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The information contained in news articles plays a key role on
financial markets. It may describe changes in the fundamentals of a company
or influence the way investors perceive the risk associated with it. This paper
aims at measuring with mathematical means the main underlying semantic
content of news articles, such that it captures information useful to forecast
volatility.

A modified EGARCH model with external factors, obtained from a latent semantic alaysis on news articles, is proposed to measure the impact on volatility induced by the latent semantic content of the textual news data. I find that several semantic dimensions play an important
role in explaining observed volatility, while others are useful to forecast it. It
is likely, that with further research, a model based on semantic content could
greatly improve our understanding of the market’s response to news releases.

LSA --- GARCH --- EGARCH --- GARCH-X --- Latent Semantic Analysis --- Volatility Forecasting --- S&P500 --- Lagged corredlations --- Reuters --- News --- News Articles --- Conditional Volatility --- Sciences économiques & de gestion > Finance

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This Special Issue book focuses on the theory and practice of search engine optimization (SEO). It is intended for anyone who publishes content online and it includes five peer-reviewed papers from various researchers. More specifically, the book includes theoretical and case study contributions which review and synthesize important aspects, including, but not limited to, the following themes: theory of SEO, different types of SEO, SEO criteria evaluation, search engine algorithms, social media and SEO, and SEO applications in various industries, as well as SEO on media websites. The book aims to give a better understanding of the importance of SEO in the current state of the Internet and online information search. Even though SEO is widely used by marketing practitioners, there is a relatively small amount of academic research that systematically attempts to capture this phenomenon and its impact across different industries. Thus, this collection of studies offers useful insights, as well as a valuable resource that intends to open the door for future SEO-related research.

Information technology industries --- SEO --- search engine optimization --- website ranking --- ranking factors --- news websites --- Greece --- Cyprus --- comments --- ASEO --- reverse engineering --- citations --- google scholar --- microsoft academic --- web of science --- WoS --- scopus --- indicators --- algorithms --- relevance ranking --- citation databases --- academic search engines --- website quality --- web presence --- academic rankings --- accessibility --- search engines --- search --- online journalism --- media websites --- news content --- news articles --- SEO --- search engine optimization --- website ranking --- ranking factors --- news websites --- Greece --- Cyprus --- comments --- ASEO --- reverse engineering --- citations --- google scholar --- microsoft academic --- web of science --- WoS --- scopus --- indicators --- algorithms --- relevance ranking --- citation databases --- academic search engines --- website quality --- web presence --- academic rankings --- accessibility --- search engines --- search --- online journalism --- media websites --- news content --- news articles

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This Special Issue book focuses on the theory and practice of search engine optimization (SEO). It is intended for anyone who publishes content online and it includes five peer-reviewed papers from various researchers. More specifically, the book includes theoretical and case study contributions which review and synthesize important aspects, including, but not limited to, the following themes: theory of SEO, different types of SEO, SEO criteria evaluation, search engine algorithms, social media and SEO, and SEO applications in various industries, as well as SEO on media websites. The book aims to give a better understanding of the importance of SEO in the current state of the Internet and online information search. Even though SEO is widely used by marketing practitioners, there is a relatively small amount of academic research that systematically attempts to capture this phenomenon and its impact across different industries. Thus, this collection of studies offers useful insights, as well as a valuable resource that intends to open the door for future SEO-related research.

Information technology industries --- SEO --- search engine optimization --- website ranking --- ranking factors --- news websites --- Greece --- Cyprus --- comments --- ASEO --- reverse engineering --- citations --- google scholar --- microsoft academic --- web of science --- WoS --- scopus --- indicators --- algorithms --- relevance ranking --- citation databases --- academic search engines --- website quality --- web presence --- academic rankings --- accessibility --- search engines --- search --- online journalism --- media websites --- news content --- news articles --- n/a

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There is an increasing need for scholars and scientists to not only conduct research that has a significant impact on society but also to communicate that research widely. Such research outreach also contributes to engaging wide, diverse audiences. As such, the discursive practices have become more and more complex, multimodal, and multimedia-based for scholars and scientists. Scientific communication is currently shared to a great extent with peers in technology-mediated contexts, which allows formal scientific publications to be opened to public viewing. Alongside this so-called “primary output” (Puschmann 2015), new ways, modes, and discourses are being used to bring science closer to a lay audience and promote citizen participation. The affordances of existing and emergent platforms are fostering a change in audience roles, and with it, the erosion of boundaries between scientific communities and the general public, entailing the dissemination of scientific information and knowledge beyond the former (Trench 2008). We are thus witnessing the development of discursive practices which may be referred to as instances of “parascientific communication”. These practices transcend previously well-delimited communities and spheres of communication. Parascientific genres are evolving based on authoritative or expert knowledge (communicated through conventional, sanctioned scientific genres) but not subjected to the filters of internal, formal science communication (Kelly and Miller 2016). This Special Issue seeks to gain a better understanding of the purposes and specific features of these new scientific communication practices.

Research & information: general --- preprints --- open science --- science communication --- social media --- Total SciComm --- COVID-19 --- health communication --- user-generated content --- reader comments --- vaccines --- vaccine denial --- conspiracy theories --- digital news articles --- citizens' agentive power --- parascientific genres --- pseudoscience --- COVID-19 information --- knowledge communication --- knowledge-building processes --- multimodality --- social media engagement --- discourse analysis --- digital humanities --- textometry --- authority --- legitimacy --- blog posts --- dialogicity --- identity --- personal vs. institutional blogs --- graphical abstracts --- genre hybridity --- stylisation --- interpretive complexity --- visual literacy --- preprints --- open science --- science communication --- social media --- Total SciComm --- COVID-19 --- health communication --- user-generated content --- reader comments --- vaccines --- vaccine denial --- conspiracy theories --- digital news articles --- citizens' agentive power --- parascientific genres --- pseudoscience --- COVID-19 information --- knowledge communication --- knowledge-building processes --- multimodality --- social media engagement --- discourse analysis --- digital humanities --- textometry --- authority --- legitimacy --- blog posts --- dialogicity --- identity --- personal vs. institutional blogs --- graphical abstracts --- genre hybridity --- stylisation --- interpretive complexity --- visual literacy

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• Reference Manager
• EndNote
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There is an increasing need for scholars and scientists to not only conduct research that has a significant impact on society but also to communicate that research widely. Such research outreach also contributes to engaging wide, diverse audiences. As such, the discursive practices have become more and more complex, multimodal, and multimedia-based for scholars and scientists. Scientific communication is currently shared to a great extent with peers in technology-mediated contexts, which allows formal scientific publications to be opened to public viewing. Alongside this so-called “primary output” (Puschmann 2015), new ways, modes, and discourses are being used to bring science closer to a lay audience and promote citizen participation. The affordances of existing and emergent platforms are fostering a change in audience roles, and with it, the erosion of boundaries between scientific communities and the general public, entailing the dissemination of scientific information and knowledge beyond the former (Trench 2008). We are thus witnessing the development of discursive practices which may be referred to as instances of “parascientific communication”. These practices transcend previously well-delimited communities and spheres of communication. Parascientific genres are evolving based on authoritative or expert knowledge (communicated through conventional, sanctioned scientific genres) but not subjected to the filters of internal, formal science communication (Kelly and Miller 2016). This Special Issue seeks to gain a better understanding of the purposes and specific features of these new scientific communication practices.

preprints --- open science --- science communication --- social media --- Total SciComm --- COVID-19 --- health communication --- user-generated content --- reader comments --- vaccines --- vaccine denial --- conspiracy theories --- digital news articles --- citizens’ agentive power --- parascientific genres --- pseudoscience --- COVID-19 information --- knowledge communication --- knowledge-building processes --- multimodality --- social media engagement --- discourse analysis --- digital humanities --- textometry --- authority --- legitimacy --- blog posts --- dialogicity --- identity --- personal vs. institutional blogs --- graphical abstracts --- genre hybridity --- stylisation --- interpretive complexity --- visual literacy --- n/a --- citizens' agentive power