Variations in the formula for TCI calculation

[Freundh]

I'm no statistician, so I don't know if these are good ideas, but I had some thoughts about how to calculate TCI.. Perhaps you've already done plenty of experiments and found that the current formula works best. Please don't take this as a complaint about how the site works

I was thinking that intuitively, it feels like my movie taste might be more defined by the movies I love or hate, and less by the ones I don't feel so strongly about. I.e. maybe it would generate even better TCIs if my top and bottom percentiles were weighted more than the ones in the middle?

The second idea I'm even less sure about, but perhaps if you have some kind of test fixture it might be interesting to use a formula similar to RMS instead of just plain average of differences? I think the effect would be that outliers (I mean films that me and the other person have very different rating for) would be have a bigger impact on TCI, and small differences in rating would matter less.

[mpowell]

Thanks for those thoughts!!

We've experimented in the past with ideas similar to this, such as more heavily-weighting titles that are at the very top or bottom of the ratings list. But in the end, the gains didn't seem to be worth the added complexity to the algorithm.

That doesn't mean those ideas are discarded by any means! We've kind of got a permanently-open action item to review and revise our algorithms... right now, though, our focus is on modernizing the site, and we don't want to do anything to make Criticker more difficult to understand.

One thing we'd love to do in the future is allow for more personalization -- like, allowing people to tweak their own TCI algorithms, for example in the ways you're asking about. It'd be a cool way to experiment with live data... and would really help us learn what works best!

[Freundh]

No worries, it was just some random thoughts and I wanted to throw them out there in case you wanted some inspiration for things to test

If you're working on making the site more accessible, please make it easier to find the import page.. I still don't know where it is so I have to use google to get to it

[tev]

If you're working on making the site more accessible, please make it easier to find the import page.. I still don't know where it is so I have to use google to get to it

"Resources" menu - then "Feeds and More" - then in the "Import Your Scores" heading, "Go to the Import Tool" link

[Freundh]

Ah, it was hiding behind the "and more" Thanks!

[paulofilmo]

I love this,, it's similar to how I use kumpels (i think).

i was thinking how a small test batch would turn out, and how could it possibly not be an improvement(?)