Journal of Information Science最新文献_第10页

Constructing a multi-layer heterogeneous networks model to explore the public opinion evolution pattern of key users in public health emergencies 构建多层异构网络模型，探索突发公共卫生事件关键用户舆情演变规律

IF 2.4 4区管理学

Journal of Information Science Pub Date : 2023-05-06 DOI: 10.1177/01655515231169953

Tingting Li, Ziming Zeng, Shouqiang Sun, Jingjing Sun, Qingqing Li

{"title":"Constructing a multi-layer heterogeneous networks model to explore the public opinion evolution pattern of key users in public health emergencies","authors":"Tingting Li, Ziming Zeng, Shouqiang Sun, Jingjing Sun, Qingqing Li","doi":"10.1177/01655515231169953","DOIUrl":"https://doi.org/10.1177/01655515231169953","url":null,"abstract":"This article aims to discover key users in public health emergencies and explore their public opinion evolution patterns, thus providing theoretical support for the establishment of a clear cyberspace. In this article, a multi-layer heterogeneous network model based on multiple node attributes (user nodes, microblogs nodes, emotional nodes and topic nodes) is constructed at each stage of the public opinion cycle. Specifically, a novel semi-supervised self-training method based on the bidirectional encoder representations from transformers (SSST-BERT) method is proposed to automatically label the fine-grained emotional nodes. The latent Dirichlet allocation (LDA) model is used to construct the topic nodes. Moreover, the degree centrality, betweenness centrality and closeness centrality of the constructed heterogeneous network are adopted to dynamically identify key users. Finally, the emotional states and topic tendencies of key users are explored to obtain the public opinion evolution pattern of emergencies. The experimental results show that the SSST-BERT automatically labels emotion categories with an F1-score of 80.48%. The key users identified by the constructed heterogeneous network are more representative of the opinion status of ordinary users. Analysis of the public opinion status of key users reveals that netizens show more negative emotions such as anger and fear in public health emergencies, and the shift of focus drives the evolution of discussion topics.","PeriodicalId":54796,"journal":{"name":"Journal of Information Science","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2023-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42342461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

LEGO: Linked electronic government ontology 乐高:关联电子政府本体

IF 2.4 4区管理学

Journal of Information Science Pub Date : 2023-05-06 DOI: 10.1177/01655515231161562

C. Brys, Ismael Navas-Delgado, J. F. Aldana-Montes, M. D. M. Roldán-García

{"title":"LEGO: Linked electronic government ontology","authors":"C. Brys, Ismael Navas-Delgado, J. F. Aldana-Montes, M. D. M. Roldán-García","doi":"10.1177/01655515231161562","DOIUrl":"https://doi.org/10.1177/01655515231161562","url":null,"abstract":"E-government services are subject to a growing level of complexity, which requires a disruptive approach that better support the citizen needs concerning the government administration. Nowadays, available information technologies facilitate the description and online execution of administrative tasks, saving time and reducing possible errors. These technologies reduce administrative costs but require a complex electronic government system. We propose using semantic technologies to describe the e-government organisational units and services in the Open Government Data and Services context. The use of semantics improves government management, service delivery and decision-making processes. This article presents an extension of related work, introducing the evolution of the Ontology for Electronic Government (EGO): integrating other existing ontologies, supporting new features to describe e-government services and widening the usage scenarios. This extension enables the use in a real scenario with four use cases: the electronic government in the Province of Misiones (Argentina). However, the use in the domain of electronic government in a provincial context is also a proof of concept that this approach is general enough to expand into superior domains of countries that adopt the republican system of government with the division of government into the executive, legislative and judicial branches.","PeriodicalId":54796,"journal":{"name":"Journal of Information Science","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2023-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47664568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Online health information consumers’ learning across health-related search tasks from the perspective of retrieval platform switching 基于检索平台切换视角的在线健康信息消费者健康相关搜索任务学习

IF 2.4 4区管理学

Journal of Information Science Pub Date : 2023-05-05 DOI: 10.1177/01655515231169961

Yijin Chen, Hanming Lin, Jin Zhang, Yiming Zhao

引用次数: 0

The use of one-on-one interviews in library and information science: A scoping review 一对一访谈在图书馆和信息科学中的应用：范围界定综述

IF 2.4 4区管理学

Journal of Information Science Pub Date : 2023-05-02 DOI: 10.1177/01655515231171088

A. Matysek

引用次数: 0

SKIFF: Spherical K-means with iterative feature filtering for text document clustering SKIFF:用于文本文档聚类的具有迭代特征过滤的球形K-means

IF 2.4 4区管理学

Journal of Information Science Pub Date : 2023-05-02 DOI: 10.1177/01655515231165230

I. Sharma, Abhay Sharma, Rekha Chaturvedi, Jitendra Rajpurohit, M. Kumar

引用次数: 1

A review for comparative text mining: From data acquisition to practical application 比较文本挖掘综述：从数据采集到实际应用

IF 2.4 4区管理学

Journal of Information Science Pub Date : 2023-04-26 DOI: 10.1177/01655515231165228

Na Wei, Songzheng Zhao, J. Liu, Shenghui Wang

引用次数: 1

Improving semantic information retrieval by combining possibilistic networks, vector space model and pseudo-relevance feedback 结合可能性网络、向量空间模型和伪相关反馈改进语义信息检索

IF 2.4 4区管理学

Journal of Information Science Pub Date : 2023-04-24 DOI: 10.1177/01655515231167293

Wiem Chebil, L. Soualmia

{"title":"Improving semantic information retrieval by combining possibilistic networks, vector space model and pseudo-relevance feedback","authors":"Wiem Chebil, L. Soualmia","doi":"10.1177/01655515231167293","DOIUrl":"https://doi.org/10.1177/01655515231167293","url":null,"abstract":"To improve the performance of information retrieval systems (IRSs), we propose in this article a novel approach that enriches the user’s queries with new concepts. Indeed, query expansion is one of the best methods that plays an important role in improving searches for a better semantic information retrieval. The proposed approach in this study combines possibilistic networks (PNs), the vector space model (VSM) and pseudo-relevance feedback (PRF) to evaluate and add relevant concepts to the initial index of the user’s query. First, query expansion is performed using PN, VSM and domain knowledge. PRF is then exploited to enrich, in a second round, the user’s query by applying the same approach used in the first expansion step. To evaluate the performance of the developed system, denoted conceptual information retrieval model (CIRM), several experiments of query expansion are performed. The experiments carried out on the OHSUMED and Clinical Trials corpora showed that using the two measures of possibility and necessity combined the cosinus similarity and PRF improves the query expansion process. Indeed, the improvement rate of our approach compared with the baseline is +28, 49% in terms of P@5.","PeriodicalId":54796,"journal":{"name":"Journal of Information Science","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2023-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47951954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Predicting and characterising persuasion strategies in misinformation content over social media based on the multi-label classification approach 基于多标签分类方法的社交媒体虚假信息说服策略预测与表征

IF 2.4 4区管理学

Journal of Information Science Pub Date : 2023-04-24 DOI: 10.1177/01655515231169949

Sijing Chen, Lu Xiao

{"title":"Predicting and characterising persuasion strategies in misinformation content over social media based on the multi-label classification approach","authors":"Sijing Chen, Lu Xiao","doi":"10.1177/01655515231169949","DOIUrl":"https://doi.org/10.1177/01655515231169949","url":null,"abstract":"Persuasion aims at affecting the audience’s attitude and behaviour through a series of messages containing persuasion strategies. In the context of misinformation spread, identifying the persuasion strategies is important in order to warn people to be aware of the analogous persuasion attempts in the future. In this work, we address the prediction of persuasion strategies in micro-blogging posts through a multi-label classification approach based on a variety of lexical and semantic features. We conduct our experiments using a set of well-known multi-label classification algorithms, including multi-label decision tree, multi-label k-nearest neighbours, multi-label random forest, binary relevance and classifier chains. The results show that the model incorporating classifier chains and XGBoost algorithm achieves the best subset accuracy of 0.779 and the highest macro F1-score of 0.847. In addition, we evaluated and compared the features’ importance for different persuasion strategies and analysed the major errors of miss-out prediction. The findings of this article provide a benchmark for the multi-label classification of persuasion strategies in micro-blogging posts and lead to a better understanding of different persuasion attempts contained in social media misinformation.","PeriodicalId":54796,"journal":{"name":"Journal of Information Science","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2023-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47004905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Organising music’s structures: The classification of musical forms in Western art music 组织音乐结构:西方艺术音乐中音乐形式的分类

IF 2.4 4区管理学

Journal of Information Science Pub Date : 2023-04-21 DOI: 10.1177/01655515231167384

Deborah Lee

引用次数: 0

Knowledge diffusion trajectories of PageRank: A main path analysis PageRank的知识扩散轨迹:主要路径分析

IF 2.4 4区管理学

Journal of Information Science Pub Date : 2023-04-18 DOI: 10.1177/01655515231167388

Dejian Yu, Zhao Yan

引用次数: 1