Evidence map›Paper›PMID 37700855›Full record

ArticleComputational statistics & data analysis2023

Under-reported time-varying MINAR(1) process for modeling multivariate count series.

Zeynab Aghabazaz, Iraj Kazemi

Abstract read
In one paragraph

Article in Computational statistics & data analysis, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Zeynab AghabazazDepartment of Preventive Medicine, Northwestern University Feinberg School of Medicine, USA.
Iraj KazemiDepartment of Statistics, Faculty of Mathematics & Statistics, University of Isfahan, Iran.

Funding

Combining longitudinal cohort studies to examine cardiovascular risk factor trajectories across the adult lifespan and their association with diseaseR01HL158963 · NHLBI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI DANIELS, MICHAEL J, SIDDIQUE, JUNED · 2021 to 2024
$2.3M
NHLBI NIH HHS R01 HL158963
6 · The paper itself

Abstract

A time-varying multivariate integer-valued autoregressive of order one (tvMINAR(1)) model is introduced for the non-stationary time series of correlated counts when under-reporting is likely present. A non-diagonal autoregression probability network is structured to preserve the cross-correlation of multivariate series, provide a necessary condition to ease model-fittings computations, and derive the full likelihood using the Viterbi algorithm. The motivating construction applies to fully under-reported counts that rely on a mixture presentation of the random thinning operator. Simulation studies are conducted to examine the proposed model, and the analysis of COVID-19 daily cases is accomplished to highlight its usefulness in applications. Finally, the comparison of models is presented using the posterior predictive checking method.

Indexed as

2020 MSC: 62M1060G0762M20Binomial thinning operatorCross-correlated time seriesForecastingRandom network modelTime-varying stochastic process

Identifiers

PMID37700855
PMCPMC10493608

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.