Results 131 to 140 of about 206 (169)

On Spatial Point Processes With Composition‐Valued Marks

International Statistical Review, EarlyView.
Summary Methods for marked spatial point processes with scalar marks have seen extensive development in recent years. While the impressive progress in data collection and storage capacities has yielded an immense increase in spatial point process data with highly challenging non‐scalar marks, methods for their analysis are not equally well developed ...
Matthias Eckardt, Mari Myllymäki, Sonja Greven   +2 more
wiley   +1 more source

Specification Tests for Jump‐Diffusion Models Based on the Characteristic Function

International Statistical Review, EarlyView.
Summary Goodness‐of‐fit tests are suggested for several popular jump‐diffusion processes. The suggested test statistics utilise the marginal characteristic function of the model and its L2‐type discrepancy from an empirical counterpart. Model parameters are estimated either by minimising the aforementioned L2‐type discrepancy or by maximum likelihood ...
Gerrit Lodewicus Grobler, Denis Belomestny, Simos George Meintanis, Emanuele Taufer   +3 more
wiley   +1 more source

A universal symmetry detection algorithm. [PDF]

Springerplus, 2015
Maurer PM.
europepmc   +1 more source

Regularization Approaches for High‐Dimensional Cox Models: A Case Study in Triple‐Negative Breast Cancer

International Statistical Review, EarlyView.
Summary In high‐dimensional survival analysis, effective variable selection is crucial both for model interpretation and predictive performance. This paper investigates Cox regression with lasso and adaptive lasso penalties in genomic datasets where covariates far outnumber observations.
Pilar González‐Barquero, Rosa E. Lillo, Álvaro Méndez‐Civieta   +2 more
wiley   +1 more source

Flexible Bayesian Product Mixture Models for Vector Autoregressions. [PDF]

J Mach Learn Res
Kundu S, Lukemire J.
europepmc   +1 more source

Amenability of coarse spaces and K -algebras. [PDF]

Bull Math Sci, 2018
Ara P, Li K, Lledó F, Wu J.
europepmc   +1 more source

Integrated location–inventory planning for slow‐moving demands with waiting time limitations

International Transactions in Operational Research, EarlyView.
Abstract This paper studies a stochastic facility location problem integrated with inventory and transportation decisions (SFLPIT) for supply chains with slow‐moving stock‐keeping units (SKUs). Local stores often avoid maintaining such SKUs, resulting in customer demand being fulfilled directly by a central distribution center (DC), where the ...
Jie Chu, Fan E, Kai Huang, Yunyang Lu, Majid Taghavi   +4 more
wiley   +1 more source

Molecular similarity: Theory, applications, and perspectives. [PDF]

Artif Intell Chem
López-Pérez K, Avellaneda-Tamayo JF, Chen L, López-López E, Juárez-Mercado KE, Medina-Franco JL, Miranda-Quintana RA.   +6 more
europepmc   +1 more source

A spectral analysis extension to DEMATEL for strategic leverage points identification

International Transactions in Operational Research, EarlyView.
Abstract Efforts to intervene in complex systems often emphasize influential factors, yet system behavior is equally shaped by the relationships among them. Methods such as Decision‐Making Trial and Evaluation Laboratory (DEMATEL) map causal structures but remain descriptive and do not identify which relationships provide the greatest leverage for ...
Pavlos Delias, Kerasia Kalkitsa
wiley   +1 more source

Peasant Movements and the Fourth Transformation in Mexico: What Does the Theory of Collective Empowerment Tell Us?

Journal of Agrarian Change, EarlyView.
ABSTRACT This article examines peasant and Indigenous movements in Mexico since Morena's rise to power in 2018 through the lens of collective empowerment theory, a theory of political‐cultural formation. Beyond offering an empirical assessment, the theory is refined and formalized through an analysis of these movements and their relationship to ...
Gerardo Otero
wiley   +1 more source