The Mathematical History Behind the Granger–Johansen Representation Theorem
Oxford Bulletin of Economics and Statistics, EarlyView.ABSTRACT When can a vector time series that is integrated once (i.e., becomes stationary after taking first differences) be described in error correction form? The answer to this is provided by the Granger–Johansen representation theorem. From a mathematical point of view, the theorem can be viewed as essentially a statement concerning the geometry of ...
Johannes M. Schumacher
wiley +1 more source
Recovering missing features in nonnegative matrix factorization via generalized singular value decomposition. [PDF]
iScienceGuo Y, Holy TE.
europepmc +1 more source
Unsupervised phenotyping of sepsis using nonnegative matrix factorization of temporal trends from a multivariate panel of physiological measurements. [PDF]
BMC Med Inform Decis Mak, 2021 Ding M, Luo Y.
europepmc +1 more source
Trade and Selection With Heterogeneous Firms and Perfect Competition
Review of International Economics, EarlyView.ABSTRACT This paper extends the Heckscher–Ohlin–Samuelson framework to allow for heterogeneous firms with capacity constraints. We show that the central theorems of the HOS model (as well as their standard generalizations via duality) carry over to our setting.
Xue Bai +3 more
wiley +1 more source
Neighborhood nonnegative matrix factorization identifies patterns and spatially-variable genes in large-scale spatial transcriptomics data. [PDF]
Genome BiolLaursen R +4 more
europepmc +1 more source
POLYPHONIC PIANO TRANSCRIPTION USING NON-NEGATIVE MATRIX FACTORISATION WITH GROUP SPARSITY
, 2014 (c)2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works for resale or ...
Plumbley, MD, O'Hanlon, K, IEEE
core
On Shortest Products for Nonnegative Matrix Mortality
Compared to the RP 2024 version, fixed a few small ...
openaire +2 more sources
Markup Centrality and International Incidence in Global Production Networks
Review of International Economics, EarlyView.ABSTRACT This paper develops a framework to measure how markups amplify prices through global production networks and to attribute final‐demand price wedges to upstream country‐industry sources. The approach defines a compound markup as the ratio of observed prices to counterfactual pure‐cost prices that would prevail if all markups in the network were
Constantin Colonescu
wiley +1 more source
Joint similarity nonnegative matrix factorization model for identification of recurrence-related association patterns in tumor. [PDF]
Brief BioinformDeng J +7 more
europepmc +1 more source
Repelled Point Processes With Application to Numerical Integration
Scandinavian Journal of Statistics, EarlyView.ABSTRACT We look at Monte Carlo numerical integration from a stochastic geometry point of view. While crude Monte Carlo estimators relate to linear statistics of a homogeneous Poisson point process (PPP), linear statistics of more regularly spread point processes can yield unbiased estimators with faster‐decaying variance, and thus lower integration ...
Diala Hawat +3 more
wiley +1 more source