Auflistung nach Autor:in "Alt, Florian"
1 - 10 von 293
Treffer pro Seite
Sortieroptionen
- Konferenzbeitrag3, 2, 1 Start with Breastfeeding: Supporting Partner Involvement in Breastfeeding Education Through a Gamified Mobile App(Mensch und Computer 2023 - Tagungsband, 2023) Tang, Kymeng; Kathrin, Gerling; Lijnen, Marnix; Geets, Marten; Geurts, Luc; Aufheimer, Maria; Muyldermans, JokeInteractive technology offers a unique opportunity to supplement breastfeeding education, engaging expecting parents in reflection on breastfeeding. Yet, interventions typically target mothers, and although partner support is an important predictor of breastfeeding success, it is rarely addressed in interventions. We present 3, 2, 1 Start with Breastfeeding, a gamified mobile app that allows users to take care of a virtual baby alone or with their partner while engaging with educational content. The app was designed off an existing breastfeeding intervention, and leverages Self-Determination Theory to address parents and their partners. An evaluation with twelve parents show that the app engaged parents and their partners, and successfully communicated the lived experience of early-stage breastfeeding. However, our results also suggest that involving partners needs to be done with nuance to emphasise autonomy. We discuss these findings to derive considerations for the design of interactive interventions to support breastfeeding.
- KonferenzbeitragA user-centred approach to facilitate locating company security policies; Nutzerzentrierter Ansatz zur Vereinfachung des Auffindens von Security Policies(Mensch und Computer 2023 - Tagungsband, 2023) Aldag, Lukas; Ballreich, Fabian; Berens, Benjamin; Volkamer, MelanieEnglish: An important factor for the effectiveness of security awareness measures in companies is awareness and consistency of security policies. As part of a case study, a document was created using a user-centred approach that gives an overview of all relevant individual documents (so-called overview document). In addition, a process for publication was developed and evaluated iteratively. The case study took place at a medium-sized energy company in Germany. General lessons learned are derived from the case study. For example, distributing important documents via e-mail carries the risk that this is perceived as less important or is not perceived at all. Deutsch: Ein wichtiger Faktor für die Effektivität von Security Awareness-Maßnahmen in Unternehmen sind die Bekanntheit und Konsistenz von Security Policies. Im Rahmen einer Case Study wurde mit einem nutzerzentrierten Ansatz ein Dokument, das den Nutzenden eine Übersicht über alle relevanten Einzeldokumente (sog. Übersichtsdokument) gibt und ein Prozess zur Bekanntmachung iterativ entwickelt und evaluiert. Die Case Study fand bei einem mittelgroßen Energieversorgungsunternehmen in Deutschland statt. Aus der Case Study werden allgemeine Lessons Learned abgeleitet. Beispielsweise birgt eine Verteilung von wichtigen Dokumenten über E-Mail die Gefahr, dass diese gar nicht oder als weniger wichtig wahrgenommen wird.
- KonferenzbeitragAccessible Text Tools for People with Cognitive Impairments and Non-Native Readers: Challenges and Opportunities(Mensch und Computer 2023 - Tagungsband, 2023) Heuer, Hendrik; Glassman, Elena LeahMany people have problems with reading, which limits their ability to participate in society. This paper explores tools that make text more accessible. For this, we interviewed experts, who proposed tools for different stakeholders and scenarios. Important stakeholders of such tools are people with cognitive impairments and non-native readers. Frequently mentioned scenarios are public administration, the medical domain, and everyday life. The tools proposed by experts support stakeholders by improving how text is compressed, expanded, reviewed, and experienced. In a survey of stakeholders, we confirm that the scenarios are relevant and that the proposed tools appear helpful to them. We provide the Accessible Text Framework to help researchers understand how the different tools can be combined and discuss how individual tools can be implemented. The investigation shows that accessible text tools are an important HCI+AI challenge that a large number of people can benefit from.
- KonferenzbeitragAchiever or explorer? gamifying the creation process of training data for machine learning(Mensch und Computer 2020 - Tagungsband, 2020) Alaghbari, Sarah; Mitschick, Annett; Blichmann, Gregor; Voigt, Martin; Dachselt, RaimundThe development of artificial intelligence, e. g., for Computer Vision, through supervised learning requires the input of large amounts of annotated or labeled data objects as training data. The creation of high-quality training data is usually done manually which can be repetitive and tiring. Gamification, the use of game elements in a non-game context, is one method to make tedious tasks more interesting. This paper proposes a multi-step process for gamifying the manual creation of training data for machine learning purposes. We choose a user-adapted approach based on the results of a preceding user study with the target group (employees of an AI software development company) which helped us to identify annotation use cases and the users' player characteristics. The resulting concept includes levels of increasing difficulty, tutorials, progress indicators and a narrative built around a robot character which at the same time is a user assistant. The implemented prototype is an extension of the company’s existing annotation tool and serves as a basis for further observations.
- KonferenzbeitragAn Active Tangible Device for Multitouch-Display Interaction(Mensch und Computer 2019 - Tagungsband, 2019) Brauer, Christoph; Ariza, Oscar; Steinicke, FrankIn this article, we introduce an interactive tangible input device (TID) for touchscreens. Our approach complements a passive TID design by active microcontroller-driven features focusing on user-experience aspects. The TID provides battery-powered wireless operation, autonomous position sensing capabilities, visual and tactile feedback as well as multiple touch inputs and momentary buttons. The device can be accurately tracked in capacitive touchscreens, enabling novel interaction techniques for content selection and manipulation in 2D or stereoscopic tabletop environments, mid-air interaction is also supported by the use of IMU and short-to-mid-range distance sensors. Overall, we present a multi-purpose device which can be built using off-the-shelf-components, features a seamless firmware integration, Unity3D integration, and a 3D-printable body enclosure.
- KonferenzbeitragActive Tangibles for Tabletop Interaction based on the Kniwwelino Prototyping Platform(Mensch und Computer 2019 - Tagungsband, 2019) Maquil, Valérie; Afkari Roshkari, Hoorieh; Moll, Christian; Hermen, Johannes; Latour, ThibaudTo allow researchers in exploring the use of active tangibles in different tabletop scenarios, affordable and easy-to-use rapid prototyping tools are needed. This paper presents the design and implementation of active tangibles that are based on a microcontroller based development platform called Kniwwelino. They are wirelessly connected via WiFi and can be programmed in Arduino or using a block-based visual programming language. We present the details of our implementation, propose a scenario of use, and describe our findings gained from the implementation of this scenario.
- KonferenzbeitragAdoption, Use and Diffusion of Crisis Apps in Germany: A Representative Survey(Mensch und Computer 2019 - Tagungsband, 2019) Grinko, Margarita; Kaufhold, Marc-André; Reuter, ChristianThe research field of crisis informatics examines the potentials and limitations of information and communication technology in crises, disasters, and emergencies. Although ICT plays an increasingly large role in crisis response and management, in-depth studies on crisis apps and similar technology in the context of an emergency have been missing. Based on responses by 1024 participants in Germany, we examine the diffusion, usage, perception and adoption of mobile crisis apps as well as required functions and improvements. We conclude that crisis apps are still a little-known form of disaster ICT, but have potential for enhancing communication, keeping users up to date and providing a more effective crisis management as supplement to other media channels dependent on different underlying infrastructures. However, they should be adaptable to user characteristics, consider privacy, allow communication and offer valuable information to raise awareness of potential disasters without creating an overload. Also, the familiarity with and trust in crisis apps should be addressed to maximize their beneficial impact on crisis communication and management. We discuss further implications as well as directions for future research with larger target groups and specific usage scenarios.
- KonferenzbeitragAffinity for technology interaction and fields of study: implications for human-centered design of applications for public administration(Mensch und Computer 2020 - Tagungsband, 2020) Wessel, Daniel; Heine, Moreen; Attig, Christiane; Franke, ThomasAffinity for Technology Interaction (ATI) describes whether a person approaches or avoids interaction with technology [1], making it an important variable in human-centered design. To determine whether ATI will likely remain an important variable in the future, we compared the ATI scores of those who will develop applications (students of media and computer science) with those who will use them in a specific context (students of public administration). We also looked for possible selection biases when conducting online samples regarding technology, by comparing a self-selected online sample of public administration employees with a sample of students of public administration conducted in a classroom, in which no selection biases should have had occurred. To locate the samples in the general population we also compared them with a quota sample of the German population. Results indicate markedly different approaches to technology interaction between the student samples and the online sample being more similar to the media and computer science students. We discuss consequences for the human-centered design process, especially for understanding the users.
- KonferenzbeitragAge differences in the anticipated acceptance of egoistic versus altruistic crash-control-algorithms in automated vehicles(Mensch und Computer 2020 - Tagungsband, 2020) Wischert-Zielke, Moritz; Weigl, Klemens; Steinhauser, Marco; Riener, AndreasThis paper presents the results of an online questionnaire study (N = 97) which examined participants’ anticipated acceptance of crash-control-algorithms (CCAs, i.e., algorithms aimed at effecting certain ethical accident outcomes). Concerning a self-sacrifice trolley dilemma, participants displayed a specific age-dependent pattern, in which both younger (18 – 44 years) and older (65+ years) participants rated their acceptance for egoistic algorithms higher and for altruistic algorithms lower when compared to middle-aged participants (45 – 64 years).
- KonferenzbeitragAI said, She said - How Users Perceive Consumer Scoring in Practice(Mensch und Computer 2023 - Tagungsband, 2023) Recki, Lena; Esau-Held, Margarita; Lawo, Dennis; Stevens, GunnarAs digitization continues, consumers are increasingly exposed to AI’s scoring decisions. However, we lack a thorough understanding of how users' misjudgments lead to a rejection of the system. Therefore, we must investigate the appropriation of such socio-technical systems in practice and how users describe their experience with algorithm-based scoring. To address this issue, we evaluated 1003 user reviews of an app of car insurance that calculates its premium based on the consumers' individual driving behavior. We find evidence that users develop their own folk theories to explain the algorithms with the help of situation-related experiences and that insufficient explanations lead to power asymmetries between consumers, the system, and the company. In particular, we uncover a fundamental conflict between computational risk assessment and the perceived agency to influence the score as a result of the different needs of the stakeholders involved.