Fate/Kaleid liner Prisma Illya
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: 9 - 2013, Action, Action Comedy, TV, Fantasy, Mahou Shoujo, Elementary School, Magic, Spinoff
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 |
|---|---|---|---|---|---|---|---|---|
| Mahou Shoujo Lyrical Nanoha | 7 | 3.75 | 3.53 | 60% | 3.53 | 2.14 | 4.18 | 2.53 |
| Mahou Shoujo Lyrical Nanoha A's | 6 | 3.75 | 3.53 | 44% | 3.53 | 1.57 | 4.18 | 1.86 |
| Little Witch Academia TV | 5 | 4.00 | 4.00 | 30% | 3.50 | 1.08 | 4.00 | 1.23 |
| Junketsu no Maria | 5 | 4.00 | 4.00 | 30% | 3.50 | 1.08 | 4.00 | 1.23 |
| Mahou Shoujo Lyrical Nanoha The MOVIE 1st | 5 | 4.00 | 4.00 | 30% | 3.50 | 1.08 | 4.00 | 1.23 |
| Sasami: Mahou Shoujo Club | 5 | 3.50 | 3.25 | 30% | 3.25 | 1.00 | 3.43 | 1.06 |
| Bleach | 5 | 3.43 | 2.90 | 30% | 2.90 | 0.90 | 3.59 | 1.11 |
| Zero no Tsukaima | 5 | 3.00 | 2.78 | 30% | 2.78 | 0.86 | 3.98 | 1.23 |
| Tsubasa Chronicle | 5 | 3.20 | 2.71 | 30% | 2.71 | 0.84 | 3.22 | 0.99 |
| Zero no Tsukaima: Futatsuki no Kishi | 5 | 2.86 | 2.54 | 30% | 2.54 | 0.78 | 3.43 | 1.06 |
| Mushoku Tensei_ Isekai Ittara Honki Dasu (TV 1) | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Nozomanu Fushi no Boukensha | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Seija Musou | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Zenshu | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Mushoku Tensei II - Isekai Ittara Honki Dasu (TV 3) | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Arafo Otoko no Isekai Tsuhan | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Mushoku Tensei - Isekai Ittara Honki Dasu (TV 2) | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Shinchou Yuusha - Kono Yuusha ga Ore TUEEE Kuse ni Shinchou Sugiru | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Hyakka Ryouran Samurai Bride | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| The Unlimited - Hyōbu Kyōsuke | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Samurai Flamenco | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| To Aru Kagaku no Railgun S | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Fate/ stay night Unlimited Blade Works TV | 5 | 3.00 | 3.00 | 30% | 2.50 | 0.77 | 3.00 | 0.93 |
| Chrono Crusade | 4 | 3.89 | 3.73 | 19% | 3.73 | 0.74 | 4.94 | 0.98 |
| Scrapped Princess | 4 | 3.88 | 3.71 | 19% | 3.71 | 0.73 | 4.84 | 0.96 |
| Orphen | 4 | 3.85 | 3.67 | 19% | 3.67 | 0.72 | 5.08 | 1.00 |
| Mahou Shoujo Lyrical Nanoha StrikerS | 5 | 2.75 | 2.34 | 30% | 2.34 | 0.72 | 2.78 | 0.86 |
| Log Horizon | 5 | 2.50 | 2.25 | 30% | 2.25 | 0.69 | 2.43 | 0.75 |
| Re: Zero Kara Hajimeru Isekai Seikatsu | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Hunter X Hunter (2011) | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Hagure Yuusha no Aesthetica | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Kill la Kill | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Hakkenden: Touhou Hakken Ibun | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Fairy Tail | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Naruto Shippuuden (TV) | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Haiyore! Nyaruko-san W | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Re: Zero Kara Hajimeru Isekai Seikatsu (TV 2) | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Akiba Maid Sensou | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Mahoujin GuruGuru | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Lord El-Melloi II Sei no Jikenbo: Rail Zeppelin Grace Note | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Ushio to Tora TV | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Ushio to Tora TV 2 | 4 | 4.00 | 4.00 | 19% | 3.50 | 0.69 | 4.00 | 0.79 |
| Gokudo-kun Manyuki | 4 | 3.67 | 3.43 | 19% | 3.43 | 0.68 | 4.31 | 0.85 |
| Slayers Try | 4 | 3.69 | 3.39 | 19% | 3.39 | 0.67 | 4.68 | 0.92 |
| Machine-Doll wa Kizutsukanai | 6 | 2.00 | 2.00 | 44% | 1.50 | 0.67 | 2.00 | 0.89 |
| Zetsuen no Tempest | 4 | 3.50 | 3.25 | 19% | 3.25 | 0.64 | 3.43 | 0.68 |
| Re:CREATORS | 4 | 3.50 | 3.25 | 19% | 3.25 | 0.64 | 3.43 | 0.68 |
| Sekirei | 4 | 3.50 | 3.25 | 19% | 3.25 | 0.64 | 4.11 | 0.81 |
| Kiba | 4 | 3.50 | 3.25 | 19% | 3.25 | 0.64 | 3.43 | 0.68 |
| Loveless (TV) | 4 | 3.50 | 3.25 | 19% | 3.25 | 0.64 | 3.43 | 0.68 |
