Mahou Sensei Negima! Natsu
Rating Average: 2.0000Rating Stddev: 1
Review Count: 2
Existing Best Bet #: 1.43067655807339
( $rating_average - $rating_stddev ) + ( log($reviews) / log(5) )
( 2.0000 - 1 ) + ( 0.693147180559945 / 1.6094379124341 )
( 1 ) - 0.430676558073393
Proposed Best Bet #:
( ( $rating_average - ( $rating_stddev / 2) ) - ( ( $stddev==0 and $reviews<5)? .5: 0 ) * $similarity
( ( 2.0000 - 0.5 ) - 0 ) * $similarity
( 1.5 - 0 ) * $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: 10 - 2006, OVA, Fantasy, Modern, Comedy, Harem, Middle School, Romantic Comedy, Spinoff, Fan Service
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 |
|---|---|---|---|---|---|---|---|---|
| Magikano | 7 | 3.80 | 3.60 | 48% | 3.60 | 1.76 | 4.40 | 2.16 |
| Tenchi Muyou! Ryououki | 7 | 3.45 | 2.96 | 48% | 2.96 | 1.45 | 4.39 | 2.15 |
| Shakugan no Shana-tan Returns | 6 | 4.00 | 4.00 | 36% | 3.50 | 1.26 | 4.00 | 1.44 |
| Love Hina Again | 6 | 3.40 | 3.04 | 36% | 3.04 | 1.10 | 4.37 | 1.57 |
| Love Hina - Motoko's Choice | 6 | 3.33 | 2.96 | 36% | 2.96 | 1.07 | 3.70 | 1.33 |
| Love Hina Christmas Special | 5 | 4.00 | 4.00 | 25% | 4.00 | 1.00 | 5.43 | 1.36 |
| Zero no Tsukaima | 6 | 3.00 | 2.78 | 36% | 2.78 | 1.00 | 3.98 | 1.43 |
| School Days OVA | 6 | 2.75 | 2.53 | 36% | 2.53 | 0.91 | 3.18 | 1.14 |
| Sekirei ~Pure Engagement~ | 6 | 3.00 | 2.50 | 36% | 2.50 | 0.90 | 2.86 | 1.03 |
| Full Metal Panic! The Second Raid (OVA) | 5 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.86 | 1.22 |
| Haiyore! Nyaruko-san OVA | 5 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Yuri Kuma Arashi | 5 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Haiyore! Nyaruko-san W | 5 | 4.00 | 4.00 | 25% | 3.50 | 0.88 | 4.00 | 1.00 |
| Nagasarete Airantou | 5 | 3.50 | 3.25 | 25% | 3.25 | 0.81 | 4.11 | 1.03 |
| Sekirei | 5 | 3.50 | 3.25 | 25% | 3.25 | 0.81 | 4.11 | 1.03 |
| Mahou Sensei Negima! Haru | 7 | 2.00 | 1.65 | 48% | 1.65 | 0.81 | 2.15 | 1.06 |
| Love Hina | 5 | 3.55 | 3.19 | 25% | 3.19 | 0.80 | 4.97 | 1.24 |
| Kannagi | 6 | 2.57 | 2.21 | 36% | 2.21 | 0.79 | 3.05 | 1.10 |
| Chobits | 5 | 3.56 | 3.16 | 25% | 3.16 | 0.79 | 4.82 | 1.20 |
| Love Hina Spring Special | 6 | 2.56 | 2.14 | 36% | 2.14 | 0.77 | 3.09 | 1.11 |
| Maburaho | 5 | 3.43 | 3.06 | 25% | 3.06 | 0.77 | 3.91 | 0.98 |
| Ichigo 100% OVA 5 | 5 | 3.25 | 3.03 | 25% | 3.03 | 0.76 | 3.68 | 0.92 |
| Honoo no Labyrinth | 5 | 3.25 | 3.03 | 25% | 3.03 | 0.76 | 3.68 | 0.92 |
| Hand Maid May Special | 5 | 3.40 | 3.00 | 25% | 3.00 | 0.75 | 3.60 | 0.90 |
| Sumomomo Momomo ~ Chijou Saikyou no Yome | 5 | 3.20 | 3.00 | 25% | 3.00 | 0.75 | 3.80 | 0.95 |
| REC | 5 | 3.14 | 2.97 | 25% | 2.97 | 0.74 | 4.00 | 1.00 |
| Tokimeki Memorial - Only Love | 6 | 2.00 | 2.00 | 36% | 2.00 | 0.72 | 3.00 | 1.08 |
| Omamori Himari | 5 | 3.00 | 2.65 | 25% | 2.65 | 0.66 | 3.15 | 0.79 |
| Hanaukyo Maid Tai | 5 | 3.00 | 2.59 | 25% | 2.59 | 0.65 | 3.30 | 0.82 |
| Ichiban Ushiro no Daimaou | 5 | 3.00 | 2.59 | 25% | 2.59 | 0.65 | 3.30 | 0.82 |
| Kage Kara Mamoru! | 5 | 3.00 | 2.59 | 25% | 2.59 | 0.65 | 2.87 | 0.72 |
| Nyan Koi! | 5 | 3.00 | 2.55 | 25% | 2.55 | 0.64 | 3.11 | 0.78 |
| Zero no Tsukaima: Futatsuki no Kishi | 5 | 2.86 | 2.54 | 25% | 2.54 | 0.63 | 3.43 | 0.86 |
| Ichigo 100% TV | 5 | 2.75 | 2.53 | 25% | 2.53 | 0.63 | 3.18 | 0.79 |
| Zero no Tsukaima: Princess no Rondo | 5 | 3.00 | 2.50 | 25% | 2.50 | 0.62 | 2.43 | 0.61 |
| Mai-HiME Omake Special | 5 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.43 | 0.86 |
| Nurse Witch Komugi-chan Magikarte | 5 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.43 | 0.86 |
| Higurashi no Naku Koro ni: Nekogoroshi-hen | 5 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Gotoubun no Hanayome | 5 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Black Lagoon Omake | 5 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.43 | 0.86 |
| To Heart 2 adnext | 5 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Ore, Twintail ni Narimasu | 5 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| To Heart 2 OVA | 5 | 3.00 | 3.00 | 25% | 2.50 | 0.62 | 3.00 | 0.75 |
| Hand Maid May | 5 | 2.94 | 2.49 | 25% | 2.49 | 0.62 | 3.76 | 0.94 |
| Kyou no Go no Ni (OVA) | 5 | 2.60 | 2.36 | 25% | 2.36 | 0.59 | 3.11 | 0.78 |
| Akane-Iro ni Somaru Saka (TV) | 5 | 2.75 | 2.34 | 25% | 2.34 | 0.58 | 2.78 | 0.70 |
| Da Capo Second Season | 5 | 2.75 | 2.34 | 25% | 2.34 | 0.58 | 2.78 | 0.70 |
| Maria+Holic | 5 | 2.75 | 2.34 | 25% | 2.34 | 0.58 | 2.78 | 0.70 |
| Kamichu! | 4 | 3.80 | 3.60 | 16% | 3.60 | 0.58 | 4.40 | 0.70 |
| Suzumiya Haruhi no Yuutsu | 4 | 3.80 | 3.60 | 16% | 3.60 | 0.58 | 4.83 | 0.77 |
