Rental Magica
Rating Average: 2.3333Rating Stddev: 0.4714045207910317
Review Count: 3
Existing Best Bet #: 2.54450167369495
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 2.3333 - 0.4714045207910317 ) + ( 1.09861228866811 / 1.6094379124341 )
( 1.86189547920897 ) - 0.682606194485985
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 2.3333 - 0.235702260395516 ) - 0 ) * $similarity
( 2.09759773960448 - 0 ) * $similarity
2.09759773960448 * $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 - 2007, TV, Fantasy, Modern, Action Comedy, Magic
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 |
|---|---|---|---|---|---|---|---|---|
| Night Wizard | 6 | 3.00 | 3.00 | 100% | 2.50 | 2.50 | 3.43 | 3.43 |
| Little Witch Academia TV | 5 | 4.00 | 4.00 | 69% | 3.50 | 2.43 | 4.00 | 2.78 |
| Nagasarete Airantou | 5 | 3.50 | 3.25 | 69% | 3.25 | 2.26 | 4.11 | 2.86 |
| Bleach | 5 | 3.43 | 2.90 | 69% | 2.90 | 2.02 | 3.59 | 2.49 |
| Zero no Tsukaima: Futatsuki no Kishi | 5 | 2.86 | 2.54 | 69% | 2.54 | 1.76 | 3.43 | 2.38 |
| Orphen | 4 | 3.85 | 3.67 | 44% | 3.67 | 1.63 | 5.08 | 2.26 |
| Tokyo Majin Gakuen Kenpuchou: Tou | 5 | 2.75 | 2.34 | 69% | 2.34 | 1.62 | 2.78 | 1.93 |
| Magikano | 4 | 3.80 | 3.60 | 44% | 3.60 | 1.60 | 4.40 | 1.96 |
| Haiyore! Nyaruko-san W | 4 | 4.00 | 4.00 | 44% | 3.50 | 1.56 | 4.00 | 1.78 |
| Bindzume Yousei | 4 | 4.00 | 4.00 | 44% | 3.50 | 1.56 | 4.43 | 1.97 |
| Hagure Yuusha no Aesthetica | 4 | 4.00 | 4.00 | 44% | 3.50 | 1.56 | 4.00 | 1.78 |
| Akiba Maid Sensou | 4 | 4.00 | 4.00 | 44% | 3.50 | 1.56 | 4.00 | 1.78 |
| Mahoujin GuruGuru | 4 | 4.00 | 4.00 | 44% | 3.50 | 1.56 | 4.00 | 1.78 |
| Shakugan no Shana II | 4 | 4.00 | 4.00 | 44% | 3.50 | 1.56 | 4.43 | 1.97 |
| Naruto Shippuuden (TV) | 4 | 4.00 | 4.00 | 44% | 3.50 | 1.56 | 4.00 | 1.78 |
| Jigoku Shoujo Futakomori | 4 | 4.00 | 4.00 | 44% | 3.50 | 1.56 | 4.68 | 2.08 |
| Majin Tantei Nougami Neuro | 4 | 4.00 | 4.00 | 44% | 3.50 | 1.56 | 4.00 | 1.78 |
| Junketsu no Maria | 4 | 4.00 | 4.00 | 44% | 3.50 | 1.56 | 4.00 | 1.78 |
| Iroduku Sekai no Ashita kara | 4 | 4.00 | 4.00 | 44% | 3.50 | 1.56 | 4.00 | 1.78 |
| Gokudo-kun Manyuki | 4 | 3.67 | 3.43 | 44% | 3.43 | 1.52 | 4.31 | 1.91 |
| Kaibutsu Oujo | 5 | 2.33 | 2.10 | 69% | 2.10 | 1.46 | 2.54 | 1.77 |
| Amagi Brilliant Park | 4 | 3.50 | 3.25 | 44% | 3.25 | 1.44 | 3.43 | 1.52 |
| Loveless (TV) | 4 | 3.50 | 3.25 | 44% | 3.25 | 1.44 | 3.43 | 1.52 |
| Re:CREATORS | 4 | 3.50 | 3.25 | 44% | 3.25 | 1.44 | 3.43 | 1.52 |
| Higurashi no Naku Koro ni Kai | 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 |
| To Aru Majutsu no Index II | 4 | 3.50 | 3.25 | 44% | 3.25 | 1.44 | 3.43 | 1.52 |
| Mahou Tsukai ni Taisetsu na Koto | 4 | 3.55 | 3.22 | 44% | 3.22 | 1.43 | 4.38 | 1.95 |
| Naruto | 4 | 3.62 | 3.20 | 44% | 3.20 | 1.42 | 4.87 | 2.16 |
| Rozen Maiden ~Träumend~ | 4 | 3.33 | 3.10 | 44% | 3.10 | 1.38 | 3.54 | 1.58 |
| Ghost Hunt | 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 |
| Aa! Megami-sama: Chichai tte Koto wa Benri da Ne | 4 | 3.33 | 2.91 | 44% | 2.91 | 1.29 | 4.03 | 1.79 |
| Zero no Tsukaima | 4 | 3.00 | 2.78 | 44% | 2.78 | 1.23 | 3.98 | 1.77 |
| Fate/stay night | 4 | 3.14 | 2.73 | 44% | 2.73 | 1.21 | 3.52 | 1.56 |
| Kaze no Stigma | 4 | 3.17 | 2.72 | 44% | 2.72 | 1.21 | 3.38 | 1.50 |
| To Aru Majutsu no Index | 4 | 3.00 | 2.71 | 44% | 2.71 | 1.21 | 3.54 | 1.57 |
| Bishoujo Senshi Sailor Moon R | 4 | 3.20 | 2.71 | 44% | 2.71 | 1.20 | 3.22 | 1.43 |
| D.Gray-man | 4 | 3.00 | 2.59 | 44% | 2.59 | 1.15 | 2.87 | 1.27 |
| Noragami | 4 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| The Last Summoner S1 | 4 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| RDG: Red Data Girl | 4 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| Shangri-La Frontier II | 4 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| Sekirei ~Pure Engagement~ | 4 | 3.00 | 2.50 | 44% | 2.50 | 1.11 | 2.86 | 1.27 |
| Zenshu | 4 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| Persona 4 the Golden Animation | 4 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| Arafo Otoko no Isekai Tsuhan | 4 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| Kobayashi-san Chi no Maid Dragon S | 4 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| Fate/ stay night Unlimited Blade Works TV | 4 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.00 | 1.33 |
| JoJo no Kimyou na Bouken: Stardust Crusaders | 4 | 3.00 | 3.00 | 44% | 2.50 | 1.11 | 3.43 | 1.52 |
