Jellyfin: The Free Software Media System @lemmy.ml CubitOom @infosec.pub 6mo ago

We might need to add some more logic to the recommendation algorithm

I love Jellyfin. I did think these recommendations were a bit funny however since they were so off.

Maybe the recommendations need to also look at the movies mpaa rating? Like something PG shouldn't be recommended after watching an R and especially not vice versa.

I guess it becomes complex quickly if you want to add other rating systems to the mix.

14 comments

How much content do you have? It can only do so much when the options are few lol
- Just over 1000 fims
I actually saw A Boy and His Dog, and I’d categorize it as post-apocalyptic turbo-misogyny. The ’70s are a foreign country; they do things differently there.
- Fun fact about A Boy and His Dog: it's one of the primary influences (actually probably THE primary influence) of the Fallout games and their setting. In that sense, much of it is a criticism of Cold War American culture. All of the horrible stuff done to women in that movie is not an endorsement of it, but more of a direct criticism of the underlying misogyny in American culture. Also, it's based on a Harlan Ellison novella. Or collection of them, rather.
  
  Totally, I saw the fallout show and decided to re-watch a boy and his dog.
- Permanently Deleted
Heh. Jellyfin sees "Inside Out" very differently than I did...
Man cashback is such a good movie. I’m legit surprised to see it pop up randomly on a post here! Excellent taste! I’m gonna have to go rewatch that now.
Hey, I've worked in the recommendations/similarity calculations. Could you post a screenshot of the detail page for Inside Out? I suspect your media doesn't have associated metadata (e.g. tmdb tags) that are used to power similarity calculations.
- I'm not 100% sure what the detail page is but here is the page I see when selected.
  
  I think I have Jellyfin mostly at the default setings, with one exception. I did change the name of the key for the rating variable in the metadata to be 'MPAA rating' instead of the default which I think was 'rating' before since I found it confusing. So if the current recommendation calculation is using that variable then I guess it would be null for all my media.
  
  Also, here is the metadata jellyfin shows.
  
  Inside Out (2015) Container: mkv Path: /mnt/ext4/film/film/Movies/Inside Out (2015).mkv Size: 5022 MB Subtitle Title: Italiano Forced - Default - SUBRIP Language: ita Codec: SUBRIP Default: Yes Forced: Yes External: No Video Title: Video 2160p - 4K - HEVC - HDR Codec: HEVC Profile: Main 10 Level: 150 Resolution: 3840x2160 Aspect ratio: 16:9 Interlaced: No Framerate: 23.976025 Bitrate: 7401 kbps Bit depth: 10 bit Video range: HDR Video range type: HDR10 DV title: DV Profile 8.1 (HDR10) DV version major: 1 DV version minor: 0 DV profile: 8 DV level: 6 DV rpu preset flag: 1 DV el preset flag: 0 DV bl preset flag: 1 DV bl signal compatibility id: 1 Color space: bt2020nc Color transfer: smpte2084 Color primaries: bt2020 Pixel format: yuv420p10le Ref frames: 1 Audio Title: Italiano AC-3 5.1 - Dolby Digital - Default Language: ita Codec: AC3 Layout: 5.1 Channels: 6 ch Bitrate: 448 kbps Sample rate: 48000 Hz Default: Yes Forced: No External: No Audio Title: English AC-3 5.1 - Dolby Digital Language: eng Codec: AC3 Layout: 5.1 Channels: 6 ch Bitrate: 640 kbps Sample rate: 48000 Hz Default: No Forced: No External: No Subtitle Title: English Forced - SUBRIP Language: eng Codec: SUBRIP Default: No Forced: No External: No Subtitle Title: Italiano - SUBRIP Language: ita Codec: SUBRIP Default: No Forced: No External: No Subtitle Title: English - SUBRIP Language: eng Codec: SUBRIP Default: No Forced: No External: No
  
  PS: I scrape my metadata from themoviedb.org in Kodi and then export that to an xml file of the same name, Jellyfin seems to find and use that.
  
  https://github.com/jellyfin/jellyfin/blob/31aa44d23d12b5dbb5f9a131242cc82c9ef98f24/Emby.Server.Implementations/Data/SqliteItemRepository.cs#L2279 is what's discovering similar content. If the InheritedParentalRatingValue is considered zero, it's only going to match other content with the same value. Can you elaborate on "I did change the name of the key for the rating variable in the metadata to be ‘MPAA rating’ instead of the default which I think was ‘rating’ before since I found it confusing."? I suspect we're zeroing (ha ha) in on the problem.
Huh. I saw cashback many years ago on tv or something but could never figure out the name even after a lot of googling. And here we are I've finally found it thanks to you. Maybe I'll give it another watch. For a long time I've thought about the thing of not looking at the clock when doing unpleasant activities. Thanks!
- It's a pretty decent movie. Towards the end it kind of goes off the path it started on but otherwise a good watch.

14 comments