Results 81 to 90 of about 96,074 (249)

Forecasting Digital Asset Return: An Application of Machine Learning Model

International Journal of Finance &Economics, EarlyView.
ABSTRACT In this study, we aim to identify the machine learning model that can overcome the limitations of traditional statistical modelling techniques in forecasting Bitcoin prices. Also, we outline the necessary conditions that make the model suitable.
Vito Ciciretti, Alberto Pallotta, Suman Lodh, P. K. Senyo, Monomita Nandy   +4 more
wiley   +1 more source

Strong uniqueness of the Ricci flow [PDF]

Journal of Differential Geometry, 2009
In this paper, we derive some local a priori estimates for Ricci flow. This gives rise to some strong uniqueness theorems. As a corollary, let $g(t)$ be a smooth complete solution to the Ricci flow on $\mathbb{R}^{3}$, with the canonical Euclidean metric $E$ as initial data, then $g(t)$ is trivial, i.e. $g(t)\equiv E$.
openaire   +4 more sources

Assessing US and Global Economic Policy Uncertainty Effects on Non‐Performing Loans in MENA's Islamic and Conventional Banks

International Journal of Finance &Economics, EarlyView.
ABSTRACT Banks within the MENA regions serve as pivotal agents in fostering economic growth through extensive lending to businesses, individuals and corporations, thereby amplifying employment within the banking sector. A pressing concern affecting these banks is the proliferation of NPLs, which not only diminishes net earnings but also escalates ...
Shadi Ratib Mohammad Aledeimat, Murad Abdurahman Bein   +1 more
wiley   +1 more source

Curvature cones and the Ricci flow. [PDF]

Séminaire de théorie spectrale et géométrie, 2014
Survey paper, comments are ...
openaire   +3 more sources

Some New Characterizations of Trivial Ricci–Bourguignon Solitons

Journal of Mathematics
A Ricci–Bourguignon soliton is a self-similar solution to the Ricci–Bourguignon flow equation, and a Ricci–Bourguignon soliton is called trivial if its potential field is zero or killing.
Hana Al-Sodais, Nasser Bin Turki, Sharief Deshmukh, Bang-Yen Chen, Hemangi Madhusudan Shah   +4 more
doaj   +1 more source

Ricci flow and the holonomy group [PDF]

Journal für die reine und angewandte Mathematik (Crelles Journal), 2012
Abstract. We prove that the reduced holonomy group of a complete smooth solution to the Ricci flow of uniformly bounded curvature cannot spontaneously contract within the lifetime of the solution. It follows then, from an earlier result of Hamilton, that the holonomy is exactly preserved by the equation. In particular, a solution to the
openaire   +4 more sources

Fragmentation of Multimodal Rectal Cancer Care: A Population‐Level Retrospective Cohort Study

Journal of Surgical Oncology, EarlyView.
ABSTRACT Background Locally advanced rectal cancer is often treated with multimodal therapy. Patients may receive care at a single institution or across multiple institutions. We designed this population‐level retrospective cohort to determine the association between fragmented care and timeliness of treatment and long‐term oncologic outcomes.
Tyler McKechnie, Alessandro Ricci, Kelly Brennan, Vanessa Wiseman, Victoria Shi, Adom Bondzi‐Simpson, Katrina Knight, Weidong Kong, Ameer Farooq, Sunil V. Patel   +9 more
wiley   +1 more source

Regularising the Ricci Flow Embedding [PDF]

, 2010
This paper concerns the analysis of patterns that are specified in terms of non-Euclidean dissimilarity or proximity rather than ordinal values. In prior work we have reported a means of correcting or rectifying the similarities so that the non-Euclidean artifacts are minimized.
Xu W., Hancock E.R., Wilson R.C.
openaire   +1 more source

The Ricci flow and the early universe

Annals of Physics, 2023
A framework of quantum spacetime reference frame is proposed and reviewed, in which the quantum spacetime at the Gaussian approximation is deformed by the Ricci flow. At sufficient large scale, the Ricci flow not only smooths out local small irregularities making the universe a homogeneous and isotropic Friedmann-Robertson-Walker metric, but also ...
openaire   +2 more sources

Moderate Laryngeal Dysplasia in the Context of Classification Systems and Clinical Decision Making

The Laryngoscope, EarlyView.
There is still an ongoing debate about the classification of laryngeal dysplasia. In a large retrospective analysis of 392 patients, the progression of dysplasia and the risk of a de novo occurrence of invasive carcinoma were evaluated. Here especially the high rate of occurrence of invasive carcinoma in the group of moderate dysplasia with 44% is of ...
Flurin Mueller‐Diesing, Manuel Stöth, Elena Ludwig, Andreas Rosenwald, Elena Gerhard‐Hartmann, Helena Moratin, Thomas Gehrke, Miguel Goncalves, Matthias Scheich, Stephan Hackenberg, Agmal Scherzad, Till Jasper Meyer   +11 more
wiley   +1 more source