{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,8]],"date-time":"2026-02-08T04:52:59Z","timestamp":1770526379328,"version":"3.49.0"},"reference-count":24,"publisher":"Hindawi Limited","license":[{"start":{"date-parts":[[2015,1,1]],"date-time":"2015-01-01T00:00:00Z","timestamp":1420070400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Science and Technology Plan Project of National Bureau of Quality Inspection","award":["2013QK104"],"award-info":[{"award-number":["2013QK104"]}]},{"name":"Science and Technology Plan Project of National Bureau of Quality Inspection","award":["2013ynzjkj02"],"award-info":[{"award-number":["2013ynzjkj02"]}]},{"name":"Science and Technology Plan Project of Quality and Technical Supervision Bureau in Yunnan Province","award":["2013QK104"],"award-info":[{"award-number":["2013QK104"]}]},{"name":"Science and Technology Plan Project of Quality and Technical Supervision Bureau in Yunnan Province","award":["2013ynzjkj02"],"award-info":[{"award-number":["2013ynzjkj02"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Electrical and Computer Engineering"],"published-print":{"date-parts":[[2015]]},"abstract":"<jats:p>Several common elevator malfunctions were diagnosed with a least square support vector machine (LS-SVM). After acquiring vibration signals of various elevator functions, their energy characteristics and time domain indicators were extracted by theoretically analyzing the optimal wavelet packet, in order to construct a feature vector of malfunctions for identifying causes of the malfunctions as input of LS-SVM. Meanwhile, parameters about LS-SVM were optimized by K-fold cross validation (K-CV). After diagnosing deviated elevator guide rail, deviated shape of guide shoe, abnormal running of tractor, erroneous rope groove of traction sheave, deviated guide wheel, and tension of wire rope, the results suggested that the LS-SVM based on K-CV optimization was one of effective methods for diagnosing elevator malfunctions.<\/jats:p>","DOI":"10.1155\/2015\/935038","type":"journal-article","created":{"date-parts":[[2015,12,2]],"date-time":"2015-12-02T21:04:08Z","timestamp":1449090248000},"page":"1-8","source":"Crossref","is-referenced-by-count":18,"title":["Diagnosis of Elevator Faults with LS-SVM Based on Optimization by K-CV"],"prefix":"10.1155","volume":"2015","author":[{"given":"Zhou","family":"Wan","sequence":"first","affiliation":[{"name":"Kunming University of Science and Technology, Kunming, Yunnan 650500, China"}]},{"given":"Shilin","family":"Yi","sequence":"additional","affiliation":[{"name":"Kunming University of Science and Technology, Kunming, Yunnan 650500, 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