{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,8]],"date-time":"2025-02-08T03:40:14Z","timestamp":1738986014119,"version":"3.37.0"},"edition-number":"1","reference-count":75,"publisher":"Wiley","isbn-type":[{"type":"print","value":"9780471383932"},{"type":"electronic","value":"9780470050118"}],"license":[{"start":{"date-parts":[[2009,3,16]],"date-time":"2009-03-16T00:00:00Z","timestamp":1237161600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The self\u2010organizing map (SOM) algorithm, originally introduced by Teuvo Kohonen, has seen an incredible range of applications, especially because of its unique abilities to cluster and visualize high\u2010dimensional data. The data are projected onto a topographic map, a discrete lattice that locally approximates the data manifold. Several adaptations to the original concept have been introduced, but one that uses kernels to represent the local density of the manifold has received much attention. In this way, one expects that clusters in the data can be better visualized in the topographic map. For these kernel\u2010based topographic maps, kernel topographic maps, or probabilistic topographic maps, several learning principles have been proposed, mostly for Gaussian kernels. We review these learning algorithms, distinguish between homoscedastic and heteroscedastic Gaussian kernels with a focus on fixed point rules, and show some successful applications.<\/jats:p>","DOI":"10.1002\/9780470050118.ecse365","type":"other","created":{"date-parts":[[2009,3,9]],"date-time":"2009-03-09T17:48:02Z","timestamp":1236620882000},"page":"1633-1650","source":"Crossref","is-referenced-by-count":4,"title":["Kernel\u2010Based Topographic Maps: Theory and Applications"],"prefix":"10.1002","author":[{"given":"Marc M.","family":"Van Hulle","sequence":"first","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2009,3,16]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1113\/jphysiol.1961.sp006803"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/cne.901990302"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1523\/JNEUROSCI.08-06-01831.1988"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1152\/jn.1957.20.4.408"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.107591"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1152\/jn.1975.38.2.231"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.482944"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00288907"},{"volume-title":"Faithful representations and topographic maps: From distortion\u2010 to information\u2010based self\u2010organization","year":"2000","author":"Hulle M. 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