I literally just did the exact same. I'm totally unmotivated by this game if this kind of connection isn't what it is looking for.

"Investment" --> "Capital"

Check. That worked.

"Capital" --> "Letter"

Did not work at all. And yet the two words are side-by-side with extreme frequency.

So, basically, I don't know how this game gauges relatedness. I do know that I don't like it.

Semantic similarity means similarity of meaning, not how frequently they appear together.

Try out semantle to get a better sense of it if it's not immediately intuitive what I mean by that.

I also did waves. I needed amplitude to bridge the gap to radio.

I also had a random one:

Heat -> bar

I went with pressure, since it is related to heat obviously, and a bar is a unit of pressure. But it didn’t like the second one.

I wonder if there’s a homonym issue, or if I just don’t understand word embeddings.

interesting, I did that just now (with out having seen your comment) and got 13% and 33% (for future reference this comment is being made about an hour after parent)

Edit: oh wait I nevermind wave/waves

Did you really? I just did it just now (9 minutes after your comment) and got 19% and 55%.

I tried the same guess, and felt the same confusion. Whatever quality it is that the relatedness factor measures doesn't seem to align well with my sense of word association.