JCTAM OPEN ACCESS

Journal of Computer Technology and Applied Mathematics

ISSN:3007-4126 (print) | ISSN:3007-4134 (online) | Publication Frequency: Bimonthly

OPEN ACCESS|Research Article||5 January 2026

Bottleneck Diagnosis in International Automotive Sales Funnels Using Gradient Boosting Trees: Evidence from Cross-Regional Team Efficiency Evaluation

Ziren Zhou

Chinese Academy of Social Sciences

judynov@outlook.com

M.S. in Business Administration, Chinese Academy of Social Sciences, Beijing, China.

* Corresponding Author1: Ziren Zhou, E-Mail: judynov@outlook.com

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Journal of Computer Technology and Applied Mathematics (JCTAM)
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