Social media opinion summarization using emotion cognition and convolutional neural networks     

《International Journal of Information Management》2020

Quickly and accurately summarizing representative opinions is a key step for assessing microblog sentiments. The Ortony-Clore-Collins (OCC) model of emotion can offer a rule-based emotion export mechanism. In this paper, we propose an OCC model and a Convolutional Neural Network (CNN) based opinion summarization method for Chinese microblogging systems. We test the proposed method using real world microblog data. We then compare the accuracy of manual sentiment annotation to the accuracy using our OCC-based sentiment classification rule library. Experimental results from analyzing three real-world microblog datasets demonstrate the efficacy of our proposed method. Our study highlights the potential of combining emotion cognition with deep learning in sentiment analysis of social media data.  相似文献   

A network-based concept extraction for managing customer requests in a social media care context     

《International Journal of Information Management》2020

Web 2.0 changed everyday life in many aspects, including the whole system that orbits around the purchase of products and services. This revolution necessarily involved also companies, because customers became increasingly demanding. The diffusion of social media platforms pushed customers to prefer this channel for quickly obtaining information and feedback about what they want to buy, as well as for asking help after the selling. In this framework, many organisations adopted a new way of providing assistance known as social customer care. A direct link to companies allows customers to obtain real-time solutions. In this paper, we introduce a new strategy for automatically managing the information listed in the requests that customers send to the social media accounts of companies. Our proposal relies on the use of network techniques for extracting high-level structures from texts, highlighting the different concepts expressed into the customers’ written requests. The texts can be then organised on the basis of this new emerging information. An application to the requests sent to the AppleSupport service on Twitter shows the effectiveness of the strategy.  相似文献   

Social media and entrepreneurship research: A literature review     

《International Journal of Information Management》2020

The rise of social media has led to changes in how entrepreneurs carry out their day-to-day activities. Studies on social media and entrepreneurship are relatively new and fragmented in their focus, however there is increasing interest from academia and practitioners for further research and investigation within this area. This study systematically reviews research carried out in the domain of social media and entrepreneurship. A total of 160 papers, published between 2002 and 2018 were synthesised to identify critical theories and research methods used in the domain. Based on the extent review, an integrative framework was developed to identify relationships amongst elucidated constructs. While most papers investigated the factors that drive social media adoption and use by entrepreneurs, it was found that the use of social media by entrepreneurs had transcended marketing and it is now used in business networking, information search and crowdfunding for their business. This has led to significant impact with improved firm performance and innovation enhancement being the essential outcomes. The literature review and framework further understanding of social media and entrepreneurship research, providing a useful basis for future studies and informs practice in this area.  相似文献   

Exploring CO2 mitigation pathway of local industries using a regional-based system dynamics model     

《International Journal of Information Management》2020

Low-carbon development based on low energy consumption, low pollution and low emissions has become an important strategic choice for worldwide governments to achieve sustainable development. In order to support smart government in decision making, information systems have been developed to monitor and predict CO₂ emissions. Most of the existing studies investigate CO₂ emission amounts, identify influencing factors of CO₂ emission and discuss potential suggestions to mitigate CO₂ emission for different industries. They often focus on CO₂ emission research of industries in a region or country, while the integration of carbon flow in the neighboring regions is not well studied. Therefore, this paper proposes a system dynamics model to explore an optimal carbon emission reduction path of a regional industry by integrating regional differences, i.e., industrial comparative advantages, technology advantages and the inter-regional context between the neighboring regions. In the case study, we use a key industry in a typical industrial region of Western China, the cement industry in Chongqing, as a scenario to simulate the CO₂ emission, possible energy demand and cement production of the cement industry in this region for recent years. Simulation results show that by leveraging the regional differences, especially the collaboration of the industrial chain and production capacity among regions, the cement industry in Chongqing can achieve the low-carbon target. In addition, through the analysis and discussions about the features of our model and Chongqing’s cement industry, it reflects that our model using regional differences is applicable to industries with a common demand market at the regional level such as energy, chemical and steel industries.  相似文献   

科技图书馆辅助高层次人才引进的服务案例研究     

曾敬 《情报探索》2020,(3):77-81

[目的/意义]探讨科技图书馆开展人才服务的方法和成效,为同行机构开展类似服务提供参考。[方法/过程]介绍广东省科技图书馆围绕高层次人才引进链条布局的服务链,并总结服务实践经验。[结果/结论]科技图书馆辅助高层次人才引进最关键要做好3点:一是要夯实数据基础,重视一手数据建设;二是要积极拓展业务面,重视工具方法组合创新;三是要综合多种服务模式,把握好时代热点和用户需求。  相似文献   

微博预置话题与突发话题的特征挖掘研究     

何跃  王欣瑞  韩玫  肖敏 《情报探索》2020,(4):50-57

[目的/意义]借鉴拉斯韦尔5W传播模型,探讨微博中预置话题与突发话题的特征。[方法/过程]基于因子分析的关键节点影响力评价方法来研究话题节点特征;利用Ward方法对话题博文量曲线进行聚类,并对曲线进行多项式拟合;对话题情感度曲线进行聚类,并对不同类型话题的峰度和整体情感加权平均高峰期进行研究。[结果/结论]话题首节点多是信息分享,其中突发话题的传播多是从事件的客观描述开始;话题微博按博文量可分为前热型、中热型、后热型、爆发型和持续型,其中突发话题比预置话题爆发得更早、持续时间更长;话题出现72小时后公众情感趋于中立,但突发话题情感曲线高峰期比预置话题更集中,整体情感加权平均高峰期更早出现,曲线趋势更复杂。  相似文献   

人为排放水汽对北京地区雾霾天气的影响分析     

李崇兴  赵荣  王海东 《科学与管理》2020,40(2):67-77

根据国家气象局中国天气网站公布的北京和河北部分城市整点天气实况以及环保部公布的空气质量指数等资料分析了北京地区空气含水量的本底值和雾霾气候条件下的增量。结果表明,采暖季节,人为释放的水气量导致北京地区空气含水量产生较大幅度的增加,对北京地区的雾霾天气加重起着不可忽视的作用。经过对2016年12月和2017年12月两次雾霾天气过程的分析,发现其平均空气含水量高出本底值0.78g/m3,北京城区站2017年12月29日0~7时空气含水量增幅为24.4%。  相似文献   

电子书包环境下小学智慧课堂教学资源的有效推送     

何增荣 《科教文汇》2020,(4):130-131,134

智慧课堂教学环境中,教师与学生之间的活动、交流、学习依赖多媒体信息技术平台推送的相关资源,学生借助网络媒体平台学习所形成的有效及时的数据,对于教师的课中教学环节起着极为重要的作用。本文将从教师教学、学生学习的数据资源推送着手,构建电子书包支撑环境下个性化师生互动的高效课堂。  相似文献   

大学生英语自主学习能力调查分析及其培养策略     

周琳 《科教文汇》2020,(4):172-173

自主学习一定不是自由散漫地学习,学习者本人应确定学习目标、掌握学习方法和学习战略。本文从学习英语的主观能动性的研究环境和理论知识入手;通过调查大学生英语自主学习的现实状态并分析了解从而总结出针对培养大学生英语自主学习能力的策略。  相似文献   

信息化环境下高职中药制剂分析技术课程教学中存在的主要问题及解决对策     

王虹  吕霞  牟丽娜 《科教文汇》2020,(9):123-124

网络教学资源优化和补充了中药制剂分析技术课程的课堂教学,但在实际使用过程中存在一些问题。本文探讨了信息化环境下教学中存在的主要问题,提出了合理的解决策略,希望进一步提高课程教学质量。  相似文献