Demon Slayer: Kimetsu no Yaiba
Rating Average: 2.0000Rating Stddev: 0
Review Count: 1
Existing Best Bet #: 2
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 2.0000 - 0 ) + ( 0 / 1.6094379124341 )
( 2 ) - 0
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 2.0000 - 0 ) - 0.5 ) * $similarity
( 2 - 0.5 ) * $similarity
1.5 * $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: 6 - 2019, Action, TV, Historical, Supernatural, Swordplay
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 |
|---|---|---|---|---|---|---|---|---|
| Dororo | 5 | 4.00 | 4.00 | 69% | 3.50 | 2.43 | 4.00 | 2.78 |
| Hakuoki | 5 | 3.00 | 3.00 | 69% | 2.50 | 1.74 | 3.00 | 2.08 |
| Hakuouki Season 2 | 5 | 3.00 | 3.00 | 69% | 2.50 | 1.74 | 3.00 | 2.08 |
| Juuni Kokuki | 4 | 3.90 | 3.75 | 44% | 3.75 | 1.67 | 5.03 | 2.24 |
| Basilisk - Kouga Ninpou Chou | 4 | 3.75 | 3.53 | 44% | 3.53 | 1.57 | 4.18 | 1.86 |
| Donten ni Warau | 4 | 4.00 | 4.00 | 44% | 3.50 | 1.56 | 4.00 | 1.78 |
| Versailles no Bara | 4 | 3.50 | 3.25 | 44% | 3.25 | 1.44 | 3.86 | 1.72 |
| Heike Monogatari | 4 | 3.50 | 3.25 | 44% | 3.25 | 1.44 | 3.43 | 1.52 |
| Kiba | 4 | 3.50 | 3.25 | 44% | 3.25 | 1.44 | 3.43 | 1.52 |
| Tate no Yuusha no Nariagari | 4 | 3.50 | 3.25 | 44% | 3.25 | 1.44 | 3.43 | 1.52 |
| Tears to Tiara | 4 | 3.25 | 3.03 | 44% | 3.03 | 1.35 | 3.68 | 1.63 |
| sola | 4 | 3.40 | 3.00 | 44% | 3.00 | 1.33 | 3.60 | 1.60 |
| Samurai Champloo | 4 | 3.33 | 3.00 | 44% | 3.00 | 1.33 | 4.03 | 1.79 |
| Bleach | 4 | 3.43 | 2.90 | 44% | 2.90 | 1.29 | 3.59 | 1.59 |
| Kaze no Stigma | 4 | 3.17 | 2.72 | 44% | 2.72 | 1.21 | 3.38 | 1.50 |
| The Sacred Blacksmith | 4 | 3.00 | 2.65 | 44% | 2.65 | 1.18 | 3.15 | 1.40 |
| D.Gray-man | 4 | 3.00 | 2.59 | 44% | 2.59 | 1.15 | 2.87 | 1.27 |
| Mugen no Juunin | 4 | 3.00 | 2.59 | 44% | 2.59 | 1.15 | 2.87 | 1.27 |
| High School of the Dead | 4 | 3.00 | 2.55 | 44% | 2.55 | 1.13 | 3.11 | 1.38 |
| BEM | 4 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| Shigurui | 4 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| Hakuouki Hekketsuroku | 4 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| Fate/Apocrypha | 4 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| Mars Red | 4 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| Kannazuki no Miko | 4 | 3.00 | 2.50 | 44% | 2.50 | 1.11 | 2.43 | 1.08 |
| Mugen no Jūnin: Immortal | 4 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| Nanatsu no Taizai: Kamigami no Gekirin | 4 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| Angel Beats! | 4 | 2.91 | 2.46 | 44% | 2.46 | 1.09 | 3.50 | 1.56 |
| Bakumatsu Kikansetsu Irohanihoheto | 4 | 2.67 | 2.43 | 44% | 2.43 | 1.08 | 2.88 | 1.28 |
| Ikkitousen: Xtreme Xecutor | 5 | 2.00 | 2.00 | 69% | 1.50 | 1.04 | 2.00 | 1.39 |
| Dororo to Hyakkimaru | 5 | 2.00 | 2.00 | 69% | 1.50 | 1.04 | 2.00 | 1.39 |
| Garo -Guren no Tsuki-- | 5 | 2.00 | 2.00 | 69% | 1.50 | 1.04 | 2.00 | 1.39 |
| Garo: Honoo no Kokuin | 4 | 2.50 | 2.25 | 44% | 2.25 | 1.00 | 2.43 | 1.08 |
| Tsukikage Ran | 4 | 2.67 | 2.20 | 44% | 2.20 | 0.98 | 2.41 | 1.07 |
| Rurouni Kenshin: Meiji Kenkaku Romantan - Tsuiokuhen | 3 | 3.94 | 3.79 | 25% | 3.79 | 0.95 | 6.11 | 1.53 |
| Darker than Black - Kuro no Keiyakusha | 3 | 3.80 | 3.60 | 25% | 3.60 | 0.90 | 4.40 | 1.10 |
| Yoake Mae Yori Ruri Iro Na | 4 | 2.00 | 2.00 | 44% | 2.00 | 0.89 | 3.00 | 1.33 |
| Interlude | 3 | 3.75 | 3.53 | 25% | 3.53 | 0.88 | 4.18 | 1.04 |
| Durarara!! | 3 | 3.75 | 3.53 | 25% | 3.53 | 0.88 | 4.18 | 1.04 |
| Mahou Shoujo Lyrical Nanoha A's | 3 | 3.75 | 3.53 | 25% | 3.53 | 0.88 | 4.18 | 1.04 |
| Fruits Basket (2019) | 3 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Ushio to Tora TV 2 | 3 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Lord El-Melloi II Sei no Jikenbo: Rail Zeppelin Grace Note | 3 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Le Chevalier D`Eon | 3 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Golden Kamuy 2 | 3 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Junketsu no Maria | 3 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Vinland Saga Season 2 | 3 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Shiki | 3 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.43 | 1.11 |
| Kemono Jihen | 3 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Hanamonogatari | 3 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
