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Tracking Extended Objects with Basic Parametric Shapes using Deformable Superellipses
No full textIn extended object tracking, basic parametric shapes such as ellipses and rectangles or non-parametric shape representations such as Fourier series or Gaussian processes can be utilized as shape priors. However, flexible non-parametric shape representations can be disproportionately detailed and computationally intensive for many applications. Therefore, we propose to adopt deformable superellipses for a low-dimensional and flexible representation of basic parametric shapes in this paper. We present a measurement model in 2D space that can cope with boundary and interior measurements simultaneously by recursively estimating an artificial noise variance for interior measurements. We investigate and compare the model in a simulated and real-world maritime scenario with the result that the combination of deformable superellipses and artificial measurement noise estimation performs better than state-of-the-art methods
Development of a digital CBT-I tool for user-friendly treatment and observation of insomnia patients
No full textSufficient and regular sleep is essential for people’s physical and psychological health and a good life quality. Insomnia is one of the most frequent sleep disorders worldwide. Patients with a significant leak of sleep can also have a higher risk for depression. The main goal of this research was to create the concept of a software solution based on “Cognitive behavior therapy for insomnia” or short CBT-I, to support patients to enhance their sleep quality. But also, to make the monitoring of multiple patients more efficient and accessible, for the therapist’s side. Methods that can be quantified and are subsequently easy to automate were transferred, form CBT-I. One of the most essential components of this concept is the sleep diary, being used for the collection of the data for further processing. The PSQI questionnaire with an evaluation function was also included because it is an important tool for the therapist side. To guarantee access to the data and results for both sides, the data are stored on an online database. An internal test with 3 users confirmed a good user experience and has shown that the implementation of a user-friendly CBT-I based software solution for the simultaneous use is realizable and can provide benefits for patients and therapists. Like better monitoring and the automation of numerous proven CBT-I methods, e.g. sleep restriction or the transfer of CBT-I knowledge, making a considerable part of the process more efficient. This increase in efficiency can enable therapists to treat more patients simultaneously, while maintaining the same level of quality
The Path to Innovation: Exploring the Interplay of Multiple Corporate Entrepreneurship Units
No full textCorporate entrepreneurship (CE) is pivotal for innovation in established organizations. This study investigates the use of multiple Corporate Entrepreneurship Units (CEUs) within companies. Drawing on a multi-case study of three German companies, we explore the structural configurations, resource provisions, and sequential utilization patterns of co-specialized CEUs. Findings reveal diverse CEU configurations and types, highlighting their roles in providing resources and facilitating innovation flows. Our research provides actionable insights for organizations navigating the complex landscape of CE, offering a deeper understanding of CEU coordination. This study contributes to filling the gap in empirical research on multiple CEUs, setting a foundation for future investigations
Strengthening Customer Loyalty and Enhancing Resilience via Self-Service
No full textDigital transformation is changing the service landscape and confronting companies with challenges such as staff shortages and changing customer behavior. This paper examines the impact of self-service options on customer perceptions and their potential to improve a company’s resilience. The empirical study conducted for this purpose with 400 participants from different age groups, but with a focus on Generation Z, shows that almost all respondents have encountered self-service at some point, with the retail, tourism and financial sectors leading in usage. About 90% of respondents use self-service several times a month. While all generations value time savings and convenience, older participants express more concerns about errors, lack of support and privacy. The study highlights the increasing prevalence of self-service, particularly among young people, and their positive perceptions. Self-service solutions offer businesses the ability to address challenges, engage with customers and streamline processes. The positive impact extends not only to B2C processes, but also allows conclusions to be drawn about the positive influence of self-service options in internal and external B2B activities such as order management and customer support
Individual Dynamic Real-Time Range Queries in Adaptive Quad Streaming
No full textDynamic Real-Time Range Queries (DRRQ) are widely used to discover local context between mobile clients in high-density areas where both clients requested by the query and inquirers are mobile. Unlike the very well-known continuous range queries only a few approaches such as Adaptive Quad Streaming (AQS) address scalability and real-time requirements that are important for ad-hoc mobility challenges in fully distributed client networks. In this paper we address fundamental limitations of AQS presenting the new lightweight AQSdynamic which supports arbitrary, individual, and time-dependent range query shapes instead of fixed circular ones, thus covering much more realistic scenarios. More important, AQSdynamic combines the decentralized streaming approach of AQS with "subscriptions"guaranteeing a real-time behavior with constant complexity with to the number of clients
IT-Compliance in KMU – Eine Methode zum angepassten Einsatz von Rahmenwerken
Full text linkDie digitale Transformation von Geschäftsprozessen und die stärkere Integration von IT-Systemen führen zu Chancen und Risiken für kleine und mittlere Unternehmen (KMU). Risiken, die zu fehlender IT-Governance, Risk und Compliance (GRC) führen können. Ziel dieses Beitrags ist es, die Design- und Evaluierungsphase der Erstellung eines Artefakts darzustellen. Dabei wird der Design Science Research Ansatz nach Hevner verwendet. Das Artefakt wird für die Auswahl von Standards entwickelt, indem KMU-relevante Ausprägungen und bestehende Rahmenwerke auf die definierten Kriterien angepasst werden.The digital transformation of business processes and the integration of IT systems leads to opportunities and risks for small and medium-sized enterprises (SMEs). Risks that can result in a lack of IT Governance, Risk and Compliance (GRC). The purpose of this paper is to present the Design and Evaluation phase of creating an artefact, to reduce these risks. With this, the Design Science Research approach based on Hevner is using. The artefact will be developed by selecting relevant existing frameworks and the identification of SME-specific conditions
Citizen Development als Treiber der digitalen Transformation
Full text linkLow-Code Development Plattformen (LCDPs) fördern die digitale Transformation von Organisationen, indem sie die Applikationsentwicklung durch FachbereichsmitarbeiterInnen ohne tiefgreifende Programmierkenntnisse – sogenannte Citizen Developer – ermöglichen. Marktforschungsinstitute prognostizieren, dass in den nächsten Jahren mehr als die Hälfte aller Applikationen mit LCDPs entwickelt werden. Nichtsdestotrotz stehen Organisationen vor der Herausforderung, sich für die richtigen Implementierungs- und Anwendungsansätze von LCDPs zu entscheiden. Dieser Artikel liefert daher ein umfassendes Bild über das praktische Verständnis und aktuelle Ansätze in verschiedenen Organisationen und leitet daraus Handlungsempfehlungen ab. Dafür wurden 16 Experteninterviews durchgeführt und wissenschaftlich analysiert. Die Ergebnisse zeigen, dass die Praxis grundsätzlich ein ähnliches Verständnis des Begriffs LCDP hat. Die Initiative für die Einführung kommt meist aus den Fachbereichen, die Entscheidung für oder gegen die LCDP-Implementierung wird jedoch meist von der Geschäftsführung in Kooperation mit der IT-Abteilung getroffen. Dabei unterscheiden sich die aktuellen Anwendungsansätze: Unternehmen nutzen entweder einen Self-Service-Ansatz durch die Fachbereiche oder integrieren die Entscheidung über eine potenzielle LCDP-Entwicklung durch die Citizen Developer in das bestehende Demand-Management der IT-Abteilung. Eine etablierte und adaptive Governance ist für beide Ansätze eine wichtige Voraussetzung. Die Erkenntnisse des Beitrags tragen zur wissenschaftlichen Diskussion bei, da dieser Artikel eine der ersten umfassenden und wissenschaftlich fundierten qualitativen Analysen über aktuelle praktische Adoptionsansätze der Praxis liefert. PraktikerInnen erfahren zudem, wie andere Unternehmen mit aktuellen Herausforderungen umgehen und welche Ansätze erfolgversprechend sind
Calibration of a Mirror Enhanced 2D-Lidar for Ground-Detection
No full textIncreasing the perception mechanism of robotic systems, and therefore their level of autonomy, is a challenging task, particularly when production costs must be maintained at a minimum. To enhance the autonomous capabilities of Autonomous Mobile Robots (AMRs) without increasing production costs, we propose a novel 2D-Lidar mirror combination with a main focus on the calibration procedure and the resulting performance figures. This approach leverages precise calibration to enhance the robot’s perception without the necessity of adding costly sensors such as 3D-Lidars, thereby maintaining affordability while simultaneously increasing the effectiveness of 2D-Lidar sensors