Tootfinder

Threat Modeling on a Virtual Factory Floor https://claroty.com/team82/research/threat-modeling-industrial-environments-using-virtual-factories-part-1

Threat Modeling on a Virtual Factory Floor https://claroty.com/team82/research/threat-modeling-industrial-environments-using-virtual-factories-part-1

Understanding and Mitigating Harmful Design in User-Generated Virtual Worlds
Zinan Zhang, Xinning Gui, Yubo Kou
https://arxiv.org/abs/2405.05922 https://…

Understanding and Mitigating Harmful Design in User-Generated Virtual Worlds
Virtual space offers innovative ways for individuals to engage with one another in a digital setting. Prominent virtual social platforms, such as Facebook Spaces, VR Chat, and AltspaceVR, facilitate social connections, allowing users to interact seamlessly. Additionally, certain video games, like Second Life and World of Warcraft, are set within these virtual spaces as well, providing immersive player experiences. As the popularity of virtual space grows, various companies have begun to democra…

💥 Understanding Physical Breakdowns in Virtual Reality
#vr #technology

Understanding Physical Breakdowns in Virtual Reality
Virtual Reality (VR) moves away from well-controlled laboratory environments into public and personal spaces. As users are visually disconnected from the physical environment, interacting in an uncontrolled space frequently leads to collisions and raises safety concerns. In my thesis, I investigate this phenomenon which I define as the physical breakdown in VR. The goal is to understand the reasons for physical breakdowns, provide solutions, and explore future mechanisms that could perpetuate s…

Ichiro Suzuki is a virtual lock for Cooperstown. He’s already spent lots of time there
#MLB #Baseball #KenRosenthal

@… Thought you might be interested in this, since you've done some work in VR space.
https://www.dompajak.com/blog/webxr-beeb-virtual-beeb/index.html

This https://arxiv.org/abs/2308.10289 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_ees…

Parameter Estimation-Based States Reconstruction of Uncertain Linear Systems with Overparameterization and Unknown Additive Perturbations
The problem of state reconstruction is considered for uncertain linear time-invariant systems with overparameterization, arbitrary state-space matrices and unknown additive perturbation described by an exosystem. A novel adaptive observer is proposed to solve it, which, unlike known solutions, simultaneously: (i) reconstructs the physical state of the original system rather than the virtual state of its observer canonical form, (ii) ensures exponential convergence of the reconstruction error to…

Collaborative Ground-Space Communications via Evolutionary Multi-objective Deep Reinforcement Learning
Jiahui Li, Geng Sun, Qingqing Wu, Dusit Niyato, Jiawen Kang, Abbas Jamalipour, Victor C. M. Leung
https://arxiv.org/abs/2404.07450

Collaborative Ground-Space Communications via Evolutionary Multi-objective Deep Reinforcement Learning
In this paper, we propose a distributed collaborative beamforming (DCB)-based uplink communication paradigm for enabling ground-space direct communications. Specifically, DCB treats the terminals that are unable to establish efficient direct connections with the low Earth orbit (LEO) satellites as distributed antennas, forming a virtual antenna array to enhance the terminal-to-satellite uplink achievable rates and durations. However, such systems need multiple trade-off policies that variously …

Mixed virtual element approximation for the five-field formulation of the steady Boussinesq problem with temperature-dependent parameters
Zeinab Gharibi
https://arxiv.org/abs/2403.07173

Mixed virtual element approximation for the five-field formulation of the steady Boussinesq problem with temperature-dependent parameters
In this work, we develop recent research on the fully mixed virtual element method (mixed-VEM) based on the Banach space for the stationary Boussinesq equation to suggest and analyze a new mixed-VEM for the stationary two-dimensional Boussinesq equation with temperature-dependent parameters in terms of the pseudostress, vorticity, velocity, pseudoheat vector and temperature fields. The well-posedness of the continuous formulation is analyzed utilizing a fixed-point strategy, a smallness assumpt…

Understanding and Mitigating Harmful Design in User-Generated Virtual Worlds
Zinan Zhang, Xinning Gui, Yubo Kou
https://arxiv.org/abs/2405.05922 https://…

Understanding and Mitigating Harmful Design in User-Generated Virtual Worlds
Virtual space offers innovative ways for individuals to engage with one another in a digital setting. Prominent virtual social platforms, such as Facebook Spaces, VR Chat, and AltspaceVR, facilitate social connections, allowing users to interact seamlessly. Additionally, certain video games, like Second Life and World of Warcraft, are set within these virtual spaces as well, providing immersive player experiences. As the popularity of virtual space grows, various companies have begun to democra…

The one-year MSc / MRes programme I teach on at the #BartlettSchoolOfArchitecture #UCL called 'Space Syntax: Architecture and Cities' is holding an online open event for prospective students on 27 March, 1-2pm UK time.
Students from a non-architectural background are v…

Graduate Open Event | Space Syntax: Architecture and Cities MSc/MRes
Join course leader Professor Kayvan Karimi for this live virtual presentation and Q&A to find out more about studying Space Syntax.

This https://arxiv.org/abs/2308.10289 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_ees…

Parameter Estimation-Based States Reconstruction of Uncertain Linear Systems with Overparameterization and Unknown Additive Perturbations
The problem of state reconstruction is considered for uncertain linear time-invariant systems with overparameterization, arbitrary state-space matrices and unknown additive perturbation described by an exosystem. A novel adaptive observer is proposed to solve it, which, unlike known solutions, simultaneously: (i) reconstructs the physical state of the original system rather than the virtual state of its observer canonical form, (ii) ensures exponential convergence of the reconstruction error to…

This https://arxiv.org/abs/2307.10358 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qu…

Virtual mitigation of coherent non-adiabatic transitions by echo verification
Transitions out of the ground space limit the performance of quantum adiabatic algorithms, while hardware imperfections impose stringent limitations on the circuit depth. We propose an adiabatic echo verification protocol which mitigates both coherent and incoherent errors, arising from non-adiabatic transitions and hardware noise, respectively. Quasi-adiabatically evolving forward and backwards allows for an echo-verified measurement of any observable. In addition to mitigating hardware noise,…

ZSMILES: an approach for efficient SMILES storage for random access in Virtual Screening
Gianmarco Accordi, Davide Gadioli, Giorgio Seguini, Andrea R. Beccari, Gianluca Palermo
https://arxiv.org/abs/2404.19391

ZSMILES: an approach for efficient SMILES storage for random access in Virtual Screening
Virtual screening is a technique used in drug discovery to select the most promising molecules to test in a lab. To perform virtual screening, we need a large set of molecules as input, and storing these molecules can become an issue. In fact, extreme-scale high-throughput virtual screening applications require a big dataset of input molecules and produce an even bigger dataset as output. These molecules' databases occupy tens of TB of storage space, and domain experts frequently sample a small…

This https://arxiv.org/abs/2304.10541 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csHC_…

Modular 3D Interface Design for Accessible VR Applications
Designed with an accessible first design approach, the presented paper describes how exploiting humans proprioception ability in 3D space can result in a more natural interaction experience when using a 3D graphical user interface in a virtual environment. The modularity of the designed interface empowers the user to decide where they want to place interface elements in 3D space allowing for a highly customizable experience, both in the context of the player and the virtual space. Drawing inspi…

Virtual walks and phase transitions in two dimensional BChS model with extreme switches
Kathakali Biswas, Parongama Sen
https://arxiv.org/abs/2403.03556 ht…

Virtual walks and phase transitions in two dimensional BChS model with extreme switches
We have studied a walk in a one-dimensional virtual space corresponding to an extended version of the three-state BChS model of opinion formation, originally proposed in Physica A {\bf 391}, 3257 (2012), in which the agents are located on a two dimensional lattice. The opinions are designated by the values $\pm1$ and zero. Here we also consider switches between the extreme states $\pm 1$. The model involves two noise parameters representing the fraction of negative interactions $p$ and the prob…

This https://arxiv.org/abs/2006.16530 has been replaced.
link: https://scholar.google.com/scholar?q=a

Moduli spaces of semistable pairs on projective Deligne-Mumford stacks
We generalize the construction of a moduli space of semistable pairs parametrizing isomorphism classes of morphisms from a fixed coherent sheaf to any sheaf with fixed Hilbert polynomial under a notion of stability to the case of projective Deligne-Mumford stacks. We study the deformation and obstruction theories of stable pairs, and then prove the existence of virtual fundamental classes for some cases of dimension two and three. This leads to a definition of Pandharipande-Thomas invariants on…

Safeguarding People's Financial Health in Metaverse with Emotionally Intelligent Virtual Buddy
Syed Ali Asif, Emma Cao, Hang Chen, Chien-Chung Shen, Yan-Ming Chiou
https://arxiv.org/abs/2405.05918

Safeguarding People's Financial Health in Metaverse with Emotionally Intelligent Virtual Buddy
The Metaverse, an immersive virtual world, has emerged as a shared space where people engage in various activities ranging from social interactions to commerce. Cryptocurrencies [3] and Non-Fungible Tokens (NFTs) [6] play pivotal roles within this virtual realm, reshaping interactions and transactions. Cryptocurrencies, utilizing cryptographic techniques for security, enable decentralized and secure transactions, and NFTs represent ownership or proof of authenticity of unique digital assets thr…

Safeguarding People's Financial Health in Metaverse with Emotionally Intelligent Virtual Buddy
Syed Ali Asif, Emma Cao, Hang Chen, Chien-Chung Shen, Yan-Ming Chiou
https://arxiv.org/abs/2405.05918

Safeguarding People's Financial Health in Metaverse with Emotionally Intelligent Virtual Buddy
The Metaverse, an immersive virtual world, has emerged as a shared space where people engage in various activities ranging from social interactions to commerce. Cryptocurrencies [3] and Non-Fungible Tokens (NFTs) [6] play pivotal roles within this virtual realm, reshaping interactions and transactions. Cryptocurrencies, utilizing cryptographic techniques for security, enable decentralized and secure transactions, and NFTs represent ownership or proof of authenticity of unique digital assets thr…

ZSMILES: an approach for efficient SMILES storage for random access in Virtual Screening
Gianmarco Accordi, Davide Gadioli, Giorgio Seguini, Andrea R. Beccari, Gianluca Palermo
https://arxiv.org/abs/2404.19391

ZSMILES: an approach for efficient SMILES storage for random access in Virtual Screening
Virtual screening is a technique used in drug discovery to select the most promising molecules to test in a lab. To perform virtual screening, we need a large set of molecules as input, and storing these molecules can become an issue. In fact, extreme-scale high-throughput virtual screening applications require a big dataset of input molecules and produce an even bigger dataset as output. These molecules' databases occupy tens of TB of storage space, and domain experts frequently sample a small…

Distributed Radiance Fields for Edge Video Compression and Metaverse Integration in Autonomous Driving
Eugen \v{S}lapak, Mat\'u\v{s} Dopiriak, Mohammad Abdullah Al Faruque, Juraj Gazda, Marco Levorato
https://arxiv.org/abs/2402.14642

Distributed Radiance Fields for Edge Video Compression and Metaverse Integration in Autonomous Driving
The metaverse is a virtual space that combines physical and digital elements, creating immersive and connected digital worlds. For autonomous mobility, it enables new possibilities with edge computing and digital twins (DTs) that offer virtual prototyping, prediction, and more. DTs can be created with 3D scene reconstruction methods that capture the real world's geometry, appearance, and dynamics. However, sending data for real-time DT updates in the metaverse, such as camera images and videos …

Explicit sharbly cycles at the virtual cohomological dimension for SL_n(Z)
Avner Ash, Paul E. Gunnells, Mark McConnell
https://arxiv.org/abs/2402.14153 htt…

Explicit sharbly cycles at the virtual cohomological dimension for SL_n(Z)
Denote the virtual cohomological dimension of SL_n(Z) by t=n(n-1)/2. Let St denote the Steinberg module of SL_n(Q) tensored with Q. Let Sh_* denote the sharbly resolution of the Steinberg module St. By Borel-Serre duality, the one-dimensional Q-vector space H^0(SL_n(Z), Q) is isomorphic to H_t(SL_n(Z),St). We find an explicit generator of H_t(SL_n(Z),St) in terms of sharbly cycles and cosharbly cocycles. These methods may extend to other degrees of cohomology of SL_n(Z).

Joint Reference Frame Synthesis and Post Filter Enhancement for Versatile Video Coding
Weijie Bao, Yuantong Zhang, Jianghao Jia, Zhenzhong Chen, Shan Liu
https://arxiv.org/abs/2404.18058 https://arxiv.org/pdf/2404.18058
arXiv:2404.18058v1 Announce Type: new
Abstract: This paper presents the joint reference frame synthesis (RFS) and post-processing filter enhancement (PFE) for Versatile Video Coding (VVC), aiming to explore the combination of different neural network-based video coding (NNVC) tools to better utilize the hierarchical bi-directional coding structure of VVC. Both RFS and PFE utilize the Space-Time Enhancement Network (STENet), which receives two input frames with artifacts and produces two enhanced frames with suppressed artifacts, along with an intermediate synthesized frame. STENet comprises two pipelines, the synthesis pipeline and the enhancement pipeline, tailored for different purposes. During RFS, two reconstructed frames are sent into STENet's synthesis pipeline to synthesize a virtual reference frame, similar to the current to-be-coded frame. The synthesized frame serves as an additional reference frame inserted into the reference picture list (RPL). During PFE, two reconstructed frames are fed into STENet's enhancement pipeline to alleviate their artifacts and distortions, resulting in enhanced frames with reduced artifacts and distortions. To reduce inference complexity, we propose joint inference of RFS and PFE (JISE), achieved through a single execution of STENet. Integrated into the VVC reference software VTM-15.0, RFS, PFE, and JISE are coordinated within a novel Space-Time Enhancement Window (STEW) under Random Access (RA) configuration. The proposed method could achieve -7.34%/-17.21%/-16.65% PSNR-based BD-rate on average for three components under RA configuration.

Principle of virtual action in continuum mechanics
Henri Gouin (AMU, IUSTI)
https://arxiv.org/abs/2403.20076 https://arxiv.org/pdf/24…

Principle of virtual action in continuum mechanics
We present the principle of virtual action as a foundation of continuum mechanics. Used mainly in relativity, the method has a useful application in classical mechanics and places the notion of action as the basic concept of dynamics. The principle is an extension of virtual work to space-time. It extends the efforts made by d'Alembert and Lagrange. Unlike the classical case of equilibrium, the principle of virtual action becomes a postulate for the formulation of models in dynamics. It a…

This https://arxiv.org/abs/2304.09914 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCY_…

The Face of Populism: Examining Differences in Facial Emotional Expressions of Political Leaders Using Machine Learning
Online media has revolutionized the way political information is disseminated and consumed on a global scale, and this shift has compelled political figures to adopt new strategies of capturing and retaining voter attention. These strategies often rely on emotional persuasion and appeal, and as visual content becomes increasingly prevalent in virtual space, much of political communication too has come to be marked by evocative video content and imagery. The present paper offers a novel approach…

This https://arxiv.org/abs/2401.16825 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csMM_…

Smart Fitting Room: A One-stop Framework for Matching-aware Virtual Try-on
The development of virtual try-on has revolutionized online shopping by allowing customers to visualize themselves in various fashion items, thus extending the in-store try-on experience to the cyber space. Although virtual try-on has attracted considerable research initiatives, existing systems only focus on the quality of image generation, overlooking whether the fashion item is a good match to the given person and clothes. Recognizing this gap, we propose to design a one-stop Smart Fitting R…

Nodal auxiliary space preconditioners for mixed virtual element methods
Wietse Boon, Erik Nilsson
https://arxiv.org/abs/2404.12823 https://

Nodal auxiliary space preconditioners for mixed virtual element methods
We propose nodal auxiliary space preconditioners for facet and edge virtual elements of lowest order by deriving discrete regular decompositions on polytopal grids and generalizing the Hiptmair-Xu preconditioner to the virtual element framework. The preconditioner consists of solving a sequence of elliptic problems on the nodal virtual element space, combined with appropriate smoother steps. Under assumed regularity of the mesh, the preconditioned system is proven to have bounded spectral condi…

This https://arxiv.org/abs/2308.12424 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Virtual states in the coupled-channel problems with an improved complex scaling method
We improve the complex scaling method (CSM) to obtain virtual states, which were previously challenging in the conventional CSM. Our approach solves the Schrödinger equation in the momentum space as an eigenvalue problem by choosing the flexible contours. It proves to be highly effective in identifying the poles across the different Riemann sheets in the multichannel scatterings. It is more straightforward and efficient than searching for the zeros of the Fredholm determinant of the Lippmann-S…

Design-Space Exploration of SNN Models using Application-Specific Multi-Core Architectures
Sanaullah, Shamini Koravuna, Ulrich R\"uckert, Thorsten Jungeblut
https://arxiv.org/abs/2403.12061

Design-Space Exploration of SNN Models using Application-Specific Multi-Core Architectures
With the motivation and the difficulties that currently exist in comprehending and utilizing the promising features of SNNs, we proposed a novel run-time multi-core architecture-based simulator called "RAVSim" (Runtime Analysis and Visualization Simulator), a cutting-edge SNN simulator, developed using LabVIEW and it is publicly available on their website as an official module. RAVSim is a runtime virtual simulation environment tool that enables the user to interact with the model, observe its …

This https://arxiv.org/abs/2303.15187 has been replaced.
link: https://scholar.google.com/scholar?q=a

Avatarm: an Avatar With Manipulation Capabilities for the Physical Metaverse
Metaverse is an immersive shared space that remote users can access through virtual and augmented reality interfaces, enabling their avatars to interact with each other and the surrounding. Although digital objects can be manipulated, physical objects cannot be touched, grasped, or moved within the metaverse due to the lack of a suitable interface. This work proposes a solution to overcome this limitation by introducing the concept of a Physical Metaverse enabled by a new interface named "Avata…

Effects of Multisensory Feedback on the Perception and Performance of Virtual Reality Hand-Retargeted Interaction
Hyunyoung Jang, Jinwook Kim, Jeongmi Lee
https://arxiv.org/abs/2404.03899

Effects of Multisensory Feedback on the Perception and Performance of Virtual Reality Hand-Retargeted Interaction
Retargeting methods that modify the visual representation of real movements have been widely used to expand the interaction space and create engaging virtual reality experiences. For optimal user experience and performance, it is essential to specify the perception of retargeting and utilize the appropriate range of modification parameters. However, previous studies mostly concentrated on whether users perceived the target sense or not and rarely examined the perceptual accuracy and sensitivity…

Virtual Cylindrical PET for Efficient DOI Image Reconstruction with Sub-millimetre Resolution
Francisco E Enr\'iquez-Mier-y-Ter\'an, Andre Z Kyme, Georgios Angelis, Steven R Meikle
https://arxiv.org/abs/2403.16465

Virtual Cylindrical PET for Efficient DOI Image Reconstruction with Sub-millimetre Resolution
Objective: Image reconstruction in high resolution PET scanners with depth of interaction (DOI) capability is computationally challenging due to the high sampling in detector and image space. This study evaluates the use of a virtual cylinder to reduce the number of lines of response (LOR) for DOI-based reconstruction while maintaining uniform sub-millimetre spatial resolution. Approach: Virtual geometry was investigated using the awake animal mousePET as a test case. Using GATE, we simulated t…

This https://arxiv.org/abs/2403.15427 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_ees…

Metasurface-Enabled Multifunctional Single-Frequency Sensors without External Power
IoT sensors are crucial for visualizing multidimensional and multimodal information and enabling future IT applications/services such as cyber-physical space, digital twins, autonomous driving, smart cities, and virtual/augmented reality (VR or AR). However, IoT sensors need to be battery-free to realistically manage and maintain the growing number of available sensing devices. Here, we provide a novel sensor design approach that employs metasurfaces to enable multifunctional sensing without re…

Explicit sharbly cycles at the virtual cohomological dimension for SL_n(Z)
Avner Ash, Paul E. Gunnells, Mark McConnell
https://arxiv.org/abs/2402.14153 htt…

Explicit sharbly cycles at the virtual cohomological dimension for SL_n(Z)
Denote the virtual cohomological dimension of SL_n(Z) by t=n(n-1)/2. Let St denote the Steinberg module of SL_n(Q) tensored with Q. Let Sh_* denote the sharbly resolution of the Steinberg module St. By Borel-Serre duality, the one-dimensional Q-vector space H^0(SL_n(Z), Q) is isomorphic to H_t(SL_n(Z),St). We find an explicit generator of H_t(SL_n(Z),St) in terms of sharbly cycles and cosharbly cocycles. These methods may extend to other degrees of cohomology of SL_n(Z).

This https://arxiv.org/abs/2211.15719 has been replaced.
link: https://scholar.google.com/scholar?q=a

Universality for tropical and logarithmic maps
We prove that every toric monoid appears in a space of maps from tropical curves to an orthant. It follows that spaces of logarithmic maps to Artin fans exhibit arbitrary toric singularities: a virtual universality theorem for logarithmic maps to pairs. The target rank depends on the chosen singularity: we show that the cone over the 7-gon never appears in a space of maps to a rank-1 target. We obtain similar results for tropical maps to affine space.

This https://arxiv.org/abs/1908.00379 has been replaced.
link: https://scholar.google.com/scholar?q=a

Outstanding: A Multi-Perspective Travel Approach for Virtual Reality Games
In virtual reality games, players dive into fictional environments and can experience a compelling and immersive world. State-of-the-art VR systems allow for natural and intuitive navigation through physical walking. However, the tracking space is still limited, and viable alternatives are required to reach further virtual destinations. Our work focuses on the exploration of vast open worlds - an area where existing local navigation approaches such as the arc-based teleport are not ideally suit…

This https://arxiv.org/abs/2402.02902 has been replaced.
link: https://scholar.google.com/scholar?q=a

The eXtended Virtual Element Method for elliptic problems with weakly singular solutions
This paper introduces a novel eXtended virtual element method, an extension of the conforming virtual element method. The XVEM is formulated by incorporating appropriate enrichment functions in the local spaces. The method is designed to handle highly generic enrichment functions, including singularities arising from fractured domains. By achieving consistency on the enrichment space, the method is proven to achieve arbitrary approximation orders even in the presence of singular solutions. The …

Integrating SystemC-AMS Power Modeling with a RISC-V ISS for Virtual Prototyping of Battery-operated Embedded Devices
Mohamed Amine Hamdi, Giovanni Pollo, Matteo Risso, Germain Haugou, Alessio Burrello, Enrico Macii, Massimo Poncino, Sara Vinco, Daniele Jahier Pagliari
https://arxiv.org/abs/2404.01861

Integrating SystemC-AMS Power Modeling with a RISC-V ISS for Virtual Prototyping of Battery-operated Embedded Devices
RISC-V cores have gained a lot of popularity over the last few years. However, being quite a recent and novel technology, there is still a gap in the availability of comprehensive simulation frameworks for RISC-V that cover both the functional and extra-functional aspects. This gap hinders progress in the field, as fast yet accurate system-level simulation is crucial for Design Space Exploration (DSE). This work presents an open-source framework designed to tackle this challenge, integrating …

This https://arxiv.org/abs/2012.07724 has been replaced.
link: https://scholar.google.com/scholar?q=a

Inscribable fans I: Inscribed cones and virtual polytopes
We investigate polytopes inscribed into a sphere that are normally equivalent (or strongly isomorphic) to a given polytope $P$. We show that the associated space of polytopes, called the inscribed cone of $P$, is closed under Minkowski addition. Inscribed cones are interpreted as type cones of ideal hyperbolic polytopes and as deformation spaces of Delaunay subdivisions. In particular, testing if there is an inscribed polytope normally equivalent to $P$ is polynomial time solvable. Normal equ…

Exploratory Landscape Analysis for Mixed-Variable Problems
Raphael Patrick Prager, Heike Trautmann
https://arxiv.org/abs/2402.16467 https://arxiv.org/pdf/2402.16467
arXiv:2402.16467v1 Announce Type: new
Abstract: Exploratory landscape analysis and fitness landscape analysis in general have been pivotal in facilitating problem understanding, algorithm design and endeavors such as automated algorithm selection and configuration. These techniques have largely been limited to search spaces of a single domain. In this work, we provide the means to compute exploratory landscape features for mixed-variable problems where the decision space is a mixture of continuous, binary, integer, and categorical variables. This is achieved by utilizing existing encoding techniques originating from machine learning. We provide a comprehensive juxtaposition of the results based on these different techniques. To further highlight their merit for practical applications, we design and conduct an automated algorithm selection study based on a hyperparameter optimization benchmark suite. We derive a meaningful compartmentalization of these benchmark problems by clustering based on the used landscape features. The identified clusters mimic the behavior the used algorithms exhibit. Meaning, the different clusters have different best performing algorithms. Finally, our trained algorithm selector is able to close the gap between the single best and the virtual best solver by 57.5% over all benchmark problems.

IMU Tracking of Kinematic Chains in the Absence of Gravitational and Magnetic Fields
Greg K. Stretton, George Alex Koulieris
https://arxiv.org/abs/2403.04357

IMU Tracking of Kinematic Chains in the Absence of Gravitational and Magnetic Fields
Tracking kinematic chains has many uses from healthcare to virtual reality. Inertial measurement units, IMUs, are well-recognised for their body tracking capabilities, however, existing solutions rely on gravity and often magnetic fields for drift correction. As humanity's presence in space increases, systems that don't rely on gravity or magnetism are required. We aim to demonstrate the viability of IMU body tracking in a microgravity environment by showing that gravity and magnetism are not n…

This https://arxiv.org/abs/2402.03301 has been replaced.
link: https://scholar.google.com/scholar?q=a

Two-loop amplitudes for ttH production: the quark-initiated Nf-part
We present numerical results for the two-loop virtual amplitude entering the NNLO corrections to Higgs boson production in association with a top quark pair at the LHC, focusing, as a proof of concept of our method, on the part of the quark-initiated channel containing loops of massless or massive quarks. Results for the UV renormalised and IR subtracted two-loop amplitude for each colour structure are given at selected phase-space points and visualised in terms of surfaces as a function of two…

This https://arxiv.org/abs/2403.12061 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csNE_…

Design-Space Exploration of SNN Models using Application-Specific Multi-Core Architectures
With the motivation and the difficulties that currently exist in comprehending and utilizing the promising features of SNNs, we proposed a novel run-time multi-core architecture-based simulator called "RAVSim" (Runtime Analysis and Visualization Simulator), a cutting-edge SNN simulator, developed using LabVIEW and it is publicly available on their website as an official module. RAVSim is a runtime virtual simulation environment tool that enables the user to interact with the model, observe its …

$d$-elliptic loci and the Torelli map
Fran\c{c}ois Greer, Carl Lian
https://arxiv.org/abs/2404.10826 https://arxiv.org/pdf/2404.10826…

$d$-elliptic loci and the Torelli map
We show that two natural cycle classes on the moduli space of compact type stable maps to a varying elliptic curve agree. The first is the virtual fundamental class from Gromov-Witten theory, and the second is the Torelli pullback of the special cycle on A_g of principally polarized abelian varieties admitting an elliptic isogeny factor.

This https://arxiv.org/abs/2402.08014 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Logarithmic negative tangency and root stacks
We study stable maps to normal crossings pairs with possibly negative tangency orders. There are two independent models: punctured Gromov-Witten theory of pairs and orbifold Gromov-Witten theory of root stacks with extremal ages. Exploiting the tropical structure of the punctured mapping space, we define and study a new virtual class for the punctured theory. This arises as a refined intersection product on the Artin fan, and produces a distinguished sector of punctured Gromov-Witten invariants…

This https://arxiv.org/abs/2310.19681 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_ees…

Distributed multi-UAV shield formation based on virtual surface constraints
This paper proposes a method for the deployment of a multi-agent system of unmanned aerial vehicles (UAVs) as a shield with potential applications in the protection of infrastructures. The shield shape is modeled as a quadric surface in the 3D space. To design the desired formation (target distances between agents and interconnections), an algorithm is proposed where the input parameters are just the parametrization of the quadric and the number of agents of the system. This algorithm guarantee…

This https://arxiv.org/abs/2404.09174 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csHC_…

Investigating the impact of virtual element misalignment in collaborative Augmented Reality experiences
The collaboration in co-located shared environments has sparked an increased interest in immersive technologies, including Augmented Reality (AR). Since research in this field has primarily focused on individual user experiences in AR, the collaborative aspects within shared AR spaces remain less explored, and fewer studies can provide guidelines for designing this type of experience. This article investigates how the user experience in a collaborative shared AR space is affected by divergent p…

Designing Upper-Body Gesture Interaction with and for People with Spinal Muscular Atrophy in VR
Jingze Tian, Yingna Wang, Keye Yu, Liyi Xu, Junan Xie, Franklin Mingzhe Li, Yafeng Niu, Mingming Fan
https://arxiv.org/abs/2403.16107

Designing Upper-Body Gesture Interaction with and for People with Spinal Muscular Atrophy in VR
Recent research proposed gaze-assisted gestures to enhance interaction within virtual reality (VR), providing opportunities for people with motor impairments to experience VR. Compared to people with other motor impairments, those with Spinal Muscular Atrophy (SMA) exhibit enhanced distal limb mobility, providing them with more design space. However, it remains unknown what gaze-assisted upper-body gestures people with SMA would want and be able to perform. We conducted an elicitation study in …