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21+ open-access research outputs.

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AI & Data Science Preprint PDF DOI

3D sans 3D Scans: Scalable Pre-training from Video-Generated Point Clouds

Ryousuke Yamada, Kohsuke Ide, Yoshihiro Fukuhara, Hirokatsu Kataoka, Gilles Puy, Andrei Bursuc, Yuki M. Asano ยท 2025

Despite recent progress in 3D self-supervised learning, collecting large-scale 3D scene scans remains expensive and labor-intensive. In this work, we investigate whether 3D representations can be learโ€ฆ

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Physics Preprint PDF DOI

Configurational Temperature as a Diagnostic for Complex Langevin Dynamics in the 3D XY Model

Anosh Joseph, Arpith Kumar ยท 2025

We investigate the applicability of complex Langevin dynamics to the three-dimensional XY model at finite chemical potential. To assess correctness, we introduce a new diagnostic based on the configurโ€ฆ

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Economics & Finance Preprint PDF DOI

Comment on "Sequential validation of treatment heterogeneity" and "Comment on generic machine learning inference on heterogeneous treatment effects in randomized experiments"

Victor Chernozhukov, Mert Demirer, Esther Duflo, Ivan Fernandez-Val ยท 2025

We warmly thank Kosuke Imai, Michael Lingzhi Li, and Stefan Wager for their gracious and insightful comments. We are particularly encouraged that both pieces recognize the importance of the research aโ€ฆ

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AI & Data Science Preprint PDF DOI

Formula-Supervised Visual-Geometric Pre-training

Ryosuke Yamada, Kensho Hara, Hirokatsu Kataoka, Koshi Makihara, Nakamasa Inoue, Rio Yokota, Yutaka Satoh ยท 2024

Throughout the history of computer vision, while research has explored the integration of images (visual) and point clouds (geometric), many advancements in image and 3D object recognition have tendedโ€ฆ

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Computer Science Preprint PDF DOI

Hotspots and Trends in Magnetoencephalography Research (2013-2022): A Bibliometric Analysis

Shen Liu, Jingwen Zhao ยท 2024

This study aimed to utilize bibliometric methods to analyze trends in international Magnetoencephalography (MEG) research from 2013 to 2022. Due to the limited volume of domestic literature on MEG, thโ€ฆ

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Mathematics Preprint PDF DOI

Some variants of the generalized Borel Theorem and applications

Dinh Tuan Huynh ยท 2024

In the first part of this paper, we establish some results around generalized Borel's Theorem. As an application, in the second part, we construct example of smooth surface of degree $d\geq 19$ in $\mโ€ฆ

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AI & Data Science Preprint PDF DOI

Reducing the Cost of Quantum Chemical Data By Backpropagating Through Density Functional Theory

Alexander Mathiasen, Hatem Helal, Paul Balanca, Adam Krzywaniak, Ali Parviz, Frederik Hvilsh{o}j, Blazej Banaszewski, Carlo Luschi, Andrew William Fitzgibbon ยท 2024

Density Functional Theory (DFT) accurately predicts the quantum chemical properties of molecules, but scales as $O(N_{\text{electrons}}^3)$. Sch\"utt et al. (2019) successfully approximate DFT 1000x fโ€ฆ

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Mathematics Preprint PDF DOI

Geometry of the space of monodromy data

Jean-Pierre Ramis, Jacques Sauloy ยท 2023

In a paper published by the Annales de la Facult\'e de Sciences de Toulouse, with Yousuke Ohyama, we defined and studied a space of monodromy data underlying the well known derivation of q-Painlev\'e โ€ฆ

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Physics Preprint PDF DOI

Traveling wave solutions for non-Newtonian foam flow in porous media

Weslley da Silva Pereira, Grigori Chapiro ยท 2022

The injection and in-situ generation of foam in porous media successfully control gas mobility and improve the fluids' sweep efficiency inside porous media. Mathematical models describing this problemโ€ฆ

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Mathematics Preprint PDF DOI

Spherical Representations of $C^*$-Flows II: Representation System and Quantum Group Setup

Yoshimichi Ueda ยท 2022

This paper is a sequel to our previous study of spherical representations in the operator algebra setup. We first introduce possible analogs of dimension groups in the present context by utilizing theโ€ฆ

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Physics Preprint PDF DOI

Gravitational waves from bubble collisions in FLRW spacetime

Haowen Zhong, Biping Gong, Taotao Qiu ยท 2021

Stochastic gravitational wave background (SGWB) is a promising tool to probe the very early universe where the standard model of particle physics and cosmology are connected closely. As a possible comโ€ฆ

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AI & Data Science Preprint PDF DOI

Robust Group Subspace Recovery: A New Approach for Multi-Modality Data Fusion

Sally Ghanem, Ashkan Panahi, Hamid Krim, Ryan A. Kerekes ยท 2020

Robust Subspace Recovery (RoSuRe) algorithm was recently introduced as a principled and numerically efficient algorithm that unfolds underlying Unions of Subspaces (UoS) structure, present in the dataโ€ฆ

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Medicine & Health Peer-Reviewed PDF DOI

Loop-Mediated Isothermal Amplification Screening for COVID-19 in Asymptomatic Preoperative Orthopedic Patients in a General Hospital in Kanagawa, Japan.

Kentaro Uchida, Hiroyuki Sekiguchi, Reiji Higashiyama, Tachio Endo, Yuji Yokozeki, Gen Inoue, Masayuki Miyagi, Shotaro Fujino, Naoto Yoshida, Masashi Takaso ยท 2020

The global coronavirus disease 2019 (COVID-19) pandemic has caused several million infections and hundreds of thousands of deaths. A large number of healthcare workers have died as a result of infectiโ€ฆ

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Physics Preprint PDF DOI

Experimental test of a 40 cm-long R=100 000 spectrometer for exoplanet characterisation

Guillaume Bourdarot, Etienne Le Coarer, David Mouillet, Jean-Jacques Correia, Laurent Jocou, Patrick Rabou, Alexis Carlotti, Xavier Bonfils, Etienne Artigau, Philippe Vallee, Rene Doyon, Thierry Forveille, Eric Stadler, Yves Magnard, Arthur Vigan ยท 2018

High-resolution spectroscopy is a key element for present and future astronomical instrumentation. In particular, coupled to high contrast imagers and coronagraphs, high spectral resolution enables hiโ€ฆ

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Mathematics Preprint PDF DOI

A Weyl Module Stratification of Integrable Representations (with an appendix by Ryosuke Kodera)

Syu Kato, Sergey Loktev ยท 2017

We construct a filtration on integrable highest weight module of an affine Lie algebra whose adjoint graded quotient is a direct sum of global Weyl modules. We show that the graded multiplicity of eacโ€ฆ

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Mathematics Preprint PDF DOI

Coulomb branches of $3d$ $\mathcal N=4$ quiver gauge theories and slices in the affine Grassmannian (with appendices by Alexander Braverman, Michael Finkelberg, Joel Kamnitzer, Ryosuke Kodera, Hiraku Nakajima, Ben Webster, and Alex Weekes)

Alexander Braverman, Michael Finkelberg, Hiraku Nakajima ยท 2016

This is a companion paper of arXiv:1601.03586. We study Coulomb branches of unframed and framed quiver gauge theories of type $ADE$. In the unframed case they are isomorphic to the moduli space of basโ€ฆ

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Mathematics Preprint PDF DOI

A proof of an open problem of Yusuke Nishizawa for a power-exponential function

Branko Malesevic, Tatjana Lutovac, Bojan Banjac ยท 2016

This paper presents a proof of the following conjecture, stated by Nishizawa in [Appl. Math. Comput. 269, (2015), 146--154.]: for $\displaystyle 0<x<\pi/2$ the inequality $ \displaystyle \frac{\sin{x}โ€ฆ

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Neuroscience Preprint PDF DOI

Single-trial estimation of stimulus and spike-history effects on time-varying ensemble spiking activity of multiple neurons: a simulation study

Hideaki Shimazaki ยท 2013

Neurons in cortical circuits exhibit coordinated spiking activity, and can produce correlated synchronous spikes during behavior and cognition. We recently developed a method for estimating the dynamiโ€ฆ

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Physics Preprint PDF DOI

Hybrid functionals for solids with an optimized Hartree-Fock mixing parameter

David Koller, Peter Blaha, Fabien Tran ยท 2013

(Screened) hybrid functionals are being used more and more for solid-state calculations. Usually the fraction alpha of Hartree-Fock exchange is kept fixed during the calculation, however there is no sโ€ฆ

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Multidisciplinary & Other Preprint PDF DOI

Morphological Classification of Galaxies Using Artificial Neural Networks

Nicholas M. Ball ยท 2001

The results of morphological galaxy classifications performed by humans and by automated methods are compared. In particular, a comparison is made between the eyeball classifications of 454 galaxies iโ€ฆ

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