In this paper we are describing our preliminary studies and proto- types for evaluating a surfer’s performance on a stationary wave. We are briefly describing the sport’s environment and development and the current state-of- the-art of machine learning based single camera tracking approaches we have evaluated and applied. The main part of the paper deals with the first implemen- tation, the tracking and the results of the evaluation of the movements of two surfers. We are closing with our lessons learned and our next steps.

The aim of the project Symotiv (http://symotiv.de) is to introduce people to classical music through interaction with a virtual orchestra. With the help of Virtual Reality, it does not only enable to immerse oneself in a three-dimensional, virtual concert hall, but also to experience images and sound from the perspective of a musician. This opened the possibility of experiencing and understanding what is happening from new spatial, but above all sonic perspectives. Therefore, we developed a workflow to capture the motions and sound of 50 musicians and the conductor by using a camera-based Machine Learning approach.

The design review process - as part of the building permit - is mandatory for numerous construction projects in Germany. The paper-based review process is currently state of the art due to the obligation of documentation by law with legally binding signatures, e.g. for the construction process.

The application of BIM in the construction industry is increasing. Though the process of model sharing is specified in EN ISO 19650-4, the integration of the design review process has not been examined using BIM yet. In the review process, it is necessary to check structural analysis and other documents, too. Hence, the process of design review using various documents shall be linked to the steps proposed in ISO 19650-4.

The authors recommend a BIM-based digitalized design review process based on ISO 19650-4. lt is shown how the template for the review process can be adjusted to legal requirements for digital proceedings and can be used for the complete life cycle of a building better than the paper-based documentation.

In this work we are describing our preliminary experimental evaluation of open-source machine learning based pose estimation solutions for tracking a surfer’s skeleton on a stationary wave. We are briefly describing the sport’s environment and development and the current state-of-the-art of machine learning based single camera 2D and 3D pose estimation solutions. The main part of the paper deals with the experiment’s setup and the interpretation of the resulting data of the movements of one surfer. We are closing with our lessons learned and our next steps. 

We present ASR Bundestag, a dataset for automatic speech recognition in German, consisting of 610 hours of aligned audio-transcript pairs for supervised training as well as 1,038 hours of unlabeled audio snippets for self-
supervised learning, based on raw audio data and transcriptions from plenary sessions and committee meetings of the German parliament. In addition, we discuss utilized approaches for the automated creation of speech datasets and assess the quality of the resulting dataset based on evaluations and finetuning of a pre-trained state of the art model. We make the dataset publicly available, including all subsets.

Das Thema Künstliche Intelligenz (KI) findet auch im Kulturmarketing immer mehr Anwendung und bietet dabei vielfältige Optimierungsmöglichkeiten. Welche Chancen und Herausforderungen damit für die operativen Aufgaben, Prozesse und notwendigen Kompetenzen im Kulturmarketing einhergehen, erklärt uns Andreas Wagener, Professor für E-Commerce und Social Media an der Hochschule Hof.

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.

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.

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.

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.

Background

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).

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.

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.

• Der Begriff des „Metaverse“ umschreibt das Zusammenwachsen von virtueller und physischer Welt. Die dahinterstehende technische Entwicklung führt zu einer Veränderung der Marktbedingungen und soll neue Geschäftsmodelle ermöglichen – auch im Bereich der Festivalökonomie. Der Text widmet sich den Chancen und Herausforderungen die das Metaverse der Veranstaltungs- und Musikbranche und dabei insbesondere dem Metal-Segment sowie den einschlägigen Festivals im Metaversum eröffnet. Der Beitrag nähert sich dem Thema konzeptionell, auf Basis einer ethnographischen Analyse von Use Cases, deren Übertragbarkeit auf diesen Kontext untersucht wird. Dabei zeigt sich, dass die Inszenierung von Live-Musik im Bereich des Metals im virtuellen Raum aktuell nur mit Einbußen des Festivalflairs und des Erlebnischarakters möglich ist, jedenfalls dann, wenn herkömmliche „physische“ Festival-Erfahrungen als Maßstab herangezogen werden. Potenziale ergeben sich jedoch durch den Vertrieb virtueller Güter und die Nutzbarmachung digitaler Services als Verlängerung der Vermarktungswertkette von Konzertevents. Insgesamt bedarf es einer medienadäquaten Inszenierung und des angemessenen Rückgriffs auf einschlägige Instrumente der virtuellen Sphäre um in diesem Kontext erfolgreich zu sein.…
• The term "metaverse" describes the merging of the virtual and physical world. The underlying technical development leads to a change in market conditions and should enable new business models - also in the area of the festival economy. The text is dedicated to the opportunities and challenges that the metaverse opens up for the event and music industry, especially for the metal segment and respective festivals. The article approaches the topic conceptually, on the basis of an ethnographic analysis of use cases, whose transferability to this context is examined. It is shown that the staging of live music in the field of metal in virtual space is currently only possible with a loss of festival flair and entertainment quality, at least if conventional "physical" festival experiences are taken as yardstick. However, there is potential in the distribution of virtual goods and the utilisation of digital services as an extension of the value chain of concert events and festivals. All in all, a media-adequate staging and the appropriate use of relevant instruments of the virtual sphere are needed to be successful in this context.