Journal
INTERNATIONAL INTERACTIONS
Volume 48, Issue 4, Pages 649-677Publisher
ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
DOI: 10.1080/03050629.2022.2090934
Keywords
Armed conflict; forecasting; machine learning
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This article presents an approach to forecasting conflict fatalities that takes into account the complexity of the drivers and processes of armed conflicts. By modeling conflicts separately for each country and using an adaptive model called DynENet, the approach efficiently selects relevant predictors among a large set of variables. The method is suitable for addressing the complexity of conflict dynamics and produces interpretable forecasts.
This article illustrates an approach to forecasting change in conflict fatalities designed to address the complexity of the drivers and processes of armed conflicts. The design of this approach is based on two main choices. First, to account for the specificity of conflict drivers and processes over time and space, we model conflicts in each individual country separately. Second, we draw on an adaptive model-Dynamic Elastic Net, DynENet-which is able to efficiently select relevant predictors among a large set of covariates. We include over 700 variables in our models, adding event data on top of the data features provided by the convenors of the forecasting competition. We show that our approach is suitable and computationally efficient enough to address the complexity of conflict dynamics. Moreover, the adaptive nature of our model brings a significant added value. Because for each country our model only selects the variables that are relevant to predict conflict intensity, the retained predictors can be analyzed to describe the dynamic configuration of conflict drivers both across countries and within countries over time. Countries can then be clustered to observe the emergence of broader patterns related to correlates of conflict. In this sense, our approach produces interpretable forecasts, addressing one key limitation of contemporary approaches to forecasting.
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