scholarly journals Use of Social Networks in Determining stockmarket Evolution

2020 ◽  
Vol 2 (1) ◽  
pp. 126-138
Author(s):  
Flaviu Bogdan Dan ◽  
Monica Maer-Matei ◽  
Stelian Stancu
Keyword(s):  
Stock Market ◽  
Sentiment Analysis ◽  
Calculation Methods ◽  
Analysis Process ◽  
The Social ◽  
Professional Environment ◽  
Differences Of Opinion ◽  
Degree Of Certainty ◽  
Mining Methods ◽  
High Level

Abstract This article aims to use text mining methods and sentiment analysis to determine the stock market evolution of companies as well as virtual currencies such as Bitcoin. The source of the text is the social media channel Twitter and the text is composed of individual messages sent by users. Although previous papers proved with a degree of certainty that this paper hypothesis is true, as we will see bellow, the area of research was focused only on the professional environment or known opinion makers and not taking into account a high population mass. To ensure that a high level of information is maintained after the sentiment analysis process, we will use multiple algorithms based on different calculation methods and different word dictionaries. In addition, indicators such as the number of assessments, the number of replays etc. will be added to the methodology. By the end of the paper we will be able to both identify a working methodology of analyzing text for the purposes of stock market prediction and also we will touch on the limitations faced when creating it and the ways through which we can expand and improve it’s reliability. The implementation of all these methods and of the multiple dictionaries helped us in simulating human behavior and the differences of opinion, when a group wants to analyze a text. The algorithm becoming a way to balance the different “opinions” that resulted out of the sentiment analysis.

Tweet Sentiment Analysis Regarding the Brazilian Stock Market

2019 ◽  
Author(s):  
Murilo C. Medeiros ◽  
Vinicius R. P. Borges
Keyword(s):  
Principal Component Analysis ◽  
Stock Market ◽  
Sentiment Analysis ◽  
Topic Modeling ◽  
Visual Analysis ◽  
Vector Space Model ◽  
Principal Component ◽  
Sentiment Classification ◽  
Space Model ◽  
Analysis Process

This paper describes a methodology for analyzing sentiments and for knowledge discovery in tweets regarding the Brazilian stock market. The proposed methodology starts by preprocessing and characterizing tweets to obtain an associated vector-space model. After that, a dimensionality reduction is em- ployed by using Principal Component Analysis and t-Stochastic Neighbor Embedding. Sentiment analysis of stock market tweets is performed by considering the tasks of sentiment classification, topic modeling and clustering, along with a visual analysis process. Experiments results showed satisfactory performances in single and multi-label sentiment classification scenarios. The visual analysis process also revealed interesting relationships among topics and clusters.

Introduction

2021 ◽  
pp. 1-19
Author(s):  
Kieran Heinemann
Keyword(s):  
Stock Market ◽  
Cultural Change ◽  
Small Scale ◽  
The Public ◽  
The Social ◽  
Popular Knowledge ◽  
History Of ◽  
Market Practices ◽  
High Level ◽  
Public Imagination

The book gains new insights into the history of Britain’s stock market by foregrounding the power of popular knowledge and specific market practices from a ‘bottom-up’ perspective. Alongside high-level financiers, the voices of the small-scale participants of the market will be heard, an approach that yields a subtle narrative of cultural change and adaptation. Throughout the century, a popular knowledge of the stock market was promoted by the financial press and by numerous investment guides that sold millions of copies. This exposure to the market in everyday life has been overlooked by other accounts preoccupied with intellectuals and economists, Westminster politics, and the engine rooms of high finance. Contextualizing specific financial practices of retail investors offers a better understanding of how the stock market captured the public imagination. In doing so, Playing the Market takes issue with the way the investing public has been conceptualized in the existing literature: all too often the actual investors are either absent from the narrative or are implied to be a homogenous group of rational actors who consciously adjust to changing economic parameters. However, if we listen to their voices and stories, the diversity of attitudes towards investment and speculation comes to the fore as well as the inherent difficulty of distinguishing between the two categories. What some investors considered a perfectly legitimate way of making money, others may have viewed as immoral profiteering. The ensuing moral debates over the social value of buying and selling financial securities mattered profoundly for the legitimacy and popularity of capitalism.

What Can We Learn From Factorial Surveys About Human Behavior?

Methodology ◽  
2019 ◽  
Vol 15 (1) ◽  
pp. 19-30 ◽  
Author(s):  
Knut Petzold ◽  
Tobias Wolbring
Keyword(s):  
Social Sciences ◽  
Behavioral Intentions ◽  
Actual Behavior ◽  
Full Time ◽  
Factorial Survey ◽  
Survey Experiment ◽  
Intended Behavior ◽  
The Social ◽  
Survey Experiments ◽  
High Level

Abstract. Factorial survey experiments are increasingly used in the social sciences to investigate behavioral intentions. The measurement of self-reported behavioral intentions with factorial survey experiments frequently assumes that the determinants of intended behavior affect actual behavior in a similar way. We critically investigate this fundamental assumption using the misdirected email technique. Student participants of a survey were randomly assigned to a field experiment or a survey experiment. The email informs the recipient about the reception of a scholarship with varying stakes (full-time vs. book) and recipient’s names (German vs. Arabic). In the survey experiment, respondents saw an image of the same email. This validation design ensured a high level of correspondence between units, settings, and treatments across both studies. Results reveal that while the frequencies of self-reported intentions and actual behavior deviate, treatments show similar relative effects. Hence, although further research on this topic is needed, this study suggests that determinants of behavior might be inferred from behavioral intentions measured with survey experiments.

ПРАГМАТИЧНИЙ ПОТЕНЦІАЛ НАТИВНОЇ РЕКЛАМИ: ФОРМИ, ТРЕНДИ (НА ПРИКЛАДІ НАТИВНОГО КОНТЕНТУ В СОЦІАЛЬНІЙ МЕРЕЖІ FACEBOOK ЩОДО БРЕНДА ФАКУЛЬТЕТУ ЖУРНАЛІСТИКИ ЗНУ)

2020 ◽  
pp. 113
Author(s):  
V. Kovpak ◽  
N. Trotsenko
Keyword(s):  
Social Network ◽  
Professional Training ◽  
Educational Process ◽  
Communication Strategy ◽  
Student Centered ◽  
Teacher Student ◽  
The Social ◽  
National University ◽  
High Level ◽  
The Impact

<div><p><em>The article analyzes the peculiarities of the format of native advertising in the media space, its pragmatic potential (in particular, on the example of native content in the social network Facebook by the brand of the journalism department of ZNU), highlights the types and trends of native advertising. The following research methods were used to achieve the purpose of intelligence: descriptive (content content, including various examples), comparative (content presentation options) and typological (types, trends of native advertising, in particular, cross-media as an opportunity to submit content in different formats (video, audio, photos, text, infographics, etc.)), content analysis method using Internet services (using Popsters service). And the native code for analytics was the page of the journalism department of Zaporizhzhya National University on the social network Facebook. After all, the brand of the journalism department of Zaporozhye National University in 2019 celebrates its 15th anniversary. The brand vector is its value component and professional training with balanced distribution of theoretical and practical blocks (seven practices), student-centered (democratic interaction and high-level teacher-student dialogue) and integration into Ukrainian and world educational process (participation in grant programs).</em></p></div><p><em>And advertising on social networks is also a kind of native content, which does not appear in special blocks, and is organically inscribed on one page or another and unobtrusively offers, just remembering the product as if «to the word». Popsters service functionality, which evaluates an account (or linked accounts of one person) for 35 parameters, but the main three areas: reach or influence, or how many users evaluate, comment on the recording; true reach – the number of people affected; network score – an assessment of the audience’s response to the impact, or how far the network information diverges (how many share information on this page).</em></p><p><strong><em>Key words:</em></strong><em> nativeness, native advertising, branded content, special project, communication strategy.</em></p>

The Certainty Principle

2018 ◽  
Author(s):  
Melvin A. Eisenberg
Keyword(s):  
Contract Law ◽  
Degree Of Certainty ◽  
High Level

Chapter 18 concerns the principle of contract law that damages must be proved with reasonable certainty. In practice this principle is usually applied to cut off profits that a promisee claims he would have made if the promisor had performed. Under classical contract law the degree of certainty required to prove lost profits was typically set at a high level and the use of probability-based analysis was explicitly or implicitly rejected. This approach is often referred to as the all-or-nothing rule. It is dramatically out of touch with the reality of probability and has begun to be less widely followed.

Property

2020 ◽  
pp. 276-292
Author(s):  
J. E. Penner
Keyword(s):  
Property Rights ◽  
Case Law ◽  
Property Law ◽  
Private Law ◽  
Making Sense ◽  
The Social ◽  
Bundle Of Rights ◽  
High Level

This chapter discusses property law. It considers the idea that property had a “nominalist” ontology, and it was in danger of “disintegration” as a working legal category for that very reason. Nominalism about property has had a significant impact in U.S. case law. The concern here, however, is whether it is a helpful stance to take as a theorist of property. The chapter argues that it is not. There are indeed “high” level abstractions about property which one cannot plausibly do without if one is to understand property rights and property law doctrine. Moreover, the “bundle of rights” (BOR) challenge does not assist one in making sense of these abstractions. The chapter then looks at the conceptual failure of BOR and the New Private Law as it relates to property. BOR is generally regarded as being underpinned by what might be called the Hohfeld-Honoré synthesis. The synthesis rests upon a fairly serious mistake, which is that while the Hohfeldian examination of jural norms is analytic if it is anything, Honor’s elaboration of the incidents making up ownership is anything but—it is functional. This means that Honoré describes the situation of the owner not principally in terms of his Hohfeldian powers, duties, and rights vis-à-vis others, but in terms of the social or economic advantages that an owner has by virtue of his position, and the terms and limitations of those advantages.

scholarly journals Aircraft Requirements for Sustainable Regional Aviation

Aerospace ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 61
Author(s):  
Dominik Eisenhut ◽  
Nicolas Moebs ◽  
Evert Windels ◽  
Dominique Bergmann ◽  
Ingmar Geiß ◽  
...  
Keyword(s):  
Systems Engineering ◽  
System Level ◽  
Policy Initiative ◽  
The European Union ◽  
Calculation Methods ◽  
Figures Of Merit ◽  
Performance Requirements ◽  
High Level ◽  
Different Levels ◽  
The Eu

Recently, the new Green Deal policy initiative was presented by the European Union. The EU aims to achieve a sustainable future and be the first climate-neutral continent by 2050. It targets all of the continent’s industries, meaning aviation must contribute to these changes as well. By employing a systems engineering approach, this high-level task can be split into different levels to get from the vision to the relevant system or product itself. Part of this iterative process involves the aircraft requirements, which make the goals more achievable on the system level and allow validation of whether the designed systems fulfill these requirements. Within this work, the top-level aircraft requirements (TLARs) for a hybrid-electric regional aircraft for up to 50 passengers are presented. Apart from performance requirements, other requirements, like environmental ones, are also included. To check whether these requirements are fulfilled, different reference missions were defined which challenge various extremes within the requirements. Furthermore, figures of merit are established, providing a way of validating and comparing different aircraft designs. The modular structure of these aircraft designs ensures the possibility of evaluating different architectures and adapting these figures if necessary. Moreover, different criteria can be accounted for, or their calculation methods or weighting can be changed.

scholarly journals Social Representations of Physical Disability in a Professional Environment

2021 ◽  
pp. 193672442098296
Author(s):  
Bernardeau-Moreau Denis
Keyword(s):  
Physical Disability ◽  
Social Representations ◽  
Social Construct ◽  
The Social ◽  
Professional Environment

Our article addresses disability as a social construct. More precisely, our intention is to see to what degree practices and exchange and interaction situations operate on social representations of physical disability in professional environments. Our aim is to provide some elements for reflection with regard to the imagined issues of physical disability in the workplace by focusing, in particular, on the social representations that they trigger among employees and managers who work with disabled colleagues on a day-to-day basis.

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