电子政务最新文献_第10页

Predicting Bitcoin Prices Using Sentiment Analysis Results 使用情绪分析结果预测比特币价格

电子政务 Pub Date : 2022-04-27 DOI: 10.1145/3537693.3537700

Chunze Li

{"title":"Predicting Bitcoin Prices Using Sentiment Analysis Results","authors":"Chunze Li","doi":"10.1145/3537693.3537700","DOIUrl":"https://doi.org/10.1145/3537693.3537700","url":null,"abstract":"Sentiment Analysis is a technique to determine the tone of a statement using computer software. It is an appliance of a linguistic and computer science intersection that could make a great impact on the business field. Lately, Sentiment Analysis has been used on social media platforms such as Twitter or Facebook to observe the tone of a statement. Examining the tone of tweets using the computer could be time-efficient and precise. SA studies could also be linked to Bitcoin. In this paper, I am using SA results of tweets on a given day to predict changes in the Bitcoin price and its returns. First, I collected the data, which included 31 data points of average sentiment scores and the corresponding 31 Bitcoin prices on the same day. The average sentiment scores were evaluated by VADER from a scale of -1 to 1 (-1 being the statements with the most negative tone, and 1 with the most positive). Then, I used linear regressions to predict Bitcoin price and returns using sentiment scores on the previous day/days. Predicting returns based on sentiments could allow me to find the relationship between Twitter users and Bitcoin and help me better understand the potential challenges. In the end, the predicted price was positively correlated to the sentiment scores the day before. Interestingly, the predicted return was negatively correlated with the sentiment scores and showed less correlation with a M coefficient of -0.86125.","PeriodicalId":71902,"journal":{"name":"电子政务","volume":"55 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82223904","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

Is Ethereum's Price Return Determined by COVID-19, Macro-financial, and Crypto Market Factors? 以太坊的价格回报是否由COVID-19、宏观金融和加密市场因素决定?

电子政务 Pub Date : 2022-04-27 DOI: 10.1145/3537693.3537714

S. A. H. Havidz, Tiffani, Gaby, M. Widjaja

引用次数: 0

Factors Impacting on Bitcoin Returns in the Top Three COVID-19 Infected Countries 影响三大COVID-19感染国家比特币回报的因素

电子政务 Pub Date : 2022-04-27 DOI: 10.1145/3537693.3537707

S. A. H. Havidz, Zefanya Angelita, Ingrid Claudia Calvilus, Junius, Tiffani

引用次数: 1

Stuck Inside a Cloud: Do SaaS business models require a rethink of the traditional approach to public market valuation? 陷入云端:SaaS商业模式是否需要重新思考公开市场估值的传统方法?

电子政务 Pub Date : 2022-04-27 DOI: 10.1145/3537693.3537743

Toby McCoy

{"title":"Stuck Inside a Cloud: Do SaaS business models require a rethink of the traditional approach to public market valuation?","authors":"Toby McCoy","doi":"10.1145/3537693.3537743","DOIUrl":"https://doi.org/10.1145/3537693.3537743","url":null,"abstract":"This paper explores the rapid growth in the public valuations of SaaS companies and examines whether this growth can be explained by investment theory. SaaS companies have experienced a remarkable rise in stock market valuations in recent years. Through the construction of a SaaS Index, constituted of 20 publicly traded SaaS companies, the empirical study tests the efficacy of two traditional models of investment theory, The Capital Asset Pricing Model and Fama-French's 3 Factor Model. The Index is used as the basis for these models and additionally is supported by Linear Regression models. Ultimately, the assumptions which underlie these models are shown to be unsuitable for the SaaS Industry due its relative youth and unique characteristics. It then seeks to expand upon existing theory and practice by building a positive argument and highlighting additional possible factors including Growth, Profitability and Enterprise Value/Revenue which exhibit a greater explanatory role in share price movement. This enables the construction of a new model, of a company's revenue growth and Enterprise Value relative to revenue supported by a qualitative narrative which better accounts for the relative growth in the SaaS Index over the observed period. Ultimately, while this new model holds greater explanatory power, the underlying characteristics of SaaS companies such as the subscription model, capital efficiency and ability to scale are important and are more likely to be effective drivers of value into the future.","PeriodicalId":71902,"journal":{"name":"电子政务","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81774104","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

Using Blockchain for Optimal and Transparent Resource Allocation: A Proposed Solution for Fund Allocation: Brief overview 使用区块链进行最优和透明的资源分配:一种建议的资金分配解决方案:简要概述

电子政务 Pub Date : 2021-04-28 DOI: 10.1145/3466029.3466056

Roxana Voicu-dorobantu, Chibuzor Udokwu, Bogdan Bocșe

引用次数: 0

Clustering and e-Commerce: Towards a Crossroads in a Particular Context: Categorization of Amazon products problematic in intermediation agencies A new context for the use of clustering in e-commerce 聚类与电子商务:在特定背景下走向十字路口:亚马逊产品在中介机构中的分类问题。聚类在电子商务中应用的新背景

电子政务 Pub Date : 2021-04-28 DOI: 10.1145/3466029.3466697

Richardson Ciguene, Bertrand Marron

{"title":"Clustering and e-Commerce: Towards a Crossroads in a Particular Context: Categorization of Amazon products problematic in intermediation agencies A new context for the use of clustering in e-commerce","authors":"Richardson Ciguene, Bertrand Marron","doi":"10.1145/3466029.3466697","DOIUrl":"https://doi.org/10.1145/3466029.3466697","url":null,"abstract":"In all marketplaces, including Amazon, knowing how to add your product in the most appropriate category is one of the determining factors for its sale. However, this work of categorization remains a rather long process, which requires a lot of research on the platform, without being guaranteed that the category finally chosen is really the best adapted to its product. This becomes even more complex in the case of an intermediation agency like Bizon, which manages hundreds of accounts on Amazon for various clients, where it must add a large quantity of products, making sure to choose the right categories. Moreover, in such a case, the process can require a lot of patience, as it involves multiple exchanges between the seller (the agency's customer), the integrator (the person who manages the customer's account in the agency) and the platform (Amazon), which can slow down the whole process considerably, and consequently, generate possible frustrations. So, this paper introduces our research work which focused on the optimization of this categorization process. More technically, we used thousands of data from our best-selling products to train a clustering model capable of suggesting/predicting the best category for a product based on keywords. This approach has actually enabled us to eliminate the passing of information between the three actors, in this case reducing the process from days to seconds. In the rest of this paper, after a presentation of this new context of using clustering in e-commerce, we make a detailed presentation of the problem and a state of the art. The end of the paper is devoted to the definition of our experimentation protocol and the presentation of the first results.","PeriodicalId":71902,"journal":{"name":"电子政务","volume":"57 7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83412590","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

The Role of Information Technology and Communication Technology as Online Learning Media 信息技术和通信技术作为在线学习媒介的作用

电子政务 Pub Date : 2021-04-28 DOI: 10.1145/3466029.3466051

Meiryani, Asl Lindawati, Erick Fernando, K. Deniswara, D. Wahyuningtias

{"title":"The Role of Information Technology and Communication Technology as Online Learning Media","authors":"Meiryani, Asl Lindawati, Erick Fernando, K. Deniswara, D. Wahyuningtias","doi":"10.1145/3466029.3466051","DOIUrl":"https://doi.org/10.1145/3466029.3466051","url":null,"abstract":"The use of the right learning model greatly affects the success of the learning process between lecturers and students. Learning media can be a vehicle for channeling messages and learning information. Learning media that are well designed will greatly help students digest and understand the course material. IT-based learning media can be in the form of internet, intranet, mobile phone, and CD Room. Its main components include the learning management system (LMS) and learning content (LC). Learning in higher education will always change according to the characteristics of students, learning materials and the ever-evolving environment. This study aims to examine the role of information communication technology in learning. The research method in this research is a quantitative method with a survey method, distributing online questionnaires to information systems lecturers at Bina Nusantara University in Indonesia. This study uses SPSS Statistics 24 software to test the hypotheses built in the study. The data obtained were analyzed by means of a comparative test. The results of the analysis of this study indicate that (1) there is no significant difference regarding the role of information communication technology in learning; (2) Inadequate internet connection; (3) low/inadequate power source; (4) Lack of manpower for teaching and administrative development; (5). Ignorance and low level of computer literacy, (6) The high cost of computer information technology equipment; (7) less time and less interest from lecturers in the use of Information Communication Technology facilities.","PeriodicalId":71902,"journal":{"name":"电子政务","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91084426","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

A Study on the Contrastive Effect of Dividend Distribution of Listed Companies 上市公司股利分配的对比效应研究

电子政务 Pub Date : 2021-04-28 DOI: 10.1145/3466029.3466054

Cuifeng Wu, Wenjie Huang

引用次数: 0

Determinants of Capital Structure: Evidence from China & UK Company Panel Data 资本结构的决定因素:来自中国和英国公司面板数据的证据

电子政务 Pub Date : 2021-04-28 DOI: 10.1145/3466029.3466044

Jie Lin

{"title":"Determinants of Capital Structure: Evidence from China & UK Company Panel Data","authors":"Jie Lin","doi":"10.1145/3466029.3466044","DOIUrl":"https://doi.org/10.1145/3466029.3466044","url":null,"abstract":"The purpose of this study is to find essential determinants in determining the capital structure. In order to find and compare the capital structure of developing countries in China and developed countries, this paper selected 730 listed companies for analysis through Shanghai A-Share and FTSE. From 2002 to 2014, the entire period selected for this study was 13 years, including a crucial period of the financial crisis that erupted in 2008. Since the data is a combination of time series and cross-section, this paper analyzes the panel data by establishing a regression model to find the determinants that influence the capital structure. The dependent variable is leverage, and the independent variables are tangibility, profitability, size, growth opportunities, non-debt tax shield, liquidity. The results of the regression show that both Chinese and British profitability, growth opportunities and liquidity have a negative correlation, and tangibility may have a positive impact on the total debt before the crisis. By comparing the results of each period, we can find that in the financial crisis, the profitability, growth opportunities and non- debt tax shield of the two countries were affected, and they changed from significant to nothing in the capital structure. At the same time, the study clearly shows that liquidity has become an essential variable in capital structure during these selected time periods.","PeriodicalId":71902,"journal":{"name":"电子政务","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77193937","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

Design and Development Multi-Verification Protocols of A Digital Signed Document System Using Component-Based Architecture 基于组件架构的数字签名文档系统多验证协议的设计与开发

电子政务 Pub Date : 2021-04-28 DOI: 10.1145/3466029.3466039

P. Netinant, Siwaphat Boonbangyang, Meennapa Rukhiran

{"title":"Design and Development Multi-Verification Protocols of A Digital Signed Document System Using Component-Based Architecture","authors":"P. Netinant, Siwaphat Boonbangyang, Meennapa Rukhiran","doi":"10.1145/3466029.3466039","DOIUrl":"https://doi.org/10.1145/3466029.3466039","url":null,"abstract":"In the digital age, a transformation of a traditional business to an electronic organization becomes widely general. One of the resolutions is an adopted information technology to design and develop software supporting the whole process of organizations. End users enable to access and use digital services anywhere and anytime. Covid-19 has directed us to face a dramatic death of human life. Social distancing is an announcement of avoiding and touching unknown people, including colleagues, lecturers, and students. In this article, we aim to propose the design and development of a digitally signed document system. The system can handle documents of university processes to advance online forms significantly. By providing the digitally signed document system, a documented strategy can integrate users (e.g., general employees, executives, directors, and lecturers) to send electronic documents with proportional high security. The digital signature of user identification can perform via user identification and verification protocols in many methods. The design and development of software models are approached using rapid application development (RAD). RAD is the most compatible with project factors. The software functionaries of the digitally signed document system are decomposed into components for improving software quality. The interface components deliver indicators of a friendly environment of green information technology as well.","PeriodicalId":71902,"journal":{"name":"电子政务","volume":"66 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83884896","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