scholarly journals Vulnerabilidade socioambiental como base para a gestão costeira no município de Paracuru – Ceará

2020 ◽  
Vol 13 (6) ◽  
pp. 2820
Author(s):  
Cristiano Da Silva Rocha ◽  
Fábio Perdigão Vasconcelos ◽  
Delano Nogueira Amaral ◽  
Maria Bonfim Casemiro ◽  
Otávio Augusto de Oliveira Lima Barra
Keyword(s):  
Social Media ◽  
Coastal Management ◽  
Social Vulnerability ◽  
Conservation Units ◽  
Coastal Planning ◽  
Environmental Vulnerability ◽  
Sample Unit ◽  
Intersection Area ◽  
Coastal Municipality

A geografia desempenha um papel importante quando existem trabalhos que tentam relacionar sociedade e natureza, estabelecendo formas (ou variáveis) para qualificar os elementos que compõem a paisagem. Neste trabalho, o objetivo foi aplicar a classificação da vulnerabilidade socioambiental adaptada de Medeiros e Souza (2016), com contribuições de Milanezi e Pereira (2016), como forma de contribuir com a gestão costeira de Paracuru- Ceará. Paracuru é um município costeiro, em que estão presentes diversos ambientes e três Unidades de Conservação Estaduais localizados no rio Curu e nas dunas de Paracuru. Para a análise, sobrepôs-se o mapa de vulnerabilidade ambiental (gerado a partir dos mapas de unidades geoambientais e de uso e ocupação) e de vulnerabilidade social, utilizando 17 variáveis incluídas no cálculo do índice organizados por setores censitários, menor unidade amostral. Foi observado trechos de vulnerabilidade socioambiental alta no setor próximo do rio Curu, na localidade de Santa Rita, com área de interseção de 2,3km² sede urbana localidade denominada de 2,3km² de interseção e setor 16, nas localidades de Muriti, Córrego do Curu e Pedrinhas, com interseção de aproximadamente 800 m². Nas dunas a sobreposição foi predominante de vulnerabilidade ambiental alta e vulnerabilidade social média – alta. Espera-se que as informações possam indicar os ambientes e seções da cidade que são mais suscetíveis e que essas áreas precisam de maior proteção. Socio-environmental vulnerability as a basis for coastal management in the municipality of Paracuru - CearáA B S T R A C TGeography makes an important role when there are works that try to relate society and nature, establishing forms (or variables) to qualify the elements that make up the landscape. In this work, the objective was to apply the classification of socio-environmental vulnerability adapted from Medeiros and Souza (2016), with contributions from Milanezi and Pereira (2016), as a way to contribute to the coastal management of Paracuru-Ceará. Paracuru is a coastal municipality, where there are several environments and three State Conservation Units located on the Curu River and on the Paracuru dunes. For the analysis, the map of environmental vulnerability (generated from the maps of geoenvironmental units and of use and occupation) and social vulnerability was superimposed, using 17 variables included in the calculation of the index organized by census sectors, the smallest sample unit. It was observed stretches of high socio-environmental vulnerability in the sector in the APA of the Curu River, in the locality of Santa Rita, with an intersection area of 2.3 km², in the urban headquarters, places called plateau da barra and secondary carnaubinha 3.1 km² intersection and sector 16, in the localities of Muriti, Córrego do Curu and Pedrinhas, with an intersection of approximately 800 m². In the dunes, the overlap was predominant of high environmental vulnerability and medium - high social vulnerability. It is hoped that the information can serve as a basis for indicating the paths that management should follow to achieve sustainability.Keywords: Landscape, socio-environmental vulnerability, coastal planning.

scholarly journals Classification of unlabeled online media

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sakthi Kumar Arul Prakash ◽  
Conrad Tucker
Keyword(s):  
Social Media ◽  
Real World ◽  
Graphical Model ◽  
Ground Truth ◽  
Classification Problem ◽  
Machine Learning Algorithms ◽  
Social Media Networks ◽  
Online Social Media ◽  
Wide Range

AbstractThis work investigates the ability to classify misinformation in online social media networks in a manner that avoids the need for ground truth labels. Rather than approach the classification problem as a task for humans or machine learning algorithms, this work leverages user–user and user–media (i.e.,media likes) interactions to infer the type of information (fake vs. authentic) being spread, without needing to know the actual details of the information itself. To study the inception and evolution of user–user and user–media interactions over time, we create an experimental platform that mimics the functionality of real-world social media networks. We develop a graphical model that considers the evolution of this network topology to model the uncertainty (entropy) propagation when fake and authentic media disseminates across the network. The creation of a real-world social media network enables a wide range of hypotheses to be tested pertaining to users, their interactions with other users, and with media content. The discovery that the entropy of user–user and user–media interactions approximate fake and authentic media likes, enables us to classify fake media in an unsupervised learning manner.

scholarly journals A Novel Co-Training-Based Approach for the Classification of Mental Illnesses Using Social Media Posts

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 166165-166172
Author(s):  
Subhan Tariq ◽  
Nadeem Akhtar ◽  
Humaira Afzal ◽  
Shahzad Khalid ◽  
Muhammad Rafiq Mufti ◽  
...  
Keyword(s):  
Social Media ◽  
Mental Illnesses

scholarly journals Automated Classification of Fake News Spreaders to Break the Misinformation Chain

Information ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 248
Author(s):  
Simone Leonardi ◽  
Giuseppe Rizzo ◽  
Maurizio Morisio
Keyword(s):  
Social Media ◽  
Network Architecture ◽  
Diffusion Mechanism ◽  
Automated Classification ◽  
Fake News ◽  
Neural Network Architecture ◽  
User Classification ◽  
The Social ◽  
Network Topologies

In social media, users are spreading misinformation easily and without fact checking. In principle, they do not have a malicious intent, but their sharing leads to a socially dangerous diffusion mechanism. The motivations behind this behavior have been linked to a wide variety of social and personal outcomes, but these users are not easily identified. The existing solutions show how the analysis of linguistic signals in social media posts combined with the exploration of network topologies are effective in this field. These applications have some limitations such as focusing solely on the fake news shared and not understanding the typology of the user spreading them. In this paper, we propose a computational approach to extract features from the social media posts of these users to recognize who is a fake news spreader for a given topic. Thanks to the CoAID dataset, we start the analysis with 300 K users engaged on an online micro-blogging platform; then, we enriched the dataset by extending it to a collection of more than 1 M share actions and their associated posts on the platform. The proposed approach processes a batch of Twitter posts authored by users of the CoAID dataset and turns them into a high-dimensional matrix of features, which are then exploited by a deep neural network architecture based on transformers to perform user classification. We prove the effectiveness of our work by comparing the precision, recall, and f1 score of our model with different configurations and with a baseline classifier. We obtained an f1 score of 0.8076, obtaining an improvement from the state-of-the-art by 4%.

Polarity Classification of Arabic Sentiments

2016 ◽  
Vol 11 (3) ◽  
pp. 32-49 ◽  
Author(s):  
Mohammed N. Al-Kabi ◽  
Heider A. Wahsheh ◽  
Izzat M. Alsmadi
Keyword(s):  
Social Media ◽  
Sentiment Analysis ◽  
Operating Characteristic ◽  
Opinion Mining ◽  
Online Social Network ◽  
The Social ◽  
Polarity Classification ◽  
Arabic Sentiment Analysis ◽  
Modern Standard

Sentiment Analysis/Opinion Mining is associated with social media and usually aims to automatically identify the polarities of different points of views of the users of the social media about different aspects of life. The polarity of a sentiment reflects the point view of its author about a certain issue. This study aims to present a new method to identify the polarity of Arabic reviews and comments whether they are written in Modern Standard Arabic (MSA), or one of the Arabic Dialects, and/or include Emoticons. The proposed method is called Detection of Arabic Sentiment Analysis Polarity (DASAP). A modest dataset of Arabic comments, posts, and reviews is collected from Online social network websites (i.e. Facebook, Blogs, YouTube, and Twitter). This dataset is used to evaluate the effectiveness of the proposed method (DASAP). Receiver Operating Characteristic (ROC) prediction quality measurements are used to evaluate the effectiveness of DASAP based on the collected dataset.

Social Media Handbuch

2021 ◽  
Keyword(s):  
Social Media ◽  
Data Processing ◽  
Business Models ◽  
Practical Application ◽  
Strategy Model ◽  
The Social ◽  
Platform Economy

The Social Media Handbook provides guidance on long-term developments in the ever-changing social media sector and explains fundamental interrelationships in this field. It describes a strategy model for the development of one’s own solutions, summarises the theories, methods and models of leading authors and shows their practical application, while also highlighting current developments and dealing with the topic of data processing in social media. An examination of the platform economy with its economic functions facilitates the classification of business models in social media. The book also shows how platforms and their algorithms can influence our actions and shape our opinions. With contributions by Prof. Karin Bjerregaard Schlüter, Andrea Braun, Franziska Geue, Tobias Knopf, Markus Korbien, Prof. Dr. Daniel Michelis, Stefan Pfaff, Thanh H. Pham, Tom Reichstein, Prof. Dr. Anna Riedel, Michael Sarbacher, Prof. Dr. Dr. Thomas Schildhauer, Prof. Dr. Hendrik Send, Dr. Stefan Stumpp, Prof. Dr. Sebastian Volkmann, Jan-Benedikt Weber, Julia Weißhaupt, Norman Wiebach und Prof. Dr. Christian Wissing.

scholarly journals Native Advertising—The Formats and Types of Content Most Demanded by Brands in the Spanish Media

2021 ◽  
Vol 2 (4) ◽  
pp. 529-544
Author(s):  
Daniel Zomeño ◽  
Rocío Blay-Arráez
Keyword(s):  
Social Media ◽  
Rapid Development ◽  
Editorial Content ◽  
Media Environment ◽  
The Social ◽  
Media Ecosystem ◽  
The Media ◽  
Media Formats ◽  
Depth Interviews

Media convergence and the incorporation of new narratives typical of the consumption habits of younger audiences in the social media environment have led to the proliferation of a wide variety of formats and types of content in the media ecosystem through which the editorial content offered to brands is being distributed. This qualitative research, using in-depth interviews with a qualified sample of branded content managers from the main Spanish media, allows us to determine the main characteristics of the native advertising demanded by advertisers. The results corroborate observations that content channelled through more sophisticated consumption experiences, using both multimedia and interactivity with a clear transmedia approach, tends to be better received by the audience and, therefore, in greater demand by brands. It also confirms that both video and social media formats have grown exponentially when it comes to providing an outlet for branded content. Based on the results obtained, a proposed classification of these products, including definitions, has been drawn up so they can be publicised to the professional world, offering the reflection and precision that their rapid development has not allowed until now.

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