{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T16:09:53Z","timestamp":1778083793160,"version":"3.51.4"},"reference-count":47,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2025,2,24]],"date-time":"2025-02-24T00:00:00Z","timestamp":1740355200000},"content-version":"vor","delay-in-days":54,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Applied Computational Intelligence and Soft Computing"],"published-print":{"date-parts":[[2025,1]]},"abstract":"<jats:p>\n                    The ongoing conflict between Russia and Ukraine has introduced significant volatility into the global oil markets, highlighting the need for robust forecasting models to understand and anticipate price fluctuations during such geopolitical events. This study presents a comprehensive hybrid modeling approach to predict oil prices in the context of Russia and Ukraine across three distinct periods: before the war, during the war, and the immediate aftermath of the conflict. Using advanced machine learning techniques, we developed a hybrid system combining Random Forest, ElasticNet, K\u2010Nearest Neighbors, Gradient Boosting, and Support Vector Regressor models. These models were integrated through a Voting Regressor to enhance prediction accuracy. Our analysis revealed varying levels of predictive performance across the different periods. Prior to the war, the models showed strong predictive capabilities, evidenced by low mean\u2010squared error (MSE) values and high coefficients of determination (\n                    <jats:italic>R<\/jats:italic>\n                    <jats:sup>2<\/jats:sup>\n                    ). However, during the war, the models struggled to capture extreme volatility, resulting in significantly increased MSE and negative\n                    <jats:italic>R<\/jats:italic>\n                    <jats:sup>2<\/jats:sup>\n                    values. Predictions for the immediate aftermath of the conflict demonstrated improvements, with a reduction in MSE and positive\n                    <jats:italic>R<\/jats:italic>\n                    <jats:sup>2<\/jats:sup>\n                    values, indicating a return to relatively more stable market conditions. Notably, combining data from both before the war and war periods could further improve predictive accuracy, as it would reduce the impact of the conflict\u2019s volatility on model performance. These results emphasize the challenges of forecasting oil prices in periods of geopolitical instability and underscore the importance of hybrid modeling approaches to adapt to rapidly changing market dynamics.\n                  <\/jats:p>","DOI":"10.1155\/acis\/8867520","type":"journal-article","created":{"date-parts":[[2025,2,26]],"date-time":"2025-02-26T04:25:00Z","timestamp":1740543900000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Predicting Oil Price Trends During Conflict With Hybrid Machine Learning Techniques"],"prefix":"10.1155","volume":"2025","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-2403-9837","authenticated-orcid":false,"given":"Hicham","family":"Boussatta","sequence":"first","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0009-0004-7210-5941","authenticated-orcid":false,"given":"Marouane","family":"Chihab","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6293-7606","authenticated-orcid":false,"given":"Mohamed","family":"Chiny","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0031-7609","authenticated-orcid":false,"given":"Younes","family":"Chihab","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2025,2,24]]},"reference":[{"key":"e_1_2_11_1_2","doi-asserted-by":"publisher","DOI":"10.3390\/math10224361"},{"key":"e_1_2_11_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jenvman.2023.118446"},{"key":"e_1_2_11_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.apenergy.2022.120194"},{"key":"e_1_2_11_4_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11704-022-2900-0"},{"key":"e_1_2_11_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.eneco.2023.106935"},{"key":"e_1_2_11_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.heliyon.2023.e16527"},{"key":"e_1_2_11_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.resourpol.2023.104319"},{"key":"e_1_2_11_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.eswa.2023.122971"},{"key":"e_1_2_11_9_2","doi-asserted-by":"publisher","DOI":"10.1007\/s10462-023-10568-3"},{"key":"e_1_2_11_10_2","doi-asserted-by":"publisher","DOI":"10.3390\/forecast5010019"},{"key":"e_1_2_11_11_2","doi-asserted-by":"publisher","DOI":"10.1080\/13523260.2023.2259153"},{"key":"e_1_2_11_12_2","doi-asserted-by":"publisher","DOI":"10.2991\/assehr.k.220704.031"},{"key":"e_1_2_11_13_2","doi-asserted-by":"publisher","DOI":"10.3390\/a16020069"},{"key":"e_1_2_11_14_2","doi-asserted-by":"publisher","DOI":"10.56209\/jommerce.v2i2.29"},{"key":"e_1_2_11_15_2","doi-asserted-by":"publisher","DOI":"10.3390\/forecast5020020"},{"key":"e_1_2_11_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.heliyon.2023.e21439"},{"key":"e_1_2_11_17_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0302405"},{"key":"e_1_2_11_18_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.resourpol.2023.104000"},{"key":"e_1_2_11_19_2","unstructured":"FirouzjaeeJ. 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