Open this publication in new window or tab >>2022 (English)In: International Interactions, ISSN 0305-0629, E-ISSN 1547-7444, Vol. 48, no 4, p. 597-613Article in journal (Refereed) Published
Abstract [en]
This contribution to the ViEWS prediction competition 2020 proposes using Markov modeling to model the change in the logarithm of battle-related deaths between two points in time in a country. The predictions are made using two ensembles of observed and hidden Markov models, where the covariate sets for the ensembles are drawn from the ViEWS country month constituent models. The weights for the individual models in the ensembles were obtained using a genetic algorithm optimizing the fit on the TADDA-score in a calibration set. The weighted ensembles of visible and hidden Markov models outperform the ViEWS prediction competition benchmark models on the TADDA score in the test period of January 2017 to December 2019 for all time steps. Forecasts until March 2021 predict increased violence primarily in Algeria, Libya, Tchad, Niger, and Angola, and decreased or unchanged levels of violence in most of the remaining countries in Africa. An analysis of the model weights in the ensembles shows that the conflict history constituent model provided by ViEWS was dominant in the ensembles.
Place, publisher, year, edition, pages
Routledge, 2022
Keywords
Forecast, Markov model, prediction, state- based violence
National Category
Other Social Sciences not elsewhere specified Probability Theory and Statistics
Research subject
Peace and Conflict Research; Statistics
Identifiers
urn:nbn:se:uu:diva-473026 (URN)10.1080/03050629.2022.2049772 (DOI)000770284500001 ()
Funder
EU, European Research Council, H2020-ERC-2015-AdG 694640Swedish Research Council, 2017-01175
2022-04-202022-04-202023-09-01Bibliographically approved