An unbelievably big number of issues of IEEE Transactions host IEEE Conference
Proceedings as they are. These "papers" are not extended papers of some papers published in an IEEE Conference. They are the papers of the conference.
They are the plain conference proceedings wrapped as IEEE Journals.
This is the biggest IEEE scandal of all epochs
In some other cases, we have found many IEEE journal publications, masquerading as conference proceedings, jamborees, and suchlike, but they are publications, and they do overlap with other publications to the extent that many should be retracted.
It seems that in that world you can get 2-for-1 publications. Just pay the fee!
Copy and past any of the publication codes individually below into the journal box in this site:
Set the "which" box to "both".
Press the "search" button.
Each time you will generate a list of highly overlapping publications.
IEEE PROC NANOBIOTECHNOL
IEEE TRANS BIOMED ENG
IEEE TRANS IMAGE PROCESS
IEEE TRANS INF TECHNOL BIOMED
IEEE TRANS MED IMAGING
IEEE TRANS NANOBIOSCIENCE
IEEE TRANS NEURAL NETW
IEEE TRANS NEURAL SYST REHABIL ENG
IEEE TRANS PATTERN ANAL MACH INTELL
IEEE TRANS REHABIL ENG
IEEE TRANS SYST MAN CYBERN B CYBERN
IEEE TRANS ULTRASON FERROELECTR FREQ CONTROL
IEEE TRANS VIS COMPUT GRAPH
IEEE/ACM TRANS COMPUT BIOL BIOINFORM
IEEE TRANS CONSUMER ELECTRONICS
If you write to IEEE it is a wild-goose chase and they do nothing.