Gephi

Theories on media consumption show that online content influences users’ attitudes and behavior. We employed open-source instruments of data visualization in order to build a network of vloggers based on teenagers’ preferences. The constructed network displays communities of users based on the YouTube content they follow. Used together with traditional research techniques, the method constitutes an effective tool in identifying the profile of students found at risk of engaging in deviant behavior or of school dropout. Grounded in network science, the method also proposes ways of reducing the diffusion of problematic content inside networks and eventually of ameliorating the engagement in deviant behavior and of reducing school dropout. 

This is a work-in-progress report from an exploration of the intersection between the fairly conventional digital humanities method of creating a database-specifically, the ELMCIP Electronic Literature Knowledge Base (http://elmcip. net/knowledgebase) and the digital methods strategy of directly analysing online, digital content.

This collection investigates the publics of the hashtag. Taking cues from critical public sphere theory, contributors are interested in publics that break beyond the mainstream – in other publics. They are interested in the kinds of publics that do politics in a way that is rough and emergent, flawed and messy, and ones in which new forms of collective power are being forged on the fly and in the shadow of loftier mainstream spheres.
Hashtags are deictic, indexical – yet what they point to is themselves, their own dual role in ongoing discourse. Focusing on hashtags used for topics from Ferguson, Missouri, to Australian politics, from online quilting communities to labour protests, from feminist outrage to drag pop culture, this collection follows hashtag publics as they trend beyond Twitter into other spaces of social networking such as Facebook, Instagram, and Tumblr as well as other media spaces such as television, print, and graffiti.

This paper discusses the emergency of retweets networks motivated by live TV transmissions. Based in Actor-Network Theory, the paper considers networks as result of assemblages and agencies that must be analysed in a temporal way, in opposition to a structuralist approach. It's also discussed how the debates on Twitter reconfigures previous sociotechnical controversies as well as how the mediatization of these controversies alters the methods used to study them. The case study is based in a dataset of 25.115 retweets collected in Twitter about the demonstration of an exoskeleton during 2014 FIFA World Cup opening ceremony. Two methodological approaches are proposed to analyse the subject of the debates and to show in a video and graphs how the RTs networks changed during the transmission.

کاربران ایرانی توییتر به چه میزان خود را در حلقه‌ی همفکران خود محدود می¬کنند؟ به چه میزان در معرض ارتباط با دیگری¬ها قرار می‌گیرند؟ این موقعیت¬ها از چه الگوهایی تأثیر می‌پذیرند؟ در این تحقیق سعی کرده¬ایم برای پاسخ دادن به این سوالات، ضمن شناسایی اجزای تشکیل‌ دهنده‌ی آنچه «توییتر ایرانی» نامیده می‌شود، الگوهای تأثیرپذیری کاربران ایرانیِ توییتر از نگرش‌های سیاسی اینفلوئنسرهای توییتر ایرانی را شناسایی و ارزیابی کنیم. بدین‌منظور اینفلوئنسرها و دنبال‌کننده‌ها (فالوئرها) بر اساس گرایش‌های سیاسی‌شان دسته‌بندی شده‌اند و الگوهای تأثیرپذیری دنبال‌کننده‌ها از اینفلوئنسرها به تفکیک گرایش‌های مختلف، شناسایی و ارزیابی شده‌اند. در دسته‌بندی اینفلوئنسرها و دنبال‌کننده‌ها از تکنیک‌های داده‌کاوی و در تحلیل داده‌های شبکه‌ای، از تحلیل‌های نرم‌افزار گفی استفاده کرده‌ایم.

The primary aim of the author’s dissertation was to create a regional prosopography of the New Kingdom, which is not limited to specific groups of persons, but rather illuminates all identifiable social strata of the Memphite region. In order to establish a prosopography that is as complete and representative as possible the available source material was compiled. In the course of the work, a total of approximately 5,000 data sets have been recorded in a relational database model created especially for this purpose. The main focus of the investigation was focused on prosopographic data, which was used as a criterion for the identification of individual persons on various types of objects. In addition, prosopographical data is relational data that describes the interconnections and relations of individual persons who can be assigned to a network of persons. The amount of data collected within the data compilation had not yet been processed for New Kingdom Memphis and could therefore be used as a basis for additional quantitative analyses and digital processing. Due to the large quantity and complexity of the prosopographic data, the presentation of the source material will not be provided in form of a printed catalogue. Instead, a searchable web database was created, which is available under the following link: https://www.prosopographia-memptihica.com

الملخـص: كان الهـدف الأساسـى مـن رسـالة الدكتـوراه الخاصـة بالمؤلـف هـو إنشـاء قاعـدة بيانـات بروسـبوجرافيك إقليميـة من عصـر الدولـة الحديثة، لا تقتصـر علـى مجموعـة معينـة مـن الأشـخاص، بـل تسـلط الضـوء علـى جميـع الطبقـات الاجتماعيـة المعروفـة مـن منطقة منـف. ومن أجل إنشـاء هـذا الأمـر بشـكل كامـل ونموذجـى بقـدر الإمـكان، تم تجميـع المـواد المتاحـة. وخـال فتـرة المشـروع، تم تسـجيل مـا يقـرب مـن 5000 مجموعـة بيانات فـىنمـوذجقاعـدةبيانـاتتمإنشـاؤهاخصيصـًالهـذاالغـرض.وكانالتركيـزالرئيسـىللمشـروععلـىتلـكالمعلومـاتالتىتتعلـقبالبروسـبوجرافيك، والتـى اسـتخدمت كمعيـار لتحديـد الأشـخاص مـن خـال أنـواع مختلفـة مـن الأدوات. بالإضافـة إلـى ذلـك، فـإن البيانـات البروسـبوجرافيكية مـاهـى إلا بيانـات نسـبية تصـف الروابـط والعاقـات بـن الأفـراد الذيـن يمكـن تخصيصهـم لمجموعـة معينـة مـن الأشـخاص. ويجـب التنويـه إلـى أن كميـة البيانـات التـى تم جمعهـا خـال مرحلـة جمـع المعلومـات ليسـت معالجـة بعـد لعصـر الدولـة الحديثـة فـى منـف، وبالتالـى يمكـن أن تسـتخدم كأســاس لتحليــل إضافــى كمــى ومعالجــة رقميــة. ونظــرًا لكميــة البيانــات البروســبوجرافيكية الضخمــة، لــن يتــم تقــديم مصــدر البيانــات فــى شـكل كتالـوج مطبـوع، ولكـن تم إنشـاء قاعـدة بيانـات قابلـة للبحـث، وهـى متاحـة تحـت الرابـط التالـى:https://www.prosopographia-memphitica.com
الكلمات الدالة: جبانة منف ــ الدولة الحديثة ــ بروسبوجرافيك ــ تحليل الشبكة الاجتماعية ــ قاعدة بيانات نصوص الأنساب ــ سقارة

The Ptolemaic military camp of Pathyris (modern Gebelein) in Upper Egypt has generated a rich body of documentary sources preserved on papyri, ostraca and wooden tablets, which reveal detailed information about the lives and affairs of the individuals living there. From shortly before the establishment of the camp (between 165 and 161 BCE) up until its dissolution (in 88 BCE), this documentary material allows the researcher to pose questions about the behavioural patterns of individuals and groups that can be examined on the basis of empirical data.

Because several individuals are attested in more than one text that are associated with 21 reconstructed ancient archives from the site, the archives can be meaningfully studied collectively and the community conceptualised and analysed in the form of social networks. By shifting focus from the actors to the relation they have to one another, formal Social Network Analysis (SNA) enables behavioural patterns to be described, measured and studied with the help of digital tools.

The talk presents some of the main results of the author’s PhD project by focusing on the socio-economic behaviour of selected individuals and groups within this small-scale community as revealed through the application of SNA to a corpus of c. 425 ancient documents written in the Greek and Demotic languages.

Over the course of Emperor Akbar's long reign , more than one hundred manuscript painters found employ at the Mughal court. The overwhelming majority of these artists worked in a collaborative capacity. This study uses Social Network Analysis and Digital Humanities methods to analyze the patterns of artistic collaboration and learning across several manuscript projects of the later sixteenth century. Among the conclusions advanced is that the structure of manuscript illustration project teams, which fostered a large number of acquaintanceships among many artists, facilitated the widespread transmission of diverse practices, thereby contributing to the production of a new, synthetic style.

During the Seventeenth century‏, the Republic of Lucca, as a small state, needed to seek protection especially from Spain, which was the actual ruler of the Italian peninsula; for this reason it was important to have a resident ambassador in Madrid. Connections and friendships were essential for the ambassador to obtain precious information on what was happening around Europe and to negotiate matters in the interest of his Republic (and even in his own) at the court of His Catholic Majesty.
The case study, which I present, is the embassy of Lorenzo Cenami in Madrid in the second half of the 17th century (1662-1674) and is based on both public sources and private ones, the latter held in the Cenami family archives. This paper has two aims. Firstly, it intends to reconstruct the network of people with whom the diplomat interacts: other diplomats, members of Consejos and Junta de gobierno, people connected with king Philip IV, and then with the queen Gobernadora Mariana of Austria and with the child king Charles II. Secondly, it will focus on how the ambassador constructs this large network of relationships: making his moves, in the various shifts of balance within the court during twelve years, requires not only a good knowledge of who are the prominent people, but also recurrent interactions through frequent visits, formal and informal meetings, and a vast use of the practice of gift giving.

Although the scientific discussion about the site and its monuments forms an independent research focus, the archaeological legacy of the Memphite necropolis of the second millennium BC remained uninvestigated for a very long time. The Memphite elite tombs of the New Kingdom (1539–1077 BC), which have been discovered and excavated during the past 45 years, eventually revealed much prosopographical data. Relevant texts and inscriptions are to be found not only on the walls of the tombs but also on different types of objects that were part of the tombs’ original equipment or decoration (e.g. coffins, stelae, statues, canopic jars, shabtis and decorated limestone blocks). By evaluating and comparing all prosopographical data, the Prosopographia Memphitica Project aims to attain a Memphite prosopography for the New Kingdom, which is intended to illuminate all identifiable social classes of the Memphite society and its relational patterns using historical network analysis.

This study tackles pertinent questions about daily life and socio-economic interactions in the late Ptolemaic town of Pathyris (186-88 BCE) through an empirically grounded network analysis of 428 Greek and Demotic documents associated with 21 archives from the site.

The author moves beyond traditional boundaries of Egyptological and Papyrological research by means of an innovative and interdisciplinary methodology – zigzagging back and forth between archaeological field survey, close reading of ancient texts, formal methods of Social Network Analysis (SNA) and explanatory theories and concepts borrowed from economics and other social sciences.

ISBN: 978-90-04-50026-6 (Vol. 1)
ISBN: 978-90-04-51251-1 (Vol. 2)
ISBN: 978-90-04-50025-9 (Full set)

This Project deals with the forensic analysis of Social Networking applications viz. Whisper, Snapchat and Hike Messenger on Android smartphones. With the increase in the use of smartphones for social networking, a plethora of information of the users’ activities is stored within the devices. Many occasions that relate to serious incidents may end up in Court. These activities can be used by forensic investigators as evidence during the investigations of such occasions. This project will involve investigating the smartphone of a “suspect” in an investigation and scanning the device for evidence that could tie the suspect with the crime. To summarise, the primary objective of this project is to investigate if it is possible to use evidence from social networking activity on a phone to support a forensic investigation in court or otherwise to document the challenges of doing so.

PT

Este estudo procura identificar posicionamentos identitários do rap português, e perceber como estes se transpuseram para a internet, assim como se configuram as comunidades online relacionadas ao movimento cultural na rede. Utilizamos as músicas de rappers para, através do seu discurso, traçar as temáticas abordadas e entender seus contextos. Mais tarde procuramos mapear as páginas e grupos generalistas de Facebook sobre hip-hop português, para que pudéssemos compreender o enquadramento e a formação das comunidades online.
A dissertação está dividida em seis capítulos. O primeiro traça a criação e popularização da internet, expondo o conceito de Sociedade em Rede no processo. No capítulo dois caraterizamos a noção de comunidade imaginada e comunidade online. O terceiro capítulo contextualiza a formação do movimento cultural hip-hop, os seus principais elementos e atributos. No capítulo quatro passamos para a compreensão desta corrente urbana em Portugal, definindo os aspetos que a nacionalizam e os atributos identitários num momento anterior à popularização e da migração em massa para a internet. O quinto capítulo analisa as caraterísticas do rap português na internet, enquanto o sexto estende essa pesquisa para mapear e perceber a formação de comunidades online nas páginas e grupos generalistas de Facebook sobre hip-hop.

ENG

This study aims to identify the identity positioning of Portuguese rap, and to understand how they have transposed themselves to the internet, as well as the configuration of the online communities related to the cultural movement on the web. We use the songs of rappers to, through their discourse, draw up the themes addressed and to understand their contexts. Later we try to map the generalist pages and groups on Facebook about Portuguese hip-hop, so that we can understand the framing and the formation of online communities. 
The dissertation is divided into six chapters. The first traces the creation and popularization of the internet, exposing the concept of Network Society in the process. In chapter two we characterize the notion of imagined community and online community. The third chapter contextualizes the formation of the hip-hop cultural movement, its main elements and attributes. In chapter four we move on to the understanding of this urban current in Portugal, defining the aspects that nationalize it and the identity attributes in a moment prior to popularization and mass migration to the internet. The fifth chapter analyzes the characteristics of Portuguese rap on the internet, while the sixth one extends this research to map and perceive the formation of online communities in Facebook's generalist pages and groups on hip-hop.

Se narra una experiencia de investigación que entrelaza Análisis de Redes Sociales y minería de datos en plataformas como Twitter y Facebook, mediante la reflexión sobre los alcances y desafíos del trabajo con datos, el uso de software -como Gephi- y las diferentes estrategias metodológicas de visualización de redes que incluyen el Análisis de Redes Semánticas y la Teoría del Actor-Red.

Secciones: 1) El domador de datos, 2) Equilibrista del software, 3) Recursos de saltimbanqui y 4) Andar en monociclo.

Da mesma forma que a ciência praticada contemporaneamente, o trabalho de campo realizado por naturalistas viajantes Oitocentistas também era uma atividade fundamentalmente social. O sucesso de suas expedições geralmente dependia da articulação de uma diversificada rede de auxiliares. Estes indivíduos poderiam colaborar cientificamente, com a localização, identificação, coleta e preparação de espécimes; logisticamente, com transporte, hospedagem e alimentação; ou compartilhando de seus conhecimentos adquiridos de forma empírica ao longo de sua vivência nas regiões a serem exploradas. Nos livros e diários de viagem dos naturalistas, é comum encontrarmos registradas a presença e a atuação de seus auxiliares. No entanto, em artigos científicos e textos dirigidos aos seus pares, a participação das populações locais é, em geral, invisível. Por muito tempo, a historiografia das viagens científicas também reproduziu esta tendência. Mas, recentemente, é possível começar a perceber que cada vez mais pesquisadores tem voltado seus focos para as relações sociais envolvidas no trabalho de campo. Ao longo desta pesquisa, procuramos contribuir com esta linha de investigações, ao fazer uma análise da rede de auxiliares envolvidos com a Expedição Thayer, liderada por Louis Agassiz. A partir dos relatos dos próprios viajantes, identificamos e analisamos as contribuições de 168 de seus auxiliares no Brasil. A metodologia utilizada se baseou, principalmente, na identificação e na classificação dos auxiliares em diferentes categorias, baseadas na natureza de sua contribuição e no seu envolvimento com a expedição, e na utilização de um programa de visualização de redes chamado Gephi. Acreditamos que este estudo permitirá compreender melhor o significado e a relevância da articulação de redes de auxiliares na Expedição Thayer, além de inspirar análises similares em outras expedições científicas.

The Ptolemaic military camp of Pathyris, established around 165 BC, has generated a rich body of written sources that reveal detailed information about the inhabitants and their socio-economic activities and relationships. Because the site was abandoned in the autumn of 88 BC, a large number of texts that are unlikely to survive continuous habitation has come down to us. Therefore, the Pathyrite community can be studied in detail through roughly three generations.

The paper introduces the author’s doctoral research and discusses the applicability of formal social network analysis (SNA) to ancient archive studies. The community can be meaningfully studied in the form of social networks through systematic documentation and analysis of prosopographical, attribute and relational data revealed by 427 Greek and Demotic documents associated with 21 ancient archives.

Esta tese analisa a viagem do naturalista britânico Henry Walter Bates ao Brasil, entre 1848 e 1859, enfocando suas relações com os habitantes locais e observando de que forma estes colaboraram para o êxito da expedição. Durante os seus 11 anos de estadia no país, Bates coletou espécimes de aproximadamente 14 mil espécies brasileiras, sendo cerca de oito mil até então desconhecidas na Europa e, a partir de suas observações, propôs a teoria hoje conhecida como mimetismo batesiano. Ademais, relatou sua vivência na Amazônia em um dos livros de viagem mais aclamados e bem-sucedidos de seu tempo, sendo reeditado até os dias de hoje. A viagem ao Brasil foi essencial para a inserção de Bates nos círculos científicos ingleses e para sua ascensão social e profissional. Por este motivo, é fundamental olhar para a sua passagem pelo Brasil para compreender o papel transformador de sua viagem e as estratégias empregadas por Bates para garantir o sucesso de sua empreitada. Sem apoio governamental, institucional ou financeiro, reunir uma ampla e diversificada rede de colaboradores locais foi essencial ao naturalista. Ao longo de seu relato de viagem, Bates faz referência a um total de 221 indivíduos, frequentemente nomeando e descrevendo aqueles que o auxiliaram. Desta forma, o livro de viagem, assim como os cadernos de campo mantidos pelo naturalista e algumas de suas correspondências pessoais, são fontes importantes para a compreensão da infraestrutura humana que tornou possível a sua expedição científica. Ao longo desta tese, a análise destas fontes é utilizada como base para a identificação de alguns dos principais indivíduos que compunham a rede de colaboradores de Bates no Brasil e para a observação das formas e dos momentos em que o naturalista buscava suporte na população local. Após a análise textual, uma visualização da rede de colaboradores de Bates foi criada com o software Gephi para complementar a leitura das interações dentro da rede. Observar como se davam estas interações é uma forma de compreender melhor a sociabilidade inerente ao trabalho naturalista de campo e de chamar atenção para uma complexa rede de indivíduos geralmente tornados invisíveis nas narrativas sobre as grandes viagens científicas do século XIX, mas frequentemente mencionados pelos próprios naturalistas em seus relatos de viagem por suas constantes colaborações.

Although the past few decades of medieval studies have witnessed some renewed interest in the collaborative process by which medieval Latin prose was composed, such interest has nevertheless remained all too scant, and only few solutions have been offered to cope with the difficulties that rise in cases of dubious authorship. Whereas it has been rightly acknowledged that scribes, notaries, and secretaries should be regarded not merely as instrumental in the literary process, but as active participants in the composition process who have left a considerable impact on the image and style of the dictator 1 and on the materialization and dissemination of the text, 2 this acknowledgement has nevertheless been accompanied by difficulties Speculum 92/S1 (October 2017).

Using data from the Infosphere, which bills itself as the “largest Futurama knowledge bank on the web,” aiming to be the most comprehensive on the subject, I began collecting my data. I first mapped out the data on paper, showing the connections, then expanded that into an adjacency list which has 175 nodes and 304 edges...

The digital tools that allow georeferencing may serve as a foothold for the study of the reception of a text that has generated a large number of translation throughout the world over the centuries. In the case of “Oráculo manual y arte de prudencia” (1647) by B. Gracián we have around 80 texts in some thirty languages. Such numbers require the use of automation for some stages of the analysis, although to enable the use of a program, the data must be structured in a certain way and, even, distorted. However, the need to reduce information and present exclusively unambiguous data encourages further data analysis. In the present article we offer a reflection on the problems that arose during the elaboration of maps of translations of Gracián’s work, together with a commented example of maps generated in this process («Chronology and geography of the translations of Oráculo»).

For this visualization...I used data from one of my favorite shows, Futurama. It was an animated sitcom created by Matt Groening, who also was one of the people behind The Simpsons, another animated sitcom, set in 31st century New New York. It first aired in March 1999 and its last episode aired in September 2013, with four direct-to-TV movies and 124 episodes...With that, there was a lot of material to choose from.

Networks are developing very quickly in the social sciences, and they are beginning to emerge in art history. This paper explores the making of network visualizations, from the building of the dataset to the analysis of results. Starting from an initial corpus regarding the Parisian auction sales for modern paintings, we developed a methodology to enrich it, thanks to linked open data platforms and technologies for realigning datasets. We then call into question the visualization of networks. Although it brings about an overview of the market and allows a very close reading, the best is the enemy of the good: too much information and too many nodes may represent a handicap, hence the need for both cutting networks and combining them with other modes of visualization.

Este trabalho procurou entender como se deu o fenômeno que foi a telenovela “Avenida Brasil” nas redes sociais. A pesquisa inicial ocorreu com a busca de mensagens através de hashtags utilizadas pelos usuários para se referirem à novela, como #oioioi e #oioioifinal, no serviço de microblog Twitter. A extração dos dados capturou mais de 150 mil retuites, que foram analisados em um software de visualização para criação de grafos da rede. Nossa abordagem buscou compreender quem eram os perfis que lideraram a rede.

Over the last couple of decades, one of the significant developments in
digital STS has been the rapid growth in digital methods and tools for
data harvesting, analysis and visualisation. The increasing availability
and deployment of digital tools raises questions about how to develop
an analytic practice that reconciles the theoretical sensibilities of STS
with tools and data that may sometimes be grounded in assumptions
alien to STS. This article explores these challenges by reporting on
two related digital STS projects that were carried out at the Techno-
Anthropology Lab in Copenhagen. Drawing on science historian Peter
Galison’s notion of trading zones, the article analyses how project
participants from different communities of practice exchanged and
combined tools, theories and projects in a variety of ways. The article
identifies two particular trading strategies: the introduction of assisting
ontologies or mini-theories, and the introduction of project-specific
problems and success criteria. In the final discussion, the article
argues that a reliance on these trading strategies in the future will
require digital STS to maintain and cultivate its theoretical sensibilities
through a continued dialogue with the broader field of STS, including,
in particular, new interventionist forms of STS scholarship.

A brief introduction to Gephi and to creating networks for historical research. Powerpoint used for the workshops ‘Untangling the Past: An Introduction to Databases and Network Analysis for Ancient Data’ (for the Sonderfoschungsbereich 933 Material Text Cultures, Heidelberg, May 5-8 2017) and ‘Network analysis with Gephi’ (for the department of history of the University of Antwerp, March 25 2019)

Attempts to reconstruct socio-economic life often equals striving to tackle social and economic complexity. Crucial to their success, is a methodological approach enabling systematic examination of large and diverse data sets, allowing the researcher to maintain the overview.

At least since the 1970s, network analytical methods have gained some recognition within historical fields. Ancient Egypt represents a particularly well-suited case study for network approaches. Still, formal network analysis has only by exception been applied to material and texts from ancient Egypt.

The current talk aims to critically discuss the applicability - and usability - of ‘Social Network Analysis’ within the field of Egyptology. In doing so, the author introduces her PhD-project, ‘Socio-Economic Relations in Ptolemaic Pathyris: A Network Analytical Approach to a Bicultural Community’. Demonstrations and visualizations are generated from preserved Greek and Demotic textual sources from the site.

Revealing glimpses into specific micro-histories, private archives not only allow us to come closer to individuals of the past, but also the relational ties connecting individuals or groups. In this respect, ‘Social Network Analysis’ (SNA) offers a range of analytical tools enabling systematic examination of large and complex data-sets. Still, digital and mathematical tools for identifying, describing, and explaining social relations have only by exception been applied to material from Ancient Egypt.

By means of studying the archive of Horos, son of Nechouthes through a distinct network approach, this talk aims to demonstrate the relevance of SNA, also within the historical field of Egyptology. Drawing on specific examples, it argue that core concepts of network theory may challenge or compliment more traditional methodologies, with the potential of leading to increased knowledge.

E-learning platforms automatically log detailed data on the interaction of learners with the platform and its contents; such educational data are source of valuable information that may be exploited to improve the educational process and its outcomes. Educational Data Mining research employs a variety of methods, techniques and tools to extract, process and analyze these data and produce results that will support end users such as students, teachers, researchers and administrators. Efficient and meaningful visualization of the data analysis results is today recognized as an urgent need connected to the increasing data volumes and complexity. Various visualization tools have been developed either for off-line or on-line processing; they may be either embedded in the e-learning platform (internal) or loosely connected to it (external). The present study is motivated by the observation that visualization of educational data mining results is of prime interest to teachers and class instructors who include e-learning platforms in their teaching scenarios – and yet, teachers and class instructors are rarely involved in the decisions regarding the choice of tools to be installed and employed or in the direct assessment and interpretation of the resulting plots and graphs. This contradiction is attributed (i) to the lack of a ‘guide’ for the teacher that would compare and classify available tools by educational functionalities rather than by technical features, and would thus aid the teacher to make a studied choice according to his/her specific needs, and (ii) to the technical aspects of the installation, parametrization and use of visualization tools that render them unattractive to educators seeking to get a quick, accurate overview of their class performance and behavior. Relevant decisions and parametrization are therefore left to technical staff, e.g. to platform administrators, who are expected to deliver optimal system performance on the basis of qualitatively expressed teachers’ needs. The present study aims to address these two issues: we carry out a comparative analysis of modern, popular data mining and visualization tools, such as Gephi, WEKA and ProM, as well as of conventional tools (e.g., MS Excel), organized across functional education tasks rather than strictly technical features. This type of comparison constitutes the major contribution of our work, as it is not covered in existing relevant research. The set of tasks adopted comprises visualization of a single variable, joint visualization and correlation of two or more than two variables and 3-D visualization. All tasks are carried out at the individual and at the class level. The comparative evaluation of these tools is carried out along two sets of criteria: (i) completeness, spatial organization, information coding, state transition and (ii) help and orientation features, navigation and browsing features and data set reduction. Moreover, comparison results are illustrated on real field data from a graduate course offered on the moodle platform in 2020, so that interested teachers may get a quick yet accurate idea on the relative merits of each tools. Results indicate the complementary character of the major existing tools – an outcome that recommends the combined use of more than one tool for optimal performance. Finally, the development of a Teacher Recommendation Tool for use by interested teachers who are not necessarily tech experts is outlined as future research.

Keywords: e-learning platforms, moodle, educational data mining, visualization, visualization tools, 3D visualization,comparative evaluation, Gephi, WEKA, ProM, MS Excel.

Cet article à quatre mains vise à interroger le processus d’élaboration, l’expérience et la pertinence des réseaux pour deux recherches, l’une en histoire moderne et l’autre en anthropologie. Il présente le passage d’un corpus d’archives à une cartographie de réseaux, en abordant notamment la qualification des données et les choix de représentation. D’un point de vue thématique, il montre l’intérêt et la méthodologie de la cartographie de réseaux pour interroger les interrelations intellectuelles et la circulation des savoirs. Cette dernière est problématisée à la fois comme thématique de ces travaux et interdisciplinarité par les outils et les notions. En tant que formalisation de cette collaboration, cet article revient également sur les partages de savoirs et de pratiques, ainsi que sur les circulations interdisciplinaires produites par cet intérêt commun pour les réseaux et pour le logiciel de cartographie Gephi.

Ségolène Mathieu et Léa Renucci, « Expérience partagée des réseaux de savoirs », PasserelleSHS [En ligne], 1 | 2021
URL : https://ouest-edel.univ-nantes.fr/passerelleshs/index.php?id=129

توییتر ایرانی روز به روز شلوغ‌تر و متکثرتر می‌شود؛ و این برای طرفداران گردش آزاد اطلاعات، خبر خوبی است. اما نکته‌ی نگران‌کننده‌ای نیز وجود دارد. به‌نظر می‌رسد به موازات رشد روزافزون تعداد کاربران توییتر ایرانی، استفاده از اکانت‌های تقلبی نیز در بین جریان‌های سیاسی مختلف، تبدیل به یک اقدام عادی شده است. در دنیای به‌شدت رسانه‌ای شده‌ی امروز، دعوای سیاست، نه چندان بر سر «واقعیت»، بلکه بیشتر بر سر «بازنماییِ واقعیت» است. این را می‌شود در همین بگومگوهای سیاسی در توییتر ایرانی به‌وضوح مشاهده کرد. ظاهراً برای مشارکت‌کنندگان در دعواهای سیاسیِ توییتر، چندان اهمیت ندارد که ادعاهایشان چه نسبتی با واقعیت دارد. همین که هشتگِ مورد حمایت آنها «ترند» شود و ثابت کنند که در جایگاه «اکثریت» قرار دارند برایشان کافی است و خود را برنده می‌دانند؛ گیرم که بخش قابل توجهی از این اکثریت‌نمایی‌ها به لطف اکانت‌های تقلبی محقق شده باشد!

Powerpoint used for the workshops ‘Untangling the Past: An Introduction to Databases and Network Analysis for Ancient Data’ (for the Sonderfoschungsbereich 933 Material Text Cultures, Heidelberg, May 5-8 2017) and ‘Network analysis with Gephi’ (for the department of history of the University of Antwerp, March 25 2019)