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Showing 12307 results for "chris miller"
Mathematics Preprint PDF DOI

Rational characteristic classes of bundles with fibre a product of spheres

Jan McGarry-Furriol ยท 2026

We prove the existence of many non-trivial characteristic classes of smooth oriented bundles with fibre a product $ S^{n}\times S^{n} $ of odd-dimensional spheres. We do so by proving injectivity of tโ€ฆ

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Engineering Preprint PDF DOI

PM-EKF: A Physiological Model-Based Extended Kalman Filter for Daily-Life Physical Activity Energy Expenditure Estimation

Shuhao Que, Remco Poelarends, Valentina Breschi, Ying Wang ยท 2026

Monitoring physical activity energy expenditure (PAEE) in daily life is essential for characterizing individual health and metabolic status. Although indirect calorimetry provides gold-standard PAEE mโ€ฆ

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Engineering Preprint PDF DOI

STAR-Filter: Efficient Convex Free-Space Approximation via Starshaped Set Filtering in Noisy Environments

Yuwei Wu, Yichen Zhao, Dexter Ong, Vijay Kumar ยท 2026

Approximating collision-free space is fundamental to robot planning in complex environments. Convex geometric representations, such as polytopes and ellipsoids, are widely employed due to their structโ€ฆ

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Physics Preprint PDF DOI

Low peak-power pulse compression in gas-filled Herriott cells in the 2 {\mu}m wavelength range

Johann Gabriel Meyer, Felix Ritzkowsky, Fatemehsadat Ghaffari, Kevin Schwarz, Nazar Kovalenko, Christian Franke, Andrea Trabattoni, Oleg Pronin ยท 2026

At laser wavelengths longer than the prominent 1 {\mu}m range of high-power ytterbium-doped lasers, nonlinear phase shifts produced in nonlinear media for spectral broadening and subsequent pulse compโ€ฆ

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Physics Preprint PDF DOI

A Theoretical Investigation of the Thermal and Photochemical Mechanisms of Ethylbenzene Dehydrogenation on Rutile TiO$_{2}$(110)

Nico Yannik Merkt ยท 2026

This master's thesis investigates the thermal and photochemical dehydrogenation of ethylbenzene (EB) to styrene on the rutile TiO$_{2}$(110) surface. A dual-methodological quantum chemical approach isโ€ฆ

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Mathematics Preprint PDF DOI

Components of strata of k-differentials and their orbit closures

Paul Apisa, Juliet Aygun ยท 2026

We obtain a complete classification of components of strata of holomorphic and meromorphic k-differentials. We show that, when genus is at least two and outside of explicit exceptions when k < 4, therโ€ฆ

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Physics Preprint PDF DOI

Chemical transformation of MgH2/V2O5 composite to Mg-V-O rock salt and its influence on the electrochemical Li conversion and hydrogen storage characteristics of MgH2

D. Pukazhselvan, Ihsan Caha, Francisco J.A. Loureiro, Francis Leonard Deepak, Catarina de Lemos, Aliaksandr L. Shaula, Sergey M. Mikhalev, Duncan Paul Fagg ยท 2026

This study investigates the lithium conversion behavior of a hydrogen storage material based on vanadium oxide added magnesium hydride. To understand the chemical interaction between vanadium oxide anโ€ฆ

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Engineering Preprint PDF DOI

The role of physical models in the validation and calibration of numerical models -- The example of the Lilleb{\ae}lt Bridge

Paula Apollonia Wunderlich, Gledson Rodrigo Tondo, Guido Morgenthal ยท 2026

With the rapid advancement of computer technologies enabling fast calculations of complex structures, numerical methods have become a central tool in engineering sciences, while physical models have iโ€ฆ

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AI & Data Science Preprint PDF DOI

Post-Hoc Inference of Cross-Classified Statistics from Hierarchical Bayes Survey Weights

Siu-Ming Tam ยท 2026

Tam [2026] shows that combining Bethel multivariate allocation with Hierarchical Bayes (HB) small area models can substantially reduce survey sample sizes while maintaining domain-level precision and โ€ฆ

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Physics Preprint PDF DOI

Proximity Ferroelectricity Driven by Mobile High-Miller-Index Domain Walls

Changming Ke, Shi Liu ยท 2026

Wurtzite ferroelectrics such as scandium-doped aluminum nitride (AlScN) are promising for next-generation memory because of their compatibility with semiconductor processes and strong spontaneous polaโ€ฆ

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Mathematics Preprint PDF DOI

On a Keller-Segel type equation to model Brain Microvascular Endothelial Cells growth's patterns

B Ambrosio, A Garroudji, S Fitzsimons, H Zaag, F.M. Elahi ยท 2026

This article presents a partial differential equation (PDE) of Keller-Segel (KS) type that reproduces patterns commonly observed during the growth of brain microvasculature. We provide mathematical inโ€ฆ

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Computer Science Preprint PDF DOI

A Theory of Hanoi Omega-Automata and Games

Emmanuel Filiot, Allen Joseph, Guillermo A. Perez, Saina Sunny ยท 2026

The Hanoi Omega-Automata (HOA) format has established itself as the definitive standard for encoding $\omega$-regular automata in modern synthesis tools. While HOA is widely adopted due to its succincโ€ฆ

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Physics Preprint PDF DOI

Geometry selective colossal negative dielectric permittivity in CaFe2O4 nanostructures

Sourav Sarkar, Kalyan Mandal ยท 2026

Negative permittivity metamaterial is a scientifically rich avenue due to its tremendous application in several arena of materials research including novel superlens, band-gap materials, invisibility โ€ฆ

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Computer Science Preprint PDF DOI

Prism-Reranker: Beyond Relevance Scoring -- Jointly Producing Contributions and Evidence for Agentic Retrieval

Dun Zhang ยท 2026

Modern retrieval pipelines increasingly serve downstream consumers like retrieval-augmented generation (RAG) and autonomous agents that need more than a scalar relevance score. A reranker that only teโ€ฆ

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Economics & Finance Preprint PDF DOI

Rigidity and default in production networks

Giacomo Como, Fabio Fagnani, Elisa Luciano, Alessandro Milazzo, Marco Scarsini ยท 2026

This paper studies the transmission of productivity shocks in general equilibrium production networks, when firms in different sectors operate under informational rigidity and rely on external debt. Rโ€ฆ

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Computer Science Preprint PDF DOI

Branch Landing: Bloom Filter-Based Source Authorization for Forward-Edge CFI on RISC-V

You Wu, Peter Beerel ยท 2026

Jump-Oriented Programming (JOP) attacks exploit indirect control transfers to bypass backward-edge defenses, yet existing forward-edge CFI mechanisms lack precise source-domain authorization: type-basโ€ฆ

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Engineering Preprint PDF DOI

An Exponentially stable Extended Kalman Filter with Estimate dependent Process noise Covariance for Chemical Reaction Networks

Suryasnata Dash, Abhishek Dey ยท 2026

Biomolecular systems are often modeled with partially known nonlinear stochastic dynamics, making state and parameter estimation a central challenge. While Kalman filtering techniques are widely used โ€ฆ

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Engineering Preprint PDF DOI

Predictive Directional Selective Fixed-Filter Active Noise Control for Moving Sources via a Convolutional Recurrent Neural Network

Boxiang Wang, Zhengding Luo, Dongyuan Shi, Junwei Ji, Xiruo Su, Woon-Seng Gan ยท 2026

Directional Selective Fixed-Filter Active Noise Control (D-SFANC) can effectively attenuate noise from different directions by selecting the suitable pre-trained control filter based on the Direction-โ€ฆ

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Engineering Preprint PDF DOI

Learning to Trust AI and Data-driven models in Data Assimilation through a Multifidelity Ensemble Gaussian Mixture Filter Framework

Andrey A. Popov ยท 2026

AI and data-driven models have large potential for data assimilation applications by creating fast and accurate forecasts. Their tendency to produce spurious inaccurate, nonphysical results -- halluciโ€ฆ

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AI & Data Science Preprint PDF DOI

K-Score: Kalman Filter as a Principled Alternative to Reward Normalization in Reinforcement Learning

Zixuan Xia, Quanxi Li ยท 2026

We propose a simple yet effective alternative to reward normalization in policy gradient reinforcement learning by integrating a 1D Kalman filter for online reward estimation. Instead of relying on fiโ€ฆ

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