Mermaid Forest OAV
Rating Average: 3.0000Rating Stddev: 0
Review Count: 1
Existing Best Bet #: 3
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 3.0000 - 0 ) + ( 0 / 1.6094379124341 )
( 3 ) - 0
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 3.0000 - 0 ) - 0.5 ) * $similarity
( 3 - 0.5 ) * $similarity
2.5 * $similarity
In English: Average rating minus half the standard deviation of the ratings, with a penalty of half a rating point if there are fewer then five reviews with no variation in their ratings.
Discussion: This uses the average rating as the base, lowering the overall rating based on the amount of variance in the ratings. Additionally it lowers the rating if only a few people have rated it and they've all given it the same score. Perhaps shows with few ratings shouldn't even show up in best bets.
Keywords: 7 - 1991, Drama, Horror, OVA, Fantasy, Dark, Fragmentary
For reference, Devil Doll's similarity calc is this:
( $matching_keys * ( $matching_keys / $total_keys ) * $total_keys ) / ( $total_keys * $total_keys )
| Title | Key Match | Rating | Rating - stddev | Devil Doll's Similarity Calc | New bbet | New bbet * Similarity | Old bbet | Old bbet * Similarity |
|---|---|---|---|---|---|---|---|---|
| Ningyo no Kizu | 5 | 3.50 | 3.25 | 51% | 3.25 | 1.66 | 3.43 | 1.75 |
| Cossette no Shouzou | 5 | 3.00 | 2.65 | 51% | 2.65 | 1.35 | 3.15 | 1.61 |
| Vampire Hunter | 5 | 3.00 | 3.00 | 51% | 2.50 | 1.28 | 3.00 | 1.53 |
| Interlude | 4 | 3.75 | 3.53 | 32% | 3.53 | 1.15 | 4.18 | 1.36 |
| Silent Mobius The Motion Picture 2 | 5 | 2.50 | 2.25 | 51% | 2.25 | 1.15 | 2.43 | 1.24 |
| Jigoku Shoujo Futakomori | 4 | 4.00 | 4.00 | 32% | 3.50 | 1.14 | 4.68 | 1.53 |
| Death Note | 4 | 4.00 | 4.00 | 32% | 3.50 | 1.14 | 4.86 | 1.59 |
| Kigeki | 4 | 4.00 | 4.00 | 32% | 3.50 | 1.14 | 4.00 | 1.31 |
| Silent Mobius The Motion Picture 1 | 6 | 2.00 | 2.00 | 73% | 1.50 | 1.10 | 2.43 | 1.79 |
| Jigoku Shoujo | 4 | 3.60 | 3.36 | 32% | 3.36 | 1.10 | 4.11 | 1.34 |
| Puella Magi Madoka Magica (TV) | 4 | 3.50 | 3.25 | 32% | 3.25 | 1.06 | 3.86 | 1.26 |
| 3x3 Eyes | 4 | 3.50 | 3.16 | 32% | 3.16 | 1.03 | 4.26 | 1.39 |
| Tenshi Kinryouku | 4 | 3.09 | 2.69 | 32% | 2.69 | 0.88 | 3.79 | 1.24 |
| Hakkenden | 4 | 3.00 | 2.68 | 32% | 2.68 | 0.88 | 3.37 | 1.10 |
| Higurashi no Naku Koro ni Rei | 4 | 3.00 | 3.00 | 32% | 2.50 | 0.82 | 3.00 | 0.98 |
| Youma | 4 | 2.75 | 2.34 | 32% | 2.34 | 0.76 | 2.78 | 0.91 |
| Silent Mobius | 4 | 2.80 | 2.22 | 32% | 2.22 | 0.72 | 2.63 | 0.86 |
| Chrono Crusade | 3 | 3.89 | 3.73 | 18% | 3.73 | 0.69 | 4.94 | 0.91 |
| Arslan Senki | 4 | 2.33 | 2.10 | 32% | 2.10 | 0.68 | 2.54 | 0.83 |
| Dance In The Vampire Bund | 4 | 2.25 | 2.03 | 32% | 2.03 | 0.66 | 2.68 | 0.87 |
| La Blue Girl | 3 | 3.80 | 3.60 | 18% | 3.60 | 0.66 | 4.40 | 0.81 |
| MEMORIES | 3 | 3.75 | 3.53 | 18% | 3.53 | 0.65 | 4.18 | 0.77 |
| Death Parade | 3 | 4.00 | 4.00 | 18% | 3.50 | 0.64 | 4.00 | 0.73 |
| Mouryou no Hako | 3 | 4.00 | 4.00 | 18% | 3.50 | 0.64 | 4.00 | 0.73 |
| Fullmetal Alchemist OVA1: the Blind Alchemist | 3 | 4.00 | 4.00 | 18% | 3.50 | 0.64 | 4.00 | 0.73 |
| Gekijō-ban Mahō Shōjo Madoka Magica Zenpen: Hajimari no Monogatari | 3 | 4.00 | 4.00 | 18% | 3.50 | 0.64 | 4.00 | 0.73 |
| Gekijō-ban Mahō Shōjo Madoka Magica Kōhen: Eien no Monogatari | 3 | 4.00 | 4.00 | 18% | 3.50 | 0.64 | 4.00 | 0.73 |
| Yakusoku no Neverland | 3 | 4.00 | 4.00 | 18% | 3.50 | 0.64 | 4.00 | 0.73 |
| Black Jack Final | 3 | 4.00 | 4.00 | 18% | 3.50 | 0.64 | 4.00 | 0.73 |
| X (TV) | 3 | 3.75 | 3.47 | 18% | 3.47 | 0.64 | 4.91 | 0.90 |
| Lodoss Tou Senki (OAV) | 3 | 3.67 | 3.43 | 18% | 3.43 | 0.63 | 4.74 | 0.87 |
| Legend of the Galactic Heroes | 3 | 3.67 | 3.43 | 18% | 3.43 | 0.63 | 3.88 | 0.71 |
| Karas | 3 | 3.67 | 3.43 | 18% | 3.43 | 0.63 | 3.88 | 0.71 |
| Shihaisha no Tasogare | 4 | 2.33 | 1.86 | 32% | 1.86 | 0.61 | 2.50 | 0.82 |
| Demon City Shinjuku | 4 | 2.33 | 1.86 | 32% | 1.86 | 0.61 | 2.07 | 0.68 |
| Ayakashi - Japanese Classic Horror | 3 | 3.50 | 3.25 | 18% | 3.25 | 0.60 | 3.43 | 0.63 |
| Fushigi no Umi no Nadia | 3 | 3.50 | 3.25 | 18% | 3.25 | 0.60 | 3.86 | 0.71 |
| Loveless (TV) | 3 | 3.50 | 3.25 | 18% | 3.25 | 0.60 | 3.43 | 0.63 |
| Higurashi no Naku Koro ni Kai | 3 | 3.50 | 3.25 | 18% | 3.25 | 0.60 | 3.43 | 0.63 |
| Hagane no Renkinjutsushi | 3 | 3.57 | 3.21 | 18% | 3.21 | 0.59 | 4.48 | 0.82 |
| Naruto | 3 | 3.62 | 3.20 | 18% | 3.20 | 0.59 | 4.87 | 0.89 |
| Kyuuketsuki Miyu (OVA) | 3 | 3.50 | 3.10 | 18% | 3.10 | 0.57 | 4.12 | 0.76 |
| Monster | 3 | 3.50 | 3.07 | 18% | 3.07 | 0.56 | 3.50 | 0.64 |
| Chaos;Head | 3 | 3.25 | 3.03 | 18% | 3.03 | 0.56 | 3.68 | 0.68 |
| Kurozuka | 4 | 2.25 | 1.71 | 32% | 1.71 | 0.56 | 2.02 | 0.66 |
| Mononoke Hime | 3 | 3.42 | 3.02 | 18% | 3.02 | 0.56 | 4.76 | 0.87 |
| Mamono Hunter Youko | 3 | 3.00 | 3.00 | 18% | 3.00 | 0.55 | 4.00 | 0.73 |
| Kidou Senshi Gundam 0083: Stardust Memory | 3 | 3.33 | 2.96 | 18% | 2.96 | 0.54 | 3.70 | 0.68 |
| Bleach | 3 | 3.43 | 2.90 | 18% | 2.90 | 0.53 | 3.59 | 0.66 |
| Ima Soko ni Iru Boku | 3 | 3.33 | 2.86 | 18% | 2.86 | 0.53 | 3.07 | 0.56 |
