector matrixes could be formed automatically; Thirdly, by applying the Singular Valueition (SVD) techniques to the initial feature vector matrixes, the singular values of the matrixes can be obtained, which can be used as the fault feature vectors of the roller bearing and serve as the input vectors of the SVM classifier; Finally, the recognition results can be obtained from the SVM output. The results of analysis show that the propsed method can be applied to roller beating fault diagnosis effectively. 展开更多
关键词 LMD roller bearing singular value decomposition support vector machine
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A novel shapelet transformation method for classification of multivariate time series with dynamic discriminative subsequence and application in anode current signals 被引量:3
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作者 WAN Xiao-xue CHEN Xiao-fang +2 位作者 GUI Wei-hua YUE Wei-chao XIE Yong-fang 《Journal of Central South University》 SCIE EI CAS CSCD 2020年第1期114-131,共18页
Classification of multi-dimension time series(MTS) plays an important role in knowledge discovery of time series. Many methods for MTS classification have been presented. However, most of these methods did not conside... Classification of multi-dimension time series(MTS) plays an important role in knowledge discovery of time series. Many methods for MTS classification have been presented. However, most of these methods did not consider the kind of MTS whose discriminative subsequence was not restricted to one dimension and dynamic. In order to solve the above problem, a method to extract new features with extended shapelet transformation is proposed in this study. First, key features is extracted to replace k shapelets to calculate distance, which are extracted from candidate shapelets with one class for all dimensions. Second, feature of similarity numbers as a new feature is proposed to enhance the reliability of classification. Third, because of the time-consuming searching and clustering of shapelets, distance matrix is used to reduce the computing complexity. Experiments are carried out on public dataset and the results illustrate the effectiveness of the proposed method. Moreover, anode current signals(ACS) in the aluminum reduction cell are the aforementioned MTS, and the proposed method is successfully applied to the classification of ACS. 展开更多
关键词 anode current signals key features distance matrix feature of similarity numbers shapelet transformation
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A NOVEL APPROACH FOR DOA ESTIMATION IN UNKNOWN CORRELATED NOISE FIELDS 被引量:1
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作者 Zhou Yi Feng Dazheng Liu Jianqiang 《Journal of Electronics(China)》 2006年第1期44-47,共4页
The key of the subspace-based Direction Of Arrival (DOA) estimation lies in the estimation of signal subspace with high quality. In the case of uncorrelated signals while the signals are temporally correlated, a novel... The key of the subspace-based Direction Of Arrival (DOA) estimation lies in the estimation of signal subspace with high quality. In the case of uncorrelated signals while the signals are temporally correlated, a novel approach for the estimation of DOA in unknown correlated noise fields is proposed in this paper. The approach is based on the biorthogonality between a matrix and its Moore-Penrose pseudo inverse, and made no assumption on the spatial covariance matrix of the noise. The approach exploits the structural information of a set of spatio-temporal correlation matrices, and it can give a robust and precise estimation of signal subspace, so a precise estimation of DOA is obtained. Its performances are confirmed by computer simulation results. 展开更多
关键词 Array signal processing Correlated noise Signal subspace Direction Of Arrival (DOA) estimation Spatio-temporal correlation matrices
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Matched Field Localization Based on CS-MUSIC Algorithm 被引量:2
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作者 GUO Shuangle TANG Ruichun +1 位作者 PENG Linhui JI Xiaopeng 《Journal of Ocean University of China》 SCIE CAS 2016年第2期254-260,共7页
The problem caused by shortness or excessiveness of snapshots and by coherent sources in underwater acoustic positioning is considered.A matched field localization algorithm based on CS-MUSIC(Compressive Sensing Multi... The problem caused by shortness or excessiveness of snapshots and by coherent sources in underwater acoustic positioning is considered.A matched field localization algorithm based on CS-MUSIC(Compressive Sensing Multiple Signal Classification) is proposed based on the sparse mathematical model of the underwater positioning.The signal matrix is calculated through the SVD(Singular Value Decomposition) of the observation matrix.The observation matrix in the sparse mathematical model is replaced by the signal matrix,and a new concise sparse mathematical model is obtained,which means not only the scale of the localization problem but also the noise level is reduced;then the new sparse mathematical model is solved by the CS-MUSIC algorithm which is a combination of CS(Compressive Sensing) method and MUSIC(Multiple Signal Classification) method.The algorithm proposed in this paper can overcome effectively the difficulties caused by correlated sources and shortness of snapshots,and it can also reduce the time complexity and noise level of the localization problem by using the SVD of the observation matrix when the number of snapshots is large,which will be proved in this paper. 展开更多
关键词 matched field processing compressed sensing CS MUSIC
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Control characteristics of D + A combined multi-pump controlled system
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作者 姚静 Wang Pei +2 位作者 Cao Xiaoming Zhang Yang Kong Xiangdong 《High Technology Letters》 EI CAS 2018年第3期303-312,共10页
In order to solve the flow mismatch problem between pumping source output and workload demand,a novel configuration of D + A combined multi-pump controlled hydraulic system,similar to a pump-controlled system,is propo... In order to solve the flow mismatch problem between pumping source output and workload demand,a novel configuration of D + A combined multi-pump controlled hydraulic system,similar to a pump-controlled system,is proposed for a large power hydraulic system in this study. This novel configuration consists of several parallel fixed displacement pumps of different sizes and proportional variable displacement pumps,which is controlled by digital signal( on/off) and analog signal respectively( D + A pumps). The system flow is divided into two parts,one is the total flow from fixed displacement pumps,and the other is the rest desired flow supplied by variable displacement pumps to smooth and improve the demand flow. First,basic design principles and evaluation indicators of the proposed system are introduced. Then,a flow state matrix of the binary-coding digital pumps( 1: 2: 4) is obtained to provide the control signals of pumps. Experimental results show that the system output flow tracks well with acceptable flow deviation,though a little lag behind input signal. 展开更多
关键词 multi-pump design principles flow state matrix evaluation indicator energy saving
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AN NMF ALGORITHM FOR BLIND SEPARATION OF CONVOLUTIVE MIXED SOURCE SIGNALS WITH LEAST CORRELATION CONSTRAINS
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作者 Zhang Ye Fang Yong 《Journal of Electronics(China)》 2009年第4期557-563,共7页
Most of the existing algorithms for blind sources separation have a limitation that sources are statistically independent. However, in many practical applications, the source signals are non- negative and mutual stati... Most of the existing algorithms for blind sources separation have a limitation that sources are statistically independent. However, in many practical applications, the source signals are non- negative and mutual statistically dependent signals. When the observations are nonnegative linear combinations of nonnegative sources, the correlation coefficients of the observations are larger than these of source signals. In this letter, a novel Nonnegative Matrix Factorization (NMF) algorithm with least correlated component constraints to blind separation of convolutive mixed sources is proposed. The algorithm relaxes the source independence assumption and has low-complexity algebraic com- putations. Simulation results on blind source separation including real face image data indicate that the sources can be successfully recovered with the algorithm. 展开更多
关键词 Nonnegative matrix factorization Convolutive blind source separation Correlation constrain
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Asymptotic sum rate of MMSE receivers in multi-user distributed antenna systems
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作者 李忻 Zhao Ming +1 位作者 Huang Lianfen Yao Yan 《High Technology Letters》 EI CAS 2010年第2期147-151,共5页
In this paper, the asymptotic sum rate of a multi-user distributed antenna system (DAS) is analyzed. To mitigate inter-user interference, minimum mean squared error (MMSE) receivers are utilized to cooperatively p... In this paper, the asymptotic sum rate of a multi-user distributed antenna system (DAS) is analyzed. To mitigate inter-user interference, minimum mean squared error (MMSE) receivers are utilized to cooperatively process received signals in the uplink. It shows that inter-user interference is efficiently mitigated and the uplink sum rate of a multi-user DAS is greatly improved by adopting MMSE receivers. For very large number of users and remote antennas, the asymptotic uplink sum rate of MMSE receivers is derived by using virtue of the random matrix theory, which can be The approximation is verified to be quite accurate by Monte Carlo simply calculated in an iterative way simulations. 展开更多
关键词 distributed antenna system (DAS) MULTI-USER minimum mean squared error (MMSE) receivers asymptotic sum rate random matrix
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Measurment of gas-liquid two-phase slug flow with a Venturi meter based on blind source separation
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作者 王微微 梁霄 张明柱 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2015年第9期1447-1452,共6页
We propose a novel flow measurement method for gas–liquid two-phase slug flow by using the blind source separation technique. The flow measurement model is established based on the fluctuation characteristics of diff... We propose a novel flow measurement method for gas–liquid two-phase slug flow by using the blind source separation technique. The flow measurement model is established based on the fluctuation characteristics of differential pressure(DP) signals measured from a Venturi meter. It is demonstrated that DP signals of two-phase flow are a linear mixture of DP signals of single phase fluids. The measurement model is a combination of throttle relationship and blind source separation model. In addition, we estimate the mixture matrix using the independent component analysis(ICA) technique. The mixture matrix could be described using the variances of two DP signals acquired from two Venturi meters. The validity of the proposed model was tested in the gas–liquid twophase flow loop facility. Experimental results showed that for most slug flow the relative error is within 10%.We also find that the mixture matrix is beneficial to investigate the flow mechanism of gas–liquid two-phase flow. 展开更多
关键词 Two-phase slug flow Flow measurement Differential pressure Blind source separation Independent component analysis
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