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Interacting dark matter (DM) - dark energy (DE) models have been intensively investigated in the literature for their ability to fit various data sets as well as to explain some observational tensions persisting within the $\Lambda$CDM…

宇宙学与河外天体物理 · 物理学 2022-04-19 Alexander Bonilla , Suresh Kumar , Rafael C. Nunes , Supriya Pan

Time series data is a prevalent form of data found in various fields. It consists of a series of measurements taken over time. Forecasting is a crucial application of time series models, where future values are predicted based on historical…

机器学习 · 计算机科学 2025-09-23 Sahar Koohfar , Wubeshet Woldemariam

We describe an initiative to build and use the Dark Energy Spectrometer (DESpec), a wide-field spectroscopic survey instrument for the Blanco 4 meter telescope at Cerro Tololo InterAmerican Observatory (CTIO) in Chile. A new system with…

Recent results from the DESI collaboration suggest a preference for an evolving dark energy (DE) component rather than a cosmological constant, motivating the exploration of alternative models for the background expansion. These data also…

宇宙学与河外天体物理 · 物理学 2025-12-19 Mario A. Rodríguez-Meza , Jorge L. Cervantes-Cota , Tonatiuh Matos

Motivated by the fact that forward and backward passes of a deep network naturally form symmetric mappings between input and output representations, we introduce a simple yet effective self-supervised vision model pretraining framework…

计算机视觉与模式识别 · 计算机科学 2023-02-06 Ze Wang , Jiang Wang , Zicheng Liu , Qiang Qiu

The impacts of climate change are felt by most critical systems, such as infrastructure, ecological systems, and power-plants. However, contemporary Earth System Models (ESM) are run at spatial resolutions too coarse for assessing effects…

计算机视觉与模式识别 · 计算机科学 2017-03-10 Thomas Vandal , Evan Kodra , Sangram Ganguly , Andrew Michaelis , Ramakrishna Nemani , Auroop R Ganguly

The extraction of geoelectric structural information from airborne transient electromagnetic(ATEM)data primarily involves data processing and inversion. Conventional methods rely on empirical parameter selection, making it difficult to…

机器学习 · 计算机科学 2025-03-31 Shuang Wang , Xuben Wang , Fei Deng , Xiaodong Yu , Peifan Jiang , Lifeng Mao

In light of the evidence for dynamical dark energy (DE) found from the most recent Dark Energy Spectroscopic Instrument (DESI) baryon acoustic oscillation (BAO) measurements, we perform a non-parametric, model-independent reconstruction of…

宇宙学与河外天体物理 · 物理学 2025-03-18 Maria Berti , Emilio Bellini , Camille Bonvin , Martin Kunz , Matteo Viel , Miguel Zumalacarregui

Recently, there has been considerable debate regarding potential evidence for the dynamical nature of dark energy (DE), particularly in light of Baryon Acoustic Oscillations (BAO) measurements released by DESI survey. In this work, we…

宇宙学与河外天体物理 · 物理学 2025-08-18 Mateus Scherer , Miguel A. Sabogal , Rafael C. Nunes , Antonio De Felice

Current cloud computing frameworks host millions of physical servers that utilize cloud computing resources in the form of different virtual machines (VM). Cloud Data Center (CDC) infrastructures require significant amounts of energy to…

The application of big data is one of the significant features of integrated smart energy. Applying it to the file management of integrated smart energy projects is of great significance for improving the efficiency of project management…

系统与控制 · 电气工程与系统科学 2025-08-08 Jinzhou Xu , Yadan Zhang , Paola Tapia

We present the development of a decay energy spectroscopy (DES) method for the analysis of radioactive impurities using magnetic microcalorimeters (MMCs). The DES system was designed to analyze radionuclides, such as Ra-226, Th-228, and…

Increased adoption and deployment of phasor measurement units (PMU) has provided valuable fine-grained data over the grid. Analysis over these data can provide insight into the health of the grid, thereby improving control over operations.…

数据库 · 计算机科学 2016-05-26 Ben McCamish , Rich Meier , Jordan Landford , Robert Bass , Eduardo Cotilla-Sanchez , David Chiu

In this paper, we consider the problem of optimal demand response and energy storage management for a power consuming entity. The entity's objective is to find an optimal control policy for deciding how much load to consume, how much power…

最优化与控制 · 数学 2012-05-22 Longbo Huang , Jean Walrand , Kannan Ramchandran

Kernel density estimation (KDE) is one of the most widely used nonparametric density estimation methods. The fact that it is a memory-based method, i.e., it uses the entire training data set for prediction, makes it unsuitable for most…

机器学习 · 计算机科学 2022-08-08 Joseph A. Gallego , Juan F. Osorio , Fabio A. González

In the last year, several pieces of evidence have pointed to a possible deviation from the standard cosmological model, $\Lambda$CDM. The recent work by the Dark Energy Survey (DES) collaboration reports a preference in the ballpark of…

宇宙学与河外天体物理 · 物理学 2026-05-13 Santiago Avila , Juan Mena-Fernández , Maria Vincenzi

In the statistical framework of model-independent Gaussian processes (GP), we search for the evidence of dynamical dark energy (DDE) using the "Joint Light-curve Analysis" (JLA) Type Ia supernovae (SNe Ia) sample, the 30 latest cosmic…

宇宙学与河外天体物理 · 物理学 2019-04-02 Deng Wang , Wei Zhang , Xin-He Meng

This study presents a novel state estimation approach integrating Deep Neural Networks (DNNs) into Moving Horizon Estimation (MHE). This is a shift from using traditional physics-based models within MHE towards data-driven techniques.…

系统与控制 · 电气工程与系统科学 2025-07-29 Alexander Winkler , Pranav Shah , Katrin Baumgärtner , Vasu Sharma , David Gordon , Jakob Andert

We present a general method to reproduce a given cosmological background through energy exchange between dark energy (DE) and dark matter (DM). This can be simply realized with a standard quintessence scalar field that controls the DM mass.…

宇宙学与河外天体物理 · 物理学 2026-01-09 Lorenzo La Penna , Alessio Notari , Michele Redi