Wagener, Andreas (2023)
Kulturmanagement, Nr. 172/2023, https://www.kulturmanagement.net/Themen/Kuenstliche-Intelligenz-im-Kulturmarketing-Es-geht-ums-Ausprobieren,4566 2023 (172).
Wagener, Andreas (2023)
Nerdwaerts.de, 16.06.2023, https://nerdwaerts.de/2023/06/was-generative-ki-wie-chatgpt-co-tatsaechlich-fuer-das-marketing-bedeutet/ 2023.
Im Zuge der Covid-Pandemie hat sich insbesondere in China der Trend des “live-eCommerce“ verstärkt, der dort im Jahr 2022 auf ein Volumen von 43,2 Milliarden Yuan geschätzt wird (etwa €6Mrd.) Dieser lässt sich in etwa als „digitales Teleshopping“ umschreiben und umfasst oft eine intensive Interaktion mit dem Publikum. Zuschauer können „live“ Fragen zu präsentierten Produkten stellen. Grundsätzlich lässt sich dies auch in den virtuellen Welten realisieren, wie zum Beispiel der chinesische Handelsriese AliBaba mit seinem Ansatz auf der Plattform TaoBao zeigt. Dort entstehen eigene dreidimensionale virtuelle Shopping-Umgebungen, die per Avatar besuchbar und „erlebbar“ sind. Die einzelnen Verkaufsabteilungen und Geschäfte sind mit – virtualisierten – Mitarbeitern besetzt, welche die Kunden in „Echtzeit“ beraten. Zu festen Terminen sollen zudem – analog zu dem bereits praktizierten „gewöhnlichen“ online-Live-Shopping – interaktive Verkaufsveranstaltungen und Produktpräsentation stattfinden.
Graßhoff, Hendrik; Schiffner, Stefan; Adamsky, Florian (2023)
TRUSTbus at ARES 2023 (20th International Workshop on Trust, Privacy and Security in the Digital Society).
Contact Tracing Apps (CTAs) have been developed to contain the coronavirus disease 19 ( COVID-19) spread. By design, such apps invade their users’ privacy by recording data about their health, contacts, and—partially—location. Many CTAs frequently broadcast pseudorandom numbers via Bluetooth to detect encounters. These numbers are changed regularly to prevent individual smartphones from being trivially trackable. However, the effectiveness of this procedure has been little studied.
We measured real smartphones and observed that the German Corona-Warn-App (CWA ) exhibits a device-specific latency between two subsequent broadcasts. These timing differences provide a potential attack vector for fingerprinting smartphones by passively recording Bluetooth messages. This could conceivably lead to the tracking of users’ trajectories and, ultimately, the re-identification of users.
Heckel, Martin; Adamsky, Florian (2023)
The 3rd Workshop on DRAM Security (DRAMSec 2023), co-located with ISCA 2023.
The memory controller of the CPU uses bank addressing functions to determine physical locations within DRAM DIMMs. There are many fields of application for these addressing functions, particularly in security. For exam- ple, many Rowhammer proofs-of-concept use bank addressing functions to select addresses located on the same bank but in different rows to produce row conflicts. AMD provides these addressing functions for older CPU models. Hence, research on reverse-engineering addressing functions mainly targeted Intel CPUs since Intel did not publish these functions. However, AMD stopped to publish the DRAM addressing functions several years ago. AMD manufactures roughly a third of the sold CPUs in today’s CPU market. We analyze reverse- engineering tools for addressing functions and find that they do not work with AMD CPUs, hindering reverse-engineering at- tempts and Rowhammer attacks on systems with AMD CPUs. In this paper, we introduce an approach to reverse-engineer the addressing functions of AMD CPUs, which facilitates future Rowhammer experiments on AMD CPUs.
Peinl, René; Wirth, Johannes (2023)
11th International Conference on Artificial Intelligence and Applications (AIAP) 2023.
Large language models (LLMs) have garnered significant attention, but the definition of "large" lacks clarity. This paper focuses on medium-sized lan-guage models (MLMs), defined as having at least six billion parameters but less than 100 billion. The study evaluates MLMs regarding zero-shot genera-tive question answering, which requires models to provide elaborate answers without external document retrieval. The paper introduces an own test da-taset and presents results from human evaluation. Results show that combin-ing the best answers from different MLMs yielded an overall correct answer rate of 82.7% which is better than the 60.9% of ChatGPT. The best MLM achieved 46.4% and has 7B parameters, which highlights the importance of using appropriate training data for fine-tuning rather than solely relying on the number of parameters. More fine-grained feedback should be used to further improve the quality of answers.
Ruscheweyh, Ruth; Dresler, Thomas; Förderreuther, Stefanie; Gaul, Charly; Goßrau, Gudrun; Jürgens, Tim Patrick; Ruschil, Victoria; Straube, Andreas; Scheidt, Jörg (2023)
Ruscheweyh, Ruth; Dresler, Thomas; Förderreuther, Stefanie; Gaul, Charly...
Cephalalgia 43 (5), 1 - 11.
DOI: 10.1177/03331024231174855
Most migraine patients need an effective acute medication. Real-world
data can provide important information on the performance of acute
migraine medication in clinical practice.
Methods
We used data from the German Migraine and Headache Society Headache
Registry, where patients rate efficacy and tolerability of and
satisfaction with each of their acute headache medications.
Results
A total of 1756 adult migraine patients (females: 85%, age: 39.5 ± 12.8
years, headache days per month: 13.5 ± 8.1) were included. Of these, 93%
used acute medication, most frequently triptans (59.3%) and/or
non-opioid analgesics (56.4%), and 58.5% rated efficacy as good or very
good. This was more frequent for triptans (75.4%) than for non-opioid
analgesics (43.6%, p < 0.001). Among non-opioid analgesics, naproxen
was rated most effective (61.9% very good or good, p < 0.001 compared
to ibuprofen, acetylsalicylic acid and paracetamol). Patient-rated
efficacy significantly declined with higher headache frequencies
(p < 0.001), and this effect remained significant after omitting
patients overusing acute medication.
Conclusion
In the present population recruited at specialized headache centers,
patients rated triptans as more effective than non-opioid analgesics,
naproxen as more effective than ibuprofen, and acute medication efficacy
decreased with increasing headache frequency.
Trial registration: The German Migraine and Headache Society Headache Registry is registered with the German Clinical Trials Register (DRKS 00021081).
Wolff, Dietmar (2023)
Workshop IT-Lounge Vogtland, Plauen 05.05.2023.
Wagener, Andreas (2023)
Haufe Neuromarketing-Wissen, 2023, https://www.neuromarketing-wissen.de/artikel/was-generative-ki-wie-chatgpt-co-tatsachlich-fur-das-marketing-bedeutet .
Der Hype um KI-Werkzeuge wie ChatGPT, Dall-E oder Midjourney ist ungebrochen. Ohne Frage wird generative KI das Marketing ganz grundsätzlich verändern. Unser Experte Andreas Wagener zeigt, wo KI bereits Anwendung findet und wie Sie sie nutzen können.
Wagener, Andreas (2023)
Institut für innovative Live Kommunikation (ILK) (Hrsg.): LiveCom-LAB Conference Proceedings, 2023, .
DOI: 10.25716/thm-227
Der Artikel widmet sich konzeptionell den Chancen der Live-Kommunikation, die sich durch die Schaffung virtueller Welten und deren Verschmelzen mit der physischen Welt zu einem umspannenden „Metaverse“ ergeben. Ein Schwerpunkt nimmt dabei die Kommunikation via digitale Lebewesen (Virtual Beings) ein. Ziel ist es, anhand von Use-Cases und einer Analyse existierender Instrumente und Plattformen die Handlungsfelder für die Kommunikationspraxis zu ermitteln. Dabei greift der Beitrag auch auf sekundäre Marktdaten aus Asien zurück, wo die Entwicklung bereits deutlich weiter fortgeschritten ist. Nebenvirtuellen Commerce-Umgebungen sind dort von virtuellen Moderatoren begleitete Live-Shopping-Events sehr erfolgreich – was jeweils neue Herausforderungen für die Marketingkommunikation impliziert. Insgesamt dürfte der Schlüssel für den Erfolg der Live-Kommunikation im Metaverse dabei nicht in der Übertragung erprobter physischer Ansätze in die virtuelle Umgebung, sondern in der Entwicklung neuer, systemadäquater Instrumente liegen. Der Beitrag gewährt damit einen ersten Einblick zur Thematik, der Anknüpfungen für vertiefende Analysen ermöglichen soll.
Wagener, Andreas (2023)
Haufe/Freiburg.
Wagener, Andreas (2023)
Hofer Beiträge zur digitalen Transformation 2023, 03/2023.
DOI: 10.57944/1051-174
Wagener, Andreas (2023)
dpr – Digital Publishing Report, Nr. 03/2023, S. 51- 55, https://digital-publishing-report.de/wp-content/uploads/dpr/ausgaben/dpr_Heft03_2023.pdf 2023 (03/2023), 51-55.
Wagener, Andreas (2023)
Haufe Neuromarketing-Wissen, 2023, https://www.neuromarketing-wissen.de/artikel/ki-tools-wie-chatgpt-erfolgreich-im-arbeitsalltag-nutzen .
Wagener, Andreas (2023)
Nerdwaerts.de, 13.01.2023, https://nerdwaerts.de/2023/01/virtual-commerce-im-metaverse/ 2023.
Auch wenn bei Meta die Einführung holprig erscheint und Microsoft und andere Firmen ihre Strategien auf den Prüfstand stellen: Das viel diskutierte Metaverse ist schon da – jedenfalls in einzelnen Bereichen, wie etwa bei Events, Messen und Kundenveranstaltungen. Welche Ansätze gibt es? Was ist Erfolg versprechend?
Schiller, Katharina; Adamsky, Florian; Benenson, Zinaida (2023)
The ACM CHI Conference on Human Factors in Computing Systems.
E-mail phishing attacks are still the number one gateway for attackers. Even when the patch level of a network is up to date, if one employee clicks on a link in a phishing e-mail and enters their credentials on a malicious website or downloads malware, the whole organization might get compromised. Anti-phishing support systems highlight different aspects of an e-mail to help users to detect phishing e-mails. However, little is known about their effectiveness, especially in comparison to each other. This paper presents our experimental design to investigate the efficacy of various support systems. For this purpose, we created a fictional scenario and an interactive tool to display e-mails. In addition, we present our preliminary study with the first results to classify test e-mails in different difficulty levels that serve as a basis for our main study.
Pahl, Sebastian; Adamsky, Florian; Kaiser, Daniel; Engel, Thomas (2023)
23rd Privacy Enhancing Technologies Symposium (PETS).
DOI: 10.56553/popets-2023-0081
Tor is a popular privacy-enhancing technology that allows anonymous communication using onion routing. However, such technologies are only helpful if used; therefore, performance is an important aspect. One of the main performance bottlenecks of Tor is the cross-circuit interference (CCI) problem. Tor multiplexes multiple circuits over a single Transport Layer Security (TLS) 1.2 connection if they share a path segment (link). Therefore, they have the same congestion window, which can yield unfair bandwidth allocation. However, there has been little work in understanding this problem in more depth.
This paper investigates the number of simultaneously shared links in the current Tor network, which are the root cause of CCI. We developed a novel shared links simulator called SALSA to investigate this problem. Our results show that 3.7 % of active links are shared, and the involving Onion Routers (ORs) have the most common bandwidth capabilities. Additionally, we show that the internal circuits and exit policy influence the CCI problem. Furthermore, we model the number of shared links when the demand grows further and show that the number of shared links can go up to 16 %. Finally, we run Shadow simulations with a 25 % downscaled Tor network and show that a network without shared links is faster.
Atzenbeck, Claus; Herder, Eelco; Roßner, Daniel (2023)
New Review of Hypermedia and Multimedia 2023, 1–35.
DOI: 10.1080/13614568.2023.2170474
Recommender Systems are omnipresent in our digital life. Most notably, various media platforms guide us in selecting videos, but recommender systems are also used for more serious goals, such as news selection, political orientation and work decisions. As argued in this survey and position article, the paradigm of recommendation-based feeds has changed user behaviour from active decision making to rather passively following recommendations and accepting possibly suboptimal choices that are deemed “good enough”. We provide a historic overview of media selection, discuss assumptions and goals of recommender systems and identify their shortcomings, based on existing literature. Then, the perspective changes to hypertext as a paradigm for structuring information and active decision making. To illustrate the relevance and importance of active decision making, we present a use case in the field of TV or media selection and (as a proof of concept) carried over to another application domain: maintenance in industry. In the discussion section, we focus on categorising these actions on a spectrum of “system-1” (fast and automated) tasks and “system-2” (critical thinking) tasks. Further, we argue how users can profit from tools that combine active (spatial) structuring and categorising with automatic recommendations, for professional tasks as well as private, leisure activities.
Wagener, Andreas (2023)
2023.
Auch wenn noch Uneinigkeit herrscht, was eigentlich genau unter dem „Metaverse“ zu verstehen ist und welche Zielvision sich auf diesen Märkten durchsetzen wird, bieten sich in den entstehenden virtuellen Welten bereits jetzt zahlreiche Möglichkeiten im eCommerce tätig zu werden. Die verschiedenen Optionen sollen hier dargestellt und zusammengefasst werden.
Neff, Michaela; Schaaf, Jannik; Scheidt, Jörg; Khouri, Andreas; Zerr, Thomas; Storf, Holger (2023)
Neff, Michaela; Schaaf, Jannik; Scheidt, Jörg; Khouri, Andreas; Zerr, Thomas...
Proceedings of Science - Austrian Citizen Science Conference (ACSC2022) 2022
, 24.
DOI: 10.22323/1.407.0024
The citizen science project SelEe (‘Researching rare diseases in a citizen science approach‘) aims to research rare diseases in collaboration with citizens by using digital applications. SelEe adopts a participatory approach as it is important to recognise the active role of patients and their families as informed partners. They are often the experts on their own disease. Similarly, involving citizens beyond those affected can increase the visibility and understanding of rare diseases. Citizens can contribute their strengths, engage socially and learn new knowledge about digital apps, the diseases and their research. Engaging citizens in a continuous exchange of information as well as developing digital applications for research can make research more accessible to citizens while strengthening research and its relevance.
Wagener, Andreas (2023)
Die Digitalisierung des Politischen, SuB - Sozialwissenschaften und Berufspraxis.
DOI: 10.1007/978-3-658-38268-1
Die großen digitalen Plattformen bestimmen nicht nur die Regeln auf ihren Märkten, sondern wirken zunehmend auch in die gesellschaftliche Sphäre ein – mit oft als äußerst schädlich empfundenen Resultaten. Gerade in jüngster Zeit werden daher verstärkt Rufe nach einer Beschränkung der Plattformmacht, nach Regulierung oder sogar Zerschlagung der dahinterstehenden Konzerne laut. Der vorliegende Beitrag führt den Stand der Diskussion zunächst zusammen und beleuchtet die aktuellen Optionen der Plattformregulierung. Die Plattformmacht hat ihren Ursprung vor allem in der Sammlung von Daten und deren algorithmischer Auswertung im Sinne der Plattformziele. Auf dieser Grundlage gelingt es erfolgreichen Plattformen, Netzeffekte zu erzeugen, welche die eigene Machtposition weiter stärken. Dieser Kreislauf scheint mit herkömmlichen Mitteln kaum zu durchbrechen zu sein. Als Alternative zu den gegenwärtigen Ansätzen staatlicher Regulierung wird ein neu zu bewertendes Eigentumsrecht an den Daten mit entsprechenden Durchsetzungsmechanismen auf Basis der Distributed-Ledger-Technologie entworfen, die sich mit dem aktuellen Stand der technischen Entwicklung bereits heute abbilden ließen.
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