Towards a human eye behavior model by applying Data Mining Techniques on Gaze Information from IEC

In this paper, we firstly present what is Interactive Evolutionary Computation (IEC) and rapidly how we have combined this artificial intelligence technique with an eye-tracker for visual optimization. Next, in order to correctly parameterize our application, we present results from applying data mining techniques on gaze information coming from experiments conducted on about 80 human individuals

Fünf evidenzbasierte Heuristiken für den Einsatz von Video in der universitären Lehrerausbildung

This article provides a research synthesis on the use of video in pre-service teacher education. Common ideas and evidences concerning the use of video in pre-service teacher education are reviewed. Based on the state-of-the-art in using video, five research-based heuristics are derived. Research findings of a number of studies are further used to illustrate the specification of heuristics. Specifically, a set of rules of thumb about when, how, and why to use video is presented to clarify the strengths and limitations of video as a medium to support pre-service teacher learning. (DIPF/Orig.)Der Beitrag liefert eine Forschungssynthese zur Nutzung von Video in der universitären Lehrerausbildung. Die Forschung wird dahingehend zusammengefasst, welche Ideen derzeit verfolgt werden und welche Evidenzen zur Nutzung von Video vorliegen. Basierend auf dem Forschungsstand leiten die Autoren fünf forschungsbasierte Heuristiken zum Einsatz von Video ab. Die Forschungsergebnisse einer Reihe ausgewählter Studien werden genutzt, um die Heuristiken weiter zu spezifizieren. Es werden Erfahrungsregeln vorgestellt, wann, wie und warum Video in der universitären Lehrerbildung eingesetzt werden kann. Die Erfahrungsregeln sollen helfen, Stärken und Schwächen von Video als ein Medium zur Unterstützung des Lernens von Lehramtsstudierenden zu klären. (DIPF/Orig.

Grand Tour – a film in-debt(ed): Exploring the possibilities of the essayistic filmmaking form.

This practice-as-research thesis concentrates on the field of essayistic filmmaking. Through my practice and the written thesis, I explore how the montage of interwoven layers of images, sound, interactivity and networking connectivity can potentially expand the conventions of essayistic filmmaking practice. At the heart of my research is the creative practice of researching and developing an online essay film, Grand Tour a film in-debt(ed). The film explores an alternative reading of the recent Greek financial crisis without explicitly addressing the crisis, but in the tradition of essayistic filmmaking, by exploring the disjunctive threads that make links with the past and open the present to new interpretations. The development of Grand Tour is grounded in multiple iterative prototypes. Based on this incremental research process, I explore the possibilities of multiple interwoven layers of montage and the new creative potentials this creates for essayistic filmmaking practice. I define the montage of multiple interwoven temporalities as metabatic, and through the practice of developing Grand Tour, I suggest an alternative way of thinking about the recent Greek financial crisis which challenges the dominant narratives. My inspiration for developing Grand Tour is drawn from the writings of European travellers who visited Greece in the 18th and 19th centuries. For more than eight years I immersed myself in extensive archival research and developed several online film prototypes. Through this research I understood the role that these travellers had in the formation of the emerging modern Greek identity and explored their links to subsequent political and financial interventions and the accumulation of debt in the modern Greek state. Following the essayistic filmmaking tradition, I dialectically associate the financial debt with the cultural debt of ancient Greece, suggesting modes of ambiguity and speculative thinking that describe Greece as a place in a constantly disjointed state, defined by a series of fragmented political, economic and cultural past and present encounters. The creative process of my practice is a montage of multiple disjunctive fragments where linearity is constantly disrupted. My iterative creative practice and the disjunctive nature of the film do not offer specific answers and fixed interpretations. Instead, they suggest and explore questions, and enable new essayistic threads, that challenge the current limited narratives about the Greek financial crisis

Constructing distributed time-critical applications using cognitive enabled services

Time-critical analytics applications are increasingly making use of distributed service interfaces (e.g., micro-services) that support the rapid construction of new applications by dynamically linking the services into different workflow configurations. Traditional service-based applications, in fixed networks, are typically constructed and managed centrally and assume stable service endpoints and adequate network connectivity. Constructing and maintaining such applications in dynamic heterogeneous wireless networked environments, where limited bandwidth and transient connectivity are commonplace, presents significant challenges and makes centralized application construction and management impossible. In this paper we present an architecture which is capable of providing an adaptable and resilient method for on-demand decentralized construction and management of complex time-critical applications in such environments. The approach uses a Vector Symbolic Architecture (VSA) to compactly represent an application as a single semantic vector that encodes the service interfaces, workflow, and the time-critical constraints required. By extending existing services interfaces, with a simple cognitive layer that can interpret and exchange the vectors, we show how the required services can be dynamically discovered and interconnected in a completely decentralized manner. We demonstrate the viability of this approach by using a VSA to encode various time-critical data analytics workflows. We show that these vectors can be used to dynamically construct and run applications using services that are distributed across an emulated Mobile Ad-Hoc Wireless Network (MANET). Scalability is demonstrated via an empirical evaluation

Geometric guides for interactive evolutionary design

This thesis describes the addition of novel Geometric Guides to a generative Computer-Aided Design (CAD) application that supports early-stage concept generation. The application generates and evolves abstract 3D shapes, used to inspire the form of new product concepts. It was previously a conventional Interactive Evolutionary system where users selected shapes from evolving populations. However, design industry users wanted more control over the shapes, for example by allowing the system to influence the proportions of evolving forms. The solution researched, developed, integrated and tested is a more cooperative human-machine system combining classic user interaction with innovative geometric analysis. In the literature review, different types of Interactive Evolutionary Computation (IEC), Pose Normalisation (PN), Shape Comparison, and Minimum-Volume Bounding Box approaches are compared, with some of these technologies identified as applicable for this research. Using its Application Programming Interface, add-ins for the Siemens NX CAD system have been developed and integrated with an existing Interactive Evolutionary CAD system. These add-ins allow users to create a Geometric Guide (GG) at the start of a shape exploration session. Before evolving shapes can be compared with the GG, they must be aligned and scaled (known as Pose Normalisation in the literature). Computationally-efficient PN has been achieved using geometric functions such as Bounding Box for translation and scaling, and Principle Axes for the orientation. A shape comparison algorithm has been developed that is based on the principle of non-intersecting volumes. This algorithm is also implemented with standard, readily available geometric functions, is conceptually simple, accessible to other researchers and also offers appropriate efficacy. Objective geometric testing showed that the PN and Shape Comparison methods developed are suitable for this guiding application and can be efficiently adapted to enhance an Interactive Evolutionary Design system. System performance with different population sizes was examined to indicate how best to use the new guiding capabilities to assist users in evolutionary shape searching. This was backed up by participant testing research into two user interaction strategies. A Large Background Population (LBP) approach where the GG is used to select a sub-set of shapes to show to the user was shown to be the most effective. The inclusion of Geometric Guides has taken the research from the existing aesthetic focused tool to a system capable of application to a wider range of engineering design problems. This system supports earlier design processes and ideation in conceptual design and allows a designer to experiment with ideas freely to interactively explore populations of evolving solutions. The design approach has been further improved, and expanded beyond the previous quite limited scope of form exploration

Practicalities and Ideologies, (Re)-Considering the Interactive Digital Narrative Authoring Paradigm

In this paper, we discuss the hypothetical nature of authoring Interactive Digital Narratives (IDNs) and the formal authorial process for this medium. We explore the current state-of-the-Art in IDN authorial approaches and consider the perspective of a traditional and technologically naïve author. We propose a combination of meta-narrative and autonomous agent approaches in a quest to democratize IDN authoring to a wider, less technically oriented audience. In doing so, we ask fundamental questions with regards to how the user experience can be expressed within the authorial process. We also, as part of this discussion, reflect on the nature of authoring IDNs and the author him/herself

Twitter content curation as an antidote to hybrid warfare during Russia’s invasion of Ukraine

Concern regarding information disorders has been magnified by the proliferation of social networks. Since its occupation of Crimea in 2014, Russia has been spewing disinformation both inside and outside its borders, giving rise to a hybrid conflict, which since 24 February 2022 has become an invasion. Faced with this flood of malicious information on social networks, fact-checkers assume the role of content curators, relying on contextualization, verification, and literacy improvement to reduce such noise. This work studies the Twitter activity of three Spanish fact-checkers (Newtral, EFE Verifica, and Maldito Bulo), to fight this new epidemic of disinformation. The sample (n = 397) was subjected to content analysis to study the evolution of the verifications and their reaction capacity, the purpose of their activity, the formats in which the content is presented, and their distribution and interaction as revealed by reactions on Twitter. The results reveal a rapid, albeit repetitive, response of the fact-checkers to the invasion, support from them to end the internationalization of hoaxes, a reliance on denials and contextualization rather than literacy improvement, unattractive formats, and a distribution and impact that demonstrate a greater reaction to sensational and emotive content.