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: 6,673 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
BibTeX
EndNote
5,045
1,310
318
6,673
272
461
HTML: 5,045
PDF: 1,310
XML: 318
Total: 6,673
BibTeX: 272
EndNote: 461
Views and downloads (calculated since 20 Dec 2022)
Cumulative views and downloads
(calculated since 20 Dec 2022)
Total article views: 4,113 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
BibTeX
EndNote
3,332
582
199
4,113
154
235
HTML: 3,332
PDF: 582
XML: 199
Total: 4,113
BibTeX: 154
EndNote: 235
Views and downloads (calculated since 19 May 2025)
Cumulative views and downloads
(calculated since 19 May 2025)
Total article views: 2,560 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
BibTeX
EndNote
1,713
728
119
2,560
118
226
HTML: 1,713
PDF: 728
XML: 119
Total: 2,560
BibTeX: 118
EndNote: 226
Views and downloads (calculated since 20 Dec 2022)
Cumulative views and downloads
(calculated since 20 Dec 2022)
Viewed (geographical distribution)
Total article views: 6,673 (including HTML, PDF, and XML)
Thereof 6,486 with geography defined
and 187 with unknown origin.
Total article views: 4,113 (including HTML, PDF, and XML)
Thereof 3,968 with geography defined
and 145 with unknown origin.
Total article views: 2,560 (including HTML, PDF, and XML)
Thereof 2,518 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...
