1,720,964 research outputs found
NetArg: an agent-based social simulator with argumentative agents
No full textWe show how agents with argumentative reasoning abilities can be effectively used to run social simulation experiments with NetArg. NetArg agents interact by exchanging arguments in support or against other arguments or opinions, and adapt to new knowledge. By running simulation experiments, we can replicate a robust result in social simulation, namely that small-world network topologies are able to foster information diffusion and cohesion among a population
Arguments in social networks
No full textIn spite of a substantive claim for the adoption of agent-based models for social simulation, a shared framework to model key reasoning capabilities of social agents has not been developed yet. To fill this gap, we propose a new model, whereby agents belonging to a social network reason and interact argumentatively, and use trust and coherence setting in order to decide whether and how to revise their own beliefs. With this model, we simulate the propagation of arguments and evolution of opinions in a social context
A New Framework for ABMs Based on Argumentative ReasoningAdvances in Social Simulation
No full textWe present an argumentative approach to agent-based modeling where agents are socially embedded and exchange information by means of simulated dialogues. We argue that this approach can be beneficial in social simulations, allowing for a better representation of agent reasoning, that is also accessible to the non computer science savvy, thus filling a gap between scholars that use BDI frameworks and scholars who do not in social sciences
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Status and participation in online task groups: An agent-based model
No full textThis chapter presents a dynamic model that explains status hierarchies in online task-oriented groups, whose members may be differentiated by an external status characteristic. The model reveals the participation of actors in online group discussions, how this participation is affected by external status characteristics, and how it leads to the formation of internal status relations. The model relies on and extends the approach by Skvoretz and Fararo known as E-state structuralism (ESS) in the formation of status hierarchies in task-oriented groups. The model is an attempt to modify the ESS model by broadening its interaction range and extending it beyond pairwise interactions. The author implements his micro-founded generative hypotheses as an agent-based model and has then tested the outcome of the model with a case study to empirically validate the simulations. Finally, the chapter evaluates behavior of the model in its parameter space and compares it to the observed outcomes
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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