I can read the semantic meaning of conference and journal papers, even the details regarding their general structures: journal papers are longer than the conference ones, conference papers are easier to get accepted but the study is less deep, a journal paper is a gathering of several small discovers (brought by several conferences?).
But this is not always the case, right? Sometimes conference papers extend quite a bit to 14–16 pages, and I have read journal papers of 10 to 12 pages normally. Is there a way to systematically recognize by simple quick reading whether a paper is a journal or a conference one?
I'm new on research, I have been recommended IEEE Xplore, ScienceDirect, and ResearchGate, I know they have the option to search for journal or conference papers, but when a labmate delivers to you a bulk of papers to be analyzed I'd like to be able to differentiate between them.