Results 131 to 140 of about 59,068,638 (241)

Reentrant Landau levels in a Dirac topological insulator. [PDF]

Nat Commun
Kaufmann Ribeiro C, Mutch JC, Jiang Q, Ayres-Sims JP, Rubi K, Mizzi CA, Peterson EA, Bulmash D, Singleton J, Harrison N, Rosa PFS, Zhu JX, Chu JH, Larrea Jiménez J, Thomas SM, Palmstrom JC.   +15 more
europepmc   +1 more source

Optimized and Aligned Anisotropic Monte Carlo Sampling Patterns

Computer Graphics Forum, EarlyView.
Abstract Path tracing uses Monte Carlo integration to solve the rendering equation by evaluating the integrand at random sampling points. The convergence rate of the error can be significantly improved by using correlated instead of random sampling, especially on smooth integrands.
Mirco Werner, Johannes Hanika, Carsten Dachsbacher   +2 more
wiley   +1 more source

Harmonic trophic potentials and memory effects in ecological dynamics in resource-limited ecosystems through the Generalized Lotka-Volterra model with biomass constraints. [PDF]

Theory Biosci
Marinho JAO, da Rocha HO, Reis FPP.
europepmc   +1 more source

Linking the Comparison and Graphical Approaches to Bipartite Matching

International Statistical Review, EarlyView.
Summary Bipartite record linkage has the goal of identifying observations referring to the same individual, called coreferent observations, across two distinct non‐duplicated datasets. The two main approaches to solve this task are the Fellegi–Sunter model, which relies on pairwise comparisons of observations, and the graphical record linkage model ...
Edoardo Redivo
wiley   +1 more source

Multiband-driven anisotropic vortex topology in iron-based superconductors yielding a strain-tunable x-vortex Majorana platform. [PDF]

Nat Commun
Yu SQ, Cheng W, Li C, Gong ZS, Chen ZY, Pan XH, Xu G, Zhang FC, Liu X.   +8 more
europepmc   +1 more source

Missing Values in Time Series: A Brief Review and a New Versatile Imputation Method

International Statistical Review, EarlyView.
Summary Missing data can significantly hamper standard time series analysis, yet they occur frequently in applications. In this paper, we briefly review some available methods for handling missing values and introduce the temporal Wasserstein imputation, a novel method for imputing missing data in time series.
Shuo‐Chieh Huang, Tengyuan Liang, Ruey S. Tsay   +2 more
wiley   +1 more source

Interaction-induced magnetotransport in a 2D Dirac-Heavy hole hybrid band system. [PDF]

Sci Rep
Gusev GM, Levin AD, Chitta VA, Kvon ZD, Mikhailov NN.   +4 more
europepmc   +1 more source

Testing Distributional Granger Causality With Entropic Optimal Transport

Journal of Time Series Analysis, EarlyView.
ABSTRACT We develop a novel nonparametric test for Granger causality in distribution based on entropic optimal transport. Unlike classical mean‐based approaches, the proposed method directly compares the full conditional distributions of a response variable with and without the history of a candidate predictor.
Tao Wang
wiley   +1 more source

Plasmonic Dirac-vortex lasers via three-dimensional photonic mass vortices engineering. [PDF]

Nat Commun
Zhong M, Bi X, Song M, Mou N, Zhang D, Zhuo X, Hu J, Xie B, Ao X, Guan J.   +9 more
europepmc   +1 more source

Measure‐valued processes for energy markets

Mathematical Finance, Volume 35, Issue 2, Page 520-566, April 2025.
Abstract We introduce a framework that allows to employ (non‐negative) measure‐valued processes for energy market modeling, in particular for electricity and gas futures. Interpreting the process' spatial structure as time to maturity, we show how the Heath–Jarrow–Morton approach can be translated to this framework, thus guaranteeing arbitrage free ...
Christa Cuchiero, Luca Di Persio, Francesco Guida, Sara Svaluto‐Ferro   +3 more
wiley   +1 more source