{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,2]],"date-time":"2026-05-02T06:53:19Z","timestamp":1777704799056,"version":"3.51.4"},"reference-count":23,"publisher":"SAGE Publications","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IFS"],"published-print":{"date-parts":[[2021,1,4]]},"abstract":"<jats:p>BP (Back Propagation) neural network has been widely applied for classification tasks including road condition evaluation, however, BP model has the problem of lower accuracy and slow convergence rate. A novel road condition evaluation method based on BA-BP (Bat-Back Propagation) algorithm is proposed for the unstructured small road condition evaluation, which filled the vacancy of specific small road scenes. Firstly, five kinds of road condition features including roughness, curvature, obstacle width to height ratio, obstacle effective area ratio, obstacle coefficient are defined and extracted. Then obstacles from region of interest (ROI) in front of the vehicle are analyzed. Finally, Bat algorithm is used to optimize the searching of initial network weights and thresholds, which obtained a higher accuracy of 95.15% and efficient training process. Comparison experiments showed that the proposed approach improved the accuracy with 5.31%, 3.32%, 3.17% than the BP, GA-BP and FA-BP model, respectively. As for the processing time of collected road data, BA-BP network consumed less time of 2\u200as and 3.9\u200as compared with GA-BP and FA-BP. Proposed method also outperformed than most of the state-of-the-art approaches with higher accuracy and simpler hardware environments, which proved its potential of being popularized in large scale real-time systems.<\/jats:p>","DOI":"10.3233\/jifs-191707","type":"journal-article","created":{"date-parts":[[2020,12,1]],"date-time":"2020-12-01T15:38:57Z","timestamp":1606837137000},"page":"331-348","source":"Crossref","is-referenced-by-count":4,"title":["Evaluation of road condition based on BA-BP algorithm"],"prefix":"10.1177","volume":"40","author":[{"given":"Dongyao","family":"Jia","sequence":"first","affiliation":[{"name":"Advanced Control Institute, School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chuanwang","family":"Zhang","sequence":"additional","affiliation":[{"name":"Advanced Control Institute, School of Electronic and Information Engineering, Beijing Jiaotong 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