Every research method, explained.
6,620 methods across 190 fields — what each one is, how it works, when to use it, and the source it comes from.
TOPSIS
Technique for Order of Preference by Similarity to Ideal Solution
TOPSIS (Technique for Order of Preference by Similarity to Ideal Solution) is a ranking multi-criteria decision-making (MCDM) method introduced by Hwang, C. L., Yoon, K. in 1981. It turns a decision matrix of alternatives scored on multiple criteria into a structured, reproducible result.
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190 fields, 6,620 methods
From decision science to spatial analysis — every entry is structured the same way, so you always know where to look.
What every page gives you
Built like a method monograph
Each entry follows the same rigorous structure — so a method you've never seen reads as clearly as one you know by heart.
Why researchers trust it
Reference-grade, not blog-grade
Grounded in sources
Every method traces back to the paper or book that introduced it — cited with DOI or ISBN, never paraphrased from memory.
Faithful formulas
Equations are transcribed directly from seminal works and audited against the original notation, step by step.
Built to grow
An expanding catalogue across 190 fields, structured for multilingual delivery and continuous review.
From learning to doing
Read the method, then run it on your data.
Every page links to a companion tool in the ScholarGate ecosystem — so the moment a method clicks, you can apply it without leaving the idea behind.