Positive matrix factorization of large real-time atmospheric mass spectrometry datasets using error-weighted randomized hierarchical alternating least squares
Benjamin C. Sapper,Sean Youn,Daven K. Henze,Manjula Canagaratna,Harald Stark,and Jose L. Jimenez
Benjamin C. Sapper
Department of Applied Mathematics, University of Colorado Boulder, 11 Engineering Dr, Boulder, CO 80309, United States
Aerodyne Research, 45 Manning Road, Billerica, MA 01821, United States
Harald Stark
Center for Aerosol and Cloud Chemistry, Aerodyne Research, 45 Manning Road, Billerica, MA 01821, United States
Department of Chemistry and Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder, Boulder, CO 80309, United States
Department of Chemistry and Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder, Boulder, CO 80309, United States
Viewed
Total article views: 6,323 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
BibTeX
EndNote
4,843
1,204
276
6,323
238
426
HTML: 4,843
PDF: 1,204
XML: 276
Total: 6,323
BibTeX: 238
EndNote: 426
Views and downloads (calculated since 20 Dec 2022)
Cumulative views and downloads
(calculated since 20 Dec 2022)
Total article views: 3,852 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
BibTeX
EndNote
3,169
518
165
3,852
126
207
HTML: 3,169
PDF: 518
XML: 165
Total: 3,852
BibTeX: 126
EndNote: 207
Views and downloads (calculated since 19 May 2025)
Cumulative views and downloads
(calculated since 19 May 2025)
Total article views: 2,471 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
BibTeX
EndNote
1,674
686
111
2,471
112
219
HTML: 1,674
PDF: 686
XML: 111
Total: 2,471
BibTeX: 112
EndNote: 219
Views and downloads (calculated since 20 Dec 2022)
Cumulative views and downloads
(calculated since 20 Dec 2022)
Viewed (geographical distribution)
Total article views: 6,323 (including HTML, PDF, and XML)
Thereof 6,136 with geography defined
and 187 with unknown origin.
Total article views: 3,852 (including HTML, PDF, and XML)
Thereof 3,707 with geography defined
and 145 with unknown origin.
Total article views: 2,471 (including HTML, PDF, and XML)
Thereof 2,429 with geography defined
and 42 with unknown origin.
Positive matrix factorization (PMF) has been used by atmospheric scientists to extract underlying factors present in large datasets. This paper presents a new technique for error-weighted PMF that drastically reduces the computational costs of previously developed algorithms. We use this technique to deliver interpretable factors and solution diagnostics from an atmospheric chemistry dataset.
Positive matrix factorization (PMF) has been used by atmospheric scientists to extract...
