To Aru Majutsu no Index-tan
Rating Average: 2.0000Rating Stddev: 0
Review Count: 2
Existing Best Bet #: 2.43067655807339
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 2.0000 - 0 ) + ( 0.693147180559945 / 1.6094379124341 )
( 2 ) - 0.430676558073393
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: 5 - 2009, TV Special, Fantasy, Parody, 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 |
|---|---|---|---|---|---|---|---|---|
| Suzumiya Haruhi-chan no Yuuutsu (ONA) | 4 | 2.50 | 2.25 | 64% | 2.25 | 1.44 | 2.43 | 1.56 |
| Haiyore! Nyaruko-san OVA | 3 | 4.00 | 4.00 | 36% | 3.50 | 1.26 | 4.00 | 1.44 |
| Aa! Megami-sama - Tatakau Tsubasa | 3 | 4.00 | 4.00 | 36% | 3.50 | 1.26 | 4.68 | 1.69 |
| Suzumiya Haruhi no Shoushitsu | 3 | 4.00 | 4.00 | 36% | 3.50 | 1.26 | 4.68 | 1.69 |
| Air in Summer | 3 | 3.40 | 3.16 | 36% | 3.16 | 1.14 | 3.91 | 1.41 |
| 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 |
| Queen's Blade: Rurou no Senshi OVA | 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 |
| Sora no Otoshimono | 3 | 3.00 | 2.55 | 36% | 2.55 | 0.92 | 3.11 | 1.12 |
| Higurashi no Naku Koro ni Rei | 3 | 3.00 | 3.00 | 36% | 2.50 | 0.90 | 3.00 | 1.08 |
| Ookami to Kohaku-iro no Yuuutsu | 3 | 3.00 | 3.00 | 36% | 2.50 | 0.90 | 3.68 | 1.33 |
| Needless | 3 | 3.00 | 2.50 | 36% | 2.50 | 0.90 | 2.86 | 1.03 |
| Da Capo If | 3 | 3.00 | 2.50 | 36% | 2.50 | 0.90 | 2.43 | 0.88 |
| Umineko no Naku Koro ni | 3 | 3.00 | 3.00 | 36% | 2.50 | 0.90 | 3.00 | 1.08 |
| Natsu no Arashi! Akinai-chuu | 3 | 2.50 | 2.25 | 36% | 2.25 | 0.81 | 2.43 | 0.88 |
| Elf wo Karumono Tachi II | 3 | 2.50 | 2.25 | 36% | 2.25 | 0.81 | 2.86 | 1.03 |
| Suzumiya Haruhi no Yuutsu 2009 | 3 | 2.40 | 2.16 | 36% | 2.16 | 0.78 | 2.91 | 1.05 |
| K-On! TV Special | 3 | 2.33 | 2.10 | 36% | 2.10 | 0.76 | 2.54 | 0.92 |
| Queen's Blade: Gyokuza no Tsugumono | 3 | 2.33 | 2.10 | 36% | 2.10 | 0.76 | 2.54 | 0.92 |
| Kannagi (OVA) | 3 | 2.25 | 2.03 | 36% | 2.03 | 0.73 | 2.68 | 0.96 |
| Fight Ippatsu! Juuden-chan!! | 3 | 2.25 | 2.03 | 36% | 2.03 | 0.73 | 2.68 | 0.96 |
| Kanokon: Manatsu no Daishanikusai | 3 | 2.50 | 1.94 | 36% | 1.94 | 0.70 | 2.50 | 0.90 |
| Full Metal Panic ~Fumoffu~ | 2 | 4.00 | 4.00 | 16% | 4.00 | 0.64 | 5.59 | 0.89 |
| Juuni Kokuki | 2 | 3.90 | 3.75 | 16% | 3.75 | 0.60 | 5.03 | 0.80 |
| Kamichu! | 2 | 3.80 | 3.60 | 16% | 3.60 | 0.58 | 4.40 | 0.70 |
| Suzumiya Haruhi no Yuutsu | 2 | 3.80 | 3.60 | 16% | 3.60 | 0.58 | 4.83 | 0.77 |
| Rozen Maiden | 2 | 3.75 | 3.53 | 16% | 3.53 | 0.57 | 4.61 | 0.74 |
| Interlude | 2 | 3.75 | 3.53 | 16% | 3.53 | 0.57 | 4.18 | 0.67 |
| Hayate no Gotoku !! | 2 | 3.75 | 3.53 | 16% | 3.53 | 0.57 | 4.18 | 0.67 |
| Mahoujin GuruGuru | 2 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.00 | 0.64 |
| Lord El-Melloi II Sei no Jikenbo: Rail Zeppelin Grace Note - Tokubetsu-hen | 2 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.00 | 0.64 |
| Summer Wars | 2 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.68 | 0.75 |
| Nekomonogatari -Kuro- | 2 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.00 | 0.64 |
| Fullmetal Alchemist OVA1: the Blind Alchemist | 2 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.00 | 0.64 |
| Kemono no Souja Erin | 2 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.00 | 0.64 |
| Mushishi: Zoku-Shō: Suzu no Shizuku | 2 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.00 | 0.64 |
| Slayers EVOLUTION-R | 2 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.43 | 0.71 |
| Owarimonogatari Second Season | 2 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.00 | 0.64 |
| Da Capo II 2nd Season | 2 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.43 | 0.71 |
| Gekijō-ban Mahō Shōjo Madoka Magica Kōhen: Eien no Monogatari | 2 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.00 | 0.64 |
| Shakugan no Shana-tan Returns | 2 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.00 | 0.64 |
| Fairy Tail | 2 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.00 | 0.64 |
| Aki-Sora | 2 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.00 | 0.64 |
| Kateikyoushi Hitman Reborn! | 2 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.43 | 0.71 |
| Made in Abyss: Retsujitsu no Ougonkyou | 2 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.00 | 0.64 |
| Haiyore! Nyaruko-san W | 2 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.00 | 0.64 |
| Bindzume Yousei | 2 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.43 | 0.71 |
| Made in Abyss: Fukaki Tamashii no Reimei | 2 | 4.00 | 4.00 | 16% | 3.50 | 0.56 | 4.00 | 0.64 |
