{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,11]],"date-time":"2026-05-11T10:14:40Z","timestamp":1778494480591,"version":"3.51.4"},"reference-count":20,"publisher":"Walter de Gruyter GmbH","issue":"1","license":[{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,1,23]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>In order to improve the analysis effect of the international competitiveness of China\u2019s new energy vehicle industry, this paper combines the improved AHP and grey relational analysis method to analyze the international competitiveness of China\u2019s new energy vehicle industry. This paper uses the quantitative information analysis algorithm of new energy vehicle competitiveness to process the signal data of China\u2019s new energy vehicle industry\u2019s international competitiveness. Moreover, this paper collects data through various channels, and applies the improved AHP and grey relational analysis to the analysis of the international competitiveness of China\u2019s new energy vehicle industry. In addition, this paper proposes an improved SP &amp; SPWVD combined time-frequency distribution algorithm. It combines the long-window short-time Fourier transform (STFT) with better frequency resolution and the short-window STFT with better time resolution to obtain a combined window spectrogram with better time-frequency aggregation. The research results show that when the improved AHP and grey relational analysis method are used in the analysis of the international competitiveness of China\u2019s new energy vehicle industry, the analysis effect of the international competitiveness of China\u2019s new energy vehicle industry can be effectively improved.<\/jats:p>","DOI":"10.1515\/comp-2025-0047","type":"journal-article","created":{"date-parts":[[2026,3,7]],"date-time":"2026-03-07T01:03:48Z","timestamp":1772845428000},"source":"Crossref","is-referenced-by-count":0,"title":["Application of\u00a0improved AHP and\u00a0grey relational analysis in\u00a0the analysis of\u00a0international competitiveness of\u00a0China\u2019s new energy vehicle industry"],"prefix":"10.1515","volume":"16","author":[{"given":"Xiaonan","family":"Jia","sequence":"first","affiliation":[{"name":"Institute of International Economics and Trade , 499170 Liaoning University of International Business and Economics , Dalian , Liaoning , 116052 , China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jiaqi","family":"Bi","sequence":"additional","affiliation":[{"name":"School of Economics , Liaoning University of International Business and Economics , Dalian , Liaoning , 116052 , China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"374","published-online":{"date-parts":[[2026,3,9]]},"reference":[{"key":"2026051109550796834_j_comp-2025-0047_ref_001","doi-asserted-by":"crossref","unstructured":"N. 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