860 research outputs found
Safety of autonomous vehicles: A survey on Model-based vs. AI-based approaches
The growing advancements in Autonomous Vehicles (AVs) have emphasized the
critical need to prioritize the absolute safety of AV maneuvers, especially in
dynamic and unpredictable environments or situations. This objective becomes
even more challenging due to the uniqueness of every traffic
situation/condition. To cope with all these very constrained and complex
configurations, AVs must have appropriate control architectures with reliable
and real-time Risk Assessment and Management Strategies (RAMS). These targeted
RAMS must lead to reduce drastically the navigation risks. However, the lack of
safety guarantees proves, which is one of the key challenges to be addressed,
limit drastically the ambition to introduce more broadly AVs on our roads and
restrict the use of AVs to very limited use cases. Therefore, the focus and the
ambition of this paper is to survey research on autonomous vehicles while
focusing on the important topic of safety guarantee of AVs. For this purpose,
it is proposed to review research on relevant methods and concepts defining an
overall control architecture for AVs, with an emphasis on the safety assessment
and decision-making systems composing these architectures. Moreover, it is
intended through this reviewing process to highlight researches that use either
model-based methods or AI-based approaches. This is performed while emphasizing
the strengths and weaknesses of each methodology and investigating the research
that proposes a comprehensive multi-modal design that combines model-based and
AI approaches. This paper ends with discussions on the methods used to
guarantee the safety of AVs namely: safety verification techniques and the
standardization/generalization of safety frameworks
Development of a R package to facilitate the learning of clustering techniques
This project explores the development of a tool, in the form of a R package, to ease the process of
learning clustering techniques, how they work and what their pros and cons are. This tool should provide
implementations for several different clustering techniques with explanations in order to allow the student
to get familiar with the characteristics of each algorithm by testing them against several different datasets
while deepening their understanding of them through the explanations. Additionally, these explanations
should adapt to the input data, making the tool not only adept for self-regulated learning but for teaching
too.Grado en IngenierÃa Informátic
Collaboration in higher education: a new ecology of practice
Collaboration in Higher Education focuses on the opportunities and challenges created by engaging in collaboration and partnership in higher education. As higher education institutions become ever more competitive to sustain their place in a global, neoliberal education market, students and staff are confronted with alienating practices. Such practices create an individualistic, audit and surveillance culture that is exacerbated by the recent COVID-19 pandemic and the wholesale 'pivot' to online teaching. In this atomised and competitive climate, this volume synthesises theoretical perspectives and current practice to present case study examples that advocate for a more inclusive, cooperative, collaborative, compassionate and empowering education, one that sees learning and teaching as a practice that enables personal, collective and societal growth. The human element of education is at the core of this book, focusing on what we can do and achieve together: students, academic staff, higher education institutions and relevant stakeholder
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‘Nothing new under the sun’: literary allusion, intertextuality, and lyrical performative stylistic allusion in hip hop lyricism
This critical-creative thesis explores how several rap artists from key eras in hip hop culture have utilised the techniques of literary allusion and intertextuality to impact their work in multiple meaningful ways. The creative component of the thesis (comprising a trilogy of rap LPs) provides a template/framework for future research in these areas through a practice-based, creative-led focus on the use of intertextuality in rap to identify and artistically illustrate the sophisticated uses of these techniques. Case studies included in this thesis focus on: Nas’s use of creative patrilineage (Higgins, 2007) to form modes of lyrical transcendence, epistolic legacy, and religious and thematic allusion (Ch. 1); Kendrick Lamar’s engagement with intertextuality to explore loss and trauma, and his revision of the postmortem sampling trope (Williams, 2013) (Ch. 2); and the technique of lyrical performative stylistic allusion through the lyrics of J.I.D., Kemba, Saba, Earl Sweatshirt, and MIKE and Navy Blue (Ch. 3).
Whilst intertextuality in hip hop has been defined in recent years (e.g., Williams, 2013; Diallo, 2015), academic research into how it (alongside literary allusion specifically, and the innovative technique of lyrical performative stylistic allusion) is employed artistically to translate modes of vulnerability such as trauma and grief and affect methods of personal and communal catharsis is limited. Using my own understandings and experiences of loss and trauma, I extend this research by providing a critically-informed personal artistic reflection into universal aspects of the male experience, men’s mental health, and masculinity in contemporary society
The Plastics Collection Reference Packet
This reference packet is an informational tool to support further research into the history of plastics—whether interested in companies, individuals within the plastics industry\u27s history, historical plastics materials, essays, and more. All content featured within this packet was previously published on the former plastics.syr.edu website as part of a Syracuse University Libraries and Special Collections Research Center (SCRC) partnership established in 2007 with the Plastics Pioneers Association (PPA)—an association of plastics industry professionals interested in preserving the plastics industry\u27s past
Dual Loop Rider Control of a Dynamic Motorcycle Riding Simulator
Compared to the automotive industry, the use of simulators in the motorcycle domain is negligible as for their lack of usability and accessibility. According to the state-of-the-art, it is e.g. not possible for motorcyclists to intuitively control a high-fidelity dynamic motorcycle riding simulator when getting in contact with it for the first time. There are four main reasons for the insufficient simulation quality of dynamic motorcycle riding simulators:
â–ª The instability of single-track vehicles at low speed,
â–ª The steering force-feedback with highly velocity-dependent behavior,
â–ª Motion-simulation (high dynamics, roll angle, direct contact to the environment),
â–ª The specific influence of the rider to vehicle dynamics (incl. rider motion).
The last bullet point is peculiar for motorcycles and dynamic motorcycle riding simulators in comparison with other vehicle simulators, as motorcycles are significantly affected in their dynamics by the rider’s body motion. However, up until today, almost no special emphasis has been put on the consideration of rider motion on dynamic motorcycle riding simulators.
In this thesis, a motorcycle riding simulator is designed, constructed and put into operation. The focus here is attaching a real rider to a virtual motorcycle. Based on a commercially available multi-body-simulation model, a simulator architecture is designed, that allows to control the virtual motorcycle not only by steering, but by rider leaning as well. This is realized by determining the so-called rider induced roll torque, that allows a holistic measurement of the apparent coupling forces between rider and simulator mockup.
Performance measures and study concepts are developed that allow to rate the system. In expert and participant studies, the influence of the system on the riding behavior of the simulator is investigated. It is shown that the rider motion determination allows realistic control inputs and has a positive effect on the stabilization at various velocities. The feedback of the rider induced roll torque to the virtual dynamics model allows study participants to control the virtual motorcycle more intuitively. The vehicle states during cornering are affected as expected from real riding. First results indicate that it becomes easier for naïve study participants to access the simulator in first-contact scenarios. The achieved improvements regarding the rideability of the simulator however do not suffice to overcome the abovementioned challenges to a degree that allows for a completely intuitive interaction with the simulator throughout the whole dynamic range
Technology and Management Applied in Construction Engineering Projects
This book focuses on fundamental and applied research on construction project management. It presents research papers and practice-oriented papers. The execution of construction projects is specific and particularly difficult because each implementation is a unique, complex, and dynamic process that consists of several or more subprocesses that are related to each other, in which various aspects of the investment process participate. Therefore, there is still a vital need to study, research, and conclude the engineering technology and management applied in construction projects. This book present unanimous research approach is a result of many years of studies, conducted by 35 well experienced authors. The common subject of research concerns the development of methods and tools for modeling multi-criteria processes in construction engineering
LIPIcs, Volume 258, SoCG 2023, Complete Volume
LIPIcs, Volume 258, SoCG 2023, Complete Volum
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