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: 3,278 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
BibTeX
EndNote
2,836
377
65
3,278
74
135
HTML: 2,836
PDF: 377
XML: 65
Total: 3,278
BibTeX: 74
EndNote: 135
Views and downloads (calculated since 20 Dec 2022)
Cumulative views and downloads
(calculated since 20 Dec 2022)
Total article views: 2,273 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
BibTeX
EndNote
2,174
77
22
2,273
34
90
HTML: 2,174
PDF: 77
XML: 22
Total: 2,273
BibTeX: 34
EndNote: 90
Views and downloads (calculated since 19 May 2025)
Cumulative views and downloads
(calculated since 19 May 2025)
Total article views: 1,005 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
BibTeX
EndNote
662
300
43
1,005
40
45
HTML: 662
PDF: 300
XML: 43
Total: 1,005
BibTeX: 40
EndNote: 45
Views and downloads (calculated since 20 Dec 2022)
Cumulative views and downloads
(calculated since 20 Dec 2022)
Viewed (geographical distribution)
Total article views: 3,278 (including HTML, PDF, and XML)
Thereof 3,147 with geography defined
and 131 with unknown origin.
Total article views: 2,273 (including HTML, PDF, and XML)
Thereof 2,169 with geography defined
and 104 with unknown origin.
Total article views: 1,005 (including HTML, PDF, and XML)
Thereof 978 with geography defined
and 27 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...
