Results 101 to 110 of about 14,176 (292)

Interval propagation and search on directed acyclic graphs for numerical constraint solving [PDF]

Interval constraint propagation, Directed acyclic graphs, Branch and prune,
Xuan-Ha Vu, Hermann Schichl, Sam-Haroud, Djamila, Vu, Xuan-Ha, Djamila Sam-Haroud, Schichl, Hermann   +5 more
core   +1 more source

A Joint Test of Unconfoundedness and Common Trends

Journal of Applied Econometrics, EarlyView.
ABSTRACT We introduce an overidentification test of two alternative assumptions to identify the average treatment effect on the treated in a two‐period panel data setting: unconfoundedness and common trends. Under unconfoundedness, treatment assignment and post‐treatment outcomes are independent, conditional on control variables and pre‐treatment ...
Martin Huber, Eva‐Maria Oeß
wiley   +1 more source

Graphical Models for Structural Vector Autoregressions [PDF]

In this paper a method to identify the causal structure associated with a VAR model is proposed. The structure is described by means of a graph, which provides a rigorous language to analyze the statistical and logical properties of causal relations ...
Alessio Moneta
core  

Counting Markov Equivalent Directed Acyclic Graphs Consistent with Background Knowledge

, 2023
A polynomial-time exact algorithm for counting the number of directed acyclic graphs in a Markov equivalence class was recently given by Wien\"obst, Bannach, and Li\'skiewicz (AAAI 2021).
Sharma, Vidya Sagar
core   +1 more source

Fiscal Policy Regimes in Resource‐Rich Economies

Journal of Applied Econometrics, EarlyView.
ABSTRACT We analyse fiscal policy in resource‐rich economies using a novel Bayesian regime‐switching panel model. The identified regimes capture pro‐ or countercyclical fiscal behaviour by allowing regime‐specific shifts in the average fiscal stance, while the switches between the regimes have the interpretation of changes in fiscal policy.
Hilde C. Bjørnland, Roberto Casarin, Marco Lorusso, Francesco Ravazzolo   +3 more
wiley   +1 more source

Heavy Metal Mixture Exposure and Insulin Resistance in U.S. Adults: The Mediating Role of Systemic Inflammation

Journal of Clinical Laboratory Analysis, EarlyView.
In a nationally representative sample of 3042 U.S. adults from NHANES 2021–2023, blood lead, cadmium, and mercury, both individually and as a weighted quantile sum (WQS) mixture, were inversely associated with insulin resistance assessed by HOMA‐IR. Systemic inflammation, measured by high‐sensitivity C‐reactive protein (hs‐CRP), significantly mediated ...
Cai Zhang, Shidi Lin, Yu Lin
wiley   +1 more source

A Min–Max Relation on Dicuts and Dijoins in Weighted Chordal Digraphs

Journal of Graph Theory, EarlyView.
ABSTRACT In a digraph, a dicut is a cut where all the arcs cross in one direction. A dijoin is a subset of arcs that intersects every dicut. Edmonds and Giles conjectured that in a weighted digraph, the minimum weight of a dicut is equal to the maximum size of a packing of dijoins. This has been disproved. However, the unweighted version conjectured by
Gérard Cornuéjols, Siyue Liu, R. Ravi
wiley   +1 more source

An approach for finding causal relations in environmental systems: with an application to understand drivers of a toxic algal bloom

Ecological Processes
Background Discovering causality in environmental systems is challenging because frequently controlled experiments or numerical simulations are difficult. Algorithms to learn directed acyclic graphs from system data are powerful, but they often result in
Benny Selle
doaj   +1 more source

Scheduling early primary care follow‐up after pneumonia: A retrospective target trial emulation in five hospitals

Journal of Hospital Medicine, EarlyView.
Abstract Background Current guidelines make no recommendations on discharge interventions or scheduling outpatient follow‐up after hospitlization for commnity‐acquired pneumonia (CAP). Objectives To assess the impact of scheduling early primary care follow‐up prior to discharge home among survivors of hypoxemic CAP hospitalizations.
Andrew J. Davis, Stephanie P. Taylor, Catherine L. Hough, Mari Armstrong‐Hough, Li Yan, Catherine K. Ettman, Katy Sadowski, Khyzer B. Aziz, Patrick G. Lyons, Katrina E. Hauschildt, Marc Kowalkowski, Eliana M. Perrin, Theodore J. Iwashyna   +12 more
wiley   +1 more source

Functional tooth unit, periodontal status, and association with weight change in older adults

Journal of Periodontology, EarlyView.
Abstract Background Literature reports that having fewer teeth is associated with reduced chewing capacity, which in turn may lead to weight changes due to diminished oral functionality. This study aims to assess the association between functional tooth units (FTU) and periodontal status and weight change among older adults participating in the Health,
Mariana S. Muñoz, Natália M. Pola, Juliana B. Hilgert, Fernando N. Hugo, Roberto P. Pimentel, Eleanor M. Simonsick, Francisco W. M. G. Muniz   +6 more
wiley   +1 more source