Vinland Saga
Rating Average: 4.0000Rating Stddev: 0
Review Count: 1
Existing Best Bet #: 4
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 4.0000 - 0 ) + ( 0 / 1.6094379124341 )
( 4 ) - 0
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 4.0000 - 0 ) - 0.5 ) * $similarity
( 4 - 0.5 ) * $similarity
3.5 * $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: 5 - 2019, Adventure, TV, Historical, Seinen
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 |
|---|---|---|---|---|---|---|---|---|
| Juuni Kokuki | 4 | 3.90 | 3.75 | 64% | 3.75 | 2.40 | 5.03 | 3.22 |
| Samurai Champloo | 4 | 3.33 | 3.00 | 64% | 3.00 | 1.92 | 4.03 | 2.58 |
| Interlude | 3 | 3.75 | 3.53 | 36% | 3.53 | 1.27 | 4.18 | 1.50 |
| Rozen Maiden | 3 | 3.75 | 3.53 | 36% | 3.53 | 1.27 | 4.61 | 1.66 |
| Tengoku Dai Makyō | 3 | 4.00 | 4.00 | 36% | 3.50 | 1.26 | 4.00 | 1.44 |
| Golden Kamuy | 3 | 4.00 | 4.00 | 36% | 3.50 | 1.26 | 4.00 | 1.44 |
| Sanzoku no Musume Ronja | 3 | 4.00 | 4.00 | 36% | 3.50 | 1.26 | 4.00 | 1.44 |
| Dororo | 3 | 4.00 | 4.00 | 36% | 3.50 | 1.26 | 4.00 | 1.44 |
| Mushishi: Zoku-Shō: Suzu no Shizuku | 3 | 4.00 | 4.00 | 36% | 3.50 | 1.26 | 4.00 | 1.44 |
| Golden Kamuy 2 | 3 | 4.00 | 4.00 | 36% | 3.50 | 1.26 | 4.00 | 1.44 |
| Golden Kamuy 4 | 3 | 4.00 | 4.00 | 36% | 3.50 | 1.26 | 4.00 | 1.44 |
| Sarazanmai | 3 | 4.00 | 4.00 | 36% | 3.50 | 1.26 | 4.00 | 1.44 |
| Golden Kamuy 3 | 3 | 4.00 | 4.00 | 36% | 3.50 | 1.26 | 4.00 | 1.44 |
| Made in Abyss: Retsujitsu no Ougonkyou | 3 | 4.00 | 4.00 | 36% | 3.50 | 1.26 | 4.00 | 1.44 |
| Vinland Saga Season 2 | 3 | 4.00 | 4.00 | 36% | 3.50 | 1.26 | 4.00 | 1.44 |
| Dorohedoro | 3 | 4.00 | 4.00 | 36% | 3.50 | 1.26 | 4.00 | 1.44 |
| Kanata no Astra | 3 | 4.00 | 4.00 | 36% | 3.50 | 1.26 | 4.00 | 1.44 |
| Sarai-ya Goyou | 3 | 3.50 | 3.25 | 36% | 3.25 | 1.17 | 3.43 | 1.24 |
| Tate no Yuusha no Nariagari | 3 | 3.50 | 3.25 | 36% | 3.25 | 1.17 | 3.43 | 1.24 |
| Rurouni Kenshin: Meiji Kenkaku Romantan | 3 | 3.62 | 3.24 | 36% | 3.24 | 1.17 | 4.95 | 1.78 |
| Nijuu-Mensou no Musume | 3 | 3.33 | 3.10 | 36% | 3.10 | 1.12 | 3.54 | 1.28 |
| Rozen Maiden ~Träumend~ | 3 | 3.33 | 3.10 | 36% | 3.10 | 1.12 | 3.54 | 1.28 |
| Uta Kata | 3 | 3.33 | 3.10 | 36% | 3.10 | 1.12 | 3.54 | 1.28 |
| To Aru Kagaku no Railgun | 3 | 3.33 | 3.10 | 36% | 3.10 | 1.12 | 3.98 | 1.43 |
| Tears to Tiara | 3 | 3.25 | 3.03 | 36% | 3.03 | 1.09 | 3.68 | 1.32 |
| Ookami to Koushinryou - Season 2 | 3 | 3.40 | 3.00 | 36% | 3.00 | 1.08 | 3.60 | 1.30 |
| Ookami to Koushinryou | 3 | 3.17 | 2.98 | 36% | 2.98 | 1.07 | 3.91 | 1.41 |
| Katanagatari | 3 | 3.33 | 2.86 | 36% | 2.86 | 1.03 | 3.07 | 1.11 |
| Zero no Tsukaima | 3 | 3.00 | 2.78 | 36% | 2.78 | 1.00 | 3.98 | 1.43 |
| To Aru Majutsu no Index | 3 | 3.00 | 2.71 | 36% | 2.71 | 0.98 | 3.54 | 1.27 |
| Kingdom (TV) | 4 | 2.00 | 2.00 | 64% | 1.50 | 0.96 | 2.00 | 1.28 |
| The Sacred Blacksmith | 3 | 3.00 | 2.65 | 36% | 2.65 | 0.95 | 3.15 | 1.14 |
| D.Gray-man | 3 | 3.00 | 2.59 | 36% | 2.59 | 0.93 | 2.87 | 1.03 |
| Ichiban Ushiro no Daimaou | 3 | 3.00 | 2.59 | 36% | 2.59 | 0.93 | 3.30 | 1.19 |
| Sora no Otoshimono | 3 | 3.00 | 2.55 | 36% | 2.55 | 0.92 | 3.11 | 1.12 |
| High School of the Dead | 3 | 3.00 | 2.55 | 36% | 2.55 | 0.92 | 3.11 | 1.12 |
| Zero no Tsukaima: Futatsuki no Kishi | 3 | 2.86 | 2.54 | 36% | 2.54 | 0.91 | 3.43 | 1.23 |
| Arifureta Shokugyou de Sekaisaikyou (S1) | 3 | 3.00 | 3.00 | 36% | 2.50 | 0.90 | 3.00 | 1.08 |
| Night Wizard | 3 | 3.00 | 3.00 | 36% | 2.50 | 0.90 | 3.43 | 1.24 |
| Oh! Edo Rocket | 3 | 3.00 | 3.00 | 36% | 2.50 | 0.90 | 3.00 | 1.08 |
| Mugen no Jūnin: Immortal | 3 | 3.00 | 3.00 | 36% | 2.50 | 0.90 | 3.00 | 1.08 |
| Umineko no Naku Koro ni | 3 | 3.00 | 3.00 | 36% | 2.50 | 0.90 | 3.00 | 1.08 |
| Needless | 3 | 3.00 | 2.50 | 36% | 2.50 | 0.90 | 2.86 | 1.03 |
| Arslan Senki TV | 3 | 3.00 | 3.00 | 36% | 2.50 | 0.90 | 3.00 | 1.08 |
| Nanatsu no Taizai: Kamigami no Gekirin | 3 | 3.00 | 3.00 | 36% | 2.50 | 0.90 | 3.00 | 1.08 |
| Hi no Tori | 3 | 3.00 | 3.00 | 36% | 2.50 | 0.90 | 3.00 | 1.08 |
| Jojo's Bizarre Adventure (TV) | 3 | 3.00 | 3.00 | 36% | 2.50 | 0.90 | 3.43 | 1.24 |
| Narutaru ~Mukuro naru hoshi Tama taru ko~ | 3 | 3.00 | 3.00 | 36% | 2.50 | 0.90 | 3.86 | 1.39 |
| Durarara!! x2 Ketsu | 3 | 3.00 | 3.00 | 36% | 2.50 | 0.90 | 3.00 | 1.08 |
| Eizouken ni wa Te o Dasu na! | 3 | 3.00 | 2.50 | 36% | 2.50 | 0.90 | 2.43 | 0.88 |
