2021 25th International Conference Information Visualisation (IV)最新文献_第5页

Visualisation Tool to Support Fraud Detection 支持欺诈检测的可视化工具

2021 25th International Conference Information Visualisation (IV) Pub Date : 2021-07-01 DOI: 10.1109/IV53921.2021.00022

Pedro Silva, Catarina Maçãs, Evgheni Polisciuc, P. Machado

引用次数: 2

Visualisation for social media analytics: landscape of R packages 社会媒体分析的可视化:R包的景观

2021 25th International Conference Information Visualisation (IV) Pub Date : 2021-07-01 DOI: 10.1109/IV53921.2021.00042

Atousa Ghahremani, M. Prokofieva

{"title":"Visualisation for social media analytics: landscape of R packages","authors":"Atousa Ghahremani, M. Prokofieva","doi":"10.1109/IV53921.2021.00042","DOIUrl":"https://doi.org/10.1109/IV53921.2021.00042","url":null,"abstract":"While existing literature indicates challenges and difficulties involved in analyzing social media data, limited research evaluated the capabilities of visualization methods to understand the behavior of individuals through their connections on social media platforms. Despite the need and growing demand in the industry at all stages of collection, preparation and analysis; a structured approach is missing in identifying the appropriate methods for visualization in social media analytics. To address the gap, we explored literature to propose methods to benefit researchers and practitioners who seek better understanding of analyzing social media data through visualization. This paper investigates the use of open source R environment in visualization with a focus on application in Social Network Analytics (SNA) and Social media analytics (SMA). SNA provides a foundation to study complex networks by considering distinct elements (nodes or vertices) and the connections between them (links or edges). The aim is to identify existing approaches and tools used in social network science and map them to existing packages and tools for visualization in SNA and SMA. This study contributes to the literature by providing an organized framework of available visualization tools in R that fit the needs of SNA and SMA. This provides opportunities for further application and software development to address emerging areas of need through analyzing the landscape of R packages.","PeriodicalId":380260,"journal":{"name":"2021 25th International Conference Information Visualisation (IV)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134199157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of critical thinking skills during online learning 在线学习中批判性思维能力的发展

2021 25th International Conference Information Visualisation (IV) Pub Date : 2021-07-01 DOI: 10.1109/IV53921.2021.00046

M. Nakayama, Satoru Kikuchi, Hiroh Yamamoto

引用次数: 0

Visually exploring a Collaborative Augmented Reality Taxonomy 视觉上探索协作增强现实分类法

2021 25th International Conference Information Visualisation (IV) Pub Date : 2021-07-01 DOI: 10.1109/IV53921.2021.00024

Bernardo Marques, Tiago Araújo, S. Silva, J. Alves, Paulo Dias, B. Santos

{"title":"Visually exploring a Collaborative Augmented Reality Taxonomy","authors":"Bernardo Marques, Tiago Araújo, S. Silva, J. Alves, Paulo Dias, B. Santos","doi":"10.1109/IV53921.2021.00024","DOIUrl":"https://doi.org/10.1109/IV53921.2021.00024","url":null,"abstract":"Augmented Reality (AR) has been explored with the objective to assist in scenarios of co-located or remote collaboration. To help understand how well collaborative work can be addressed with AR, it is important to foster harmonization of perspectives and create a common ground for systematization and discussion. In this vein, understand relationships among existing dimensions of collaboration, as well as identify research opportunities, is of paramount importance and thus tools that allow visually exploring information associated with Collaborative AR may be most valuable. In this paper, we present a first effort towards the creation of such an interactive visualization tool for exploration and analysis of collaborative AR research. It allows visualize data of selected papers organized according to a human-centered taxonomy on collaborative AR. In order to get insights into whether the structure was understood and if the representation was clear and efficient to use, we evaluated the proposed tool through a user study with 40 participants. Results suggest the tool has potential towards the creation of a shared understanding and identification of existing patterns, trends and opportunities within the field of collaborative AR.","PeriodicalId":380260,"journal":{"name":"2021 25th International Conference Information Visualisation (IV)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134065292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

EmojiText: An Information Visualization Technique for Analyzing Phrases and Sentiments EmojiText:一种分析短语和情感的信息可视化技术

2021 25th International Conference Information Visualisation (IV) Pub Date : 2021-07-01 DOI: 10.1109/IV53921.2021.00027

I. Costa, R. Lima, Carlos G. R. Santos, B. Meiguins, Anderson Marques, Roberto Yuri da Silva Franco

{"title":"EmojiText: An Information Visualization Technique for Analyzing Phrases and Sentiments","authors":"I. Costa, R. Lima, Carlos G. R. Santos, B. Meiguins, Anderson Marques, Roberto Yuri da Silva Franco","doi":"10.1109/IV53921.2021.00027","DOIUrl":"https://doi.org/10.1109/IV53921.2021.00027","url":null,"abstract":"This paper presents a proposal for text visualization with a focus on the representation of sentences and sentiments. It is noteworthy that traditional text visualization techniques, such as wordcloud, do not visually present relations between words, making it challenging to analyze textual data more deeply through visualization. EmojiText uses a directed graph, where the nodes represent the words and the edges represent the sequence in which the words appear in the sentences. Furthermore, the area of each node is related to the frequency of the represented word, and each node is associated with an emoji that represents the most frequent sentiment associated with the word. Finally, the edges also allow identifying the sentiment at the sentence level. The tool also includes zoom interactions, filters, details on demand, visual mapping configuration, and temporal analysis functionality through animations and multiple views for comparisons. The tool was developed in a javascript programming language using the d3.js framework and is available at http://emojitext.roberto.eti.br/.","PeriodicalId":380260,"journal":{"name":"2021 25th International Conference Information Visualisation (IV)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122721421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nudging students to reduce procrastination in office hours and forums 鼓励学生减少在办公时间和论坛上的拖延

2021 25th International Conference Information Visualisation (IV) Pub Date : 2021-07-01 DOI: 10.1109/IV53921.2021.00047

Eric Fouh, Wellington Lee, R. Baker

{"title":"Nudging students to reduce procrastination in office hours and forums","authors":"Eric Fouh, Wellington Lee, R. Baker","doi":"10.1109/IV53921.2021.00047","DOIUrl":"https://doi.org/10.1109/IV53921.2021.00047","url":null,"abstract":"In this article, we present the results of a study aiming to understand the impact of email nudge notification on students’ procrastination in office hours, and Piazza (QA forum) in a CS1 course at a large research university. With this study, we sought to understand if email nudges can be a useful tool in improving student’s learning behaviors, especially procrastination. After the first two homeworks, we randomly split students into two groups; the treatment group received the email, and the control group did not. The treatment group was further divided into two groups: one for the students who performed above the median (of the combined grades of homework 1 and 2) and those who performed below the median. Each sub-group received a slightly different version of the email. We found that students in the treatment group did not change their office hours’ attendance and Piazza interactions. We also found no difference in homework grades. However, students in the treatment group used more free late days on the following (third) homework. However, the change was short-lived, and they reverted to the pre-email level of late days usage on the fourth homework.","PeriodicalId":380260,"journal":{"name":"2021 25th International Conference Information Visualisation (IV)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123403114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Real-time visualization reconstruction in a real-world environment using Augmented Reality. 使用增强现实技术在现实世界环境中进行实时可视化重建。

2021 25th International Conference Information Visualisation (IV) Pub Date : 2021-07-01 DOI: 10.1109/IV53921.2021.00023

Tiago Araújo, B. Santos, Carlos G. R. Santos, B. Meiguins

引用次数: 2

MicroWorlds: A macro study of microbial interactions informs a bio-art series 微观世界:微生物相互作用的宏观研究为生物艺术系列提供了信息

2021 25th International Conference Information Visualisation (IV) Pub Date : 2021-07-01 DOI: 10.1109/IV53921.2021.00055

Courtney Brake, Yongjin Liu, P. Straight, C. LaFayette

引用次数: 0

Simplifying the Structural Recursion of the Data Funnel Interface 简化数据漏斗接口的结构递归

2021 25th International Conference Information Visualisation (IV) Pub Date : 2021-07-01 DOI: 10.1109/IV53921.2021.00033

H. P. Zellweger

{"title":"Simplifying the Structural Recursion of the Data Funnel Interface","authors":"H. P. Zellweger","doi":"10.1109/IV53921.2021.00033","DOIUrl":"https://doi.org/10.1109/IV53921.2021.00033","url":null,"abstract":"The paper describes recent improvements made to the structural recursion of the Data Funnel Interface. This end user interface organizes the raw data in a database table into a series of nested data lists that guide users to information. The new developments outlined in the article streamline the recursive algorithm and the data files that it produces. The program logic constructs a new SELECT statement on each recursive pass to retrieve a unique subset of attribute data from the table. Next, it transforms the subset’s structure into a structure of nested data lists that users can navigate in the interface. The branching data model (BDM) provides the framework for combining these two objectives into a single, recursive algorithm. The data BDM features a detailed description of the data mapping between two table attributes as one-to-many data relationships. The input data for the recursion is a list of table attributes that models the data funnel network. Each new subset of data in the series folds into the former one until it reaches the final subset, a primary key value. The prior algorithm draws on the depth-first tree growing methodology of the OHDS structure to manage these subsets. The paper introduces a new numbering scheme to organize the subsets of data. This improvement assigns a unique list number to each new subset when adding it to the database table. This capability replaces the need for the OHDS in the table. It also simplifies the data funnel software and makes it easier to maintain.","PeriodicalId":380260,"journal":{"name":"2021 25th International Conference Information Visualisation (IV)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128616895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Discovering Interpretable Machine Learning Models in Parallel Coordinates 在平行坐标中发现可解释的机器学习模型

2021 25th International Conference Information Visualisation (IV) Pub Date : 2021-06-14 DOI: 10.1109/IV53921.2021.00037

B. Kovalerchuk, Dustin Hayes

{"title":"Discovering Interpretable Machine Learning Models in Parallel Coordinates","authors":"B. Kovalerchuk, Dustin Hayes","doi":"10.1109/IV53921.2021.00037","DOIUrl":"https://doi.org/10.1109/IV53921.2021.00037","url":null,"abstract":"This paper contributes to interpretable machine learning via visual knowledge discovery in parallel coordinates. The concepts of hypercubes and hyper-blocks are used as easily understandable by end-users in the visual form in parallel coordinates. The Hyper algorithm for classification with mixed and pure hyper-blocks (HBs) is proposed to discover hyper-blocks interactively and automatically in individual, multiple, overlapping, and non-overlapping setting. The combination of hyper-blocks with linguistic description of visual patterns is presented too. It is shown that Hyper models generalize decision trees. The Hyper algorithm was tested on the benchmark data from UCI ML repository. It allowed discovering pure and mixed HBs with all data and then with 10-fold cross validation. The links between hyper-blocks, dimension reduction and visualization are established. Major benefits of hyper-block technology and the Hyper algorithm are in their ability to discover and observe hyperblocks by end-users including side by side visualizations making patterns visible for all classes. Another advantage of sets of HBs relative to the decision trees is the ability to avoid both data overgeneralization and overfitting.","PeriodicalId":380260,"journal":{"name":"2021 25th International Conference Information Visualisation (IV)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124032565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9