{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,25]],"date-time":"2026-06-25T07:47:59Z","timestamp":1782373679064,"version":"3.54.5"},"reference-count":21,"publisher":"World Scientific Pub Co Pte Ltd","issue":"09","funder":[{"name":"the Central Universities, Jiangsu Province Natural Science Foundation","award":["BE2016805"],"award-info":[{"award-number":["BE2016805"]}]},{"name":"The Spark Program of Earthquake Technology of CEA","award":["XH17013"],"award-info":[{"award-number":["XH17013"]}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation","doi-asserted-by":"crossref","award":["61503081"],"award-info":[{"award-number":["61503081"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation","doi-asserted-by":"crossref","award":["61473079"],"award-info":[{"award-number":["61473079"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Patt. Recogn. Artif. Intell."],"published-print":{"date-parts":[[2020,8]]},"abstract":"<jats:p> In this paper, in order to figure out the variations before an earthquake and extract abnormal signals related to it, the geomagnetic three component Z, H, F minute values of 15 geomagnetic stations within 600[Formula: see text]km of the epicentral distance before the MS 6.6 Minxian\u2013Zhangxian earthquake in Gansu were analyzed. The following are the results. (1) After the fractal analysis was used directly, only three geomagnetic stations in 15 geomagnetic stations showed synchronous anomalous signals; (2) After the method of this paper was used, 9 of the 15 geomagnetic stations (including the three stations in the first point) extracted two synchronous anomalous signals, and six of the nine geomagnetic stations presented additional synchronous anomalous signals. (3) Of the three abnormal signals extracted, one had a medium-term effect and two had short-term effects. (4) The anomalous duration of the Z component of nine geomagnetic stations was longer than that of H and F. And as the epicentral distance increased, duration decreased. While the proposed method could not clearly indicate the exact relationship between the anomalous signals and the earthquake, it was proved that the signals extracted are effective and well-correlative to the earthquake. <\/jats:p>","DOI":"10.1142\/s0218001420580112","type":"journal-article","created":{"date-parts":[[2019,10,18]],"date-time":"2019-10-18T03:11:41Z","timestamp":1571368301000},"page":"2058011","source":"Crossref","is-referenced-by-count":1,"title":["Analysis of Geomagnetic Signals Based on Wavelet Transform and Fractal Algorithm"],"prefix":"10.1142","volume":"34","author":[{"given":"Yong","family":"Lu","sequence":"first","affiliation":[{"name":"Earthquake Administration of Jiangsu Province, Nanjing 210014, P.\u00a0R.\u00a0China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4573-6789","authenticated-orcid":false,"given":"Yongming","family":"Huang","sequence":"additional","affiliation":[{"name":"School of Automation, Southeast University, Nanjing 210096, P.\u00a0R.\u00a0China"},{"name":"Key Laboratory of Measurement and Control of CSE (School of Automation, Southeast University), Ministry of Education, Nanjing 210096, P.\u00a0R.\u00a0China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Automation, Southeast University, Nanjing 210096, P.\u00a0R.\u00a0China"},{"name":"Key Laboratory of Measurement and Control of CSE (School of Automation, Southeast University), Ministry of Education, Nanjing 210096, P.\u00a0R.\u00a0China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Xue","sequence":"additional","affiliation":[{"name":"School of Automation, Southeast University, Nanjing 210096, P.\u00a0R.\u00a0China"},{"name":"Key Laboratory of Measurement and Control of CSE (School of Automation, Southeast University), Ministry of Education, Nanjing 210096, P.\u00a0R.\u00a0China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guobao","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Automation, Southeast University, Nanjing 210096, P.\u00a0R.\u00a0China"},{"name":"Key Laboratory of Measurement and Control of CSE (School of Automation, Southeast University), Ministry of Education, Nanjing 210096, P.\u00a0R.\u00a0China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"219","published-online":{"date-parts":[[2019,12,30]]},"reference":[{"issue":"4","key":"S0218001420580112BIB001","first-page":"7","volume-title":"Earthquake","author":"Ding J.","year":"1994"},{"key":"S0218001420580112BIB002","volume-title":"Introduction to Seismological Magnetism","author":"Ding J.","year":"2011"},{"issue":"3","key":"S0218001420580112BIB003","first-page":"765","volume":"37","author":"Han B.","year":"2015","journal-title":"Seismol. Geol."},{"issue":"6","key":"S0218001420580112BIB004","first-page":"1556","volume":"52","author":"Han P.","year":"2009","journal-title":"Chin. J. Geophys."},{"key":"S0218001420580112BIB005","first-page":"577","volume-title":"Nonlinear Process. Geophys.","author":"Ida Y.","year":"2013"},{"issue":"3","key":"S0218001420580112BIB006","first-page":"62","volume":"32","author":"He K.","year":"2011","journal-title":"Earthq. Geomagn. Obs. Res."},{"key":"S0218001420580112BIB007","doi-asserted-by":"publisher","DOI":"10.5194\/npg-13-409-2006"},{"issue":"3","key":"S0218001420580112BIB008","first-page":"551","volume":"39","author":"Li H.","year":"2017","journal-title":"J. Earthq. Eng."},{"key":"S0218001420580112BIB009","doi-asserted-by":"publisher","DOI":"10.3390\/e20090691"},{"key":"S0218001420580112BIB010","doi-asserted-by":"publisher","DOI":"10.1016\/j.jseaes.2017.12.036"},{"issue":"22","key":"S0218001420580112BIB011","first-page":"33","volume":"52","author":"Qin J.","year":"2016","journal-title":"Comput. Eng. Applic."},{"key":"S0218001420580112BIB012","doi-asserted-by":"publisher","DOI":"10.1109\/ICEAA.2015.7297287"},{"issue":"1","key":"S0218001420580112BIB013","first-page":"35","author":"Wang B.","year":"1990","journal-title":"Sichuan Earthquake"},{"key":"S0218001420580112BIB014","doi-asserted-by":"publisher","DOI":"10.1126\/sciadv.1501057"},{"issue":"4","key":"S0218001420580112BIB015","first-page":"51","author":"Yu H.","year":"2009","journal-title":"Int. J. Seismol."},{"key":"S0218001420580112BIB016","doi-asserted-by":"publisher","DOI":"10.1002\/cjg2.1322"},{"issue":"1","key":"S0218001420580112BIB017","first-page":"38","volume":"31","author":"Zhang X.","year":"2011","journal-title":"Geodetic Geodyn."},{"issue":"6","key":"S0218001420580112BIB018","first-page":"32","volume":"31","author":"Zhang J.","year":"2011","journal-title":"Geodetic and Geodyn."},{"key":"S0218001420580112BIB020","doi-asserted-by":"publisher","DOI":"10.1029\/JA091iA01p00347"},{"key":"S0218001420580112BIB021","doi-asserted-by":"publisher","DOI":"10.1016\/0167-2789(88)90081-4"},{"key":"S0218001420580112BIB022","doi-asserted-by":"publisher","DOI":"10.1016\/j.pce.2003.11.013"}],"container-title":["International Journal of Pattern Recognition and Artificial Intelligence"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.worldscientific.com\/doi\/pdf\/10.1142\/S0218001420580112","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,8,26]],"date-time":"2020-08-26T04:21:53Z","timestamp":1598415713000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.worldscientific.com\/doi\/abs\/10.1142\/S0218001420580112"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,12,30]]},"references-count":21,"journal-issue":{"issue":"09","published-print":{"date-parts":[[2020,8]]}},"alternative-id":["10.1142\/S0218001420580112"],"URL":"https:\/\/doi.org\/10.1142\/s0218001420580112","relation":{},"ISSN":["0218-0014","1793-6381"],"issn-type":[{"value":"0218-0014","type":"print"},{"value":"1793-6381","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,12,30]]}}}