General Additive Network Effect Models
نویسندگان
چکیده
In the interest of business innovation, social network companies often carry out experiments to test product changes and new ideas. such experiments, users are typically assigned one two experimental conditions with some outcome observed compared. this setting, user may be influenced by not only condition which they but also other via their connections. This challenges classical design analysis methodologies requires specialized methods. We introduce general additive effect (GANE) model, encompasses many existing models in literature under a unified model-based framework. The model is both interpretable flexible modeling treatment as well influence. show that (quasi) maximum likelihood estimators consistent asymptotically normal for family specifications. Quantities global defined expressed functions GANE parameters, hence inference can carried using theory. further propose “power-degree” (POW-DEG) specification model. performance POW-DEG specifications investigated simulations. Under misspecification, appears work well. Finally, we study characteristics good designs specification. find graph-cluster randomization balanced necessarily optimal precise estimation effect, indicating need alternative strategies.
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ژورنال
عنوان ژورنال: The New England Journal of Statistics in Data Science
سال: 2023
ISSN: ['2693-7166']
DOI: https://doi.org/10.51387/23-nejsds29