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ANALYSIS ON AGRICULTRUAL INFORMATION DEMAND——Case of Jilin Province 被引量:1
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作者 ZHANG Hui-min JIANG Hui-ming 《Chinese Geographical Science》 SCIE CSCD 2005年第3期281-287,共7页
With the rapid development of agricultural informalization in the world, the demand of agricultural information has been a focus in the international agriculture and information fields. Based on the investigation, thi... With the rapid development of agricultural informalization in the world, the demand of agricultural information has been a focus in the international agriculture and information fields. Based on the investigation, this paper presented the four characteristics of the demand of agricultural information in China, includingregionality, seasonality, great potential demand and variation in kind and level. The factors infuencing the demand of agricultural information were analyzed by the Optimized Less Square (OLS) method. The result shows that, of all factors influcing agricultural information demand, the most important one is economy, the second is facility of information pass, and knowledge and education of user, credit of agricultural information service system and production situation follow. Taking Jilin Province as an example, this article also elaborated the agricultural information demand status, and deduced the regression model of agricultural information demand and verified it by the survey in rural Jilin. 展开更多
关键词 agricultural information demand agricultural information service system Jilin Province
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Current Situation of Information Demand of Farmers in Taihang Mountain Area: A Case Study of Pingshan County in Hebei Province 被引量:2
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作者 Lipeng GUO Haiyan CAI 《Asian Agricultural Research》 2014年第7期22-25,30,共5页
Since the reform and opening-up,economy of mountain areas in China has realized considerable development.However,due to such factors as terrain,traffic,and individual differences,compared with plain and coastal areas,... Since the reform and opening-up,economy of mountain areas in China has realized considerable development.However,due to such factors as terrain,traffic,and individual differences,compared with plain and coastal areas,mountain areas still lag far behind.In recent years,informationization construction of China develops rapidly,but it nearly stagnates in mountain rural areas.Information has become an essential factor restricting economic development of rural areas.Based on the survey of current information demand of farmers carried out in Pingshan County in Hebei Province in 2010,this study came up with relevant recommendations,in order to speed up development of rural economic in mountain areas,narrow the regional gap,improve living condition of farmers in mountain areas,and increase income level of farmers in mountain areas. 展开更多
关键词 Pingshan COUNTY Taihang MOUNTAIN area FARMERS INFO
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Demand-aware mobile bike-sharing service using collaborative computing and information fusion in 5G IoT environment
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作者 Xiaoxian Yang Yueshen Xu +2 位作者 Yishan Zhou Shengli Song Yinchen Wu 《Digital Communications and Networks》 SCIE CSCD 2022年第6期984-994,共11页
Mobile bike-sharing services have been prevalently used in many cities as an important urban commuting service and a promising way to build smart cities,especially in the new era of 5G and Internet-of-Things(IoT)envir... Mobile bike-sharing services have been prevalently used in many cities as an important urban commuting service and a promising way to build smart cities,especially in the new era of 5G and Internet-of-Things(IoT)environments.A mobile bike-sharing service makes commuting convenient for people and imparts new vitality to urban transportation systems.In the real world,the problems of no docks or no bikes at bike-sharing stations often arise because of several inevitable reasons such as the uncertainty of bike usage.In addition to pure manual rebalancing,in several works,attempts were made to predict the demand for bikes.In this paper,we devised a bike-sharing service with highly accurate demand prediction using collaborative computing and information fusion.We combined the information of bike demands at different time periods and the locations between stations and proposed a dynamical clustering algorithm for station clustering.We carefully analyzed and discovered the group of features that impact the demand of bikes,from historical bike-sharing records and 5G IoT environment data.We combined the discovered information and proposed an XGBoost-based regression model to predict the rental and return demand.We performed sufficient experiments on two real-world datasets.The results confirm that compared to some existing methods,our method produces superior prediction results and performance and improves the availability of bike-sharing service in 5G IoT environments. 展开更多
关键词 Mobile bike-sharing service demand prediction Collaborative computing information fusion 5G IoT
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Supply and Demand Information
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《China's Foreign Trade》 2001年第4期35-35,共1页
关键词 NYLON In Supply and demand information WWW THAN
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Supply and Demand Information
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《China's Foreign Trade》 2001年第6期45-45,共1页
关键词 HIGH Supply and demand information
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Analysis and Research on Information Design of the Smart Community Pension Service 被引量:2
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作者 Chen Hao 《学术界》 CSSCI 北大核心 2018年第8期268-280,共13页
In the research on the smart community pension service,it is found that the problems encountered in the promotion of the smart pension can not be solved in the short term because of the lack of information and the acc... In the research on the smart community pension service,it is found that the problems encountered in the promotion of the smart pension can not be solved in the short term because of the lack of information and the acceptance of the intelligent products by the elderly. This paper puts forward the research ideas based on the cognitive characteristics and demand prediction of the specific population. Focusing on the research on the pension needs of people born in the 1960 s or 1970 s,it provides support for the solution of smart pension services in the peak period of aging population in the future. 展开更多
关键词 SMART COMMUNITY PENSION needs COGNITION of the ELDERLY information design demand forecasting
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Risk-taking path choice behaviors under ATIS in transportation networks with demand uncertainty 被引量:2
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作者 Shao, Hu Tian, Qiong +1 位作者 Yuan, Xiaoming Wang, Guodong 《Journal of Southeast University(English Edition)》 EI CAS 2008年第S1期43-48,共6页
A new travel time reliability-based traffic assignment model is proposed to investigate the effects of an advanced transportation information system (ATIS) on drivers' risk-taking path choice behaviours in transpo... A new travel time reliability-based traffic assignment model is proposed to investigate the effects of an advanced transportation information system (ATIS) on drivers' risk-taking path choice behaviours in transportation networks with demand uncertainty. In the model, drivers are divided into two classes. The first class is not equipped with ATIS, while the second class is equipped with ATIS. Different risk-taking path choice behaviours of the two classes are studied, respectively. A corresponding mixed equilibrium traffic assignment model is formulated as a variational inequality problem in terms of path flows, which is solved by a heuristic solution algorithm. Numerical results indicate that the ATIS can influence the drivers' risk-taking path choice behaviours and the total system travel time in transportation networks with demand uncertainty. It is also found that under higher demand levels, the benefits of ATIS for network performance enhancement may be more obvious. 展开更多
关键词 risk-taking path choice behaviours advanced transportation information system (ATIS) demand uncertainty traffic assignment problem variational inequality
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RESEARCH ON VALUE OF INFORMATION SHARING IN ONE SUPPLIER-MULTIPLE RETAILER SUPPLY CHAIN 被引量:2
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作者 ZHUANGPin WANGNing-sheng 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2004年第2期122-127,共6页
Prior research has generally focused on models involving a single or multiple retailers with independent demands. The value of demand information sharing is analyzed in a two-level supply chain involving one supplier-... Prior research has generally focused on models involving a single or multiple retailers with independent demands. The value of demand information sharing is analyzed in a two-level supply chain involving one supplier-multiple retailer model in which retailer demands may be correlated. Each member in the supply chain forecasts its demand using an AR (1) demand process. Two conditions of the information sharing are considered (1) Without the information sharing, the retailers only communicate their orders to the supplier. (2) With the information sharing, retailers communicate their orders and forecasting models to the supplier. Analyses showthat the reductions of supplier's average inventory and average costs are substantial with the information sharing. However, the retailers donot get direct benefit from the information sharing. The retailers may ask the supplier to reduce the replenishment leadtime, so that the retailers will obtain substantial cost savings and inventory reduction. Both partners may obtain benefits when information sharing and leadtime reduction are implemented together. 展开更多
关键词 supply chain information sharing demand forecast leadtime
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A super-network equilibrium optimization method for operation architecture with fuzzy demands 被引量:2
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作者 XING Qinghua GAO Jiale 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2020年第5期969-982,共14页
From the view of information flow, a super-network equilibrium optimization model is proposed to compute the solution of the operation architecture which is made up of a perceptive level, a command level and a firepow... From the view of information flow, a super-network equilibrium optimization model is proposed to compute the solution of the operation architecture which is made up of a perceptive level, a command level and a firepower level. Firstly, the optimized conditions of the perceptive level, command level and firepower level are analyzed respectively based on the demand of information relation,and then the information supply-and-demand equilibrium model of the operation architecture super-network is established. Secondly,a variational inequality transformation(VIT) model for equilibrium optimization of the operation architecture is given. Thirdly, the contraction projection algorithm for solving the operation architecture super-network equilibrium optimization model with fuzzy demands is designed. Finally, numerical examples are given to prove the validity and rationality of the proposed method, and the influence of fuzzy demands on the super-network equilibrium solution of operation architecture is discussed. 展开更多
关键词 super-network equilibrium operation architecture fuzzy demand information flow variational inequality transformation
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Study on individualized information service for the reader in the library based on the network 被引量:1
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作者 唐振宇 李莘 +1 位作者 陈凤岩 冯玉强 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2007年第6期779-783,共5页
With the massive increase of digital resource based on the network,it becomes very important that how to help readers acquire the information needed according to the individualized requirement and interest in an accur... With the massive increase of digital resource based on the network,it becomes very important that how to help readers acquire the information needed according to the individualized requirement and interest in an accurate,convenient and prompt method. Therefore,it is very urgent to investigate individualized information service of library. In this paper,based on the development of the individualized information service for the reader in the college library,the individualized information service is clarified by using three perspectives,including establishment of individualized information demand model,integration of internal and external resource and protection of the reader privacy. Finally,the corresponding strategy and related measure are presented. 展开更多
关键词 Individualized information service demand model of the reader Resource integration Protection of the reader privacy
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Optimization Strategies of Urban Informal Commercial Space under Demand Orientation
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作者 LI Yan LUO Qi 《Journal of Landscape Research》 2022年第6期64-67,共4页
Commercial behavior in towns and cities is mainly divided into formal and informal behavior.Rapid urbanization has enabled formal commerce to develop more and more perfectly in towns,basically meeting the living needs... Commercial behavior in towns and cities is mainly divided into formal and informal behavior.Rapid urbanization has enabled formal commerce to develop more and more perfectly in towns,basically meeting the living needs of residents. However, because of problems such as urban history and management mechanism, informal commercial behavior formed by floating stallholders and other employed people is widespread in towns. Due to the characteristics of instability, flexibility and richness,informal commerce has gradually developed into an important business to attract residents and tourists. In this paper, the general characteristics of informal commercial behavior in towns, the characteristics of the urban public space bearing this kind of commerce, and residents' demand for informal commercial space were summarized, and then the optimization strategies of this kind of public space were put forward to help towns make full use of their scattered space, create diversified commercial places, and add vitality to urban space while providing residents and tourists with daily life needs and convenience. 展开更多
关键词 Informal commercial TOWNS Informal commercial space demand orientation Optimization strategies
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Research on Innovative Model Based on Solving Demand Pain Points in Software Development
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作者 Xianbao Meng Yuehua Xiong 《Journal of Computer Science Research》 2020年第2期37-40,共4页
Software development is an important part of computer technology.only by ensuring the applicability and efficiency of the software can it really improve the efficiency of production and life,and truly inject new power... Software development is an important part of computer technology.only by ensuring the applicability and efficiency of the software can it really improve the efficiency of production and life,and truly inject new power into the economic benefits of the industry.As the theoretical basis of software development,the software development model directly determines the quality of software development.In this paper,starting with information technology as an important tool to improve modern management,it brings out the difficulties and pain points in the analysis of software development needs,and first puts forward the software development innovation model for building a composite core users.It takes core users with compound qualities and capabilities as the main line and guides the entire development process to enable both parties to communicate accurately and solve the pain points of demand communication,function optimization and project control to the greatest extent.Exploring application innovation in the software development model can promote innovation in the software industry. 展开更多
关键词 Software development information management demand pain points Compound capabilities Innovation model
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客户数字化转型与企业非效率投资:协同治理还是嬗变失配 被引量:3
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作者 王娇 王凡林 《审计与经济研究》 CSSCI 北大核心 2024年第4期81-91,共11页
将客户数字化转型行为决策纳入企业非效率投资的研究框架中,利用2007—2019年中国深沪A股上市公司披露的前五大客户数据,检验发现:客户数字化转型对企业非效率投资存在正向溢出效应,并且这种正向溢出主要表现为抑制企业过度投资,该结果... 将客户数字化转型行为决策纳入企业非效率投资的研究框架中,利用2007—2019年中国深沪A股上市公司披露的前五大客户数据,检验发现:客户数字化转型对企业非效率投资存在正向溢出效应,并且这种正向溢出主要表现为抑制企业过度投资,该结果在一系列稳健性检验后依然成立。进一步研究发现,信息协同和高管治理是客户数字化转型改善企业非效率投资的两个作用渠道,从而证实数字溢出存在协同治理效果。此外,当客企关系性质良好、客企数字差距较大、企业融资约束较高时,客户数字化转型对企业非效率投资的改善效果更好。研究结论不仅肯定了客户数字化转型引致的数字溢出能够改善企业非效率投资,为缓解企业间供需矛盾提供了解决思路;而且发现并验证了供应链数字溢出的协同治理效果,加深了各界对供应链数字溢出的学术认知,具有现实意义和理论价值。 展开更多
关键词 供需矛盾 数字溢出 数字化转型 企业社会资本 信息协同 高管治理
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信息安全管理促进企业数字技术创新研究 被引量:1
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作者 王营 吕静 《证券市场导报》 CSSCI 北大核心 2024年第9期59-67,79,共10页
党的二十大报告明确指出,以新安全格局保障新发展格局。数字技术创新已成为全面数字化背景下构建新发展格局的关键路径,本文从企业数字安全防护实践出发,实证检验了信息安全管理对企业数字技术创新的影响。研究发现,信息安全管理促进了... 党的二十大报告明确指出,以新安全格局保障新发展格局。数字技术创新已成为全面数字化背景下构建新发展格局的关键路径,本文从企业数字安全防护实践出发,实证检验了信息安全管理对企业数字技术创新的影响。研究发现,信息安全管理促进了企业数字技术创新,且该促进作用主要源于信息安全管理能够增强企业技术素养需求、增加企业融资机会。进一步地,二者的正向关系并不会随着《网络安全法》的颁布产生异质性,但是对于国有企业以及未设立董事会风险管理委员会的企业,信息安全管理对数字技术创新的促进效果更显著。 展开更多
关键词 信息安全管理 数字技术创新 融资机会 高技能劳动力需求
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基于跨链技术的食品供需网信息共享激励模式构建
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作者 何静 蔡咏琪 宗传宏 《粮油食品科技》 CAS CSCD 北大核心 2024年第6期40-49,共10页
随着食品种类多元化和消费者需求的提升,食品生产流程更加复杂,供应链之间交流越来越多,相关企业、食品供应链和行业机构之间的交互形成了复杂的食品供需网结构。食品供需网成员之间信息共享有利于企业之间充分合作实现长期发展,但仍有... 随着食品种类多元化和消费者需求的提升,食品生产流程更加复杂,供应链之间交流越来越多,相关企业、食品供应链和行业机构之间的交互形成了复杂的食品供需网结构。食品供需网成员之间信息共享有利于企业之间充分合作实现长期发展,但仍有许多企业共享信息意识较弱,无法进行有效信息沟通。区块链跨链技术的应用和发展,为食品供需网信息共享提供了新思路。根据食品供需网复杂性,引入区块链技术和声誉激励机制,将声誉进行量化管理,结合区块链智能合约技术实现声誉激励机制自动化。进一步引入区块链跨链技术,打破不同行业、地区区块链之间的交易壁垒,构建基于区块链跨链技术的食品供需网信息共享声誉激励模式,以猪肉供需网为例阐述跨链信息共享声誉激励流程。该激励模式不仅保障共享信息安全性与准确性,同时保护企业隐私,最大程度保护交易方自身利益,破解信息无法共享的障碍,激发食品供需网企业参与信息共享积极性。不仅实现食品供需网内部异构区块链之间的信息交流和价值互通,还为食品供需网价值信息交流互通的发展提供新思路。 展开更多
关键词 食品供需网 跨链技术 信息共享 声誉激励 模式构建
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航空摄影统筹共享管理技术设计
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作者 毕凯 赵俊霞 《测绘通报》 CSCD 北大核心 2024年第S01期196-200,共5页
针对航空摄影统筹共享管理缺乏有效技术手段的问题,在分析当前技术现状和技术要求的基础上,提出了建立综合管理系统开展航空摄影“事前-事中-事后”全流程在线统筹共享管理的技术思路,设计了航摄统筹共享管理的工作流程、系统组成、数... 针对航空摄影统筹共享管理缺乏有效技术手段的问题,在分析当前技术现状和技术要求的基础上,提出了建立综合管理系统开展航空摄影“事前-事中-事后”全流程在线统筹共享管理的技术思路,设计了航摄统筹共享管理的工作流程、系统组成、数据流与接口,详细阐述了“事前”开展航摄需求技术统筹;“事中”进行航摄信息可视化在线共享;“事后”实现航摄成果目录信息快速更新等技术内容。研究成果可为实现全国航空摄影“一获多用”与信息及时共享提供新的解决方案。 展开更多
关键词 航摄需求 技术统筹 航摄资源 航摄成果目录 信息共享
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面向光电材料专业创新需求的课程教学模式探索——以“薄膜材料技术与物理”课程为例
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作者 潘新花 王凤志 +2 位作者 叶志镇 吕斌 刘芙 《教育教学论坛》 2024年第11期17-20,共4页
为给半导体行业国产装备的替代研发、攸关国家战略安全的关键“卡脖子”技术突破提供人才储备,按照卓越创新人才培养目标,根据学科特色,通过与专业知识有机结合,调整教学内容,改进教学方法,培养学生的思维能力和应用能力,培养满足光电... 为给半导体行业国产装备的替代研发、攸关国家战略安全的关键“卡脖子”技术突破提供人才储备,按照卓越创新人才培养目标,根据学科特色,通过与专业知识有机结合,调整教学内容,改进教学方法,培养学生的思维能力和应用能力,培养满足光电功能与信息材料类学科创新需求的卓越人才。通过教学改革,建立完整的,符合高端化、国际化、工程化培养要求的,适合光电功能与信息材料类学科创新需求的课程教学模式。改革成果将对光电功能与信息材料类专业的其他专业基础课程以及其他高校光电功能与信息材料类专业的教学改革具有重要的参考价值。 展开更多
关键词 光电功能与信息材料 创新需求 课程教学模式 材料科学与工程
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虚拟社区信息交互与数字乡村治理参与意愿——信息需求满足与社区认同的链式中介作用
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作者 杨琳 饶金涛 《人口与发展》 CSSCI 北大核心 2024年第6期130-139,共10页
数字乡村治理是乡村治理研究中的一个前沿主题。研究旨在探究新媒体场域下虚拟社区信息交互如何影响数字乡村治理参与意愿。基于SOR理论构建研究模型,通过问卷调查收集有效样本826份。采用层次回归分析和Bootstrap方法检验虚拟社区信息... 数字乡村治理是乡村治理研究中的一个前沿主题。研究旨在探究新媒体场域下虚拟社区信息交互如何影响数字乡村治理参与意愿。基于SOR理论构建研究模型,通过问卷调查收集有效样本826份。采用层次回归分析和Bootstrap方法检验虚拟社区信息交互对数字乡村治理参与意愿的影响及其中介作用路径。结果表明:虚拟社区信息交互对数字乡村治理参与意愿有显著正向影响。信息需求满足和社区认同在虚拟社区信息交互对数字乡村治理参与意愿的影响中分别发挥中介作用。存在“虚拟社区信息交互-信息需求满足-社区认同-数字乡村治理参与意愿”这一传导机制。从传播的传递观和仪式观的视角来审视这一过程时发现,以村务微信群为代表的虚拟社区扮演着“信息集散器”和“意识培养皿”的角色并发挥了相应的功能。 展开更多
关键词 虚拟社区信息交互 乡村治理参与意愿 信息需求满足 社区认同
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考虑横向渠道冲突的需求信息共享实现机制研究
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作者 韩朝亮 孙旭 李盈利 《工程经济》 2024年第4期4-16,共13页
在制造商的直营渠道与零售商的零售渠道销售商品的市场中,两者存在冲突与合作的关系,零售商在获得有利于销售的消费者信息后,受到消费者搭便车行为的影响,会面临是否将信息共享给制造商的选择,制造商则面临是否将由零售商提供消费者信... 在制造商的直营渠道与零售商的零售渠道销售商品的市场中,两者存在冲突与合作的关系,零售商在获得有利于销售的消费者信息后,受到消费者搭便车行为的影响,会面临是否将信息共享给制造商的选择,制造商则面临是否将由零售商提供消费者信息所获得的利润增加额分享给零售商的选择。本研究通过建立博弈模型,分析了信息预测精度、信息共享系数、收益共享系数对两个渠道商利润的影响,进而提出收益共享契约。研究表明:零售商向制造商共享需求信息时,能实现消费者搭便车情形下渠道各方收益双赢,制造商主动向零售商分享自身收益有利于实现零售商的信息共享。最后,通过算例对研究结论进行了直观的说明,同时也通过消费者的视角证明该机制的可行性和必要性。 展开更多
关键词 信息共享 需求预测 不确定性 激励机制 渠道整合
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信息茧房视域下在线问答社区用户健康信息需求对比研究
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作者 邹筱 刘垣春 周欢 《衡阳师范学院学报》 2024年第3期59-67,共9页
信息获取途径的固化是促使信息茧房形成的重要原因之一,本研究旨在让社区了解用户的健康信息需求热点,并为社区信息治理和社区间信息整合提供参考,减少信息茧房对网络信息空间治理带来的负面影响。借助主题词提取和文本共现网络构建等... 信息获取途径的固化是促使信息茧房形成的重要原因之一,本研究旨在让社区了解用户的健康信息需求热点,并为社区信息治理和社区间信息整合提供参考,减少信息茧房对网络信息空间治理带来的负面影响。借助主题词提取和文本共现网络构建等自然语言处理技术,利用不同类型在线问答社区中真实的用户提问数据,分析用户健康信息需求热点,并对其需求特征的异同进行对比分析。实验结果表明:一方面,综合型与垂直型在线问答社区对于疾病的基础病理知识、药物信息以及饮食方面的关注度较高,且均具有适老化需求。另一方面,综合型在线问答社区对于疾病的预防关注度较高,而垂直型在线问答社区更加关注于疾病治疗,综合型在线问答社区用户存在情感支持需求,但总体上国内在线问答社区的情感支持需求均不高。 展开更多
关键词 信息茧房 在线健康问答社区 健康信息需求 主题提取 文本共现网络
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